Harley M6 - CHAIN, SPROCKET, AND MOTOR MAINTENANCE; BEARING MAINTENANCE AND CARE

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20 MODEL M6

CHAIN MAINTENANCE

The drive chain should be inspected monthly. New chain has a tendency to stretch, so it is

necessary to check in the chain tension to prevent opping around, thus causing potential

problems.

Chain tension is preset with the extension spring. If the chain becomes excessively loose, it

may be necessary to remove one link (two pitches). If unable to reassemble, add an offset link

to lengthen the chain.

Replacement chain should be only high quality original equipment

chain for longer life.

When being stored for a long period or at end of season, change the oil, adding #00 uid gear

grease, and rotate the roller several times allowing the chain to be coated with lubricant, en-

hancing chain life. Rotate the roller periodically to maintain lubrication. In order to rotate the

roller and chain you must connect the two hydraulic hoses together.

SPROCKETS

Sprockets should be checked to be sure slotted hex nut or hex bolt is tight, the cotter pin is in

place, and the sprocket cannot move on shaft.

QUALIFIED TECHNICIAN MAINTENANCE

HYDRAULIC MOTOR

Removal

Remove chain from top sprocket. Then remove top sprocket by removing the hex bolt and

washers.

Reassemble

Apply a liberal amount of silicone sealer to inside of ange. Attach hydraulic motor to chain

case with four bolts and ange nuts. Replace shaft collar. Slide top sprocket (sprocket teeth

rst) onto shaft. Use machine bushings on the inside or outside of sprocket for proper align-

ment.

BEARINGS

Highest quality bearings are used on the power rake. Only triple-seal bearings are used on the

roller which operates down in the dirt. Lubrication of the bearings will vary considerably with

conditions. As a rule, bearings should be under-lubricated rather than over-lubricated. Over

lubrication can cause seals to blow out.

Replacement bearings should be only high quality original equipment

bearings for longer life.

Install new complete bearing housing if needed or just replace the bearing insert. The shafts

should be straight, free of burrs, and up to size. If shaft is worn, replace or have the shaft built

up to standard prior to completing assembly.

NOTICE

MAINTENANCE