operators_manual

Table Of Contents
Every 30,000 mi / 48,000 km
11
Front Suspension - Spring Pins
Lubricate with approved grease. (Refer to Front Axle and Suspension on page 273 for maintenance instructions.)
Drive Axle - Linehaul (PACCAR) - Axle Assembly
Check oil level and inspect for leaks.
Visually inspect for damage or leaks.
Drive Axle - Linehaul (PACCAR) - Breather
Check the operation. If the cap doesn't rotate freely, replace.
Drive Axle - Vocational (PACCAR) - Axle Assembly
Drain and replace MINERAL BASE lubricant. Drive Axle (Meritor Line Haul / ON HIGHWAY) - Axle Housing
Check the "cold" fill level at the differential carrier plug for a pinion angle of less than 7 degrees, or at the axle bowl plug for a
pinion angle of greater than 7 degrees. Tighten the plug to 35-50 lb-ft (47-68 N·m.) (Refer to Drive Axle - Meritor on page
286 for maintenance instructions.)
Visually inspect for damage or leaks. (Refer to Drive Axle - Meritor on page 286 for maintenance instructions.)
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 286 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 241 for
maintenance instructions.)
11
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
210 Y53-6126-1A1 (01/21)
5