Change Engine Oil; Draining The Oil - Sears Craftsman 450 Serie Manual De Uso

Check Engine Oil
1. Check oil before each use. Stop engine and wait several minutes before
checking oil level. With engine on level ground, the oil must be to FULL mark
on dipstick.
2. Refer to the Assembly section of this manual for instructions on checking the
oil.

Change Engine Oil

• Refer to the viscosity chart (Figure 24) for oil recommendations. Do not over-
fill. Use a 4-stroke, or an equivalent high detergent, premium quality motor
oil certified to meet or exceed U.S. automobile manufacturer's requirements
for service classification of a minimum level SF or SG (higher letter ratings
are acceptable such as SJ, SL and SM grades). Motor oil will display this
designation on the container.
NOTE: Do not use non-detergent oil or 2-stroke engine oil. It could shorten
the engine's service life.
• Change engine oil after the first five to eight hours of operation, and every
fifty hours or every season thereafter. Change oil every twenty five hours
when operating engine under heavy load or in high temperatures.

Draining the Oil

Before tipping engine or equipment to drain oil, drain fuel from tank by
running engine until fuel tank is empty.
Used motor oil may cause skin cancer if repeatedly left in contact with the
skin for prolonged periods. Although this is unlikely unless you handle
used oil on a daily basis, it is still advisable to thoroughly wash your hands
with soap and water as soon as possible after handling used oil.
1. Drain the fuel from the tank by running the engine until the fuel tank is
empty. Be sure fuel fill cap is secure.
2. With engine OFF but still warm, disconnect spark plug wire and keep it away
from spark plug.
SERVICE AND MAINTENANCE
Figure 24
WARNING
WARNING
3. Remove oil drain cap located at the end of the oil drain pipe , and drain oil
into an appropriate receptacle. See Figure 25.
Oil Drain Pipe
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.
4. Replace and tighten the oil drain cap.
5. When engine is drained of all oil, place engine level. Refill with
approximately 20 oz. of fresh oil. Fill to FULL line on dipstick. Do not overfill.
Refer to Check and Adding Oil in this manuals Assembly section.
6. Replace spark plug wire before starting.
Transmission Lubrication
The transmission is pre-lubricated and sealed at the factory. It requires no checking
unless the transmission is disassembled. To fill with grease, lay the right half of
the transmission on its side, add 22 ounces of Benalene 920 grease, and assemble
the left half to it. See an authorized Sears Service Center to have the transmission
lubricated or to schedule service, simply contact Sears at 1-888-331-4569.
18
Oil Drain Cap
Figure 25
WARNING