17
MAINTENANCE & SERVICE
2.
Visually inspect the spark plug. Discard the spark plug if there is apparent
wear, or if the insulator is cracked or chipped. Clean the spark plug with a
wire brush if it is to be reused.
NOTE:
An F6RTC spark plug must be used for replacement. For Sears
purchase, visit a Sears Parts & Repair Center or call 1-888-331-4569. Ask for
replacement spark plug 951-10292.
3.
Measure the plug gap with a feeler gauge. Correct as necessary by bending
side electrode. See Figure 14. The gap should be set to 0.020-0.030 inches
(0.60-0.80 mm).
0.020-0.030 in.
(0.60-0.80 mm)
Electrode
Figure 14
4.
Check that the spark plug washer is in good condition and thread the spark
plug in by hand to prevent cross-threading.
5.
After the spark plug is seated, tighten with a spark plug wrench to compress
the washer.
NOTE:
When installing a new spark plug, tighten 1⁄2-turn after the spark plug
seats to compress the washer. When reinstalling a used spark plug, tighten 1⁄8- to
1⁄4-turn after the spark plug seats to compress the washer.
Lubrication
For a view of the lubrication points on the snow thrower, see Figure 15.
1.
Lubricate pivot points on the auger control and drive control with a light
engine oil once a season.
2.
Lubricate the auger idler bracket with a light engine oil once a season.
Figure 15
Wheels
At least once a season, remove both wheels. Clean and coat the axles with a
multipurpose automotive grease before reinstalling wheels.
Auger Shaft
At least once a season, remove the shear pins on auger shaft. Spray any general
purpose lubricant inside shaft, and around the spacers and flange bearings found at
either end of the shaft. See Figure 16.
Figure 16
