Multiquip AP6 Series - Manual (Page 32)

PAGE 32 — AP6/AP8 SERIES TRASH PUMPS • OPERATION AND PARTS MANUAL — REV. #0 (06/11/14)
OPERATION (MANUAL MODE)
ENGINE STARTUP (MANUAL MODE)
1. Insert ignition key into ignition switch.
Figure 22. Ignition Switch/Key
2. Turn ignition key to the RUN position, and verify that
voltmeter gauge on the control box indicates 12 VDC.
3. Verify that the battery, glow plug, oil pressure and
coolant temperature status LEDs are all ON.
4. Next, continue turning the ignition key clockwise and
place in the START position.
5. Release ignition key as soon as engine starts, and
verify that ignition switch automatically returns back
to the RUN position.
6. Verify that the all status LEDs are OFF.
7. If battery charge indicator LED remains ON, increase
engine speed until LED goes OFF. When the charge
LED turns OFF, it can then be assumed that the
charging system is working correctly.
8. If the charge LED remains ON while the engine is
running, refer to Engine Troubleshooting Table or the
John Deere Engine Service Manual.
9. Unlock the throttle control lock knob (Figure 23) by
turning the knob counterclockwise.
10. Next, adjust the engine speed by turning the throttle
control clockwise to increase engine speed and
counterclockwise to reduce engine speed.
11. Once the desired engine speed has been achieved,
turn the throttle control lock knob clockwise to lock the
selected engine speed setting.
OFF
RUN
START
AUTO ST
ART (WHEN E
QUIPPED
)
IGNITION
KEY
IGNITION
SWITCH
Figure 23. Throttle Control
Operation
1. The pump should begin pumping water within a minute
depending on the length of suction hose and height
the pump is above water.
2. If pump does not begin to pump water after a few
minutes, check for loose connections or air leaks
in the suction hose. Make sure there is water in the
vacuum system and strainer is not clogged with debris.
Reference Pump Troubleshooting Flowchart.
3. Make certain suction hose does not have any air
leakage. Tighten hose clamps and couplings as
required.
4. Check for leaks between pump and engine. If water
is leaking between the pump and bearing housing,
the seal inside the pump may be worn or damaged.
Continued operation of the pump is not recommended.
Further usage of the pump under these conditions
may cause severe water damage to bearing housing
assembly.
UNLOCK
LOCK KNOB
DECREASE
INCREASE
LOCK
THROTTLE CONTROL
NOTICE
If engine does not start, turn ignition key to the OFF
position to reset. Wait 10 seconds before restarting.
Use hand fuel pump to remove air from fuel return line.
NOTICE
Longer suction hoses will require more time for the
pump to begin pumping water.