Koshin STV-X Serie Manuel D'utilisation page 11

SOLUTION
Remove obstacle in impeller.
(Do not remove impeller.)
SOLUTION
Check suction pipe.
In case of no suction or small delivery,
the cause is usually due to air leakage at
suction side.
In such case :
Remove suction hose
Start engine with water inside the pump.
Press the palm of your hand to cover
the suction hole and wait 30 seconds.
If you feel suction on your palm, the
pump is wor king fine but hose
connection needs correction.
Please check if rubber packing is
installed and if there is any hole on
suction hose
SOLUTION
Confirm spark plug
if wet or stained.
Please clean plug with cloth if
spark plug is wet or stained.
• New spark plug may be required, if engine cannot start even after you clean plug
or adjust gap of plug.
CAUTION
N O T E
In case of water leakage between engine and pump,
usually the cause is damaged mechanical seal.
Please ask shop for assistance and replace mechanical seal.
For check assistance and repair, please ask your nearest sales
CAUTION
store for after sales service.
Pump case
There are many different types of spark plugs. Please check
and select correct plugs according to Engine Operation Manual.
①
③
Whether suction
or not
④
Holes on hole
Confirm gap
between spark plug.
Plug gap should be 0.6~0.7mm.
Adjust gap to be within this range.
- 9 -
Impeller
Volute casing
②
Recoil
Flat hose Suction hose
(not bent hose)
Confirm installing
packing!
EN