Idiomas disponibles
Idiomas disponibles
MAINTENANCE
HJ AND HJA MODELS
RISK OF ELECTRIC SHOCK
Can shock, burn or kill. To guard against accidental pervsonal
injury, the electric power to the pump should be turned off and
the pressure tank drained before servicing pump.
HOW TO DISMANTLE (HJ DEEP WELL)
1.
Disconnect power and drain pressure tank before
dismantling pump.
2.
Disconnect pressure switch tube, remove pump case bolts
and bracket from foot bolts.
3.
Use heavy screwdriver behind bolt ears and pry motor
bracket from case.
4.
Remove diffuser plate bolts and take off diffuser (Figure
10). When replacing diffuser, use three .010" thick shims
equally spaced between impeller eye and diffuser to
prevent impeller rubbing diffuser and binding.
Figure 10: Remove Diffuser Plate
5.
Remove impeller by holding pump shaft with water
pump pliers and unscrewing impeller - left-hand
counterclockwise facing the impeller to remove (Figure
11). Impeller can also be removed by prying out motor shaft
end cap. Use a screwdriver in slot in end of shaft or a 7/16"
open end wrench on shaft flats and hold to prevent shaft
rotation. Unscrew impeller counterclockwise.
Figure 11: Remove Impeller
6.
Using two screwdrivers, as shown in Figure 12, pry out
rotating assembly of shaft seal.
14
Figure 12: Pry Out Seal
7.
Pump shaft is extension of motor shaft so it is not
necessary to replace or adjust for seal postion.
8.
Remove 4 bolts holding motor to bracket and remove motor.
HOW TO DISMANTLE (HJ SHALLOW WELL)
1.
Disconnect power and drain pressure tank before
dismantling pump.
2.
Remove case bolts and pry bracket from pump case.
3.
Remove screen and plastic diffuser plate. When replacing
diffuser, use three .010" thick shims equally spaced
between impeller eye and diffuser to prevent impeller
rubbing diffuser and bindings.
4.
On 1/2 HP models, hold impeller with pliers and unscrew
venturi tube. On 3/4 and 1 HP models, venturi tube is
screwed into the pump case (figure 13).
Figure 13: Remove Venturi
5.
Hold pump shaft with pliers and unscrew impeller as shown
(Figure 11).
6.
When replacing impeller, file any plier cuts on shaft smooth
after tightening in place.
7.
Priming screen must be placed with dimple down. THIS IS
IMPORTANT FOR PROPER PRIMING. DO NOT LEAVE THIS
SCREEN OFF.
8.
Nozzle on 1/2 HP models can be removed from pump case
with any standard 1-1/4" socket wrench with an extension
(Figure 14).
On 3/4 and 1 HP models venturi tube and nozzle can be
removed in same manner using 27/32" socket for the venturi
and 9/16" socket with extension for nozzle.
P15004 (12-15-22)
