PIN 4725364 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-6198 Crankshaft Turning Tool 1
B 230-6283 Timing Pin (Crankshaft) 1
C 231-8849 Timing Pin (Balancer) 1
D 1P-2320 Combination Puller 1 Start By:
Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".
Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and Install". Note: In order to remove the balancer, the engine must be removed from the machine. The engine should be mounted in a suitable stand and placed in the inverted position.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Use Tooling (A) in order to rotate the crankshaft so that number one piston is at the top center position.
Illustration 1 g01259627
Typical example
Install Tooling (B) through hole (X) in the front housing. Use Tooling (B) in order to lock the crankshaft in the correct position.
Illustration 2 g01259635
Typical example
Remove bolts (3) and suction pipe (2).
Remove the joint from the suction pipe.
Illustration 3 g01252310
Typical example
Install Tooling (C) into balancer (1). Ensure that Tooling (C) is engaged into the hole in drive shaft (5).
Attach a suitable lifting device to balancer (1). Support the weight of the balancer. The balancer weighs approximately 23 kg (51 lb).
Remove bolts (4). Use the lifting device to remove the balancer.
Illustration 4 g01259636
Do not remove dowels (6) and (7) unless the dowels are damaged. Note: The balancer unit is not a serviceable item. The engine oil pump and the engine oil relief valve are the only serviceable parts of the balancer.Disassembly Procedure
Remove the engine oil relief valve. Refer to Disassembly and Assembly, "Engine Oil Relief Valve - Remove and Install".
Illustration 5 g01344542
Remove bolt (8) and hub (9). Remove idler gear (10) and thrust washer (11).
Illustration 6 g01259631
Remove nut (12). Use Tooling (D) in order to remove gear (13) from the shaft of the oil pump. Note: Do not use a timing pin to lock the balancer in order to loosen nut (12).
Remove bolts (14) and remove front cover (15).
Remove outer rotor (17) and remove inner rotor (16). Note: Mark the direction of rotation of the rotors.