324E and 329E Excavators and 329E MHPU Mobile Hydraulic Power Unit C7.1 Engine Supplement Caterpillar

Removal Procedure

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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system. Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on.

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Illustration 1	g02407117

1. Turn battery disconnect switch (1) to the OFF position.

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Illustration 2	g02461216

2. Remove guard assemblies (2) .

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Illustration 3	g02461217

3. Disconnect harness assemblies (3) and (4). Reposition harness assemblies (3) and (4) out of the way.

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Illustration 4	g02461219

4. Disconnect ground strap (5) from electric starting motor (6) .

5. Remove nuts (7) .

6. Remove electric starting motor (6). If a gasket is installed, remove the gasket.

Installation Procedure

1. Install in reverse order.

   Tighten M10 nuts to a torque of 44 N·m (33 lb ft).

   Tighten M12 nuts to a torque of 78 N·m (58 lb ft).