Chapter 7: MAINTENANCE INSTRUCTIONS FOR UNITS EQUIPPED WITH RETROFIT KIT

Following the possible remedy for "Blower tube bro-

Paragraph 5-4. Add the following references where in-

ken" add reference to paragraph 7-19.

dicated:

Following the possible remedy for "Valve chest

Paragraph 5-6. Following the possible remedy for

clogged" add reference to paragraph 7-19.

"Rifle bar, pawls, rifle nut, or chuck nut damaged or worn"

Following the possible remedy for "Damaged or worn

add reference to paragraph 7-19.

parts" add reference to paragraph 7-19.

Paragraph 5-7. Following the possible remedy for

Paragraph 5-5. Add the following references where in-

"Worn bearings" add reference to paragraph 7-22.

dicated:

Following the possible remedy for "Dirt clogging drill"

Page A-1. Chapter 7 is added before Appendix A as fol-

add reference to paragraph 7-19.

lows:

CHAPTER 7

MAINTENANCE INSTRUCTIONS FOR UNITS EQUIPPED WITH RETROFIT KIT

Section I. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS

7-1.

Control Valves and Manifold

(2) Remove five O-rings (4) from valve (2) or man-

ifold (3). Discard O-rings.

Replacement

(3) Repeat steps (1) and (2) for remaining valves.

a. Removal.

(4) Disconnect crawler air hose (5) from tee (6).

(5) Disconnect impact valve air hose (7) from tee

(6).

(6) Remove tee (6) and nipple (8) from manifold

(1) Remove three screws (1). Remove valve (2)

(3).

from manifold (3).

(7) Tag and disconnect five hoses (9).