Terex TA30, Maintenance Manual

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6
SM 1975 4-00
Chassis - Articulation and Oscillation Pivot
Section 100-0020
has exhausted from the air tanks.
4. Position levelling jack under centre front portion of
the front frame. Raise jack and block frame to remain
level after removal of the articulation pins. Check that
front wheels are still effectively blocked.
Note: Make sure that front frame is correctly
supported and prevented from tilting on the axle, or
damage to coupling etc. could result.
5. Disconnect steering cylinders by removing bolts
(36), lockwashers (14), washers (45) and pins (44)
from attachment points on pivot (1) housing. Move
steering cylinders clear of pivot (1) housing and
secure.
Note: Take extra care when handling drivelines as
chips, dents, burrs or deformity on any rotating mass
creates vibration and excessive wear during any
operation.
6. Match mark yokes and mating surfaces of
transmission - pivot driveline (Fig. 2) to aid in
'Installation'. Remove bolts, lockwashers and caps and
remove driveline from the machine.
7. Remove bolt (53) and hardened washer (54)
securing pin (55) to pivot (1) housing. Remove nut (51)
and withdraw pin (55), tapping pin downwards to ease
removal. Take care not to damage the threads on pin
(55).
Note: It may be necessary to adjust the frame levelling
jack to relieve binding between pin (55) and pin bores
during removal.
8. Remove bolt (46), lockwasher (14) and washer (47)
securing pin (32) to pivot (1) housing.
9. Remove pin (32), tapping pin upwards to ease
removal. Take care not to damage the threads on pin
(32).
Note: It may be necessary to adjust the frame levelling
jack to relieve binding between pin (32) and pin bores
during removal.
10. Attach suitable lifting equipment to the rear frame
and take up slack.
Note: Only separate the frames sufficiently to permit
removal of the articulation bearings or damage to
electrical, hydraulic and air connections could result.
11. Remove blocking from the rear frame and wheels
26. Connect pivot - centre axle driveline (Fig. 2) to
brake yoke/disc assembly as noted on 'Removal'.
Install caps and secure with lockwashers and bolts.
27. Position parking brake calliper (7, Fig. 3) in
position and install left hand torque plate (10, Fig. 3),
front and rear wedge plates (8 & 9, Fig. 3) and secure
in place with bolts (6, Fig. 3), washers (11, Fig. 3) and
locknuts (12, Fig. 3).
28. Install transmission - pivot driveline (Fig. 2) with
caps, lockwashers and bolts as noted on 'Removal'.
29. Position guard (4, Fig. 3), if fitted, and secure to
frame using bolts (1, Fig. 3), lockwashers (2, Fig. 3)
and nuts (3, Fig. 3).
30. Place the battery master switch in the on position,
start the engine and allow air pressure in the tanks to
build up to correct operating pressure.
31. Adjust parking brake as shown in Section 170-0010,
PARKING BRAKE AND MOUNTING.
32. Remove all blocking from the road wheels.
ARTICULATION BEARINGS
Removal
Numbers in parentheses refer to Fig. 1, unless
otherwise specified.
Note: The lengths of the electrical, hydraulic and air
connections between the two frames are designed to
permit articulation. As a result, the frames can be
separated sufficiently to permit removal of the
articulation bearings without disconnecting these
connections.
WARNING
To prevent personal injury and property
damage, make sure blocking or lifting
equipment is properly secured and of adequate
capacity to do the job safely.
1. Position the vehicle in a level work area, apply the
parking brake and switch off the engine.
2. Block all road wheels and place the battery master
switch in the 'Off' position.
3. Open drain cocks on air tanks to drain air pressure
from the tanks. Close air tank drain cocks when air
Courtesy of Machine.Market