LOCKWASHER 6F0253 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 171-4660 Bracket 2
4C-9832 Engine Rollover Stand 1
B 138-7573 Link Bracket 2
C 1H-3110 Bearing Puller 1
8B-7560 Step Plate 1
9U-6600 Hydraulic Pump 1
1H-3108 Push-Puller Leg 2
1H-3107 Bearing Puller 1
3H-0468 Puller Plate 5
3H-0465 Push-Puller Plate 2
1P-0820 Hydraulic Puller 1
5B-0637 Nut 1
8S-6586 Screw 1
D 5P-0944 Dowel Puller Group 1
5P-0939 Dowel Extractor 1 Start By:
Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install".
Remove the crankshaft front seal. Refer to Disassembly and Assembly, "Crankshaft Front Seal - Remove".
Remove the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove". Note: Put identification marks on the engine block, main bearing caps, and main bearings during the removal procedure. Identification marks will ensure proper installation during the installation procedure.Note: Put identification marks on the connecting rods, connecting rod bearing caps, and connecting rod bearings during the removal procedure. Identification marks will ensure proper installation during the installation procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Position the engine on Tooling (A).
Illustration 1 g01096924
Remove bolts (2).
Remove connecting rod caps (1).
Push the piston assemblies toward the cylinder heads.
Illustration 2 g01096760
Ensure that Timing Marks “V” are aligned on idler gear (4) and crankshaft gear (3).
Illustration 3 g01096945
Remove bolts (5). Remove main bearing caps (6).
Illustration 4 g00567844
Remove thrust plates (7) from the center main bearings.
Illustration 5 g00567847
Install Tooling (B) on each end of the crankshaft.
Attach a suitable lifting device to crankshaft (8). The weight of crankshaft (8) is approximately 215 kg (475 lb). Remove crankshaft (8).
Illustration 6 g01096769
Use Tooling (C) to remove crankshaft gear (3). Use Tooling (D) to remove the dowel that is under crankshaft gear (3) if a replacement is necessary.
Illustration 7 g01096775
Remove pin (9) from the crankshaft with Tooling (D) if the pin is worn or damaged.