BOOM WEAR PADS (M1084/M1086/M1089) - TM-9-2320-366-20-31247

TM 9-2320-366-20-3

23. BOOM WEAR PADS (M1084/M1086/M1089). Lubricate every 6,000 miles (9,654 km) or once every six months,

whichever occurs first. Coat boom wear pads with GAA while boom is extended, for the lower wear pads, boom must be

retracted and access cover removed at rear of base boom to grease the upper wear pads. Extend boom in and out while

applying grease. This method assures full lubrication for entire length of boom. If operating conditions are severe or

abnormal, service at 1,000 miles (1,609 km) or once every month, whichever occurs first.

24. HOIST ASSEMBLY DRUM (M1084/M1086/M1089). Check hoist assembly drum oil level every 6,000 miles (9,654

km) or every six months, whichever occurs first. Check oil level in hoist assembly drum using two pipe plugs (90

degrees apart) on the drum housing. Operate hoist assembly drum so that one pipe plug is positioned at top of drum (fill

point) and the other is accessible and level with ground (check level point). Oil level is full if a small quantity of oil runs

from check level opening. If oil level is low, add oil at fill opening. to drain, operate drum so that one pipe plug is bottom

of drum. Remove plug to drain. Drain and refill with GO specified for the ambient temperature, if oil becomes

contaminated.

25. SWING DRIVE GEARBOX (M1084/M1086/M1089). Check swing drive gearbox oil level every 6,000 miles (9,654

km) or once every six months, whichever occurs first. Oil level is checked by removing pipe plug located on side of gear

reducer. Oil level is full if a small quantity of oil runs out of opening. Add oil at fill point if necessary. Notify Direct

Support to drain and refill with GO specified for the ambient temperature, if oil becomes contaminated.

26. RING GEAR TEETH and PINION GEAR TEETH (M1084/M1086/M1089). Lubricate every 6,000 miles (9,654 km),

after washing, or once every six months, whichever occurs first. Apply a light coat of GAA to ring gear teeth and pinion

gear teeth. Operate MHC (TM 9-2320-366-10) to rotate turntable. This will allow grease to be applied to all gear teeth. If

operating conditions are severe or abnormal, service at 1,000 miles (1,609 km) or once every month, whichever occurs

first.

27. FRONT, INTERMEDIATE, and REAR AXLE INNER WHEEL BEARINGS. Repack inner wheel bearings with GAA

every 12,000 miles (19,308 km), when semiannual PMCS inspection of service brakes reveals oil leak from inner

hub, or whenever wheel end assemblies are taken apart for other maintenance (para 10-2).

28. REAR AXLE BOGIE. Change oil every 6,000 miles (9,654 km) or once every six months, whichever occurs first.

Remove six screws and rear axle bogie cover from one side at a time. Raise axle on opposite side of vehicle to allow oil

to drain out. Lower axle and repeat on other side of vehicle. Apply thin bead of silicone adhesive sealant 593 to seating

surface of housing. Position cover (with fill plug at the 1 o'clock position) and six screws on housing. Tighten six

screws to 24 lb-ft (32 N m). Remove plug from cover and plug from top of rear axle bogie housing. Refill rear axle bogie

with GO specified for the ambient temperature, until level with port on housing cover. Install plugs in cover and housing.

29. 15K SELF-RECOVERY WINCH (SRW) CABLE ROLLER FAIRLEADS. Lubricate with GAA every 6,000 miles

(9,654 km) or once every six months, whichever occurs first, using a low pressure lubrication gun. If operating

conditions are severe or abnormal, service at 1,000 miles (1,609 km) or once every month, whichever occurs first.

30. 30K WINCH CABLE GUIDE ROLLERS and PAY-OUT LOWER TENSION SHEAVE. Lubricate with GAA every

6,000 miles (9,654 km) or once every six months, whichever occurs first, using a low pressure lubrication gun. If

operating conditions are severe or abnormal, service at 1,000 miles (1,609 km) or once every month, whichever occurs

first.

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