Craftsman 390.251883 - Manual (Page 3)

CONTENTS
Safety.......................................................................................................... 2
W ananty/Introduction............................................................................. 3
Pump Performance................................................................................... 3
Major Components............................................................................... 3-4
Piping.......................................................................................................... 4
Electrical..................................................................................................... 5
Installation..................................................................................................6
Operation....................................................................................................6
Maintenance............................................................................................7-8
Helpful Hints............................................................................................. 8
Troubleshooting Guide...........................................................................-P
Repair Parts........................................................................................ 10-11
INTRODUCTION
We suggest you take a few minutes to read the instructions con­
tained in this manual before installing and using your pump. This
will help you obtain the full benefits of the quality and convenience
built into this equipment. It will also help you avoid any needless
service expense resulting from causes beyond our control which
naturally cannot be covered in our warranty.
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RULES FOR SAFE INSTALLATION AND OPERATION
3.
Read the Owners Manual and Rules for Safe Operation and
Installation Instructions carefully. Failure to follow these Rules
and Instructions could cause serious bodily injury, and/or prop­
erty damage.
Check your local electrical wiring codes before installation. If
your local codes are not followed, your pump will not work to
its full rated capacitj’. If in doubt, contact your local Power
Company.
Be certain your pump installation meets all local plumbing,
pump and well codes.
While installing the pump, always keep the well covered to pre­
vent leaves and foreign matter from falling into the well and con­
taminating the water and/or causing possible serious damage to
the mechanical operation of the pump.
5. Always test the wcU water for purity before using. Check with
local health department for testing procedure.
6. Before Installing or servicing your pump, BE CERTAIN pump
power source is disconnected. -
7. Be sure your pump electrical circuit is properly grounded.
8. Complete pump and piping system MUST be protected against
below freezing temperature. Failure to do so could cause severe
damage and voids the Warranty.
9. Make sute the line voltage and frequency of the electrical circuit
supply agree with the motor wiring. If motor is dual voltage
type, BE SURE it is wired correctly for your power supply.
10. The correct fusing and wiring sizing is essential to proper motor
operation. Recommended fusing and wire size data is in the
manual.
MAJOR COMPONENTS / PIPING
MAJOR COMPONENTS AND WHAT
THEY DO
NOTICE; Use Teflon tape supplied with the pump for making all
threaded connections to the pump.
Impeller and Jet
Impeller turns with motor shaft, causing water to fly out from its
rim by centrifugal force. Impeller rotation creates a vacuum which
pulls in more water. Part of the water is diverted back to the jet
where it passes through the nozzle and venturi. This creates more
vacuum to draw in more water.
In shallow we lls (less than 20 feet deep), the vacuum created at the
pump is enough to pull water to the pump. Therefore, the jet as­
sembly is built into the pump.
Air Volume Control
The air volume control (AVC) maintains the cashion of air in
Standard tanks,