TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
Page 220 of 775
TM 9-2350-311-10 2-10 OPERATING PROCEDURES - CONTINUED 2-10.6 Operating Hull and Cab Doors and Hatches - Continued g. Engine Air Intake Grille Be careful when handling the engine air intake grille and travel lock. Serious injury or death could occur if struck by either the grille or travel lock. 1 Release and elevate cannon tube and traverse cab 90° (para 2-10.8) 2 Unscrew two T-handles (36). 3 Open engine air intake grille (37) and secure in the open position by removing quick release pin (38) from bracket (39) and installing in support (40). 4 Lower travel lock assembly (para 2-10.8). 5 To close engine air intake grille (37), remove quick release pin (38) from support (40) and install in bracket (39). 6 Lower engine air intake grille (37) to closed position and secure with two T-handles (36). 7 Rotate cab 90°, so gun tube is facing forward. Raise travel lock assembly and lower cannon tube into travel lock. Secure cannon tube in travel lock. 2-124 Change 2