Gorman-Rupp Pumps S8A1-E95 575/3 1429751 and up - Manual (Page 32)

S SERIES PUMPS OM-06258
MAINTENANCE AND REPAIR PAGE E - 6
PUMP AND SEAL DISASSEMBLY AND
REASSEMBLY
Review all SAFETY information in Section A.
Do not attempt to service the pump as­
sembly unless all power to the motor
has been shut off at the control box;
otherwise, injury or death could result.
Use a lifting device with sufficient ca­
pacity. If slings or chains are used to
move the pump or components, make
sure that the load is balanced; other­
wise serious personal injury or death
could result.
The maintenance and repair instructions in this
manual are keyed to the sectional views, Figures
E-1 and E-2, and the corresponding parts lists.
Select a suitable location, preferably indoors, to
perform required maintenance. All work must be
performed by qualified personnel.
All repairs to the pump motor must be per­
formed by a Gorman‐Rupp authorized
Submersible repair facility or the factory.
Any repairs to the motor assembly per­
formed by the customer or an unautho­
rized repair facility negates the warranty.
This section provides maintenance instructions re­
quired to properly service the pump components.
Pump motor maintenance may be performed only
by a Gorman‐Rupp authorized Submersible repair
facility, or the factory. Otherwise, the pump warran­
ty will be negated, and damage to the pump, and
injury or death to personnel can result. Contact the
factory for the authorized repair facility closest to
you.
Use the hoisting bail to remove the pump from the
wet well or sump, and move it to a location where
the discharge line can be removed. It is not neces­
sary to disconnect a flexible discharge hose before
removing the pump. If rigid discharge piping is
used, disconnect the piping before attempting to
move the pump.
Do not attempt to lift the pump by the
motor power cable or the piping. Attach
proper lifting equipment to the lifting
device fitted to the pump. If chains or
cable are wrapped around the pump to
lift it, make certain that they are posi­
tioned so as not to damage the pump,
and so that the load will be balanced.
Check the chart in TROUBLESHOOTING, Section
D of this manual, to determine the nature of the
pump problem. If the problem is mechanical in na­
ture, such as worn pump parts, seal replacement,
lubrication, etc., refer to PUMP END DISASSEM­
BLY for instructions.
If the problem is electrical, complete disassembly
may not be required. Refer to Electrical Testing in
TROUBLESHOOTING, Section D, and have a
qualified electrician check the control box, cable
and terminal housing. If the problem is determined
to be in the motor, proceed with PUMP END DIS­
ASSEMBLY, followed by MOTOR DISASSEMBLY.
Otherwise, see Terminal Housing And Power Ca­
ble Disassembly.
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 or gaskets before re­
moval and cleaning to determine if a proper seal
and compression existed prior to disassembly. If
sealing was faulty or questionable, the cause must
be determined and corrected before reassembly.
All gaskets and most O‐rings must be replaced if