MAIN WINCH LH AND RH FREESPOOLS DO NOT OPERATE (CONT)

TM 9-2320-366-20-3

aa4. MAIN WINCH LH AND RH FREESPOOLS DO NOT OPERATE (CONT)

WARNING

Read WARNING

KNOWN INFO

TEST OPTIONS

on following page.

Air Pressure Test

LH and RH 30K winches

STE/ICE-R Test #50

operates.

Is 75-120 PSI

REASON FOR QUESTION

STATION SELECTOR switch to

(518-827 kPa) present at

WRECKER CONTROL PANEL.

If 75-120 PSI (518-827 kPa) is

30K winch manifold

MODE SELECTOR SWITCH to

not present, M1089 30K winch

assembly?

NORMAL.

manifold assembly is faulty. If

MAIN WINCH LH and RH

75-120 PSI (518-827 kPa) is

SPEED switch operates.

present, M1089 30K winch

Terminal block jumper OK.

manifold assembly is faulty.

Pressure protection valve OK.

Air hoses OK.

POSSIBLE PROBLEMS

Faulty M1089 30K winch

manifold assembly.

Faulty M1089 30K winch

Notify DS Maintenance to

pneumatic manifold assembly.

YES

repair or replace M1089 30K

winch manifold assembly.

Repair or replace M1089 30K winch

pneumatic manifold (para 17-29).

2-2428.6

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