Gorman-Rupp Pumps SE1 1/2B3-E.33 12V 1483930 and up - Manual (Page 18)

OM−06490 SE SERIES
MAINTENANCE & REPAIR PAGE E − 4
PUMP AND SEAL DISASSEMBLY
AND REASSEMBLY
Review all SAFETY information in Section A.
Follow the instructions on all tags, label and de-
cals attached to the pump.
The following maintenance and repair instructions
are keyed to the Pump Model sectional view (Fig-
ure 1) and the accompanying parts lists.
Before attempting to service the pump, switch off
the pump and disconnect the power cables from
the vehicle battery to ensure that the pump will re-
main inoperative.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Switch off the pump and discon-
nect the power cables from the ve-
hicle battery to ensure that the
pump will remain inoperative.
3. Allow the pump to cool if over-
heated.
Use a rope or chain attached to the handle in the
motor cover to remove the pump from the sump,
and move it to a location where the discharge line
can be removed. It is not necessary 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
power cables, carry handle or piping.
Attach proper lifting equipment to the
lifting eye fitted to the pump.
Select a suitable location, preferably indoors, to
perform the degree of maintenance required. If the
motor housing is to be opened, the work must be
done in a clean, well-equipped shop. All mainte-
nance functions must be done by qualified person-
nel.
Obtain the services of a qualified elec-
trician to troubleshoot, test and/or ser-
vice the electrical components of this
pump.
Check the chart in TROUBLESHOOTING, Section
D, to determine the nature of the pump problem. If
the problem is mechanical in nature, such as worn
pump parts, seal replacement, etc., refer to PUMP
END DISASSEMBLY 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 cables and electrical
components inside the motor cover. If the problem
is determined to be in electrical components, com-
plete disassembly of the pump may not be re-
quired. See the appropriate section in MOTOR
DISASSEMBLY.
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
disturbed. Repair gaskets and O-rings are listed on
the parts list.
PUMP END DISASSEMBLY
Strainer Removal
To remove the strainer screen (11), lay the pump
on its side and disengage the hardware (13 and
14). Remove the strainer plate (12), strainer
screen, suction cover (10) and casing gaskets (9).
If the impeller is clogged, the debris can usually be
removed without further disassembly.