Model 37055 • Forms 43000-0663
SERVICE
Page 4
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-abrasive 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 wearing 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 under the seal housing positioned
between the motor and toilet base assembly.
Flood hazard. If toilet is plumbed to an
overboard discharge, close the discharge
seacock prior to disassembling toilet.
Failure to do so can result in flooding which
can cause loss of property and life.
WARNING
!
Notice: Before performing any service, disconnect
the power supply to the toilet and take precaution
to ensure it is not reconnected 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, snap off the white motor
cover and remove the pump assembly by removing
the four screws with lock washers that secure it to
the 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 unscrew the chopper. Remove the
chopper, lock washer 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 hous-
ing 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 facing the threaded end of
the shaft.
Do not use the stainless 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 plastic seal washer under the
head of each of the flat head seal housing retainer
screws and secure the seal housing 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 lock washer on the end of the shaft and
screw the chopper onto the shaft. Tighten the
chopper 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. Replace
the white motor cover by snapping it down over
the pump motor.
