TRACK GP 5243171 - Caterpillar

6V7047 and 5P5247 Hydraulic Puller Groups
For replacement parts in the following charts listed without Caterpillar part numbers, contact:Technical Services
Owatonna Tool Company
615 Eisenhower Drive
Owatonna, MN 55060
Phone (507) 455-7000
Fax (507) 455-7215
Illustration 8 Exploded View of 6V7047 and 5P5247 Hydraulic Puller Groups Troubleshooting Hydraulic Puller Cylinder Groups
The following troubleshooting and repair procedures should only be performed by qualified personnel familiar with this equipment.
1. Cylinder operates erratically.2. Piston does not advance.3. Piston extends only partly.4. Piston advances slower than normal.5. Piston advances but does not maintain pressure.6. Cylinder leaks oil.7. Piston will not retract or retracts slower than normal.Problem 1: Cylinder operates erratically.
Probable Cause:1. Air in system. Bleed air and check for leaks.2. Viscosity of oil too high. Change to lower viscosity oil.3. Internal leakage in cylinder Replace worn packings.