diameter holes (slightly over-lapping) through the select-
ed switch mounting surface per the attached template.
Ensure the template is oriented correctly because it is
not symmetrical. Also, drill four appropriate sized holes
for the fasteners selected to secure the switch panel to its
mounting surface.
WASTE PUMP SERVICE
The Jabsco Quiet-Flush Toilet does not require routine
maintenance other than occasional cleaning to maintain a
hygienic sanitary condition. Clean toilet with mild non-abra-
sive cleaners without strong aromatics. Cleaners having
high concentrations of aromatics such as pine scented
concentrated cleaners and strongly scented degreaser
concentrates can cause the pump’s seal to swell and may
contribute to a premature seal leak. The toilet has no wear-
ing parts that need periodic replacement other than the
shaft seal which, under normal conditions, should provide
several years of service before needing replacement. The
seal only requires replacement if signs of leakage are
noticed around the base and rear of the toilet china bowl.
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 the service
is complete. Also, pump all water from the toilet bowl
and if connected to an overboard discharge, close the
discharge seacock.
To replace the shaft seal, remove the two toilet hold-
down screw caps and remove the hold-down screw nuts.
Carefully lift the toilet up and away from the bulkhead at
it’s rear. Remove the pump assembly by removing the
four screws with lock washers that secure it to the plas-
tic toilet base. Carefully slide the pump assembly from
the base ensuring the macerator housing also slides out
of the base with the pump. The pump chopper will
engage the macerator housing and it may be necessary
to gently tap the chopper against the macerator housing
to free it from the base.
Prevent the motor shaft from turning by inserting a
screwdriver in the shaft slot at the rear of the motor and
remove the self locking nut. Remove the chopper and
macerator housing from the motor shaft. Remove the
O-ring from the O-ring groove around the outer diameter
of the seal housing. With an allen wrench, loosen the
centrifugal impeller set screw and slide the impeller off
the shaft. Remove the two screws that secure the seal
housing to the motor and slide the housing off the motor
shaft. Remove the two seal washers from under the
head of each of the two seal housing retainer screws.
With a pair of needle nose pliers, grasp the shaft seal
and pull it from the seal housing. Clean all parts and
inspect for damage.
Lubricate the OD of the new seal with a small amount of
water and press it into the seal bore with the seal’s lip fac-
ing the threaded end of the shaft. Do not use the stain-
less steel star retaining washer supplied with the seal.
Lubricate the ID of the seal and the motor shaft with a
small amount of water resistant grease. Ensure the
slinger is properly positioned on the motor shaft next to
the motor and slide the seal housing onto the motor shaft
until it is against the motor end bell. Position a new plas-
tic seal washer under the head of each of the flat head
seal housing retainer screws and secure the seal hous-
ing to the motor. Slide the centrifugal impeller on the
motor shaft positioning it about 1/32"(1 mm) from the
seal housing and secure it to the shaft with the set
screw. Rotate the impeller to ensure it does not rub on
the seal housing.
Slide the macerator housing over the motor shaft. Place
the chopper on the shaft with the tab on the flat of the
shaft. Install the self locking nut and tighten firmly while
holding the motor shaft at the rear of the motor. Position
a new O-ring in the seal housing O-ring groove (it may
be retained in the groove with a small amount of grease).
Slide the pump assembly into the toilet base ensuring
the macerator housing is properly positioned within the
base. The cut-out in the side of the macerator housing
must align with the discharge port in the base (the
macerator housing is keyed so it will only go in when
properly positioned). Ensuring the O-ring is still properly
positioned in the O-ring groove in the seal housing,
place the pump assembly against the base and secure it
in place with the four screws and lock washers.
Carefully lift the toilet and position over the two hold-
down screws using caution not to chip or break the china.
Secure the toilet down with the hold-down nuts and
washers ensuring the plastic washer is next to the china.
Do not overtighten hold-down nuts.
