MAC TOOLS MW250 Instruções de Operação descarregar pdf (Página 127)

TM 5-4310-452-14

4-34. COWLING, DUCT, GUIDE RAIL, SHIELD, AND PLATE REPLACEMENT.

This Task Covers:

a. Removal c. Installation

b. Cleaning

Initial Setup:

Equipment Conditions: Materials/Parts:

• Engine off. •·Twenty-two lockwashers

• Left door assembly open.

• Battery cables disconnected (see paragraph Personnel Required: Two

4-57).

• Blower assembly removed (see paragraph 4-32). General Safety Instructions:

• Fuel lines removed (see paragraph 4-24). • Compressed air used for drying or cleaning

purposes must not exceed 30 psi (207 kPa).

Tools/Test Equipment:

• General mechanic's tool kit

• Face mask

•·Soft bristle brush

a. REMOVAL

1. Open 2 fasteners (4) and remove duct (5) from guide rail (6).

2. Remove 8 bolts (7) and lockwashers (8) from guide rail (6). Remove guide rail. Discard lockwashers.

3. Remove 4 bolts (20), lockwashers (21), and flatwashers (22) from stay plate (37), plate (16), and shield (9). Discard

lockwashers.

4. Remove 3 bolts (12), lockwashers (11), and flatwashers (10) from shield (9). Remove shield. Discard lockwashers.

5. Remove 3 bolts (13, 19, and 29), lockwashers (14, 18, and 28), flatwashers (15, 17, and 27), and nut (23) from plate

(16). Remove plate. Discard lockwashers.

6. Remove 2 bolts (30 and 40), lockwashers (32 and 39), flatwashers (33 and 38), and nut (34) from stay plate (37).

Discard lockwashers.

7. Remove bolt (3), lockwasher (2), washer (1), from stay plate (37). Discard lockwasher.

8. Remove bolt (36) and washer (35) from stay plate (37).

9. Remove bolt (26), lockwasher (25), and flatwasher (24) from base cowling (31) and stay plate (37). Remove stay

plate. Discard lockwasher.

10. Remove oil cooler (see paragraph 4-17).

11. Remove base cowling (31).

b. CLEANING

1. Loosen dust and debris on duct (5), guide rail (6), shield (9), plate (16), base cowling (31), and stay plate (37) with

brush.

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MAC TOOLS MW250 Instruções de Operação Página 127