ERIODIC MAINTENANCE
P
2 6851096
RC4283.eps
WARNING: After completing any service
procedure, always test the attachment
through five complete cycles. First test
empty, then test with load to make sure
attachment operates correctly before
returning it to the job.
2.1 100-Hour Maintenance
Every time the lift truck is serviced or every 100 hours
of truck operation, whichever comes first, complete
the following maintenance procedure:
• Check for loose or missing bolts, worn or damaged
supply hoses and hydraulic leaks.
• Check decals and nameplate for legibility.
• Inspect the cylinder rod anchor joint for lubrication
and correct hold.
NOTE: Anchor joint operates with a loose
clearance. Lubricate with wheel bearing grease.
• Check for equal arm movement.
• Check the load holding hydraulic system for
proper function. Cascade Clamp Force Indicators
300G-CFI-812C and 300G-CFI-824C are available
for this test.
2.2 500-Hour Maintenance
After each 500 hours of truck operation, in addition
to the 100-hour maintenance, perform the following
procedures:
• Check the lower mounting hook engagement
clearance with the truck carriage bar:
Quick-Change Hooks – 3/32 in. (2.5 mm) min.
3/16 in. (5.0 mm) max.
Bolt-On Hooks – Tight against lower carriage
bar.
If adjustment is necessary, refer to Section 4.1,
Step 3. Tighten the lower hook capscrews to a
torque of:
CL III – 120 ft.-lbs. (165 Nm)
CL IV – 320 ft.-lbs. (435 Nm)
• Tighten the upper hook capscrews to a torque of
320 ft.-lbs. (435 Nm).
• Inspect all load-bearing structural welds on arms,
frame and cylinder anchor areas for visual cracks.
Replace components as required.
• Inspect contact pads, pivot pins, wear tiles and
arm tips for wear and damage. Replace or repair,
as needed.
2.3 1000-Hour Maintenance
After each 1000 hours to lift truck operation, in
addition to the 100 and 500-hour maintenance
procedures, perform the following procedures.
• Inspect the arm bearings for wear. If any bearing
is worn to less than 0.04 in. (1.0 mm) thickness,
replace all bearings.
Arm Bearings
Cylinder Anchor Joint
Hook Capscrews
Lower Hook Capscrews
Front View
Back (Driver's) View
2.4 4000-Hour Maintenance
After each 4000 hours of truck operation, in addition to
the 100, 500 and 2000-hour maintenance, perform the
following procedures:
• Due to normal mechanical wear and component
service life, cylinder seals should be replaced to
maintain performance and safe operation.
