M1089 MATERIAL HANDLING CRANE (MHC) HOIST DOWN DOES NOT OPERATE FROM REMOTE STATION (cont)

TM 9-2320-366-20-2

e123. M1089 MATERIAL HANDLING CRANE (MHC) HOIST DOWN DOES NOT OPERATE FROM REMOTE

e123.

STATION (CONT)

KNOWN INFO

TEST OPTIONS

Other crane functions from

Continuity Test or

Is continuity present

remote station OK.

STE/ICE Test #91

REASON FOR QUESTION

from hoist down solenoid

Remote control box OK.

If continuity is not present,

cable connector pin 2 to

HOIST UP/DOWN

hoist down solenoid cable

ground and from pin 1 to

controller OK.

POSSIBLE PROBLEMS

is faulty. If continuity is

terminal board lower

Faulty hoist down solenoid

present, hoist down

position 24?

cable.

solenoid is faulty.

Faulty hoist down

solenoid.

Replace hoist down solenoid

cable (para 7-111).

YES

Notify DS Maintenance.

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