Chassis - Articulation and Oscillation Pivot Section 100-0020 transmission yoke and front yoke (17). Remove capscrews and remove driveline from vehicle. Disassembly 1. Identify seal housings (32, 33, 34 & 35) to ensure correct location on assembly/installation. 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. Note: Seal housings (32, 33, 34 & 35) are not interchangeable. 6. Remove bolts, washers and pins securing steering cylinders to pivot. Secure steering cylinders clear of pivot. 2. Remove bolts (46 & 47), washers (45), seal housings (32, 33, 34 & 35) and upper and lower shims (38). 7.
Release the parking brake by turning the hex-head on the parking brake actuator fully anticlockwise. 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. WARNING Tensioned spring on adjuster. Note: Bearing assemblies (30) and spacers are a matched set, never interchange cups, cones or spacers between sets. 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.
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. 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. 2. Check bearing assemblies (30) and spacers, and pins (40 & 43) for wear or damage. Renew as necessary. Note: It may be necessary to relieve binding between the pin and pin bores by raising or lowering the pivot/ rear frame assembly. Note:
Bearing assemblies (30) and spacers must be renewed as a matched set. 3. Replace all seals with new parts. 11. Remove bolt (48) and hardened washer (44) securing lower pin (43). Assembly 12. Remove lower pin (43). If necessary tap lower pin (43) to ease removal taking care to avoid damaging the pin. 1. Apply Loctite 243 (49) sparingly to bore of seal housings (32, 33, 34 & 35). Note: Only separate the frames sufficiently to permit removal of the articulation bearings or damage to hydraulic and electrical connections could result. 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. 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. 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). 14. Remove spacer (39) noting orientation to ensure correct installation. SM 1373 Rev 2 8-03 5