Operation and maintenance manual
Section 100-0020
SM 1373 Rev 2 8-03
5
Disassembly
1. Identify seal housings (32, 33, 34 & 35) to ensure
correct location on assembly/installation.
Note: Seal housings (32, 33, 34 & 35) are not
interchangeable.
2. Remove bolts (46 & 47), washers (45), seal housings
(32, 33, 34 & 35) and upper and lower shims (38).
3. Prise out and discard seals (36 & 37) from the
housings.
4. Remove and tag all bearing assemblies (30) with
spacers to ensure correct assembly/installation.
Note: Bearing assemblies (30) and spacers are a
matched set, never interchange cups, cones or
spacers between sets.
Inspection
1. Clean all parts with a suitable solvent and let dry.
DO NOT spin bearings with compressed air. Place
bearings on a clean surface, cover with a lint free cloth
and allow to dry.
2. Check bearing assemblies (30) and spacers, and
pins (40 & 43) for wear or damage. Renew as
necessary.
Note: Bearing assemblies (30) and spacers must be
renewed as a matched set.
3. Replace all seals with new parts.
Assembly
1. Apply Loctite 243 (49) sparingly to bore of seal
housings (32, 33, 34 & 35).
2. Using a suitable driver, install seals (36 & 37) into
seal housings (32, 33, 34 & 35) ensuring that the metal
ring on inside of the seals are not disturbed, and, that
they are located towards the inside of seal housing.
3. Apply Loctite 243 (49) to threads of outer seal
housing bolts (46).
4. Place outer seal housings (32 & 34) in position
ensuring that grease relief hole in seal housings are
directly opposite bearing grease port on pivot. Secure
with bolts (46) and washers (45). Tighten bolts (46) to a
torque of 94 Nm (68 lbf ft).
transmission yoke and front yoke (17). Remove
capscrews and remove driveline from vehicle.
5. Support tractor frame at front and rear with suitably
placed stands or timbers so the frame will remain level
during and after pin removal.
6. Remove bolts, washers and pins securing steering
cylinders to pivot. Secure steering cylinders clear of
pivot.
7. Release the parking brake by turning the hex-head
on the parking brake actuator fully anticlockwise.
WARNING
Tensioned spring on adjuster.
8. Attach suitable lifting equipment to pivot/rear frame
assembly. Lifting equipment must prevent pivot from
oscillating after separation, and, be capable of pulling
pivot/rear frame assembly clear of front frame. Raise
lifting equipment to support pivot/rear frame assembly.
9. Remove bolt (62), washer (61), large nut (42) and
washer (41) securing upper pin (40).
10. Remove upper pin (40). If necessary tap upper pin
(40) to ease removal taking care to avoid damaging
the threads.
Note: It may be necessary to relieve binding between
the pin and pin bores by raising or lowering the pivot/
rear frame assembly.
11. Remove bolt (48) and hardened washer (44)
securing lower pin (43).
12. Remove lower pin (43). If necessary tap lower pin
(43) to ease removal taking care to avoid damaging
the pin.
Note: Only separate the frames sufficiently to permit
removal of the articulation bearings or damage to
hydraulic and electrical connections could result.
13. Remove blocks from rear wheels and use lifting
equipment to pull pivot/rear frame assembly clear of
the front frame. After moving, block pivot/rear frame
assembly and block the wheels.
14. Remove spacer (39) noting orientation to ensure
correct installation.
Chassis - Articulation and Oscillation Pivot