Grasp the pump body, wearplate and motor with one hand, holding
them together as an assembly. Then slide the mounting
lange/macerator housing off the pump body with the other hand
trying not to disturb the wearplate and damage the paper gaskets.
It may be necessary to gently tap on the flange with a plastic mal-
let to start it sliding off the pump body.
If the gaskets are damaged, they should be replaced with new
ones (provided) before attaching the new mounting flange/macera-
tor housing. To do this insert a blunt rod dowel into the discharge
hole in the pump body and push it against the impeller to prevent
the motor shaft from turning. Unscrew and remove the chopper
from the motor shaft. Lift the wearplate and gaskets from the pump
body and clean any paper residue which may stick to the
wearplate and body. Reassemble with new gaskets by reversing
the procedure.
Before assembling the new mounting flange/macerator housing to
the pump body, ensure the discharge port O-Ring is properly posi-
tioned in the O-Ring groove of the pump body. Secure the flange to
the pump body with the two shorter screws and the pump assem-
bly to the motor with the two longer screws.
Before removing the manual pump, flush the toilet for sufficient
time to ensure all waste is thoroughly flushed from the discharge
hose.
Remove the 3/4" inlet hose and toilet bowl link hose from the manual
pump. Detach the discharge elbow, flange and joker valve assembly
from the pump cylinder. It should not be necessary to remove the dis-
charge hose from the elbow.
Remove the screws which secure the pump assembly to the
toilet base and retain them to reattach the electric flush pump.
Remove the manual pump assembly and the base flapper
valve/gasket assembly with attached brass weight. The pump
and flapper valve may be disinfected and stowed away for
emergency use should the vessel lose electrical power.
Before assembling the electric flush pump to the toilet base,
attach the discharge elbow, flange and joker valve to the flush
pump discharge. Position the new pump base gasket (provided)
on the toilet base. Align the flush pump mounting flange with the
toilet base and secure it with the pump mounting screws.
Attach the 3/4" inlet hose to the inlet port (beneath the upper
pump pointing down). Do not connect the pump inlet to a pres-
surized water system. Attach the bowl link hose to the flush
pump discharge port (rear of upper pump pointing back). If the
bowl link hose is not long enough or is kinked, replace it with the
length of hose provided with the flush pump kit.
If the toilet is positioned below the waterline or may be below the
waterline at any angle of heel or trim, the plumbing must include
vented loops positioned above the waterline. To do this, remove
the length of hose which connects the flush pump with the bowl.
In its place install a length of hose long enough to connect the
flush pump to a vented loop fitting positioned a minimum of 8
inches above the waterline. Connect the other side of the vented
loop fitting to the bowl inlet elbow.
In below waterline installations with the discharge hose connect-
ed to a thru-hull fitting, the hose must rise up and be connected
to a vented loop positioned a minimum of 8 inches above the
waterline and then continue on to the discharge seacock. The
total rise of the discharge hose, however, must not exceed 6 feet
of head. If a vented loop fitting in the discharge hose positioned
at least 8" above the waterline results in a total discharge head
that exceeds 6 feet, the electric flush pump should not be
installed.
WIRING
The flush pump should be wired to the power source with an
electrical circuit independent of all other accessories. The total
length of wire should be kept to a minimum and the wire should
be sized in accordance with the following electrical specifications
chart. The wires, if not run through a conduit, should be support-
ed every 18 inches with non-metallic clamps.
NOTICE:
Correct wire size and secure wire connections are
very important. Undersized wire and unsecured or corroded
wire connections will cause a reduction in pump performance
and possible pump failure.
The entire circuit should be protected by an appropriate
size circuit breaker or switch panel located as close to the
power source as possible.
Connect the red motor lead to positive and the black
motor lead to negative. When making connections to the
motor leads use only mechanical locking (crimp type) con-
nectors or equivalent and seal the connection with silicone or
heat-shrink tube to protect it from corrosion.
RATED NOMINAL FUSE
WIRE SIZE PER LENGTH OF RUN*
VOLTAGE
AMPS
SIZE
0'-10' 10'-15' 15'-25' 25'-40' 40'-60'
12
24
25
12
10
8
6
4
24
13
15
16
14
12
10
10
*Length of run is the combined distance from the positive
power source to the flush pump and back to ground.
Wire sizes recommended will allow no more than a 5%
drop in voltage.
WARNING
!
Flood hazard. Close inlet and outlet
seacocks prior to disassembling toilet.
Failure to do so can result in flooding
which can cause loss of property and life.
VENTED LOOP ILLUSTRATION