TM-9-2320-366-20-3

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 3 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-3 - Page 482 of 1396

aa5.

M1089 LH OR RH 30K WINCH CABLE DRUM TENSIONER DOES NOT OPERATE (CONT)

KNOWN INFO

TEST OPTIONS

Air Pressure Test

STE/ICE-R Test #50

REASON FOR QUESTION

YES

NO

5.

Main winch LH/RH freespools.

30K winch pneumatic manifold

solenoid L8/L4 OK.

Air hoses OK.

POSSIBLE PROBLEMS

Faulty M1089 LH/RH 30K

winch pneumatic valve

assembly.

Is 55-65 PSI (380-440 kPa)

present at output 90 degree

fitting of regulator valve?

If 55-65 PSI (380-440 kPa) is

not present, regulator valve is

faulty. If 55-65 PSI

(380-440 kPa) is present,

shuttle valve is faulty.

Replace regulator valve (para 17-30).

Replace shuttle valve (para 17-13).

TM 9-2320-366-20-3

2-2430.8

Change 1