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Section II. DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
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TM-5-3820-239-15 Drill Pneumatic Drifter: Boom-Type; Crawler-Mounted; Self-Propelled (Ingersoll-Rand Models CM150A/D475A and CM225/D475A) Manual
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Impact Valve Repair

(10) Lightly coat inside of cage (15) with GAA, then
(2) Check all parts for cracks, damage, and exces-
sive wear. Replace all cracked, damaged, and worn parts.
press balls (17) into place.
(3) Inspect two bushings in accordance with TM
Note: Spring cap has an air hole drilled in it. Install spring cap on
9-214. Replace if necessary.
valve body with air hole facing port side of valve body.
c. Assembly.
(11) Install spring cap (14) over detent (16). Secure
(1) Install two new O-rings (27) in each bushing
spring cap to body (8) using four screws (13).
(26).
(12) Install new O-ring (12) in lever cap (5).
(2) Install two bushings (26) in body (8).
(13) Install knuckle (2) in lever cap (5), then install
(3) Install two new O-rings (25) in middle of plung-
screw (6). Leave screw loose.
er (11).
(14) Position lever cap (5) for installation on body
(4) Install new O-ring (24) on each end of plunger
(8). Connect link assembly (10) to knuckle (2) and plunger
(11).
(11) and secure with clip (9).
(5) Lightly coat plunger (11) with GAA, then in-
(15) Secure lever cap (5) to body (8) using four
stall in body (8).
screws (7).
(6) Install new O-ring (23) and retainer (22) in each
(16) Tighten screw (6).
end of body (8).
(17) Slide clip (4) and boot (3) over lever (1).
(7) Install new O-ring (21) and flatwasher (20) in
(18) Screw lever (1) into knuckle (2).
each end of body (8).
(8) Slide detent (16) over plunger (11) and install
(19) Slide boot (3) over lever cap (5) and secure in
pin (19). Secure pm in place with spring clip (18).
place with clip (4).
(9) Install cage (15) in spring cap (14).
(20) Install valve (see paragraph 7-1).
21

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