Craftsman 247.88704 Manual Del Operador página 15

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.
CaUtion
The spark plug must be tightened securely. A loose spark plug can
become very hot and can damage the engine.
Cleaning the engine
If the engine has been running, allow it to cool for at least half an hour
before cleaning. Periodically remove dirt build-up from engine.
CaUtion
Do not spray the engine with water to clean it because the water
could contaminate the fuel. Using a garden hose or pressure washing
equipment can also force water into the muffler opening. Water that
passes through the muffler can enter the cylinder and cause damage.
Warning
Accumulation of debris around the muffler could cause a fire. Inspect
and clean before every use.
LUbriCation
Lubricate the pivot points on the control handle and the extension
spring at the end of the control cable with a light oil once every season
and before the snow thrower is put into storage at the end of the
season.
adjUstments
shave Plate
To check the adjustment of the shave plate, place the machine on a
level surface. The wheels, shave plate and augers should all contact
the level surface. Note that if the shave plate is adjusted too high,
snow may blow under the auger housing. If the shave plate wears out
excessively, or the snow thrower does not self-propel, the shave plate
may be too low and needs to be adjusted.
NOTE: On new snow throwers or machines with a new shave plate
installed, the augers may be slightly off the ground.
To adjust the shave plate proceed as follows:
1. Drain the gas from the snow thrower.
2. Pull the starter cord until resistance is felt. Then tip the snow
thrower back until it rests on the handles.
SERVICE AND MAINTENANCE
3. Loosen the four lock nuts and bolts which secure the shave
plate to the housing. See Figure 16. Move the shave plate to the
desired position and retighten the nuts and bolts securely.
4. Tip the snow thrower back to the operating position and pull the starter
handle a few times to see if it is difficult to pull.
5. If the starter is difficult to pull, remove the spark plug and pull the
handle several times to ensure that any oil trapped in the head is
removed.
Oil may come out of the spark plug hole when it is removed and the
starter handle is pulled.
6. Inspect the spark plug. If it is wet, clean off any oil before
re-installing.
15
Side View
Bolt
Lock Nut
Figure 16
CaUtion