Servicing; Lubrication - General; Checking Oil; Oil Changes - Northern Lights OM844W3 Operator's Manual

For models: m844w3; m844lw3; m20crw3
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LUBRICATION - GENERAL

1. Use only clean, high quality lubricants stored in
clean containers in a protected area.
2. These lubricants are acceptable:
a. API Service CC/CD/CE single viscosity oils.
b. API Service CC/CD/SF multi-viscosity oils.
3. Use the proper weight oil for your average
operation temperature.
Air
Single
Temperature
Viscosity
Above 32°F
SAE 30W
(0°C)
-10 to 32°F
SAE 10W
(-23 to 0°C)
Below -10°F
SAE 5W
(-23°C)
Figure 4: Lube Oils
4. Some increase in oil consumption may be
expected when SAE 5W and SAE 5-20W oils are
used. Check oil level frequently.
5. Never put additives or fl ushing oil in crankcase.
Figure 5

Servicing

SP1. CHECKING OIL LEVEL
1. Check the oil level in the crankcase with the dipstick
SP2. OIL CHANGES
1. The set is delivered with special break-in oil.
Multi-
Viscosity
2. Change the oil and fi lter again at 100 hours using the
SAE 15-40W
SAE 10-30W
3. During intermittent cold weather operation, change
SAE 5-20W
4. Change oil at the end of each season and the
5. Change oil when engine is warm.
6. Dispose of waste oil in an approved manner.
7. Never use a fl ushing oil.
8. Loosen the clamp on the oil change tube. Remove
9. Refi ll engine with recommended oil for the season.
10. Engine capacity with new oil fi lter is:
SP3. CHANGING LUBE OIL FILTER
1. Change the lube oil fi lter every 250 hours.
2. Use a fi lter wrench to remove old fi lter. Dispose of
3. Make sure the gasket from the old fi lter is removed
4. Spread a thin fi lm of engine oil on the rubber gasket
5. Using hands only – no wrench – tighten fi lter
6. Fill engine with recommended oil. Start engine and
7. Oil fi lter part number is:
Figure 6
OM844W3 5/11
16
. The oil level must be in the waffl ed area
(Fig. 5)
on the stick. Never allow the level to go below this
area. Follow the lubrication recommendations above.
Change the engine oil and oil fi lter after 50 hours
of operation. Use Service CC 30 weight oil during
the fi rst 100 hours.
oil recommended in the above diagram. After this,
change oil and fi lter every 250 hours.
oil every 100 hours or six weeks, whichever comes
fi rst.
beginning of each season.
cap. Drain oil. Replace the cap and tube.
844W3 and 844LW3 – 2.1 gallons
fi lter in approved manner.
and discarded. Clean mount face.
on the new fi lter and screw it on nipple until gasket
meets the sealing surface.
one-half turn farther. Overtightening can do
damage to fi lter housing.
check for leakage. Stop engine, wait 3 minutes, and
check oil level. Add additional oil if necessary.
844W3 and 844LW3 – #24-03100
(8.2 liters)

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