For parts or assistance, call Mastercraft Customer Service at 1-877-455-5508
Installation 9
Process C, continued.
17. Cement as many sections and couplings of rigid 3/4" PVC
pipe needed to connect the 3/4" PVC adapter in the
discharge tee to the 3/4" male adapter on the tank tee
inlet. Set pressure in the diaphragm pressure tank to
2 pounds less than the cut-in pressure of the pump. The
cut-in pressure of these pumps is factory preset to 30 PSI.
If this cut-in setting has not been changed, then the
diaphragm pressure tank should be set to 28 PSI. Total
installation should look like the drawing at right.
WARNING: Risk of explosion. If you change
pressure switch settings, set the cut-off pressure
low enough to shut off the pump. If a valve shuts
off and the cut-off setting is too high, the pump
will run continuously without water flow, causing
overheating and possible explosion which can
cause serious burns and damage.
18. Open a faucet or two in
the house. Start motor.
Turn regulator adjustment
screw down tight. If pump
is properly primed, a high
pressure will immediately
show on the pressure gauge.
With pump operating at high
pressure, slowly unscrew
regulator stem until maximum
water flow is obtained without
dropping to zero. If pressure falls completely, retighten
stem and readjust. Steady pressure must not be less than
24 PSI for the 561471-01 and 28 PSI for the 561472-01. If
no pressure shows, stop motor, remove pressure regulator
from pump, add more water, and try again.
If you install your pump with a 2" single-pipe
(“Packer”) jet, please follow the installation
instructions included with the Packer jet kit.
Notice: Plastic shipping base is attached to prevent movement in shipment
only. Do not return pump if shipping base becomes cracked in shipment,
as pump performance will not be affected.
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