Davey 4 Floodfighter Pumps - Manual (Page 4)

PUMP OPERATION:
High performance can be obtained from these pumps if the engine speed is
increased, however, we do not recommend the pumps be operated over 3600rpm
for extended periods, as this may overload the engine and reduce its working
life. Operating the engine at full throttle for extended periods will shorten engine
life and may result in premature failure. For operations such as irrigation or dam
and tank filling, the throttle should be closed to around 3/4 maximum. This should
correspond to around 3000rpm maximum.
AvOIDINg PUMP DAMAgE:
Pumping water containing sand, dirt or other abrasive materials will result in
accelerated pump wear and seal failure. Damage of this kind is not covered by
guarantee.
Pumping water containing chemicals or high concentrations of salt may damage
pump components. If the pump is used for this kind of service, life will be
extended by always washing thoroughly with clean water after use. However,
Davey cannot accept responsibility for damage caused by chemicals, salt or
corrosive fluids.
Pumping hydrocarbon based liquids, even in diluted form, is likely to cause
damage to internal pump components and such failure is not covered by
guarantee.
ENgINE OIL
The use of good quality, correctly rated engine oil is very important to the long
term dependability of your engine, especially when you need it most. Check the
manufacturer’s recommendations for the correct grade of oil and stick to their
recommendations. Do not use a synthetic, multigrade motor vehicle oil in your
small engine, it simply is the wrong oil for this type of engine.
Diesel engines require specific oils designed for diesel, and the diesel engine on
your pump will need a different oil to that used for truck or motor vehicle engines.
Honda and Yanmar offer their own branded specialty oils to suit their engines
best, but no matter who makes the oil, use the right grades and stick to trusted
brands.
Davey include a label with every engine to advise of the correct oil to use, which are:
• Honda: SAE 10W-30 mineral oil. For extreme conditions alternate oil grade
may be appropriate – check manual.
• Yanmar: MONOGRADE SAE 30, API- CC or CD mineral oil. For extreme
temperatures SAE 40 may be necessary.
Running the engine regularly will help ensure the oil is distributed around the
engine, thus providing the best lubrication and longer engine life.
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