RC Car
Frequently asked questions and inquiries
I want to run multiple cars at the same time
Since it uses the 2.4GHz band, multiple units can be operated simultaneously without interference.
Please pair each device in turn.
If pairing is not successful, wait about 30 seconds and then try again.
Try pairing in order.
There is a strange noise like "beep" or "poo" when driving
The high-pitched sounds such as "beep" or "poop" that occur while driving are due to PWM control.
Especially at low speeds, short pulses are sent at long intervals, making high tones stand out.
To put it in perspective, it's like the sound of a car engine; it always occurs.
[C74] When I turn the steering wheel and operate the throttle, there is a rattle.
The "maximum" setting of the turning angle is based on customization using metal parts.
If you drive with the standard suspension, it will rattle and make a strange noise like "cranky".
The increased load could cause the propeller shaft to come off.
If you want to run it without customization,
Press the ST.EP button and reset the steering angle to "small".
[C74] One side of the tire lifts off the ground when turning
Because the differential lock is used to emphasize off-road performance,
When turning, one side of the tire may lift off the ground.
Due to structural specifications, it is not possible to completely prevent this behavior,
This can be reduced to some extent by pressing the steering EP button to set the turning angle to small.
I want to know the driving time
The running time is about 30 minutes. It takes about 4 hours to fully charge.
Charging is possible from a PC, but since the power supply is unstable, there is a risk of shortening the battery life.
You can also charge the device using a 1A plug sold at 100 yen shops, but please note that this will take longer.
Regarding the charging environment, the recommended standard is up to 5V 2.0A.
Please note that if you charge using a plug with a current of 2.0A or more, it may damage the charging cable, battery, or in the worst case scenario, even the circuit board.
It can only run for about 5 minutes from a fully charged state, and it takes about 10 minutes to fully charge from a completely discharged state, etc.
If your battery life is extremely short or if it charges quickly, the battery may be faulty.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
What is the speed per hour?
The D12 is about 12km/h.
The C series (C14, C24, C24-1, C34) has a maximum speed of approximately 7km/h.
Please take a look at the videos below, which introduce both the D12 and C series.
If you have any other questions, please contact us using the information below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Regarding the receiver/ESC (January 2022)
There have been changes to the specifications of the receiver/ESC for the C14, C24, C24-1, and C34 in order to improve quality.
■Changes : The system will be gradually replaced with a new type of receiver and ESC.
There is no functional difference.
■How to distinguish the new type・New type: Circuit board with model number "XX-412RR" printed on it ・Current type: Circuit board with model number "XX-162RR" printed on it
There may be some confusion for a while,
Please be aware of the above when purchasing the WPL JAPAN C Series, receiver and ESC only.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The tire is warped and won't go straight.
Some distortion is within the specifications.
The C34 in particular is prone to distortion due to the characteristics of the tire shape.
To a certain extent this will be within the range of specifications, but if it significantly impedes driving, please contact customer support and attach a video of the driving session and images of the tires.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
[C34] The door is bent
There are cases where the door is warped on the C34.
This is the structural specification.
It is possible to straighten the hair by hand to some extent by using hot air from a hair dryer.
If it interests you, please give it a try.
*If you apply hot air too strongly, it may deform more than necessary.
Please carry out this work at your own risk.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I am missing an accessory/I want to know the list of accessories
The items included with the D12, C14, C24, C24-1, and C34 are as follows. (The battery has been removed from the photo.)
D12
C14
C24
C24-1
C34
If you notice anything missing, please contact customer support.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I want to know how long it takes to fully charge
It takes about 4 hours to fully charge.
Charging is possible from a PC, but since the power supply is unstable, there is a risk of shortening the battery life.
You can also charge the device using a 1.0A plug sold at 100 yen shops, but please note that this will take longer.
The recommended specification is up to 5V 2.0A.
Please note that if you charge using a plug with a current of 2.0A or more, it may damage the charging cable, battery, or in the worst case scenario, even the circuit board.
It can only run for about 5 minutes from a fully charged state, and it takes about 10 minutes to fully charge from a completely discharged state, etc.
If your battery life is extremely short or if it charges quickly, the battery may be faulty.
I want to know how to store the battery.
Regarding battery storage and maintenance, even if you will not be using the battery for a long period of time, please charge and discharge it regularly.
When storing the battery for a long period of time, it is best to have the battery charge at around 50-60%. Please do not leave the battery fully charged or completely discharged for a long period of time.
*The battery may deteriorate significantly.
*To prevent deterioration, please use it about once a month.
Please rest assured that WPL JAPAN products are designed with overcharge protection in place for batteries and charging devices in accordance with PSE standards.
*We have received inquiries from customers who have purchased parallel imported products, who may have thought that we (WPL JAPAN) are the manufacturer of WPL products, saying that they "heard a popping sound" or "there was a burning smell coming from the battery area." However, we have no involvement with parallel imported products (regular WPL products) and they are outside of our jurisdiction. We apologize for the inconvenience, but we ask that you contact the store that sells the imported products.
If you have any other questions, please feel free to contact us using the form below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I want to know the difference between parallel imports
Our products (WPL JAPAN) have been independently certified with the Technical Conformity Mark and have passed the Radio Law. Similarly, the battery has also been certified with the PSE Mark. Parallel imports do not have the Technical Conformity Mark, so they are in violation of the Radio Law and cannot be used in Japan.
As we are not involved in the manufacture or sale of parallel imports, customer support is also outside the scope of our coverage. If the product you have is not "WPL JAPAN" but a parallel import, please be sure to contact the retailer from which you purchased it.
*We do wholesale some radio control shops directly, but generally all WPL products sold outside our direct stores are parallel imports.
\*WPL JAPAN products are designed with overcharge protection for batteries and charging devices based on the PSE mark. In addition, charging is automatically stopped after a full charge, so please rest assured.
It bends when reversing
Regarding the C series, due to its structure, it will turn to some extent when reversing. This is a specification, so we ask for your understanding.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
When the steering wheel is turned, the car floats.
The following operations are subject to the steering mechanism specifications.
・Turn the steering wheel to the right: The body sinks. ・Turn the steering wheel to the left: The body floats.
This can be improved by using the [ Axle Servo Mount Kit] sold by our company.
The following are the benefits of implementation.
-Improved one-sided sinking -Equalized left and right turning angles (further improved by adjusting the EPA settings on the radio)
- Lower center of gravity - Improved bump-in/bump-out (the phenomenon where the steering turns naturally as the suspension sinks)
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Turning radius is different on the left and right
For standard vehicle bodies, this is a structural specification.
If you want to make the cutting angles closer to uniform,
Axle servo mount , turbo racing transmitter/receiver , etc.
It will be necessary to replace the mechanism so that the EPA can be set separately for the left and right sides.
The benefits of this introduction are as follows:
-Improved one-sided sinking -Equalized left and right turning angles (further improved by adjusting the EPA settings on the radio)
- Lower center of gravity - Improved bump-in/bump-out (the phenomenon where the steering turns naturally as the suspension sinks)
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Receiver/ESC/cord connection
Please check the image below for the cable connection positions on the replacement boards for C14, C24, C24-1, and C34.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
When upgrading the motor
The receiver/ESC included with the RTR is designed to be used in combination with a standard gearbox (180 size motor).
Therefore, when combined with a 370 motor (such as a 2-speed transmission gearbox), it may not be able to achieve its full performance, although this will depend on the vehicle weight and load.
Since the ESC is under greater load than expected, we recommend replacing it with an ESC that is compatible with a 370 size motor.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
troubleshooting
I can't steer, move forward or backward even when I operate the transmitter.
If you are unable to steer or move forward or backward, there are several possible causes. Please try the following.
Is pairing possible?
First, check whether pairing is possible. If pairing is not possible, there may be a problem with the transmitter (radio control) or the receiving board.
- Check whether the vehicle's power is turned on (headlights flashing)
- Check whether the transmitter is turned on (the light will flash)
- Turn the vehicle's power OFF then ON, then turn on the transmitter to see if pairing is possible → Both the headlights and transmitter will be lit.
If you are unable to pair, or if you have paired but are unable to move forward, backward or steer, and the motor is not working at all, please contact us using the inquiry form.
The vehicle can be steered (turned left and right), but cannot move forward or backward.
This may be due to a malfunction or failure of the motor gearbox or a faulty throttle in the transmitter.
For more information, please see our FAQ page.
I can move forward and backward, but I can't steer (turn the steering wheel).
This seems to be a servo failure or malfunction.
For more details, please see our FAQ page.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I can't steer, move forward or backward even when I operate the transmitter.
The propeller shaft may not be secured.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Unable to move forward or backward
Motor failure, gear damage in the gearbox,
There may be a problem with the transmitter throttle.
-The motor runs when the transmitter throttle trigger is operated.
- If the vehicle is flipped upside down and there is no load, it will move forward and backward.
If the above applies, the gear and shaft inside the gearbox may not be sufficiently crimped.
You can also repair it yourself (first aid). Please see our YouTube channel for more information.
If the above does not apply and the motor does not work at all, there may be a problem with the motor, transmitter, or receiving board.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Unable to steer left or right
I think it's a servo problem.
If this issue occurs during the first run, it may be a manufacturing defect, so please contact us using the inquiry form.
If the servo was working properly upon arrival, it is possible that it was damaged by driving under heavy load.
If the product becomes damaged after several uses, please purchase a new one from the link below.
Please see the video below for instructions on how to replace the servo.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Unable to steer left or right
[Example]
・Suddenly it stopped moving. ・Just before that, it went over a bump in the road.
[Cause and Response]
Even when I operate the switch on the vehicle, the headlights do not appear to turn on, and the transmitter light remains flashing, so it is possible that the vehicle is not receiving power for some reason.
[Reconfirmation]
① Is the driving battery fully charged? ② When installing the driving battery, is the connector securely connected? - Connect it firmly until the tabs snap into place. ③ First, turn on the transmitter power and check that the light is flashing. ④ Turn on the vehicle power and check that the headlights of the transmitter and vehicle change from flashing to lit.
→ After checking the above, the issue was resolved.
If the problem is not resolved:
Please contact customer support.
If you could send us a video of the situation, we would be able to assist you more smoothly.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The power turns off immediately after being turned on
The vehicle battery is not charging properly and the remaining charge is insufficient.
Possible causes include insufficient battery charge in the transmitter or a faulty circuit board.
■When charging the battery, the USB charger lamp may light up in a pattern other than the one listed below.
The battery or the charger, or both, may be faulty.
Charging: Green light/flashing, red light/on Charging: Green light/on, red light/on (or only charging: green light/on)
■The pairing suddenly ends.
The transmitter battery may not have enough power remaining.
If it is rechargeable, make sure it is fully charged, if not try replacing it with a new battery.
If the above two points do not apply, there may be some kind of problem with the board.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The green charging light keeps flashing
Normally, charging is completed in about 4 hours,
If it takes too long to fully charge or the fully charged light never comes on,
The battery or charging cable may be faulty.
*Please be sure to charge with the included charger.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I heard a popping noise and smelled a burning smell while charging
We are very sorry, but this is a parallel import product sold by another store that has no connection with our company.
Only products purchased from our company can be returned, refunded, or exchanged for a new product.
The products we sell have been certified with the Technical Conformity Mark and the batteries are PSE certified and have overcharge protection settings.
Parallel imports are not covered by our warranty.
For detailed information on the inspection status, we ask that you contact the retailer of the imported product directly.
If you find any damage or defects in a product purchased from the official RAYWOOD website (official website, Amazon, Rakuten Ichiba, Yahoo! Shopping, aupay), please contact us using the information below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
[Caution] Regarding handling of transmitters
The transmitter (radio control unit) is a precision instrument and is vulnerable to water and shocks.
If the internal wiring falls off due to impact such as dropping, it may come into contact with other wiring, causing a short circuit and generating heat, as shown in the image.
Please be extremely careful when handling.
※Please do not disassemble the product.
If you find that the transmitter is overheating after receiving the product, please contact us using the inquiry form below and we will assist you.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Product damage and parts sales
Regarding sales of metal parts and custom parts
Currently available parts can be purchased from the links below.
Other parts will be released in due course.
Detailed information regarding the start of sales will be announced on various social media platforms.
Please take a look if you are interested.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I damaged a part/I need a spare part
Parts are available for purchase from the link below. Spare parts are being added one after another.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The windshield was broken.
For the D12, C14, and C24, we sell spare parts.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Tips
Can I replace the wheels?
The wheels can be removed and replaced.
We also offer optional parts such as tires and wheels in different colors, materials, and designs than the default ones, so please feel free to customize them and have fun.
We also recommend attaching weights to the wheels to make the ride feel even closer to the real thing.
If you have any other questions or concerns, please contact us using the information below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
To prevent the vehicle from rolling over
There are two main ways to make a vehicle less likely to roll over.
1. Install the wheel weight set
2. Install metal upgrade parts
1. Install the wheel weight set
The easiest and most effective method is to install a set of wheel weights.
Rollover is prevented by making the parts closer to the road surface heavier and the parts further from the road surface (higher positions) lighter.
Of all the genuine WPL custom parts, wheel weights are likely to be the most effective.
At the same time, changing to soft tires helps to absorb road surface gaps to some extent, which seems to significantly reduce rollovers caused by sudden jolts.
*This product is for C14, C24, C24-1, C34, etc. (for 4x4). Please note that it is not compatible with D12.
2. Install metal upgrade parts
The next most effective way is to incorporate metal upgrade parts.
This is intended for advanced riders, but by incorporating wheel weights you can achieve a more stable ride.
RAYWOOD also has a video on assembling the metal upgrade parts on YouTube!
1) Propeller shaft assembly
②Axle assembly and adjustment
③ Installation of metal upgrade parts for C14 and C24
④Installation of C34 metal upgrade parts
⑤Installation of D12 rear axle metal upgrade parts
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Frequently asked questions and inquiries
I am missing an accessory/I want to know the list of accessories
The items included with the D12, C14, C24, C24-1, and C34 are as follows. (The battery has been removed from the photo.)
D12
C14
C24
C24-1
C34
If you notice anything missing, please contact customer support.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The front wheels are crooked
Fine adjustments can be made using the trim adjustment dial on the transmitter (radio control).
In addition, the D12 has the characteristic of being rear-wheel drive.
The front wheels steer the car, while the rear wheels transmit the driving force.
Due to its characteristics, the front wheels are intentionally set in a V-shape, known as "toe-out," to ensure the vehicle moves as stably and smoothly as possible in the direction of travel.
If you notice any significant distortion or bending that interferes with driving, please contact us using the inquiry form and attach a video that clearly shows the distortion or bending.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I want to know how to store the battery.
Regarding battery storage and maintenance, even if you will not be using the battery for a long period of time, please charge and discharge it regularly.
When storing the battery for a long period of time, it is best to have the battery charge at around 50-60%. Please do not leave the battery fully charged or completely discharged for a long period of time.
*The battery may deteriorate significantly.
*To prevent deterioration, please use it about once a month.
Please rest assured that WPL JAPAN products are designed with overcharge protection in place for batteries and charging devices in accordance with PSE standards.
*We have received inquiries from customers who have purchased parallel imported products, who may have thought that we (WPL JAPAN) are the manufacturer of WPL products, saying that they "heard a popping sound" or "there was a burning smell coming from the battery area." However, we have no involvement with parallel imported products (regular WPL products) and they are outside of our jurisdiction. We apologize for the inconvenience, but we ask that you contact the store that sells the imported products.
If you have any other questions, please feel free to contact us using the form below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
What is the speed per hour?
The D12 is about 12km/h.
The C series (C14, C24, C24-1, C34) has a maximum speed of approximately 7km/h.
Please take a look at the videos below, which introduce both the D12 and C series.
If you have any other questions, please contact us using the information below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I want to know how long it takes to fully charge
It takes about 4 hours to fully charge.
Charging is possible from a PC, but since the power supply is unstable, there is a risk of shortening the battery life.
You can also charge the device using a 1.0A plug sold at 100 yen shops, but please note that this will take longer.
The recommended specification is up to 5V 2.0A.
Please note that if you charge using a plug with a current of 2.0A or more, it may damage the charging cable, battery, or in the worst case scenario, even the circuit board.
It can only run for about 5 minutes from a fully charged state, and it takes about 10 minutes to fully charge from a completely discharged state, etc.
If your battery life is extremely short or if it charges quickly, the battery may be faulty.
I want to know the driving time
The running time is about 30 minutes. It takes about 4 hours to fully charge.
Charging is possible from a PC, but since the power supply is unstable, there is a risk of shortening the battery life.
You can also charge the device using a 1A plug sold at 100 yen shops, but please note that this will take longer.
Regarding the charging environment, the recommended standard is up to 5V 2.0A.
Please note that if you charge using a plug with a current of 2.0A or more, it may damage the charging cable, battery, or in the worst case scenario, even the circuit board.
It can only run for about 5 minutes from a fully charged state, and it takes about 10 minutes to fully charge from a completely discharged state, etc.
If your battery life is extremely short or if it charges quickly, the battery may be faulty.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I want to know the difference between parallel imports
Our products (WPL JAPAN) have been independently certified with the Technical Conformity Mark and have passed the Radio Law. Similarly, the battery has also been certified with the PSE Mark. Parallel imports do not have the Technical Conformity Mark, so they are in violation of the Radio Law and cannot be used in Japan.
As we are not involved in the manufacture or sale of parallel imports, customer support is also outside the scope of our coverage. If the product you have is not "WPL JAPAN" but a parallel import, please be sure to contact the retailer from which you purchased it.
*We do wholesale some radio control shops directly, but generally all WPL products sold outside our direct stores are parallel imports.
*WPL JAPAN products are designed with overcharge protection for batteries and charging devices based on the PSE mark. In addition, charging is automatically stopped after a full charge, so you can rest assured.
D12, receiver and ESC, cable connection
Please see the image below for the cable connection location on the D12 board.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
D42, receiver and ESC, cable connection
Please see the image below for the cable connection location on the D42 board.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
troubleshooting
I can't steer, move forward or backward even when I operate the transmitter.
If you are unable to steer or move forward or backward, there are several possible causes. Please try the following.
Is pairing possible?
First, check whether pairing is possible. If pairing is not possible, there may be a problem with the transmitter (radio control) or the receiving board.
- Check whether the vehicle's power is turned on (headlights flashing)
- Check whether the transmitter is turned on (the light will flash)
- Turn the vehicle's power OFF then ON, then turn on the transmitter to see if pairing is possible → Both the headlights and transmitter will be lit.
If you are unable to pair, or if you have paired but are unable to move forward, backward or steer, and the motor is not working at all, please contact us using the inquiry form.
The vehicle can be steered (turned left and right), but cannot move forward or backward.
This may be due to a malfunction or failure of the motor gearbox or a faulty throttle in the transmitter.
For more information, please see our FAQ page.
I can move forward and backward, but I can't steer (turn the steering wheel).
This seems to be a servo failure or malfunction.
For more details, please see our FAQ page.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The propeller shaft (motor) is spinning freely.
The propeller shaft may not be secured.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Unable to move forward or backward
Motor failure, gear damage in the gearbox,
There may be a problem with the transmitter throttle.
-The motor runs when the transmitter throttle trigger is operated.
- If the vehicle is flipped upside down and there is no load, it will move forward and backward.
If the above applies, the gear and shaft inside the gearbox may not be sufficiently crimped.
You can also repair it yourself (first aid). Please see our YouTube channel for more information.
If the above does not apply and the motor does not work at all, there may be a problem with the motor, transmitter, or receiving board.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Unable to steer left or right
I think it's a servo problem.
If this issue occurs during the first run, it may be a manufacturing defect, so please contact us using the inquiry form.
If the servo was working properly upon arrival, it is possible that it was damaged by driving under heavy load.
If the product becomes damaged after several uses, please purchase a new one from the link below.
Please see the video below for instructions on how to replace the servo.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Headlights do not turn on even when the vehicle is turned on/Transmitter light keeps flashing
[Example]
・Suddenly it stopped moving. ・Just before that, it went over a bump in the road.
[Cause and Response]
Even when I operate the switch on the vehicle, the headlights do not appear to turn on, and the transmitter light remains flashing, so it is possible that the vehicle is not receiving power for some reason.
[Reconfirmation]
① Is the driving battery fully charged? ② When installing the driving battery, is the connector securely connected? - Connect it firmly until the tabs snap into place. ③ First, turn on the transmitter power and check that the light is flashing. ④ Turn on the vehicle power and check that the headlights of the transmitter and vehicle change from flashing to lit.
→ After checking the above, the issue was resolved.
If the problem is not resolved:
Please contact customer support.
If you could send us a video of the situation, we would be able to assist you more smoothly.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The power turns off immediately after being turned on
The vehicle battery is not charging properly and the remaining charge is insufficient.
Possible causes include insufficient battery charge in the transmitter or a faulty circuit board.
■When charging the battery, the USB charger lamp may light up in a pattern other than the one listed below.
The battery or the charger, or both, may be faulty.
Charging: Green light/flashing, red light/on Charging: Green light/on, red light/on (or only charging: green light/on)
■The pairing suddenly ends.
The transmitter battery may not have enough power remaining.
If it is rechargeable, make sure it is fully charged, if not try replacing it with a new battery.
If the above two points do not apply, there may be some kind of problem with the board.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The tire shaft broke
If the tire shaft breaks due to dropping or hitting the unit,
If you purchase and replace the relevant parts, you will be able to drive again.
The D12 is sold as individual parts, so please purchase them from the link below.
For other products that we do not handle, please contact us using the inquiry form.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The green charging light keeps flashing
Normally, charging is completed in about 4 hours,
If it takes too long to fully charge or the fully charged light never comes on,
The battery or charging cable may be faulty.
*Please be sure to charge with the included charger.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I heard a popping noise and smelled a burning smell while charging
We are very sorry, but this is a parallel import product sold by another store that has no connection with our company.
Only products purchased from our company can be returned, refunded, or exchanged for a new product.
The products we sell have been certified with the Technical Conformity Mark and the batteries are PSE certified and have overcharge protection settings.
Parallel imports are not covered by our warranty.
For detailed information on the inspection status, we ask that you contact the retailer of the imported product directly.
If you find any damage or defects in a product purchased from the official RAYWOOD website (official website, Amazon, Rakuten Ichiba, Yahoo! Shopping, aupay), please contact us using the information below.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
[Caution] Regarding handling of transmitters
The transmitter (radio control unit) is a precision instrument and is vulnerable to water and shocks.
If the internal wiring falls off due to impact such as dropping, it may come into contact with other wiring, causing a short circuit and generating heat, as shown in the image.
Please be extremely careful when handling.
※Please do not disassemble the product.
If you find that the transmitter is overheating after receiving the product, please contact us using the inquiry form below and we will assist you.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
troubleshooting
Regarding sales of metal parts and custom parts
Currently available parts can be purchased from the links below.
Other parts will be released in due course.
Detailed information regarding the start of sales will be announced on various social media platforms.
Please take a look if you are interested.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
I damaged a part/I need a spare part
Parts are available for purchase from the link below. Spare parts are being added one after another.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
The windshield was broken.
For the D12, C14, and C24, we sell spare parts.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
D12: The hub is damaged/I can no longer mount the tire.
[Example]
While modifying a D12 to replace its tires, the screw hole in the hub widened during installation, making it impossible to install the tire.
[correspondence]
Please purchase a D12 front hub and replace it.
The parts can be purchased from the following:
If you need other parts or are not sure which parts to purchase, please feel free to contact us.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Tips
To prevent the vehicle from rolling over
There are two main ways to make a vehicle less likely to roll over.
1. Install the wheel weight set
2. Install metal upgrade parts
1. Install the wheel weight set
The easiest and most effective method is to install a set of wheel weights.
Rollover is prevented by making the parts closer to the road surface heavier and the parts further from the road surface (higher positions) lighter.
Of all the genuine WPL custom parts, wheel weights are likely to be the most effective.
At the same time, changing to soft tires helps to absorb road surface gaps to some extent, which seems to significantly reduce rollovers caused by sudden jolts.
*This product is for C14, C24, C24-1, C34, etc. (for 4x4). Please note that it is not compatible with D12.
2. Install metal upgrade parts
The next most effective way is to incorporate metal upgrade parts.
This is intended for advanced riders, but by incorporating wheel weights you can achieve a more stable ride.
RAYWOOD also has a video on assembling the metal upgrade parts on YouTube!
1) Propeller shaft assembly
②Axle assembly and adjustment
③ Installation of metal upgrade parts for C14 and C24
④Installation of C34 metal upgrade parts
⑤Installation of D12 rear axle metal upgrade parts
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
Mini driver
Trends of DULO RC maintenance drivers
DULO RC maintenance driver, mini driver becomes a magnetic driver.
Therefore, they tend to rust more easily than regular screwdrivers.
To prevent rust, apply oil,
Please carry out maintenance such as wiping off dirt in a timely manner.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
MR-01
Processing range possible with DULO MR-01
The "DULO MR-01 Rechargeable Mini Router" is a mini router for general model making.
It can be used for simple processing of light metals,
It is not suitable for excessive cutting or any further uses.
Thank you for your understanding.
＜Caution＞
*We do not respond to inquiries by phone.
* Reception hours are from 8:30am to 4pm on weekdays, and closed on Saturdays, Sundays, and holidays.
If you contact us outside of business hours or on weekends or holidays, we will respond on the next business day.
