6
Par-MaX serViCe instrUCtions
The PAR-MAX rinse water supply pump needs no
periodic maintenance for proper performance. The only
time service work should need to be performed on the
pump is if it should begin to leak water, suddenly
delivers less water than normal or should stop pumping
altogether. Should the pump begin to leak water, it will
be necessary to replace the diaphragm. If the pump
delivers a reduced rate of flow from normal or stops
pumping altogether, it will be necessary to either
remove debris from the pump’s flapper valves or replace
the valve cage assembly.
NOTIcE:
Before performing any service, turn off the
electrical power to the toilet and rinse water pump. Take
precaution to ensure it is not turned on until service is
complete. Close the inlet fitting seacock.
It is generally easiest to remove the pump from its
installed position so that the service can be performed
on a work bench. To do this, disconnect the electrical
wires from the motor wire leads. Push the port retainer
clips back toward the pump motor and pull the port
fittings from the port sockets. Unscrew the four pump
mounting fasteners and remove the pump to a location
where it can be disassembled without losing any of the
pump components.
Loosen the four 5/16
"
hex (slotted) machine screws in
the pump body and remove the body from the motor
and wobble plate housing (use care to not drop and
lose the port retainer clips and body retaining screws
and washers). The valve cage will now be exposed
which can be easily lifted off the diaphragm. Inspect the
four outer inlet valves and central discharge valve to
ensure they seat smoothly against the valve cage.
Lift the outer edges of each valve to make certain there
is no debris lodged under any valve. If there is debris
lodged under any of the valves, it will cause a diminished
flow rate or loss of flow entirely. If the valves do not seat
smoothly against the valve cage, the valve cage
assembly should be replaced. If the pump has been
leaking, the diaphragm must be replaced. Remove the
four phillips head diaphragm retainer screws and
mushroom shaped diaphragm retainer caps. Remove
the diaphragm and diaphragm housing from the motor
and wobble plate housing. Inspect the wobble plate
bearing to make certain it is not corroded and still
rotates smoothly.
With the new diaphragm positioned in the diaphragm
housing (ensure the raised sealing beads face outward
away from the motor) hold it against the wobble plate
with the four retaining cap holes aligned with the wobble
plate sockets. Push each diaphragm retainer cap
through the diaphragm and into the socket of the wobble
plate. Secure each retaining cap to the wobble plate
with a 1
"
phillips head retainer screw. Place the motor
on its rear end bell and position the valve cage against
the diaphragm ensuring each cavities seal groove is
seated on its sealing bead molded into the diaphragm.
Ensure the O-ring seal that separates the pumps intake
chamber from the discharge chamber is properly seated
in the ID of the raised lip around the central discharge
valve. While holding the port retainer clips in their slide
grooves in the pump body, position the body on the
diaphragm and inside the wobble plate housing. Secure
the pump body to the wobble plate housing with the four
2-1/4
"
machine screws and flat washers.
Reinstall the pump to its mounting surface with four
fasteners through the rubber grommets. Ensure the
sealing O-ring is properly positioned on each port fitting
and, with the retaining clips slid back, push each port
fitting into its respective socket.
Slide each port retainer clip forward until it snaps
securely into its seated position. Reconnect the orange
motor lead to the positive supply wire and the black
motor lead to the negative wire.
Ensure the inlet seacock is open before restoring power
to and operating the toilet.
one year liMiteD Warranty
A. LIMITED WARRANTY:
JABSCO warrants that at
the time of shipment, the products manufactured by
JABSCO and sold hereunder shall be in conformity with
applicable written specifications and descriptions
referred to or set forth herein, free from defects in
material and workmanship, merchantable, and suitable
for a particular purpose, provided such is implied by
State law under the circumstances of this sale.
B. WARRANTY ADJUSTMENT:
JABSCO agrees to repair or furnish a replacement
1.
for, but not to remove or install, any product or
component thereof which, within one (1) year from
date of purchase, shall upon test and examination
by JABSCO prove defective within the above
warranty. Receipt verifying purchase date is required
to obtain adjustment.
Buyer shall notify JABSCO of any defect within this
2.
warranty no later than ninety (90) days after the
defect is discovered.
No product will be accepted for return or replacement
3.
without the prior written authorization of JABSCO.
Upon such authorization, and in accordance with
instructions from JABSCO, the product will be
returned to JABSCO, shipping charges prepaid by
Buyer. Products returned to JABSCO will be
addressed as follows:
JABScO
cape Ann Industrial Park
Gloucester, MA 01930
Or to such alternate locations as may be designated on
the product, its container, or this sheet. Repair or
replacement made under this warranty will be shipped
prepaid to Buyer.
