C175-16 and C175-20 Locomotive Engines Caterpillar

Crankshaft - Remove

Usage:

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	456-6500	Engine Rollover Stand	1
	284-8777	Adapter Plate (Rear)	1
	284-8766	Adapter Plate (Front)	1
B⁽¹⁾	253-3272	Cylinder	2
C⁽²⁾	178-9312	Hose As	2
D⁽³⁾	253-3276	Distribution Coupler	1
D⁽³⁾	185-0683	Gage As	1
E⁽⁴⁾⁽⁵⁾	227-6724	Electric Hydraulic Pump Gp (120 V)	1
	227-8834	Electric Hydraulic Pump Gp (240 V)	1
	191-5347	Hydraulic Pump Gp	1
	156-7167	Manual Hydraulic Pump	1
F	284-5266	Spanner Wrench	1

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⁽¹⁾	Part of Tool Group 278-1150
⁽²⁾	Part of Tool Group 278-1150
⁽³⁾	Part of Tool Group 278-1150
⁽⁴⁾	Use any of the pumps that are listed in Tooling (D) for this procedure.
⁽⁵⁾	The latest pumps and hoses require (22000 psi) capacity.

Note: Tooling (A) is not rated for weight of entire long block. Heads must be removed prior to installation.

Start By:

Remove rocker arm shaft assemblies.
Remove the cylinder heads.
Remove the engine oil pan.
Remove the front housing.
Remove the flywheel housing.
Remove the engine oil cooler.

Use Tooling (A) to rotate the engine to approximately 120 degrees.
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Illustration 1 g01224384
Install Tooling (B) onto the studs for the crankshaft main bearing cap. Tighten threaded collar (1) of Tooling (B). Loosen threaded collar (1) of Tooling (B) by 1 1/2 turns. Attach Tooling (C) onto Tooling (B). Attach Tooling (C) onto Tooling (D). Attach Tooling (D) onto Tooling (E). Apply approximately 135 MPa (19580 psi) of pressure to Tooling (B). Use drive (2) on Tooling (B) to loosen the nuts for the crankshaft main bearings. Turn drive (2) on Tooling (B) by approximately three turns. Release the pressure on Tooling (B). Remove Tooling (B). Repeat for the remaining main bearing caps.
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Illustration 2 g01432170
Remove nuts (3) for the crankshaft main bearings. Remove plate (4). Remove bolts (5) from each side of the engine.
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Illustration 3 g01432171
Remove main bearing cap (6) and lower main bearing (7).
Use Tooling (A) to rotate the engine to approximately 180 degrees so that the crankshaft is on top.
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Illustration 4 g01432172
Number counterweights (13) for assembly purposes. Remove bolts (11). Remove counterweights (13). The weight of counterweights (13) is approximately 18 kg (40 lb). Number the rod caps and the connecting rods for assembly purposes. Remove bolts (8). Remove rod caps (9). Lay rod caps (9) on the side to prevent damage. Position pistons (10) away from crankshaft (12).
Note: Match the tabs on the ODD and EVEN connecting rod caps with the connecting rod.
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Illustration 5 g01224401

Note: If the counterweights are installed on the crankshaft, the weight of the crankshaft on a C175-16 is approximately 1000 kg (2205 lb).
Note: If the counterweights are installed on the crankshaft, the weight of the crankshaft on a C175-20 is approximately 1215 kg (2680 lb).
Attach a suitable lifting device onto crankshaft (12). The weight of crankshaft (12) on a C175-16 is approximately 661 kg (1457 lb).The weight of crankshaft (12) on a C175-20 is approximately 826 kg (1822 lb). Remove crankshaft (12).
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Illustration 6 g01224408
Remove upper main bearings (16) from cylinder block (14). Remove thrust bearing (15) from cylinder block (14).
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Illustration 7 g01224414
Install Tooling (F) onto main bearing stud (17). Use a suitable ratchet and Tooling (F) to remove main bearing stud (17).