TM-9-2350-311-20-1
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS
AUGUST 1994
TM-9-2350-311-20-1 - Page 1009 of 1275
TM 9-2350-311 -20-1
11-8 AIR INTAKE GRILLE — CONTINUED
a. Removal-Continued
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Grille is heavy. If hoist and sling are not available, at least four personnel are required
to lift and move grille. Improper lifting of grille can result in serious injury.
Attach U-bolts and sling to air intake grille (13). Take up slack in sling using suitable lifting device.
Remove quick-release pin (14) from air intake grille support (15) and lower air intake grille (13).
NOTE
Screws securing right end cap will vary in length. Note length and location of screw
during removal to aid in installation.
Remove four hex key screws (16 and 17) from right end cap (18).
Remove four hex key screws (19) from rear of torsion bar housing clamps (20).
Open air intake grille (13) and maintain tension with lifting device.
Remove four hex key screws (21 ) from front of torsion bar housing clamps (20).
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b. Installation
1 Connect chain (30) to quick-release pin (14) and air intake grille (13) with two S-hooks (29).
2 Install torsion bar clamps (20), torsion bar (28), and torsion bar housing (5) to air intake grille (13).
3 Install adapter (27) and shield (26) at left end of torsion bar housing (5) with three screws (25).
Remove screw (22), flat washer (23), and intake grille support (15). Remove bearing (24) from end of air intake
grille support.
Lift air intake grille (13) off vehicle.
Remove three screws (25), shield (26), and adapter (27) from left end of torsion bar housing (5).
Remove torsion bar housing (5), torsion bar (28), and torsion bar housing clamps (20) from air intake grille
(13).
Disconnect two S-hooks (29) and remove chain (30) from quick-release pin (14) and air intake grille (13).
Remove two screws (31 ), two Iockwashers (32), grille bracket (33), and shims (34). Discard Iockwashers.
11-30
WARNING
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