TM-5-3805-254-14-P-2
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)
JUNE 1980
TM-5-3805-254-14-P-2 - Page 621 of 894
TRUCK SERVICE MANUAL
SPRINGS
LUBRICATION
All oscillating parts with the exception of spring pins
and optional bronze center bushings are rubber bushed.
Since rubber bushings require no lubrication, lubrication
points have been reduced to a minimum.
Those
suspensions equipped with spring pins and/or bronze
bushings should be lubricated at the fittings provided with
viscous chassis lubricant every 1000 miles or at the time
of regular chassis lubrication.
DISASSEMBLY
Except for different suspension (leaf springs or
rubber cushions) and slight variations in size, all
equalizing beam suspension systems are disassembled
in the same manner.
There are several approaches to
servicing the suspension system, but when a major
overhaul is required, the complete tandem unit can be
removed from the truck chassis.
Torque arms, equalizer
beams, springs and other parts, however, may be
removed separately as required. When complete
removal is performed, be careful when disconnecting
torque rods, springs or rubber cushions from the frame
since axle assemblies are free to roll or pivot at the
equalizer beam ends.
Use jacks and other equipment
and block vehicle securely to prevent harm to personnel
and to avoid damage to the unit.
Suggested disassembly procedure is as fol-
lows:
1.
Disconnect propeller shafts, inter-axle lock control
linkage (or piping), and brake lines from axles.
2.
Place both rear axles on floor stands and remove
wheels and tires.
3.
Using overhead crane, raise truck frame sufficiently
to relieve weight from suspension system.
Block
frame securely.
4.
Disconnect torque rods from axle housing by
loosening locknuts and driving the shaft from the
bushing and the axle housing bracket.
5.
Disconnect equalizer beams from axle housings:
(Tube Type Beam End Mounting)
a.
Remove equalizer beam end tube nuts.
b.
Pull or drive end tubes from axle housing
brackets and beam end bushings.
If end tube is
frozen in bushing, install one nut on tube and
tighten against bracket until tube breaks loose in
bushing.
614
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