SL20K Self-Steering Axle and Suspension System Installation Manual
23
Recommended Maintenance Intervals
Note: The following intervals are recommended minimums based on harsh service applications
(Logging, oil field, construction, heavy haul, residential refuse). Severe applications will require more
aggressive maintenance intervals.
COMPONENT
INITIAL
BREAK-IN
INTERVALS AFTER INITIAL
BREAK-IN
PROCEDURE
Wheel Bearings
5,000 mi.
8,000 mi. or every 2 months,
whichever comes first
Check for excessive endplay at wheel-end
(criteria is between 0.001” and 0.005”)
adjust as required; grease or oil
Tie Rod Ends
10,000 mi. or monthly,
whichever comes first
Verify torque, inspect for leaking or
damaged boots; grease
Kingpin Bushings
10,000 mi. or 6 months,
whichever comes first
Check for wear; grease
Pivot Connections
5,000 mi. or as needed,
whichever comes first
Verify torque
Stabilizer shocks
Verify torque, Check for oil leaks and
adequate return
Brake Camshafts
and adjusters
During normal chassis
lubrication or 3 months
whichever comes first.
Check for wear and excessive movement,
verify adjustments; grease. (ref.
manufacturer’s documentation for service
specifics)
Recommended Lubrication Specifications
COMPONENT
PROCEDURE
Kingpins
NLGI-1 or NLGI-2 grease
Tie Rod Ends
NLGI-1 or NLGI-2 grease
Wheel Bearings
NLGI-1 or NLGI-2 grease; GL-5 gear lubricant; NLGI-00 Semi-fluid grease.
(Reference original spec)
Brake Camshafts, anchor pins,
roller journals, and adjusters
NLGI-1 or NLGI-2 grease
