AW1;R40135 R70;070300 1167 100589 R70;070300 1168 080288 CTM-7 (5-89) 2R3; oos os 110589 1000 Series (PRJ-Hydraulic Pump IMPORTANT: Pistons must be installed in their original bores if they are reused. Write numbers on piston plugs, discharge valve plugs and pump housing for identification. 1. Remove piston assemblies and put them in a parts tray to insure installation into the same bores from which they were removed. 3. Inspect face and skirt of pistons (C) for metal transfer, galling or scoring. Replace housing and all eight pistons if these conditions exist. Litho in U.S.A. 05-5 IMPORTANT: All springs must be the same color code. 4. Inspect springs (8) for wear or damage.
Replace ALL springs as a set if required. Free Length ........................ 48 mm (1.9 in.) (approximate) Test Length ................................. 32 mm at 80-100 N (1.3 in. at 18-22 Ib force) 1. Install new O-rings and plastic shields on piston plugs. IMPORTANT: To prevent damage to O-rings and shields, DO NOT use an air-operated wrench to tighten piston plugs; use a torque wrench. 2. Install piston assemblies and tighten piston plugs to 122 N'm (90 Ib-ft). 2. Inspect piston plugs (A) for thread damage. NEW SPRING SPECIFICATION INSTALL PISTON ASSEMBLIES REMOVE AND INSPECT PISTON ASSEMBLIES AllTractorManuals.com