C175-16 and C175-20 Locomotive Engines Caterpillar

Aftercooler - Remove and Install

Usage:

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7575	Link Bracket	2
B	138-7573	Link Bracket	2
C	1U-9200	Lever Puller Hoist	1
D	-	Guide Bolt M10 X 1.5 by 100 mm	2

Start By:

Remove the air inlet lines.

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Illustration 1	g06094133

Remove bolts (6) and strap (5). Remove bolts (3) and elbow (2). Disconnect tube assembly (4).
Remove shield assembly (1).
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Illustration 2 g06094143
Remove clamps (7).
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Illustration 3 g06094154
Disconnect wiring harness (8).
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Illustration 4 g06094170
Remove line assembly (9) and line assembly (10).
Remove bolts (13) and strap (15). Remove bolts (11) and elbow (12).
Disconnect tube assembly (14), tube assembly (16), and tube assembly (17).
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Illustration 5 g06094177
Attach a suitable lifting device to aftercooler (18). The weight of aftercooler (18) is approximately 590 kg (1300 lb).
Remove bolts (19). Repeat for the opposite side.
Use Tooling (C) in order to lift the rear of aftercooler (18). Remove aftercooler (18) from the engine.
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Illustration 6 g06094192

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Illustration 7 g06094204
Remove bolts (21), bolts (22), and elbow (20).
Repeat Step 11 for the opposite side.
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Illustration 8 g06094520
Attach Tooling (B) and a suitable lifting device onto housing (23). The weight of housing (23) is approximately 39 kg (85 lb). Remove bolts (24). Remove housing (23) and the gasket.
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Illustration 9 g06094554
Remove two bolts (25). Install Tooling (D). Remove remaining bolts (25).
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Illustration 10 g01198615

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Illustration 11 g06094568
Slide cover (26) outward on Tooling (D). Attach Tooling (B) and a suitable lifting device onto cover (26). The weight of cover (26) is approximately 39 kg (85 lb). Remove cover (26) and the gasket.
Repeat Steps 14 and 15 for the opposite side.
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Illustration 12 g06094576
Remove bolts (28) and elbow (28). Remove bolts (29) and elbow (30).
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Illustration 13 g06094583
Attach a suitable lifting device onto cover (31). The weight of cover (31) is approximately 68 kg (150 lb). Remove bolts (32). Remove cover (31) and the gasket.

Installation Procedure

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Table 2
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7575	Link Bracket	2
B	138-7573	Link Bracket	2
C	1U-9200	Lever Puller Hoist	1
D	-	Guide Bolt M10 X 1.5 by 100 mm	2
E	8T-9022	Silicone Gasket	1

Install aftercooler (18) in reverse order of removal.
1. Install Tooling (D). Position a new gasket on Tooling (D). Apply Tooling (E) in order to fill the open end of the seal groove at each of the four corners. Apply a continuous bead of 5 mm (0.2 inch) diameter between points (A) and (B) at each of the four corners.