TM-9-2350-311-34-1

HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-1 - Page 214 of 352

TM 9-2350-311-34-1

SECTION Il. HULL ELECTRICAL COMPONENTS

7-15 RECTIFIER (M109A2/M109A3)

This task covers:

a. Disassembly

b. Inspection and repair

c. Assembly

M109A2/M109A3

Tools

General mechanic’s tool kit (item 14, Appx C)

Multimeter (item 16, Appx C)

Soldering gun (item 11, Appx C)

Acetone solvent (item 1, Appx B)

Electrical tape — black (item 25, Appx B)

Gaskets (2) (item 44, Appx F)

Lockwashers (3) (item 24, Appx F)

Preformed packing (item 49, Appx F)

Pressure-sensitive tape (item 26, Appx B)

Sealing compound (item 19, Appx B)

Silicone compound (item 22, Appx B)

Solder (item 23, Appx B)

Solder flux (item 24, Appx B)

References

TB SIG 222

LEGEND

1 Power diode assembly CR-1

2 Power diode assembly CR-2

3 Power diode assembly CR-3

4 Power diode assembly CR-4

5 Power diode assembly CR-5

6 Power diode assembly CR-6

7 Capacitor C-1

8 Capacitor C-2

9 Capacitor C-3

10 Capacitor C-4

11

12

13

14

15

16

17

18

19

20

Capacitor C-5

Capacitor C-6

Heat sink terminal

Heat sink

Capacitor C-7

Terminal E-3

Terminal E-2

Terminal E-1

Connector J-1

Connector J-2

NOTE

Point of symbol indicates direction of conventional current flow. Power diodes consist

of two diodes and one terminal.

7-78