ILP 25/33 Owner’s Manual
Rev.1.4 27
8.3 Liftgate does not Lift Up
1. Visually check the valves at cylinders for mechanical damage such as bent or broken valves.
2. Jump female end of cable #2 to small small positive connector on motor solenoid
Do NOT stay between platform and truck body, gate will raise up
3. Gate is raising up – Check toggle switch harness and gray wire haness to switch for damaged spots.
4. If gate does not raise up:
a. Check the motor solenoid for proper function and listen for clicking.
- No clicking = Motor solenoid or thermo switch at motor is bad.
- Clicking = Check for voltage on both big positive studs to ground. If voltage is
present the solenoid is ok. If not, the solenoid is not connecting internally and is bad.
b. Motor Solenoid is ok:
- Check for power on large positive motor stud.
- If no power is present, either the motor or the brushes are bad. If there is no power
at the motor stud, check the connection to the solenoid.
If gate is still not working, take truck/trailer and gate to an authorized repair station
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