WARNING
Replace all cracked or missing restrictor cans.
Failure to do so could lead to loss of vehicle con-
trol, which could result in property damage, seri-
ous personal injury, or death.
6.
Remove the jack stands, then lower the vehicle.
Check that the spring or driveline brake is ap-
plied, then remove the wheel chocks.
32–02 Suspension Lubricating
Freightliner Spring Front
Suspension
Wipe all dirt from the grease fittings at the forward
spring pin and the spring shackle pins. Then apply
multipurpose chassis grease with a pressure gun
until the old grease is forced out.
Freightliner Spring Rear
Suspension
Single Axle
Lubrication is not required on single-axle spring rear
suspensions.
Tandem Axle
CAUTION
If the equalizer cap and tube assembly is
equipped with a nonrelief grease fitting, excessive
lubrication can damage the bushings.
Lubricate the equalizer cap and tube assembly bush-
ings by applying multipurpose chassis grease at the
pressure relief grease fitting. See
. Lubricate
with a hand gun or pressure gun until grease is
forced out from the base of the pressure-relief fitting.
Hendrickson Equalizer Beam
End Bushings and Rubber
Center Bushings
No lubrication is required for the equalizer beam end
bushings or equalizer beam rubber center bushings.
Hendrickson Spring Eye Pins,
RT and RTE Series
Apply multipurpose chassis grease at the spring eye
pin grease fitting, located on the inboard side of the
spring eye pin, until clean grease appears at both
ends of the spring eye pin. See
Freightliner TufTrac
The TufTrac suspension is maintenance-free and de-
signed so that lubrication is not required. There are
no provisions for lubrication, and attempting to lubri-
cate the suspension could shorten component life.
32–03 Suspension U-Bolt
Torque Checking
Check the U-bolt torque of both the front and rear
axles where applicable.
CAUTION
Failure to retorque the U-bolt nuts could result in
spring breakage and abnormal tire wear.
1.
Park the vehicle on a flat surface and apply the
parking brakes. Chock the tires to prevent the
vehicle from moving.
2.
Check the U-bolt torque in a diagonal pattern.
Set a click-type torque wrench to the highest
torque value for the fastener being checked. See
320020a
05/27/93
1
1
A
A. Lubricate here.
1.
Cap and Tube Assembly Bushing
Fig. 8, Equalizer Assembly Lubrication
Suspension
32
Business Class M2 Maintenance Manual, August 2015
32/7
Property of American Airlines
