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 253 of 1275

TM 9-2350-311-20-1

(3) BLOWER MOTORS FAIL TO STOP WHEN

VEHICLE IS PLACED IN NEUTRAL

INITIAL SETU P

Tools

General mechanic’s tool kit (item 64, Appx H)

Multimeters (item 36, Appx H)

TA-1 probe kit (item 43, Appx H)

Personne I Required

Two

Equipment Condition

=

. .

Engine

compartment

access cover removed (para 11-5)

Transmission

left access door open (TM 9-2350-311-10)

Air intake grille open (TM 9-2350-311-10)

NOTE

Vehicle must be in neutral for the following step.

A

1. Disconnect lead 415B from neutral safety

switch.

2. Turn MASTER switch ON and check air

cleaner blower motors for operation.

3. Turn MASTER switch OFF.

Do air cleaner blower motors stop?

I

(para 8-36).

Replace

air cleaner blower relay

Repalce neutral safety switch

END OF TASK

3-153

(para 8-15).