FF-MM-321-REV - 03
Page 6
Operation and Maintenance Guide Sump Pump
Diassembly and Re-assembly of SP10
a. Unscrew and remove Gate Valve (1), Ex-
haust Pipe (49) and Discharge Nipple (48)
from Impeller Housing (46).
b. Unscrew Allen Bolt (33) with Spring Wash-
er (34) to separate Motor Housing (35)
from Impeller Housing (46).
c. Now unscrew Allen Bolt (8) with Spring
Washer (9) to separate Governor Housing
(7) & Gasket (10) from Motor Housing
(35) and replace it with new one. (If found
damaged)
d. Unscrew Hex Bolt (44) with Spacer (43) to
remove Impeller (42) and Rotor Key (41)
from Rotor (28).
e. Now remove motor assembly (Parts in De-
tail B) from Motor Housing (35).
f. Unscrew Governor Body (22) (Clockwise)
from Rotor (28). Now remove Pin (21) from
Governor Body (22) and remove Governor
Weight (20) and replace it with new one. (If
found damaged)
g. Remove Upper End Plate (24) from Rotor
Body (28) to remove Ball Bearing (23) &
Spacer (27) and replace with new one (If
found damaged)
h. Remove Cylinder (25) and Rotor Blades
(29) from Rotor (28). Now remove Roll Pin
(26) from Cylinder (25) and replace with
new one. (If found damaged)
i. Now press Rotor (28) from Lower End
Plate (31) side to remove Rotor (28). Now
remove Ball Bearing (32) from Lower End
Plate (31) and replace it with new ones. (If
found damaged)
j. Now remove Impeller Sleeve (40) from Up-
per Wear Plate (38) and remove O-ring (50)
& Shim (51) and replace it with new ones.
(If found damaged)
k. Unscrew CSK Screw (39) from Upper Wear
Plate (38) from Impeller Housing (46).
l. l) Now remove Oil seals (37) and
O-rings (36) from Motor Housing (1) and
replace it with new ones. (If found worn-
out)
m. Now insert a 6 mm diameter rod (1/4”) in
to the holes in the underside of Impeller
Housing (46) and evenly tap the Lower
Wear Plate (42) out of the housing.
n. Now unscrew Governor Valve Cage (17)
from Governor Housing (7) . Now unscrew
Bushing (18) from Governor Valve Cage
(17).
o. Now remove Internal Circlip (11) from
Governor Valve Cage (17) using circlip
remover. Now remove Spring Retainer (12),
Spring (13), Governor valve (14) & Pin (15)
from Governor Valve Cage (17) and replace
it with new ones. (If found damaged)
p. Now remove Internal Circlip (2) from Air
Inlet Bushing (4) using circlip remover.
Now remove Air Strainer (3) from Air Inlet
Bushing (4), O-ring (5) and O-ring (6) and
replace it with new ones. (If found dam-
aged)
q. Unscrew Air Inlet Bushing (4) from Gov-
ernor Housing (7). Now remove O-ring (5)
an O-ring (6) from Governor Housing (7).
r. When re - assembling the pump, there
should be a clearance of 0.15 mm (0.007”)
to 0.3 mm (0.012”) add the appropriate
thickness of shims under the Lower End
Plate (31). Insure that the shims slots are
aligned with the three knockout holes in
the Impeller Housing (46). When assem-
bling Motor Housing (35) the Upper End
Plate (24) must protrude above the motor
housing (35), between 0.035 mm (0.001”)
and 0.075 mm (0.003”). If not add shims -
similar to wave washers.
s. Ensure while assembly of Upper End Plate
(24) with Cylinder (25) that holes are
aligned.
t. Now follow the above steps in reverse man-
ner to reassemble the Sump Pump.
Disassembly and Re assembly SP10
Disconnect the air supply to the pump.
