OM4012.1 03/01 Maintenance - Section 4 Lubrication & Service Page 4-9 2. HYDRAULIC PUMP DRIVESHAFT & U-JOINTS - Add one or two applications of grease to each grease fitting. Check that each bearing of the Cross & Bearing assembly is receiving grease. Lube Key “D”. 3. COOLING SYSTEM - Check cooling system for proper coolant mixture. Add water mixture as re- quired. 4. REAR WHEEL MOUNTING - Using a mirror on a long rod and a flashlight, inspect where possible, all inner and outer wheel mounting nuts/studs for any evidence of looseness, damage, or missing hardware. If wheel mounting nuts/studs must be secured or replaced, the outer wheel must be removed for access.
Refer to the Shop manual, Section “G”, for these procedures. 5. REAR AXLE HOUSING - Check the rear axle hous- ing for fluid leaks by removing the 2 (two) drain plugs on the bottom of the axle housing. If fluid is present, the cause must be found and corrected before releasing truck to operation. 6. STEERING LINKAGE - Check torque on pin retain- ing nuts (steering linkage), 525 ft.lbs. (712 N.m) torque. Check torque on tie rod retaining cap- screws, 310 ft.lbs. (420 N.m) torque. 7. MAGNETIC PLUG - Remove magnetic plugs from front hub covers and inspect for debris. Clean the plugs and perform any necessary repairs.
* These checks are required only after the first 250 hours of operation (such as: the commissioning of a new truck, or after a new or rebuilt component installation), check: *8. HYDRAULIC SYSTEM FILTERS - Replace filter elements only after the initial 250 hours of operation; then at each 500 hours of operation thereafter. Check oil level. Add oil as necessary. Lube Key “B”. *9. MOTORIZED WHEEL GEAR CASE - Refer to the G.E. planned maintenance manual and specific motorized wheel shop manual. COMMENTS √’d INITIALS