M1089 MATERIAL HANDLING CRANE (MHC) BOOM UP DOES NOT OPERATE FROM REMOTE STATION (cont)

TM 9-2320-366-20-2

e124. M1089 MATERIAL HANDLING CRANE (MHC) BOOM UP DOES NOT OPERATE FROM REMOTE STA-

e124.

TION (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 up solenoid

Remote control box OK.

If continuity is not present,

cable connector pin 2

BOOM UP/DOWN

boom up solenoid cable

to ground and from

controller OK.

POSSIBLE PROBLEMS

is faulty. If continuity is

pin 1 to terminal board

Faulty boom up solenoid

present, boom up

lower position 13?

cable.

solenoid is faulty.

Faulty boom up solenoid.

Replace boom up solenoid

cable (para 7-108).

YES

Notify DS Maintenance.

2-1332