55
SERVICE & MAINTENANCE
Water leak check
1. Connect one end of the suction hose to the suction port,
put the other end of the hose in water, and then close
the discharge valve handle
2. Start the engine, and lift the priming lever to run the
vacuum pump.
3. Operate the throttle dial to raise the pump pressure
almost to 1MPa (145 psi), and then check for water leaks
from each part of the pump and the cooling water piping.
If a vacuum leak is found, isolate the cause by referring to
the “15 TROUBLESHOOTING”. Then, take the
appropriate action and check the water leak again.
14
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