PREVENTIVE MAINTENANCE FRONT AXLE AND SUSPENSION
Regional Haul
(R05/10) Y53-6033 – 243 –
Axle Lubrication
Change bearing lubrication when seals are replaced, or
brakes are relined. See Table 1, “Recommended Mainte-
nance Intervals,” Page 150.
Thoroughly clean hubs and bearings with solvent and a
stiff bristle brush, then dry and inspect components for
wear or damage. Re-lubricate with approved axle lubri-
cant.
Kingpin Lubrication
Lubricate with approved lubricant. Lubricate knuckle
thrust bearings, knuckle pins, and tie rod ends. See Table
1, “Recommended Maintenance Intervals,” Page 150.
Lack of lubrication causes premature wear and hard
steering. Lubrication schedule may be shortened if neces-
sary.
Suspension Lubrication
Each spring anchor pin has a grease fitting. Pressure
lubricate spring pins according to Table 1, “Recom-
mended Maintenance Intervals,” Page 150, using EP
chassis lube with 12-Hydroxy Lithium Stearate Base
NLGI-2 with 3% molybdenum additive (e.g. Mobil-grease
EP or equal).
At regular intervals, the spring leaves may be lubricated
with a rust-inhibiting oil applied with a spray gun or brush.
Lubricate all spring pins until grease flows out of both
ends of the bushing. Look for signs of rust or water in the
flushed grease. If a pin will not accept grease, it should be
removed, cleaned, and inspected.
Front Axle
KINGPIN (TOP)
KINGPIN
(BOTTOM)
00445
