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G E N E R A L M A I N T E N A N C E
Swing Shaft Assembly
Swing Cylinders
Base End 90° Zerk Required 2 (1 ea. side)
Rod End St. Zerk Required 2 (1 ea. side)
Swing Shaft
Lower Bearing 90° Zerk Required 1
Upper Bearing St. Zerk Required 1
Anchor Lug 90° Zerk Required 1
Stabilizer Assembly
Stabilizer Cylinders
Base End 90° Zerk Required 2 (1 ea. side)
Rod End St. Zerk Required 2 (1 ea. side)
BOOM Assembly
Boom
Swing shaft End St. Zerk Required 1
Dipper End St. Zerk Required 1
Boom Cylinder
Rod End St. Zerk Required 1
Crowd Cylinder
Base End St. Zerk Required 1
Rod End St. Zerk Required 1
Dipper Assembly
Bucket Cylinder
Base End 90° Zerk Required 1
Bucket Link
Cylinder End 90° Zerk Required 1
Bucket End 90° Zerk Required 1
Dipper Arm
Toggle Link St. Zerk Required 1
Bucket Pin St. Zerk Required 1
MD8 BACKHOE
LUBRICATION FITTNGS
IT SHOULD BE STRESSED THAT NO AMOUNT OF DESIGN PRECAUTIONS CAN PREVENT RAPID COMPONENT
WEAR WHERE THESE COMPONENTS ARE UNDER STRESSES SUCH AS THOSE ENCOUNTERED ON A
BACKHOE. THE ONLY PREVANTIVE AGAINST SUCH WEAR IS GREASE AND NO ONE CAN APPLY THAT
BUT YOU.
B. Make a thorough check (Prior to start of work each day) for obvious signs of wear, leakage, loose fitting / pins, etc.
Careful, routine visual checks can provide valuable forewarning of impending failures allowing sufficient time to
acquire replacement parts and thus reducing down time to a minimum.
EVERY 40 HOURS OF OPERATION
A. Check hydraulic reservoir fluid level. If oil is low, check all lines, fittings, and control valve for signs of leakage.
Refill in accordance with tractor owner’s manual.
NOTE: HYDRAULIC FLUID LEVEL SHOULD BE CHECKED WITH BACKHOE AND LOADER IN
TRANSPORT POSITION.
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