Lubrication and Service - Section 40 7/11 OM4056
Page 40-10
250 HOUR LUBRICATION AND MAINTENANCE CHECKS (Cont.)
TASK COMMENTS CHECKED INITIALS
6. STEERING LINKAGE - Check the torque on the pin
retaining nuts for the steering cylinders and tie rods.
Tighten to 1 017 N•m (750 ft lb).
7. HYDRAULIC PUMP DRIVESHAFT & U-JOINTS -
Add one or two applications of grease to each grease
fitting. Make sure that each bearing of the cross and
bearing assembly is receiving grease. Replace
bearings if any wear is detected. (Lube Key “D”)
8. REAR WHEEL MOUNTING - Use a flashlight and a
mirror on a long rod to inspect all inner and outer
wheel mounting nuts and studs. Check for loose,
damaged or missing hardware.
If wheel mounting nuts and studs must be tightened
or replaced, the outer wheel must be removed for
access. Refer to Section G in the shop manual for the
procedures.
9. REAR AXLE HOUSING - Check the rear axle housing
for oil leaks by removing the two drain plugs on the
bottom of the axle housing. If oil is present, the cause
of the leak must be found and corrected before
operating the truck.
10. FRONT WHEEL HUB - Remove the magnetic plugs
from the front wheel hub covers and check for debris.
Clean the plugs and perform any necessary repairs.
11. MOTORIZED WHEELS -
1. Check for the correct oil level. Rotate the wheel
so that the magnetic plug is at the 6 o’clock
position and remove the plug. The oil level
should be even with the bottom of the plug
opening.
2. Inspect the magnetic plugs for ferrous materials.
Service the wheel motor as necessary.
12. WHEEL MOTOR OIL SAMPLING - Refer to Section
G5, Wheel Motor, in the shop manual for oil sampling
information.
13. AUTOMATIC LUBRICATION SYSTEM - Perform the
250 hour checks as outlined in Automatic Lubrication
System, Section 42, in this manual.
14. DUMP BODY PADS - Check the pads, shims and
mounting hardware for wear and proper tightening.
15. BATTERIES - Check the electrolyte level and add
water if necessary.
16. BODY-UP AND HOIST LIMIT SWITCHES - Check
the operation of the switches. Clean any dirt from the
sensing areas and inspect the wiring for damage.
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