Product manual

Page 10 For technical questions, please call 1-888-866-5797. ITEM 69774
SAFETY SETUP OPERATION MAINTENANCE
Operation
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.
Prime the Pump
Before starting the engine, fill the
Pump with water. To do this:
1. Unthread the Priming Water Filler Cap
by turning it counterclockwise.
2. Fill the unit with clean water up to the
top of the opening. Replace the Priming
Water Filler Cap and tighten securely.
IMPORTANT! Always check for water in the Pump
Housing before each use. Never attempt to run the
Water Pump without the Pump Housing FULL of
water. Running the Water Pump without water
for an extended period of time will damage
the Water Pump and void the Warranty.
Priming Water
Filler Cap
Checking and Filling Engine Oil
CAUTION! Your Warranty is VOID if the engine’s
crankcase is not properly filled with oil before
each use. Before each use, check the oil level.
Do not run the engine with low or no engine oil.
Running the engine with no or low engine oil
WILL permanently damage the engine.
1. Make sure the engine is stopped and is level.
2. Close the Fuel Valve.
3. Clean the top of the Dipstick and the
area around it. Remove the Dipstick
by threading it counterclockwise, and
wipe it off with a clean lint free rag.
4.
Full level
Full level
Reinsert the Dipstick without threading it in and
remove it to check the oil level. The oil level
should be up to the full level as shown above.
5. If the oil level is at or below the low mark add the
appropriate type of oil until the oil level is at the
proper level. SAE 10W-30 oil is recommended
for general use. (The SAE Viscosity Grade chart
on page 14 in the Service section shows other
viscosities to use in different average temperatures.)
6. Thread the dipstick back in clockwise.
CAUTION! Do not run the engine with too little oil.
The engine will be permanently damaged.
5. Route the discharge hose to the desired discharge
location. If necessary, connect additional discharge
hoses to direct the discharge to the desired location.
Make sure to secure the discharge hose in place
to keep it from moving once the Water Pump is
turned on. The discharge hose should be kept as
short as possible for more efficient operation.
Operation Concerns
1. CAVITATION: This is the sudden formation
and collapse of low-pressure vapor (bubbles)
across the vanes of the impeller.
Cause: When the surface pressure on a liquid
becomes low enough, the liquid will begin to boil
(even at room temperature). With centrifugal
pumps, cavitation can occur when the suction
vacuum becomes too great, allowing water vapor
or bubbles to form at the impeller. The rapid
pressure increase can cause impeller damage.
Solution: Minimizing suction head and using
the largest practical suction hose diameter will
reduce the likelihood of cavitation. Do not use
a suction hose with a diameter smaller than
the Pump’s Intake Port (2″ diameter).
2. WATER HAMMER PRESSURE: This is
energy sent back to the Pump due to sudden
stoppage of water flowing from the Pump.
Cause: Water hammer pressure is more likely
to occur when using a very long discharge
hose. If the flow of water at the end of the
discharge hose is shut off suddenly, energy
is sent back to the pump. This causes a large
pressure spike in the Pump housing, leading
to potential damage to the Pump casing
Solution: Use as short a discharge
hose as possible and turn off water
pump before closing water flow.