operators_manual

Table Of Contents
Every 30,000 mi / 48,000 km
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Drive Axle (Meritor Line Haul / ON HIGHWAY) - Breather
Check the operation. If the cap doesn't rotate freely, replace. (Refer to Drive Axle - Meritor on page 234 for maintenance
instructions.)
Drum Brakes (All) - Brake Treadle Valve
Clean the area around the treadle, boot, and mounting plate. Check the pivot and mounting plate for integrity. Check the plunger
boot for cracks. Lubricate roller pin, pivot pin, and plunger (NLGI #2 grease.) (Refer to Drum Brake Inspection on page 192 for
maintenance instructions.)
Drum Brakes (All) - Brake Lining
Inspect: replace as required. (Refer to Drum Brake Inspection on page 192 for maintenance instructions.)
Hub, Drum, and Hubcap - Hubs (non-LMS)
Check the bearing endplay and adjust as required. (Refer to Wheels on page 242 for maintenance instructions.)
Hub, Drum, and Hubcap - Hub Seals (all)
Check for leaks: replace as required. (Refer to Wheels on page 242 for maintenance instructions.)
Hub, Drum, and Hubcap - Brake Drums
Inspect for visible cracks, heat checking, galling or scoring of the braking surface, and for severe corrosion on the outside
surface. Check for out-of-round or oversize condition [0.080 in. (2 mm) more than the original diameter]. Replace as required.
(Refer to Brake System on page 190 for maintenance instructions.)
Main and Auxiliary Transmission (including Eaton Automated or PACCAR Transmission) - Main and Auxiliary Transmission and
Transfer Case
Check the drain plugs for tightness. (Refer to Transmission Maintenance on page 243 for maintenance instructions.)
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Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
MAINTENANCE - Every 30,000 mi / 48,000 km
162 Y53-6096-1C1 (09/20)
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