freightliner M2 Plus Maintenance Manual page 79

Suspension
If the equalizer beam ends appear lower, use a jack
to raise each beam end, then check for movement of
the inner metal of the rubber end bushing. See
4. Movement cannot be corrected by tightening the
fastener, because parts could be damaged. If there is
movement, replace the rubber end bushings and all
connecting parts.
05/27/93
1. Beam Hanger
2. Equalizer Beam
Fig. 4, Raising the Beam End
After repairs to the suspension, check the fastener
torque after the vehicle has been in service for 2500
miles (4000 km). Tighten the adapter-type beam end
connection nut 210 to 240 lbf·ft (285 to 325 N·m).
See Fig. 5. Do not overtighten.
WARNING
Insufficient beam end fastener torque could cause
the beam to separate from the axle. This will
cause loss of vehicle control resulting in property
damage, serious personal injury or death.
Hendrickson Leaf Spring
Assembly Inspection
1. Inspect the spring hangers for wear of the spring
pin holes, cams, and the spring hanger legs. See
Fig. 6.
2. If equipped with the RTE series, the gap
between the rear (no. 2) spring hanger and the
top spring leaf should measure at least 3/8 inch
(9.5 mm) in an unloaded condition.
Business Class M2 Plus Maintenance Manual, 02/10/2023
Fig.
1
2
3
f320039a
3. Jack
1
2
3
05/27/93
NOTE: Do not use the three-piece adapter without the
intermediate tube.
1. Nut
2. Adapter
3. Intermediate Tube
Fig. 5, Three-Piece Adapter-Type Beam End Connection
1
2
05/27/93
A. Minimum gap of 3/8 inch (9.5 mm).
1. Forward (no. 1) Spring Hanger
2. Spring Eye Pin
3. Rear (no. 2) Spring Hanger
4. Rear (no. 3) Extension
Fig. 6, Unloaded RTE Spring Suspension
If the measurement is less than 3/8 inch (9.5
mm), install new rear (no. 3) extension hangers.
Lubricate the bolt threads with SAE 20 oil.
Tighten the 1/2–13 locknuts with hardened
washers 85 lbf·ft (115 N·m).
32
5
2
4
f320110a
4. Inner Metal of Beam
End Bushing
5. Beam Hanger
4
A
3
f320112a
32/5