Usage:
416C (4ZN182-Up, 1WR665-Up),
426C (6XN602-Up, 1YR309-Up),
436C (8TN285-Up, 1FR219-Up) Backhoe Loaders
- SUPPLEMENT: MARCH 30, 1998
Service Magazine Article SEPD0400, Article 12, Page 9; "Proper Assembly Of Elbow And O-Ring Seal For The Piston Pump Group".
The assembly procedure for the elbow and o-ring seal on Page 9 is incorrect. For the correct assembly procedure, see the article "Correction To Proper Pump Group" in Service Magazine SEPD0410, Article 11, Page 11 March 30, 1998.
--------------- END SUPPLEMENT ---------------
The 030-7946 Elbow and 3J-7354 O-Ring Seal within the 112-6564 Piston Pump Group in the above machines MUST be properly assembled. Improper assembly of the 030-7946 Elbow and 3J-7354 O-Ring Seal may cause hydraulic oil leakage.
The assembly process improvement is in production, effective with the above machines.
Installation
View of the 112-6564 Piston pump Group.
1. Install the 030-7946 Elbow (2) turned down into the port until the 3J-7354 O-Ring Seal contacts the seat in the pressure and flow compensator (1).
2. Position the 030-7946 Elbow (2) to align with the 135-6615 Tube Assembly (4).
3. Tighten the O-ring nut (3).