Murray 1695722, 1737920 manual Check and Replace Spark Plug, Adjust Skid Height, Maintenance

MAINTENANCE

Check and Replace Spark Plug

Check the spark plug every twenty-five (25) hours. Replace the spark plug (Figure 22) if the electrodes are pitted or burned or if the porcelain is cracked.

1.Remove snow hood (see “Remove the Snow Hood” section).

2.Clean spark plug and reset gap periodically.

3.Clean area around spark plug base before removal, to prevent dirt from entering engine.

4.Replace spark plug if electrodes are pitted or burned or if porcelain is cracked.

5.Clean spark plug by carefully scraping electrodes (do not sandblast or use wire brush).

6.Be sure spark plug is clean and free of foreign material. Check elec- trodes gap with a wire feeler gauge and reset gap to 0.030" (0.76 mm) if necessary.

7.Before installing spark plug, coat threads lightly with graphite grease to insure easy removal.

8.Tighten plug firmly into engine. If torque wrench is available, tighten plug to 18-23 ft-lbs (24.4-31.2 Nm).

	.030 in.
	(.76 mm)
Replacing Spark Plug	Figure 22

WARNING: Always turn unit off, remove ignition key, and disconnect the spark plug wire before making any repairs or adjustments.

ADJUST SKID HEIGHT

This snow thrower is equipped with two height adjust skids, secured to the outside of the auger housing. These elevate the front of the snow thrower.

When removing snow from a hard surface area such as a paved driveway or walk, adjust the skids up to bring the front of the snow thrower down.

When removing snow from rock or uneven construction, raise the front of the snow thrower by moving the skids down. This will help to prevent rocks and other debris from being picked up and thrown by the augers.

To adjust skids, proceed as follows:

1.Place a block (equal to height from ground desired) under scraper bar near but not under skid.

2.Loosen skid mounting nuts (A, Figure 23) and push the skid down

(B) until it touches the ground. Retighten mounting nuts.

3.Set skid on other side at same height.

NOTE: Make sure that snow thrower is set at same height on both sides.

WARNING: Be certain to maintain proper ground clearance for your particular area to be cleared. Objects such as gravel, rocks, or other debris, if struck by the impeller, may be thrown with sufficient force to cause personal injury, property damage, or damage to the snow thrower.

A

B

Adjusting Skid Height Figure 23

22