MAC TOOLS MW250 Instrucciones de operaciones descargar pdf (Pagina 301)

100

101

TM 5-4310-452-14

5-12. PISTONS AND CONNECTING RODS MAINTENANCE.

This Task Covers:

a. Removal c. Assembly

b. Disassembly d. Installation

Initial Setup:

Equipment Conditions: Materials/Parts:

• Cylinder removed (see paragraph 5-8). • Lubricating oil (Item 7, Appendix E)

• Oil pan removed (see paragraph 5-16). • Rag (Item 11, Appendix E)

• Battery cables disconnected (see paragraph • Two bolts

4-57) • Two circlips

Tools/Test Equipment: • Three piston rings

• General mechanic's tool kit.

• Feeler gage

• Oven

• Ring compressor

• Ring expander

a. REMOVAL

NOTE

Use this task to remove any 1 of 4

pistons and connecting rods.

1. Remove 2 bolts (10) and connecting rod bearing

cap (9). Discard bolts.

CAUTION

To prevent damage to piston or

piston rings, do not allow piston or

connecting rod to knock against

engine block when removing piston

and connecting rod.

2. Carefully lift piston (6) and connecting rod (8) out of

engine block.

b. DISASSEMBLY

1. Remove 2 circlips (4) from pistons (6), Discard

circlips.

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MAC TOOLS MW250 Instrucciones de operaciones Pagina 301

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