TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 202 of 775

TM 9-2350-311-10

2-10 OPERATING PROCEDURES — CONTINUED

2-10.3 Transmission Shift Control Lever — Continued

Follow backing up procedures using two guides (para 2–10.4).

f. R1 (Reverse-Range 1)

Use when:

1

2

3

Never attempt to shift into R1 and R2 (reverse range:

stop and the engine is operating at idle rpm.

Backing up (para 2–10.4).

Making turns with heavy loads or on soft ground.

1 and 2) unless the vehicle is at a dead

Ascending steep grades in rearward movement for maximum engine power. (Maximum speed is 5 mph.)

g. R2 (Reverse- Range 2)

Use when:

On level, hard surfaces when rearward movement for long distances is necessary. (Maximum speed is 7 mph.)

2-106