spring eye and spring are connected to the
spring hanger through the wrapper eye of the
second leaf. In this case, the main leaf or the
complete spring should be replaced immediately.
Neway Suspension
WARNING
Inspect the components and check their operation
as described below. Failure to perform these in-
spections and checks could result in separation of
worn suspension components and loss of vehicle
control, possibly causing personal injury or death,
or property damage.
1. Park the vehicle on a level surface. Apply the
parking brakes and chock the tires.
2. Inspect the rear suspension for any signs of
damage, loose components, wear, or cracks. Re-
place any damaged components to prevent fail-
ure or equipment breakdown.
3. Inspect all bolts and nuts at the pivot and axle
connections to ensure they are properly torqued.
Check all other nuts and bolts for proper torque.
See
Group 00 of this manual for proper torque
specifications.
4. Check the air pressure gauge to confirm that
there is in excess of 65 psi (448 kPa) in the air
system, and inspect the air springs for sufficient
and equal firmness.
NOTE: Height control valves control all air
springs. Check for air leaks by applying a soapy
solution, then checking for bubbles, at all air
connections and fittings.
5. Check the riding height of the air suspension by
measuring the distance from the centerline of the
rear axle (see
Fig. 14) to the bottom of the frame
rail. If the riding height is incorrect, adjust the air
suspension.
Reyco
Check all suspension fasteners for the proper torque
values. See
Group 00 of this manual for proper bolt
torque specifications. Inspect the frame for elongated
holes at the suspension mounting points, and have
the frame repaired as needed. If elongated holes are
found on the frame, check the suspension alignment.
32–02 Suspension Lubrication
Front Suspension
Wipe all dirt away from the grease fittings (if
equipped) on the spring-eye bushings. Apply multi-
purpose chassis grease with a pressurized grease
gun until the old grease is forced out.
NOTE: Service Schedule IV vehicles equipped
with a 12,000 lb (5452 kg) front axle are fitted
with maintenance-free rubber bushings, and do
not require lubrication.
Rear Suspension
Chalmers
No lubrication is required on the Chalmers rear
suspension.
Freightliner Spring
Single Axle
No lubrication is required on Freightliner single-axle
rear suspensions.
Tandem Axle
Lubricate the equalizer cap-and-tube assembly bush-
ings by applying multipurpose chassis grease at the
grease fitting until the old grease is forced out from
the cap-and-tube assembly. See
Fig. 15.
Hendrickson
The Hendrickson RS Series suspension does not
require lubrication.
For Hendrickson RT2 and RTE2 Series, lubricate the
bronze, ball-indented bushings in the spring eye, as
follows:
1. Park the vehicle on a level surface, apply the
parking brakes, and chock the front tires.
2. Raise the rear of the vehicle until the rear wheels
are suspended in the air, then support the ve-
hicle with safety stands. This relieves the load on
the bushings and pins to allow the proper flow of
lubricant around them.
3. Use a multipurpose chassis grease and lubricate
the bronze, ball-indented bushings in the spring
eyes at the grease fitting. See
Fig. 16. Continue
Suspension32
Century Class Trucks Maintenance Manual, January 201632/8
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