M1084/M1086 MATERIAL HANDLING CRANE (MHC) BOOM DOWN DOES NOT OPERATE FROM REMOTE STATION (cont)

TM 9-2320-366-20-2

e109. M1084/M1086 MATERIAL HANDLING CRANE (MHC) BOOM DOWN DOES NOT OPERATE FROM

e109.

REMOTE 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 boom down

Remote control box OK.

If continuity is not present,

solenoid cable

BOOM UP/DOWN

boom down solenoid cable

connector pin 2 to

controller OK.

POSSIBLE PROBLEMS

is faulty. If continuity is

ground and from pin 1

Faulty boom down solenoid

present, boom down

to terminal board lower

cable.

solenoid is faulty.

position 22?

Faulty boom down solenoid.

Replace boom down

solenoid cable (para 7-86).

YES

Notify DS Maintenance.

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