572R Pipelayer Engine Supplement Caterpillar

Removal Procedure

Start By:

1. Remove the fan guard. Refer to Disassembly and Assembly, "Fan Guard - Remove and Install" for the machine that is being serviced.

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Illustration 1	g00639755

1. Loosen bolt (6) and nut (1) .

2. Remove V-belts (2) .

3. Remove bolts (4) and carefully remove fan (7) from adapter (5) .

4. Remove bolts (3). Remove adapter (5) and fan (7) .

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Illustration 2	g00639756

5. Remove four bolts (9) and bracket (8) .

6. Remove fan drive (10). The weight of fan drive (10) is 29 kg (64 lb).

Installation Procedure

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Illustration 3	g00639756

1. Install fan drive (10) in the original location. Install bracket (8) and four bolts (9) .

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Illustration 4	g00639755

2. Install adapter (5) and fan (7). Install bolts (3) .

3. Carefully install fan (7) on adapter (5). Install bolts (4) .

4. Install V-belts (2). Install nut (1). Tighten bolt (6) .

5. Adjust the V-belt tension.

   Note: Check the fan belt tension. Use a Kent Moore Company BT-33-97 gauge. The correct tension for a new V-belt is 534 ± 22 N (120 ± 5 lb). The correct tension for a used V-belt is 400 ± 44 N (90 ± 10 lb). A used V-belt has been active over 30 minutes at rated speed.

End By: Install the fan guard. Refer to Disassembly and Assembly, "Fan Guard - Remove and Install" for the machine that is being serviced.