TL 1128 (TOP HOLES)
Issued August 2016
Revision No: 006
Printed in U.S.A.
Copyright 2016, Bayne Premium Lift Systems
Troubleshooting Chart
28
TROUBLESHOOTING CHART
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Lifter operation very
erratic.
1. Air trapped in system.
1. Bleed all air from lifter hydraulic system.
2. Low oil level.
2. Add oil to system.
Cart lifter will not pick up
carts.
1. Cart overweight.
1. Reduce loaded weight of cart.
2. Lifter system hydraulic
pressure too low.
2. Check and adjust pressure relief on hand valve and lifter
circuit relief in diverter valve.
3. Truck system hydraulic
pressure too low.
3. Check and adjust pressure on truck system relief and
full system relief in diverter valve.
4. Faulty hand valve.
4. Replace hand valve.
Lifter operates extremely
slow.
1. Engine idle too low.
1. Adjust engine idle.
2. Faulty hand valve.
2. Replace hand valve.
3. Faulty truck hydraulic
pump.
3. Consult truck maintenance manual.
4. Trash in diverter valve.
4. Remove orifice from diverter valve body and clean
thoroughly.
5. Orifice in diverter valve
is too small.
5. Remove orifice from diverter valve body and increase
diameter.
Lifter operates under
recommended cycle time.
1. Engine idle too high.
1. Adjust engine idle.
2. Orifice in diverter valve
is too large.
2. Remove orifice from diverter valve body and replace
with a smaller diameter.
Hydraulic components
down stream of diverter
valve not operating or
operating extremely slow.
1. Truck system hydraulic
pressure too low.
1. Check and adjust pressure on truck system relief and
full system relief in diverter valve.
2. Faulty full system relief
valve cartridge in
diverter valve.
2. Replace full system relief valve cartridge in diverter
valve.
3. Faulty truck system relief
valve.
3. Consult truck maintenance manual.
4. System flow is being
restricted.
4. Ensure there is proper flow throughout the hydraulic
system. Remove any restrictions.
5. Trash in flow regulator
cartridge.
5. Remove flow regulator cartridge from diverter valve body
and clean thoroughly.
Diverter valve leaking oil
around cartridges.
1. Worn or damaged seals
on cartridge valves.
1. Install diverter valve seal kit.
Hand valve lever sticks in
up or down position.
1. Worn or broken spring
center device.
1. Install spring center kit.
2. Trash in or around hand
valve shift spool.
2. Disassemble and clean spool and housing.
3. Pressure ( IN ) and tank
( OUT ) ports are
hooked up backwards.
3. Make sure all hoses are plumbed according to the
hydraulic schematic.
Hand valve leaking oil
around shift spool.
1. Worn or damaged seals. 1. Install hand valve seal kit.
2. Worn spool.
2. Replace hand valve.
Actuator leaking oil
around pinion shaft.
1. Worn pinion shaft seals.
1. Install pinion seal kit.
Actuator leaking oil
around piston tubes or
rack cap.
1. Worn seals in actuator.
1. Install actuator seal kit.
Lower hook connecting
1. Saddle to hook
1. Adjust saddle to hook dimension as described in the