Sears 536.9183 Snow Chain Removal, Lubrication, Shear Bolt Replacement, Roller Chain Replacement

SNOW CHAIN UNIT DRIVE PULLEY

ROLLER CHAINS LOWER BELT GUIDES

IMPELLER/AUGER DRIVE PULLEY

To Replace Impeller/Auger Drive Belt {belt farthest from engine):

!.Remove belt cover (figure 1 !).

2, Stand unit up on auger end, remove screws from bottom cover and remove cover.

3.Loosen screws holding lower belt guides (figure t7) and swing guides away from belt.

4.Roll belt off impeller/auger drive pulley and engine pulley and remove between drive pulleys.

5.Install new belt in reverse order.

6.Move lower beJt guides back to within 1/16 inch of

Impeller/auger drive pulley and tighten screws.

7.Replace bottom cover and return unit to operating position.

8.Adjust right and left belt guides (figure 12) as instructed

in Step 3 in paragraph Drive Belt Adjustment in

Adjustment section of this manual.

9. Replace belt cover.

SHEAR BOLT REPLACEMENT

The main auger assembty is made up of a right and Teft auger. Each is secured with a special bolt (figure 18) that acts as a shear bolt. These bolts are designed to break if an object becomes lodged in the auger. Three spare shear bolts and

nuts have been furnished with your unit. If additional bolts

are required, order genuine replacement bolts. Use of a

harder bolt will destroy the protection provided by this

special bolt. To replace a broken shear bolt, proceed as follows:

sHEAR BOLT

LEFT AUGER

AUGER GEAR CASE

RIGHT AUGER

SHEAR BOLT

1.Remove the parts of the broken bolt.

2.Align the hole in the auger with the hole in the auger shaft. Install new shear bolt.

ROLLER CHAIN REPLACEMENT

There are two roller chains on this unit as shown in figure

17.Bottom cover witI have to be removed to reach chains.

1.Stand unit up on auger end, remove screws from bottom cover and remove cover.

2.Locate master link (figure 19) in chain to be replaced.

3.Check position of open end of keeper link (figure 19) so

that replacement Iink can be installed in the same manner. Open end of keeper link must be in trailing position when chain is operating in direction required for forward motion of unit.

4.Remove master link and remove chain.

5.Install new chain in reverse order of removal.

KEEPER LINK

(Open end must trail)

DIRECTION OF TRAVEL MASTER LINK

TRANSMISSION REPLACEMENT

Tile replacement of the transmission on this unit is a major

service operation and should be done by a trained

technician. The Transmission Repair Parts section of this

manual contains a list of replacement parts and illustrations

to assist the trained technician in making repairs and

ordering proper replacement parts.

SNOW CHAIN REMOVAL

To remove the snow chains, release the chain hooks (figure 17). Flatten the chain out on the ground and push unit off the

chain. Illustration is the reverse of removal,

LUBRICATION

For lubrication points, frequency of lubrication and type of

lubricant, see Lubrication Chart.

1.Check crankcase oil level before starting engine and

after each 5 hours of continuous use. Add SEARS 5W-30

motor oif or equivalent as required. Change crankcase oil

after first 2 hours of operation and every 25 hours of

operation thereafter, or at beginning of each season. NOTE:

SEARS 5W-30 or 10W motor oil (or equivalent) are

acceptable substitutes.

To Drain Oil, Proceed as Follows:

A. Remove oil fill cap and dipstick (figure 20).

B° Remove oil drain cap (figure 20).

C. Tip unit toward oit drain cap and drain oil into a

suitable container. NOTE: OiI will drain more freely when warm.

D. Replace oil drain cap securely and fill crankcase to

proper level shown on dipstick (approximately 11,/2 pints).

2.Check auger gear case oil level before each use by

removing oil level plug as shown in Lubrication Chart, Oil should be visible in hole. If oil is required, remove oil fill plug and add SEARS SAE 30 engine oil until oil begins to run out oil level hole. Replace plug and tighten securely.

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