PUMP GP-26 1 GR 20R4330 - Caterpillar

NEVER use the starter to rotate the engine crankshaft in the following procedure. Always use an engine turning tool. Turn the crankshaft in the normal direction of rotation only.
2 Rotate the crankshaft until piston (1) of the cylinder pack to be removed is at BDC (bottom dead center). Do NOT insert the tool at this time.3 Clean the exposed part of the cylinder liner with a nonflammable solvent. Wipe off all remaining solvent. 4 Loosen nut (2), above the top plate of the puller tool, so that the puller is at its minimum diameter. Insert the puller tool into the cylinder liner.5 Tighten nut (2) to a torque of 120 15 N m (90 10 lb ft) until the puller tool is expanded tightly against the wall of the cylinder liner.6 The cylinder pack (liner, piston, connecting rod) can be removed from the engine block by one of the following three methods.
The weight of a cylinder pack plus the puller tool can exceed permissable weight for manual lifting. Do not lift manually. Always use a lifting device.
Method (A) is the preferred method and should be used whenever possible.A Loosen the nuts on the rod cap bolts (make sure the nuts are still against the rod cap). Rotate the crankshaft with an engine turning tool until the top of the piston contacts the puller tool. Continue to turn the crankshaft with the engine turning tool until the cylinder pack is forced out of the engine block, and the rod journal is at top dead center (TDC). Remove the rod cap. Install rubber or plastic tubing over the connecting rod bolts to protect the crankshaft journal surfaces. B Remove the rod cap. Install rubber or plastic tubing over the connecting rod bolts to protect the crankshaft journal surfaces. Use a 5F7347 Liner Puller Head (3) and three 5F7350 Blocks (4) to pull the cylinder pack.
If a jib crane is used to pull the cylinder pack, the vehicle must be secured to avoid lifting the engine end of the vehicle.
C Remove the rod cap. Install rubber or plastic tubing over the connecting rod bolts to protect the crankshaft journal surfaces. Install a lifting eye (5) on the puller tool rod. Pull the cylinder pack with a jib crane.