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 Trouble-shooting
Hook Type Sideshift Carriage
CORRECTIVE ACTION
PROBABLE CAUSE
PROBLEM
Bring hydraulic oil supply to proper
Carriage fails to
Insufficient hydraulic oil in supply
level.
move when control
tank.
lever is opened.
Repair or replace hydraulic pump.
Insufficient hydraulic oil pressure.
Remove obstruction.
Obstruction of flow in hydraulic
line.
Reduce load weight to that recommended
Over capacity load being handled.
for the carriage.
Insufficient lubrication.
Lubricate top segments and heel rollers.
Replace worn or damaged piston seals.
Hydraulic pressure bypassing side
shift cylinder piston packing.
Heel rollers fail
Lubricate all wear points.
Insufficient lubrication.
to turn.
Heel rollers fail
Remove pin from roller and clean.
to turn (con't.)
Lubricate and reassemble.
Flat surface worn on roller.
Replace roller assembly.
Bent or damaged truck carriage.
Straighten or replace truck carriage.
Side shift
Worn packing seals.
Replace cylinder packing.
cylinder leak.
Damaged or nicked chrome
Polish the rod until the surface is smooth;
finish on piston rod.
if damage is deep, replace rod.
Excessive
Worn bronze bearing segments.
Replace bronze bearing segments.
looseness of
side shift
Lower retaining hook loose or
Repair or replace the hook as indicated.
carriage on
Installation of new lower
damaged.
mounting hooks should be
truck carriage.
Positioned so there is 1/16
inch clearance between the
bottom of the fork bar. This
can be achieved by shims if
necessary.
Torque the hooks
to 65 ft. lbs.
5-197
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