Water Pump Maintenance: 6-2
Do not turn the drive shaft while the oil reservoir is empty. This can cause
component failure.
Protect the pump from freezing. Failure to do so can result in component failure
which will void warranty coverage (see section 12).
PERIODIC MAINTENANCE
Change the oil after the rst 50 hours of operation, with the pump stopped and the oil still
warm, and after every 300 operating hours or 3 months of operation. When changing the
oil, remove the drain plug on the oil drain hose so all oil and accumulated sediment will
drain out.
The initial oil change is recommended for no other reason than to eliminate impurities that
may be in the oil during the running-in phase. If these impurities are not removed, but are
allowed to remain in the oil, they may cause premature wear to the moving parts and the
oil seals.
If the pump works in conditions with high humidity and with sharp temperature
changes, condensation may appear inside the crankcase. Condensation mixing
with the oil can change the oil’s properties, which is easy to detect because the
oil changes to a white, milky color.
If the pump does not have excessive water leaking from the packings, and the oil
becomes milky, the oil has to be changed more frequently.
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