Locke TRM-3083 - Manual (Page 17)

HYDRAULIC LIFT TROUBLESHOOTING
UNITS WILL NOT LOWER
1. Transport safety chain not hooked and Unhook and stow chain.
stowed.
2.
Quick-disconnects reversed. Reverse couplings.
3. Faulty tractor hydraulic supply. See tractor manual.
4. Check valve pilot not operating.
Replace check valve.
UNITS WILL NOT RAISE
1.Quick-disconnects reversed. Reverse couplings.
2. Insufficient hydraulic pressure.
See tractor manual.
3. Leaking cylinder.
Replace cylinder seals. Replace
cylinder if necessary.
REAR UNITS WILL NOT CLIMB ONTO SNUBBERS
1. Insufficient hydraulic pressure. See tractor manual.
2. Mechanical interference.
Check to see that no moving parts,
chains, etc. are trapped or locked.
Make sure lift chains are properly
adjusted.
UNITS WILL NOT STAY IN RAISED POSITION
1. Leakage from hose between check valve Tighten fitting. Replace fitting or
and cylinder. hose if necessary.
2. Leaking cylinder.
Replace cylinder seals. Replace
cylinder if necessary.
3. Leaking check valve.
Replace check valve.
15