LeeBoy 695 Operation, Service And Parts Manual page 148

Maintenance
SYMPTOM
Machine will not move
forward or reverse.
Machine jumps when
forward/neutral/reverse
(FNR) lever engaged.
Machine creeps.
Traction pump responds
slowly.
Drive selector levers or pedal
do not move freely.
Excessive noise in drive
system.
Hydraulic drive system has
no power.
Two-speed won't shift.
5-52
Table 5-3. Troubleshooting Chart (Cont.)
CAUSE
Low hydraulic oil level.
Park brake engaged.
Forward/neutral/reverse (FNR) lever
linkage broken.
Traction pump malfunctions.
Pump destroke valve on or stuck.
Park brake sticking.
Traction pump malfunction.
Transfer case malfunction.
Differential (final drive) malfunction.
Forward/neutral/reverse (FNR) lever
out of adjustment.
Low hydraulic oil level.
Traction pump boost pump malfunction.
Traction pump malfunction.
Cold oil.
Bent, damaged, corroded linkage.
Worn transfer case.
Worn traction pump.
Worn differential (final drive).
Park brake dragging.
Defeat coil on drive motor not receiving
signal correctly.
Two-speed valve not receiving signal.
Park brake not set.
REMEDY
Check and fill reservoir. Release park
brake. Repair or replace linkage. See
authorized dealer.
Repair park brake.
See authorized dealer.
See authorized dealer.
See authorized dealer.
Adjust forward/neutral/reverse (FNR)
pedal linkage.
Check and fill reservoir.
See authorized dealer.
See authorized dealer.
Allow machine to warm completely.
Clean, straighten and adjust linkage.
See authorized dealer.
See authorized dealer.
See authorized dealer.
Check park brake operation.
Check all switches and wiring.
Max coil should have power when:
• Reverse in high gear, auto/work
switch either position.
• Forward in low gear with work/auto
switch in WORK position.
• Forward in high gear with work/auto
switch in WORK position.
Defeat coil should have power when:
• Reverse in low gear.
• Reverse in high gear.
Check all switches and wiring.
Set part brake.
LeeBoy Model 695 Motor Grader