Peterbilt Truck 367

WARNING!: Do not attempt to modify, alter, repair or disconnect any component of the air system.

WARNING!: Prior to the removal of any air system component, always block and hold the vehicle by a secure means other than the vehicle's own brakes.

WARNING!: After completing any repairs to the air system, always test for air leaks, and check the brakes for safe operation before putting the vehicle in service.

WARNING!: Never connect or disconnect a hose or line containing air pressure.

WARNING!: Never exceed recommended air pressure and always wear safety glasses when working with air pressure.

WARNING!: Never attempt to disassemble a component until you have read and understood recommended procedures.

WARNING!: Completely bypassing a Bendix® AD-IS air dryer will bypass the system’s pressure protection valves.

The operation of the vehicle’s braking system and many vehicle accessories depends upon the storage and application of a high-pressure air supply.

Check the kingpin lock and plate for wear and function

Check Front Suspension Spring Pins for proper function

Check Front Suspension U-bolts for general condition and tightness of the nuts

Tighten U-bolts after the first day or two of operation

Tighten U-bolt nuts to the specified torque value with the vehicle loaded to its normal gross weight

Check Drum Brakes Slack adjusters for push rod travel and control arm for cracks

Check Drum Brakes Slack adjusters for lubrication

Check Brake air system for air lines and fittings leaks

Checked lock guard operation using a commercial lock tester

Cleaned and oiled all moving parts

Lubricated the lock mechanism with a lithium-base grease

Greased all grease fittings (especially those which grease the top surface of the fifth wheel)

Every 60,000 miles or 6 months:

Removed fifth wheel from vehicle

Steam cleaned the fifth wheel and mounting brackets

Check frame fasteners for tightness

Inspect frame crossmembers and mounting brackets for cracks and loose fasteners

Check and adjust front axle (Meritor) total vehicle alignment as required

Inspect front axle (Meritor) steering knuckle spindles, thrust bearings, kingpins, drawkeys, tie rod ends, steering stops, and bushings for wear and damage and endplay

Visually check the steering gear and components

Check if the steering feels unbalanced from side-to-side while turning

Visually check the crosstube, draglink tube clamp, ball joints and steering U-joints, and steering wheel for excessive free-play

Check and adjust front axle (Dana) total vehicle alignment as required

Lubricate front axle (Dana) kingpin bushings, thrust bearings, and tie rod ball ends (ON HIGHWAY) with approved grease

Front Axle (Meritor) Drawkeys: Tighten nuts

Front Suspension Spring Pins: Lubricate with approved grease

Front Suspension U-bolts (OFF HIGHWAY): Check the general condition and the tightness of the nuts

Drum Brakes (All) Brake treadle valve: Clean the area around the treadle, boot, and mounting plate

Drum Brakes (All) Brake lining: Inspect; replace as required

Hub, Drum, and Hubcap Hubs (non-LMS): Check the bearing endplay and adjust as required

Hub, Drum, and Hubcap Hub seals (all): Check for leaks; replace as required

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

Main and auxiliary transmission Main and auxiliary transmission and transfer case: Check the drain plugs for tightness