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 860 of 1275

LEGEND

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2

3

4

5

6

7

8

9

10

11

12

13

Transmission lubrication

Transmission lubrication

Main

Third gear

Fourth gear

First and second gear

First, neutral, and reverse one signal pressure

Reverse

Reverse, third, and fourth signal pressure

Geared steer clutch

Transmission lubrication

Geared steer coolant

Output clutch

14 Brake coolant

15 Brake

16 Brake

17 Brake coolant

18 Geared steer clutch

19 Geared steer coolant

20 Transmission lubrication

21 Output clutch

22 Throttle

23 Throttle valve

24 Lockup

25 Governor (pitot)

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