Operating instructions
Table Of Contents
- Mart Cart Model 3563 Technical Overview
- Table of Contents
- Major Parts Overview
- Battery/Circuit Breaker
- Charger
- Wire Harness
- PWM
- Control Box
- Hub Motor
- Potentiometer/PWM Relationship
- Potentiometer/PWM Relationship
- Calibrate PWM
- Calibrate PWM – Check Brake Leads
- Parts List
- Parts List – Steering Column
- Wiring Diagram
- Tools
- Safety Check
- Warranty
- Serial Number Label
- Mart Cart End Technical Overview
Return to Table of Contents
Calibrate PWM –
Check Brake Leads
When attempting to calibrate the PWM one might hear 3 short chirps. This indicates that the PWM
did not recognized a brake circuit. The PWM will still function but the brakes will not release causing
undesired performance from the motor. To resolve the brake issues, check the brake circuit from the
PWM to the motor by disconnecting the brake leads from the wire harness at the PWM and placing
an ohm meter on each lead. The meter should read approximately 20 ohms.
If you do not get a good reading, run the same test on brake leads from the motor to the 4-pin
connector.
If you do not get a good reading there, either the male
pins in the connector are bad or the brake circuit inside
the hub motor is bad…repair the pins or replace the
motor.
If you get a good reading, then the PWM-to-Motor wire
harness is bad or the pins in the 4-pin connector are not
making good contact…repair the pins or replace the
harness.
Brake Leads