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MAINTENANCE
18
• Use low pressure air (not to exceed 25 psi) to blow away
dirt. Inspect cooling air slots and opening on water pump.
These openings must be kept clean and unobstructed.
Remove silt and sludge buildup in pump body:
• Open priming plug and remove drain plug.
• Flush internal components of pump with clean water.
Oil
Oil Recommendations
NOTE: When adding oil to the engine crankcase, use only
high quality detergent oil rated with API service
classification SF, SG, SH, SJ or higher. DO NOT use special
additives.
1. Choose a viscosity according to the table below:
* The use of multi-viscosity oils (5W-30, 10W-30, etc.) in
temperatures above 40°F (4°C) will result in higher than
normal oil consumption.When using a multi-viscosity oil,
check oil more frequently.
** The use of SAE 30 oil in temperatures below 40°F (4°C)
will result in hard starting and possible engine bore damage
due to inadequate lubrication.
NOTE: Synthetic oil meeting ILSAC GF-2,API certification
mark and API service symbol with “SJ/CF ENERGY
CONSERVING” or higher, is an acceptable oil at all
temperatures. Use of synthetic oil does not alter required
oil change intervals.
Checking Oil Level
Oil level should be checked prior to each use or at least
every 8 hours of operation. Keep oil level maintained.
1. Make sure unit is on a level surface.
2. Remove oil fill cap and wipe clean with cloth.
3. Verify oil is at the point of overflowing at oil fill
opening.
Adding Engine Oil
1. Make sure unit is on a level surface.
2. Check oil level as described in “Checking Oil Level”.
3. If needed, slowly pour oil into oil fill opening to the
point of overflowing at oil fill cap.
Changing Engine Oil
Change the oil after the first 5 hours of operation. Change
oil every 50 hours thereafter. If you are using your water
pump under extremely dirty or dusty conditions, or in
extremely hot weather, change the oil more often.
KEEP OUT OF REACH OF CHILDREN. DON'T
POLLUTE. CONSERVE RESOURCES. RETURN
USED OIL TO COLLECTION CENTERS.
Change the oil while the engine is still warm from running,
as follows:
1. Make sure unit is on a level surface.
2. Disconnect the spark plug wire from the spark plug
and place the wire where it cannot contact spark plug.
• Used motor oil has been shown to cause skin cancer in
certain laboratory animals.
• Thoroughly wash exposed areas with soap and water.
Avoid prolonged or repeated skin contact with used
motor oil.
CAUTION
WHEN ADJUSTING OR MAKING REPAIRS TO YOUR
WATER PUMP
• Disconnect the spark plug wire from the spark plug and place
the wire where it cannot contact spark plug.
WHEN TESTING FOR ENGINE SPARK
• Use approved spark plug tester.
• DO NOT check for spark with spark plug removed.
Unintentional sparking can result in fire or
electric shock.
WARNING
Synthetic 5W-30, 10W-30
5W-30,10W-30
30
°F -20 0 20 32 40 60 80 100
°C -30 -20 -10 0 10 20 30 40
STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE