- Load Haul Dump (LHD):
- R2900 (PIN: BAR; 5TW1-UP)
Reference: Specifications, RENR4579-02 (9EL3675-02), "R2900 L.H.D. Hydraulic System", "Lift Cylinder (R2900-101 to 161)"; "Lift Cylinder (R2900-162 & Up)"
Reference: Disassembly and Assembly, RENR4591-02 (9EL6547-02), "R2900 L.H.D. Hydraulic System", "Lift Cylinders"
Description of Change: The torque for the piston retaining nut in the lift cylinders has been increased. The higher torque will prevent the piston retaining nut from coming loose.
Adaptable To: The new torque is effective with the R2900 (PIN: 5TW331) LHD.
The new torque is adaptable to the R2900-101 to 170 and (PIN: 5TW1-330) LHD.
The torque for the 4J-8734 Locknut has been increased to 9500 ± 800 N·m (7006 ± 590 lb ft). The 4J-8734 Locknut is part of the following Lift Cylinders : 9DE6267, 141-1979, 9EL7256 and 9EP1700.
Note: Lubricate the threads of the nut prior to tightening the nut.
Illustration 1 | g00712947 |
Typical Lift Cylinder (1) 4J-8734 Locknut |