Operation; Preparation For Operation; Water Priming - Yamaha YP20T Manuel D'utilisation

OPERATION

WARNING
Never operate the water pump in a closed area or it
may cause unconsciousness and death within a
short time. Operate the engine in a well ventilated
area.
NOTICE
The water pump has been shipped without engine
oil. Do not start the engine until you have filled it
with the sufficient engine oil.

Preparation for operation

Choose the best location for the water pump to per-
form the pumping job. Place the pump on a flat, level
surface as near as possible to the water to be pumped.
Connect the hoses properly (See page 9).
Pumping performance is affected by various factors
including the length of the hoses and the vertical
height from the water surface to the pump (suction
head) and from the pump to the end of the discharge
hose (discharge head). As the height of the pump from
the water surface increases the time necessary to
prime the pump will increase and the discharge from
the pump will decrease. Do not exceed maximum Total
head and Suction head specifications for your water
pump (See page 30).

Water priming

Before starting the engine, make sure water is at the
pump casing upper level.
Add clean water as necessary.
1
1 Upper level
NOTICE
Be sure the pump is filled up with water before
starting the engine or mechanical seal damage will
occur.
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