Sears 536.9183 - Manual (Page 11)

Figure 17
ROLLER CHAINS | LOWER BELT GUIDES
IMPELLER/AUGER DRIVE PULLEY
To Replace Impeller/Auger Drive Belt {belt farthest from
engine);
1. Remove belt cover (figure 11).
2. Stand unit up on auger end, remove screws from
bottom cover and remove cover.
3. Loosen screws holding lower belt guides (figure 17)
and swing guides away from belt.
4. Roll belt off irnpeller/auger drive pulley and engine
pulley and remove between drive pulleys.
5. Install new belt in reverse order.
6. Move lower belt guides back to within 1/16 inch of
irnpeller/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 assembly is made up of a rightand left 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;
Figure 18
SHEAR BOLT
LEFT AUGER
AUGER GEAR CASE
RIGHT AUGER
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 will 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 link can be installed in the same manner.
Open end of keeper link must be in trailing position when
chain is operating in direction required forforward motion of
unit.
4. Remove master link and remove chain.
5. Install new chain in reverse order of removal.
Figure 19
TRANSMISSION REPLACEMENT
The 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 outonthegroundandpush unitoffthe
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 5VV-30
motor oil 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. N OTE;
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 oil drain cap and drain oil into a
suitable container. NOTE; Oil will drain more freely
when warm.
D. Replace oil drain cap securely and fill crankcase to
proper level shown on dipstick (approximately VA
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.
SHEAR BOLT
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