PLACING IN SERVICE.

TM 9-2320-279 -20-1

Maintenance Procedures (Cent)

HERE

e. The

Proportional Controller

used on M983 model 8001 crane, uses

wire mesh shielding around the controller cover and control levers. Be sure the cover is tightly installed,

and that mesh is not missing from around control levers. The remote controller unit and cable are shielded.

Check that the remote controller cover is secure, that connectors are not broken, and that cable is not

frayed or the covering broken. Check all cables around the control unit to be sure none are frayed or

covering is broken.

f. The radio interference suppression system maybe tested as follows:

(1) Bring a radio-equipped vehicle within 25 ft (8 m) of vehicle to be tested. Shut off engine. Turn

on radio equipment for maximum sensitivity.

Turn on radio equipment in test vehicle, if so equipped.

(3) Start engine of test vehicle and turn on all auxiliary equipment. No increase in background noise

in either the vehicle equipment or the nearby vehicle should be heard.

(4) If noise is heard in radio equipment, turn off auxiliary equipment components one at a time until

noise stops. Or, reverse the order and turn on components until noise starts.

(5) When a component is found which causes radio interference, check carefully for loose electrical

connections, loose mountings, missing tooth-type washers, damaged or broken metal housing.

(6) If interference cannot be eliminated with thorough cleaning and minor repairs, replace the

component.

(7) If radio interference still is present, repeat operation above. More than one component may be

causing interference.

above, notify direct support maintenance

(8) If interference still persists after repeating step

unit.

PLACING IN SERVICE.

When a new or reconditioned vehicle is first received by the using organization, it is necessary to

determine that the vehicle is in satisfactory condition and will operate properly when first placed into

service. The service procedures are as follows:

Visually inspect vehicle upon receipt for obvious damage, such as broken, cracked, dented, or

missing parts. Report any damage, in accordance with DA PAM 738-750.

Refer to

2-1 through 2-6 for the necessary preventive maintenance checks and services,

and lubricate per LO 9-2320-279-12.