72–01 Weatherstrip, Door
Latch, and Door Hinge
Lubricating
Lightly coat door weatherstrips with a lubricant that is
safe (as recommended by the lubricant manufac-
turer) on rubber.
Apply a few drops of light engine oil, or spray a light
coating of silicone lubricant (such as WD–40
®
or an
equivalent) on the door latch mechanism. This will
help reduce noise and wear. Wipe off any excess oil
or silicone lubricant.
Lubricate door hinges by spraying them with a light
coating of silicone lubricant (such as WD–40 or an
equivalent).
Always lubricate new cab-door hinges at installation.
Doors 72
Business Class Trucks Maintenance Manual, January 1998 72/1
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