Section 180-0020
Suspension System - Front Suspension
SM 1979 4-00
4
pin (13). Half this size to obtain the thickness of shim
pack required for Gap 'B' (Fig. 2) at both sides.
Note: Gap 'B' at both sides should be equalised within
0.25 mm (0.01 in) maximum.
8. Shim Gap 'B' at both sides with shims (15 & 21).
Ensure that a small running clearance of 0.25 mm
(0.01 in) maximum at wear washers (14) is obtained.
9. Remove bolts (17) and reinstall with lockwashers
(18). Tighten bolts (17) to a torque of 74 Nm (55 lbf ft).
10. If removed, install and secure lube fittings (19) in
mounting pins (13). Lubricate suspension frame
spherical bearing (16) through lube fittings (19) with
grease specified in Section 300-0020, LUBRICATION
SYSTEM, until excess lube is seen.
11. Lift suspension frame (10) at front end ensuring
that mounting studs on air spring assemblies (22) pass
through holes in front frame assembly mounts. Secure
air spring assemblies (22) to front frame assembly with
nuts (30). Tighten nuts (30) to a torque of 23 Nm
(17 lbf ft).
Note: Apply 'Adsil' to mounting bolts (2) and rubber
mounts on shock absorbers (1) prior to fitting.
12. Install shock absorbers (1) between anchor
brackets on suspension frame (10) and install bolts
(2), washers (3) and locknuts (4). Install bolts (2) from
inside with locknuts (4) on the outside. Tighten
locknuts (4) until a measured distance of 47 mm
(1.85 in) across the rubber is achieved on any one
rubber.
13. Secure chain (34) on suspension frame (10) with
bolt (32) and nut (31).
14. Secure levelling valve rubber joint to mounting
bracket on suspension frame (10) with bolt (8),
washers (7), lockwasher (35) and nuts (9). Refer to
Section 180-0022, LEVELLING VALVE for adjustment
and setting procedures.
15. Lower suspension frame (10) onto chain (34).
16. Install nylon tubes to air spring assemblies (22)
with the long nylon to LH air spring and short nylon to
the RH air spring.
17. Using suitable lifting equipment, position one tyre
and rim assembly on the front axle and secure with
wheel nuts and lockwashers.
18. Using suitable lifting equipment, position opposite
tyre and rim assembly on the front axle and secure
with wheel nuts and lockwashers.
19. Using suitable lifting equipment, raise front frame
assembly sufficiently to remove stands and blocking
equipment from front frame assembly and articulation
pivot area. Lower vehicle to the ground and remove
lifting equipment.
20. With the vehicle lowered to the ground, tighten all
wheel nuts to a torque of 590 Nm (435 lbf ft).
21. Remove wheel blocks from the rear road wheels,
place the steering lock bar and oscillation lock pin in
the 'Stowed' position and the battery master switch in
the 'On' position.
MAINTENANCE
Numbers in parentheses refer to Fig. 1.
Pre-Starting Inspection: Visually inspect shock
absorbers (1), suspension frame (10) and air spring
assemblies (22) for debris, leaks and damage.
Every 50 Hours: Lubricate suspension frame
spherical bearing (16) through lube fittings (19) with
grease specified in Section 300-0020, LUBRICATION
SYSTEM, until excess lube is seen.
SERVICE TOOLS
There are no special tools required for the procedures
outlined in this section. Refer to Section 300-0070,
SERVICE TOOLS for part numbers of general service
tools required. These tools are available from your
dealer.
Courtesy of Machine.Market
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