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MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 19
MQ-D2H/D3H —OPERATION
8. Before the pump is placed into 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 (Figure 16) in the
"RUN" position.
Figure 15. Choke Lever (Open)
Figure 16. Throttle Lever (Run)
Stopping The Engine
Normal Shutdown
1. Move the throttle lever to the IDLE position (Figure 17) and
run the engine for three minutes at low speed.
Figure 17. Throttle Lever (Idle)
2. After the engine
cools
, turn the engine ON/OFF switch to the
“OFF” position (Figure 18).
3. Place the
fuel shut-off lever
(Figure 19) in the ”OFF”
position.
Figure 18. Engine ON/OFF Switch (OFF)
Figure 19. Fuel Valve Lever (OFF)
Emergency Showdown
1. Move the throttle lever quickly to the
“
IDLE
”
position, and
place the engine ON/OFF switch in the “OFF” position.
NOTE
Pump speed can be
regulated
with
the engine throttle control from full
volume, 65 strokes per pinute, to
about 40 strokes per minute for
lesser volume seepage.Smoothest
operation can be determined by trying to pump at several speeds.
Limit maximum speed to 65 strokes per minute of the diaphragm
(2,800 RPM engine speed).
7. If the engine has started, slowly return the choke lever
(Figure 15 ) to the “OPEN” position. If the engine has not
started repeat steps 1 through 6.
OPERATION