Craftsman 31AS2S5D799 Operator's Manual page 14

2. Remove the three screws that secure the lower panel. Remove the lower
panel by lifting up on the panel to free the tabs at the bottom of the panel
from the tab slots and then pull back. See Figure 13.
NOTE: The bottom of the panel has tabs that help hold it in place.
NOTE: An oil drain extension kit is available separately. Contact a Sears Parts
and Repair Center for kit #753-06684.
3. Place a suitable oil collection container under the oil drain plug.
4. Remove the oil drain plug, see Figure 14.
Oil Drain Plug
5. Tip the snow thrower back to drain oil into the container. Used oil must be
disposed of at a proper collection center.
6. Reinstall the drain plug and tighten it securely.
7. Refill with the recommended oil and check the oil level; refer to Checking
and Adding Oil in the Assembly Section.
8. Reinstall the oil filler cap/dipstick securely.
9. Re-install the lower panel by placing the tabs in the tab slots, lifting the
panel into place and secure with the three screws removed in step 2.
SERVICE AND MAINTENANCE
Figure 13
Figure 14
Spark Plug
DO NOT check for a spark with the spark plug removed. DO NOT crank the
engine with the spark plug removed.
If the engine has been running, the muffler will be very hot. Be careful not
to touch the muffler.
The spark plug should be checked every 25 hours and changed once a season or
every 100 hours. To ensure proper engine operation, the spark plug must also be
properly gapped and free of deposits.
1. Remove the lower panel as instructed in the Changing Engine Oil section.
Refer to Figure 13.
2. Remove the spark plug boot and use a spark plug wrench to remove the
plug, see Figure 15.
3. Visually inspect the spark plug. Discard the spark plug if there is any
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: A resistor spark plug must be used for replacement. Contact a Sears
Parts and Repair Center for a replacement spark plug (Part # 951-10292).
4. Re-install the lower panel.
14
WARNING
WARNING
Spark Plug
Spark Plug Boot
Figure 15