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21
SERVICE AND MAINTENANCE
Reposition the friction wheel assembly in the snow thrower frame.
Insert the pin from the shift arm assembly into the friction wheel
assembly and hold assembly in position. Refer to Figure 33.
Slide the hex shaft through the right side of the frame toward the
left side and through the friction wheel assembly.
After making certain that the chain is on both the large and the
small sprocket, align the hex shaft with the hex hub of the small
sprocket, and slide the shaft through the sprocket.
NOTE: If the sprocket fell from the snow thrower while removing the
hex shaft, place the sprocket on the chain. Realign the sprocket on the
chain with the hex hub facing the right side of unit. Position the hex
hub of the sprocket toward the friction wheel when sliding the sprocket
on to the hex shaft.
12. Slide the spacer onto the end of the hex shaft.
13. Align the bearing on the right end of the hex shaft with the hole
in the right side of the frame, then push the hex shaft to the left
into position in the frame.
14. Slide the bearing onto the left end of the hex shaft and press into
the hole on the left side the frame.
15. Place the belleville washer (rounded side toward head) onto the
hex screw removed earlier, and insert the screw into the threaded
hole of the hex shaft.
16. Gradually tighten the hex screw to fully seat the bearings in each
side of the frame and to secure the hex shaft.
9.
10.
11.
Figure 33
Interval Item Service Service Log
Each Use Engine oil level
Loose or missing hardware
Unit and engine.
1.
2.
3.
Check
Tighten or replace
Clean
1.
2.
3.
1st 5 - 8 hours Engine oil1. Change1.
25 hours Engine oil†
Air cleaner
Control linkages and pivots
1.
2.
3.
Change
Clean or replace
Lube with light oil
1.
2.
3.
50 hours Engine oil1. Change1.
Annually or 100 hours Spark plug1. Clean, replace, re-gap1.
Before Storage Fuel system1. Run engine until it stops from lack of
fuel or add a gasoline additive to the
gas in the tank.
1.
† Under heavy load or in high temperatures
WARNING
Before performing any type of maintenance/service, disengage all
controls and stop the engine. Wait until all moving parts have come to
a complete stop. Disconnect spark plug wire and ground it against the
engine to prevent unintended starting. Always wear safety glasses during
operation or while performing any adjustments or repairs.
Follow the maintenance schedule given below. This chart describes
service guidelines only. Use the Service Log column to keep track of
completed maintenance tasks. To locate the nearest Sears Service
Center or to schedule service, simply contact Sears at
1-800-4-MY-HOME®.
MAINTENANCE SCHEDULE
17. Position the frame cover on the bottom of the frame and secure
with the self-tapping screws. Pivot the snow thrower down to it
normal operating position.
NOTE: If you placed plastic film under the gas cap, be certain to
remove it.