Craftsman C459-52306 Operator's Manual page 16

Used oil is a hazardous waste product. Dispose of used oil properly. Do not
discard with household waste. Check with your local authorities or Sears
Service Center for safe disposal/recycling facilities.
5. Reinstall the drain plug and tighten it securely.
6. Refill with the recommended oil and check the oil level. See Recommended
Oil Usage chart. The engine's oil capacity is 20 ounces.
-40º -20º
-30º -20º -10º 0º
DO NOT use non-detergent oil or 2-stroke engine oil. It could shorten the
engine's service life.
7. Reinstall the oil filler cap/dipstick securely.
Thoroughly wash your hands with soap and water as soon as
possible after handling used oil.
Checking Spark Plug
DO NOT check for spark with spark plug removed. DO NOT crank engine with
spark plug removed.
If the engine has been running, the muffler will be very hot. Be careful not to
touch the muffler.
NOTE: Check the spark plug once a season or every 25 hours of operation. Change
the spark plug once a season or every 100 hours.
To ensure proper engine operation, the spark plug must be properly gapped and
free of deposits.
1. Remove the spark plug boot and use a spark plug wrench to remove the
plug. See Figure 13.
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.
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 .02-.03 inches (0.60-
0.80 mm).
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.
MAINTENANCE & SERVICE
CAUTION
Synthetic
0W-30
5W-30
0º 20º 40º
CAUTION
CAUTION
WARNING
WARNING
Oil Drain
Plug
Electrode
.02-.03 in.
(0.60-0.80 mm)
16
Figure 12
Spark Plug
Spark Plug Boot
Figure 13
Figure 14