Gorman-Rupp Pumps 03B31-B 594101 and up - Manual (Page 24)

0 SERIES OM-01182
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.
This pump requires little service due to its rugged,
minimum‐maintenance design. However, if it be­
comes necessary to inspect or replace the wearing
parts, follow these instructions which are keyed to
the sectional view (see Figure 1) and the accompa­
nying parts list.
This manual will alert personnel to known proce­
dures which require special attention, to those
which could damage equipment, and to those
which could be dangerous to personnel. However,
this manual cannot possibly anticipate and provide
detailed precautions for every situation that might
occur during maintenance of the unit. Therefore, it
is the responsibility of the owner/maintenance per­
sonnel to ensure that only safe, established main­
tenance procedures are used, and that any proce­
dures not addressed in this manual are performed
only after establishing that neither personal safety
nor pump integrity are compromised by such prac­
tices.
Before attempting to service the pump, disconnect
the power source to ensure that the pump will re­
main inoperative. Close all valves in the suction
and discharge lines.
For power source disassembly and repair, consult
the literature supplied with the power source, or
contact your local representative.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man­
ual.
2. Disconnect or lock out the power
source to ensure that the pump will
remain inoperative.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau­
tiously.
7. Drain the pump.
If this pump is used for volatile and/or
flammable liquids, be certain proper
safety practices are followed before op­
erating or servicing the pump. Provide
adequate ventilation, prohibit smoking,
wear static‐resistant clothing and
shoes. Clean up all fuel spills immedi­
ately after occurrence.
Pump Disassembly
Before attempting to service the pump, remove the
pump housing drain plug (29) and drain the pump.
Clean and reinstall the drain plug.
To service the impeller (2), seal assembly (3), or va­
ne plate (24), the pump housing (1) must be sepa­
rated from the seal plate and pedestal (19 and 21).
Remove the suction and discharge lines. Remove
the nuts (23) and use a suitable hoist and sling to
separate the pump housing and gasket (5) from
the seal plate and pedestal.
Remove the seal ring (28) from inside the pump
casing.
Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam­
age to equipment. Suction and dis­
charge hoses and piping must be re­
moved from the pump before lifting.
Impeller Removal
For access to the impeller (2), disengage the hard­
ware (32 and 33) and remove the vane plate (24).