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QP4TH TRASH PUMP • OPERATION AND PARTS MANUAL — REV. #3 (01/29/14) — PAGE 19
OPERATION
Figure 13. Choke Lever (Open)
8. Before the pump is placed in to operation, run the
engine for several minutes. Check for fuel leaks, and
noises that would associate with a lose component.
9. To begin pumping, place the throttle lever (See
Figure 13) in the RUN position. If water is not flowing
out of the discharge port, turn off the engine and check
for and clear any obstructions within the suction hose.
Figure 14. Throttle Lever (Run)
WARNING
Water must always be flowing through the pump casing
while the engine is running. Loss of flow may be the
result of a loss of prime, restricted water flow or a dead-
head situation. Please note that in such a condition,
water in the pump can reach temperatures of 150-200°F
in 15 to 20 minutes. This can cause serious burns if
this hot water comes into contact with unprotected skin.
Before touching or opening the fill plug or drain plug,
first turn off the engine and allow the pump casing to
cool to the touch, and then open the pump carefully.
Be cautious of any built up water pressure.
CAUTION
ALWAYS run engine at full speed while pumping.
STOPPING THE ENGINE
Normal Shutdown
1. Move the throttle lever to the IDLE position
(See Figure 14) and run the engine for three minutes
at low speed.
Figure 15. Throttle Lever (Idle)
2. After the engine cools, turn the engine ON/OFF switch
to the OFF position (See Figure 15).
Figure 16. Engine ON/OFF Switch (OFF)
3. Place the fuel shut-off lever (See Figure 16) in the
OFF position
Figure 17. Fuel Valve Lever (OFF)
Emergency Shutdown
1. Move the throttle lever quickly to the IDLE position, and
place the engine ON/OFF switch in the OFF position.