Engine & Pump - Troubleshooting - Goldacres Batchmate Operator's & Parts Manual

Hydraulic Shock
If the water flow is suddenly terminated by
closing a valve, without stopping the pump
first, it can cause hydraulic shock. This can
travel back to the pump causing serious
damage. To prevent pump damage install a
by-pass or safety relief valve.
Cavitation
Your pump is cavitating if knocking noises and
vibrations can be heard when it is operating. If
you continue to operate your pump when it is
cavitating, it will be damaged.
How to avoid cavitation
• Minimise the number of valves and bends
in suction line
• Suction length should be as short as
possible
• Suction pipe should be at least the same
diameter as the pump inlet connection
• Use long radius bends
• Do not allow air into the suction line
• Ensure adequate submergence, at least
Engine & Pump - Troubleshooting
SYMPTOM
Pump does not take
on water.
POSSIBLE PROBLEM
Not enough priming water in the
housing?
Engine speed too low?
Strainer plugged?
Suction hose damaged?
Air leak at suction port?
Pump is located too high above
water line?
Debris collecting in pump
housing?
Too much distance between
impeller and volute.
Water leaking out weep hole
between pump and engine?
Suction lift or discharge head too
high.
5.3 times the suction hose diameter
Handy service hints
1. To maximize pump life, drain pump after
use and flush out with clean, fresh water.
2. Read engine manufacturer's owner's
manual thoroughly and service as
recommended.
3. Store pump in a dry, safe location when
not in use.
4. If storing for long periods, drain fuel from
engine and tank.
5. Aussie Quik Prime pumps are specifically
designed to pump water. Pumping other
liquids may shorten life and impact on
warranty.
6. Pumping water containing solids will
prematurely wear pump components, and
may impact warranty.
7. Ensure that the correct size strainer is
installed on the suction hose at all times,
even on trash pumps.
SOLUTION
Add water
Increase throttle
Clean strainer
Replace or repair hose & clamps
Check that fittings are tight & sealed
Move pump closer to water
Clean pump housing
Adjust clearance by adding shims or
replace impeller. Min. .010" -Max. .020
Check condition of mechanical seal
& gaskets, between pump end and
engine housing
Check hose/pipe installation
9