14
Quad Aer Trouble Shoong
Turn unit o before any troubleshoong
Tines won’t go up/down
1. Turn pressure knob to the right.
2. Check UP/TRANSPORT/DOWN switch posion.
3. Set nes to default down.
4. With the unit o, check the aux belt.
5. With the unit o, check the gear pump and engine
pulley.
Ensure key stock is present in the pulley
1. Check relay under the ignion key. The relay should
click when the foot pedal is depressed.
2. Ensure wiring harness has a good connecon with
the UP/TRANSPORT/DOWN switch and electronic
valve body.
3. Pressure check gear pump should be 800 PSI Re-
place if faulty.
4. Replace li cylinder.
Foot switch doesn’t work
1. Check UP/TRANSPORT/DOWN switch posion.
2. Check plug connecon at the footswitch. Remove
any debris if present.
3. Check relay under the ignion key. The relay should
click when the foot pedal is depressed.
4. Check both fuses by the engine.
5. Replace the footswitch or the UP/TRANSPORT/
DOWN switch.
Tines bending or breaking
1. Some nes breaking are common in the ordinary
course of operaon.
2. Eliminate ght turns with the nes in the ground.