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
2.
If equipped with the RTE series, the gap be-
tween 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.
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).
3.
Inspect the spring leaves for cracks, gouges,
wear, or abnormal bends. The main (no. 1) and
wrapper spring leaves (no. 2)—the top two
spring leaves—may be individually replaced. If
equipped with the RTE series suspension, the
first, second, and third spring leaves (the top
three spring leaves) may be individually re-
placed. If a spring leaf is damaged below these
numbers in a pack, replace the spring assembly.
In addition, replace both spring assemblies to
ensure even spring deflection.
f320039a
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1
2
3
1.
Beam Hanger
2.
Equalizer Beam
3.
Jack
Fig. 4, Raising the Beam End
f320110a
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1
2
2
3
4
5
NOTE: Do not use the three-piece adapter without the
intermediate tube.
1.
Nut
2.
Adapter
3.
Intermediate Tube
4.
Inner Metal of Beam
End Bushing
5.
Beam Hanger
Fig. 5, Three-Piece Adapter-Type Beam End Connection
f320112a
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1
2
3
4
A
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
Suspension
32
Business Class M2 Maintenance Manual, August 2015
32/5
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