Gorman-Rupp Pumps SF6B All serial numbers - Manual (Page 37)

OM-06548 SF SERIES
PAGE E - 13 MAINTENANCE AND REPAIR
clearance is too narrow, turn the screws (10) in an
alternating pattern to push the pump casing and
suction head away from the impeller until the prop­
er clearance is achieved. If the clearance is too
wide, use the hardware (9 and 21) to draw the
pump casing and suction head toward the impeller
until the proper clearance is achieved.
When the face clearance is properly set, secure the
adjusting screws (10) by tightening the jam nuts
(18) against the back of the seal plate. Torque the
screws (10) to 116 ft. lbs. (16 m. kg.).
Final Assembly
If installed in a slide rail application and the pump
guide shoe was removed for disassembly, install a
new guide shoe seal and secure the seal and guide
shoe to the pump casing with the previously re­
moved hardware.
If installed in a trash application, secure the pump
to the trash stand with the previously removed
hardware. If the discharge elbow was removed, re­
place the gasket and secure the discharge elbow
to the pump casing with the previously remove
hardware and reconnect the discharge piping.
Use a suitable lifting device to reposition the pump
in the wet well or sump.
MOTOR DISASSEMBLY
Disassembly of the motor is rarely required except
to replace the motor rotor, stator or bearings. Do
not disassemble the motor unless it is necessary
and a clean, well‐equipped shop is available.
NOTE
It is recommended that a pump with a defective mo­
tor be returned to Gorman‐Rupp, or to a Gorman‐
Rupp authorized Submersible Repair Center.
The electrical power used to operate
this pump is high enough to cause inju­
ry or death. Make certain that the control
handle on the control box is in the off po­
sition and locked out, or that the power
supply to the control box has been
otherwise cut off and locked out, before
attempting to open or service the pump
assembly. Tag electrical circuits to pre­
vent accidental start‐up.
Carefully inspect any O‐rings before removal and
cleaning to determine if a proper seal and com­
pression existed prior to disassembly. If sealing
was faulty or questionable, the cause must be de­
termined and corrected before reassembly. Re­
place any parts as required.
Hoisting Bail Removal
(Figure E-1)
The hoisting bail (28) must be removed in order to
remove the terminal housing assembly (24). To re­
move the hoisting bail, disengage the hardware (9
and 27) and separate the bail from the motor hous­
ing.
Terminal Housing Assembly Removal
(Figure E-1)
The terminal housing assembly (24) may be re­
placed without disassembling the motor or pump
end components.
With the pump secured in an upright position, re­
move the hardware (25 and 26) securing the termi­
nal housing assembly to the motor assembly (20).
Carefully pull the terminal housing assembly out of
the motor housing until the power and motor cable
connections with the stator leads can be ac­
cessed.
The contacts on the ends of each cable lead are se­
cured in a plastic housing which mates with a cor­
responding housing on each of the stator leads.
Carefully pull each of the cable lead housings apart
from its corresponding stator lead housing and re­
move the terminal housing assembly from the
pump.
Further disassembly of the terminal housing as­
sembly is not required. Individual parts are not sold
separately.
See Terminal Housing Assembly Installation if
no further disassembly is required.