Gorman-Rupp Pumps S8A1-E95 575/3 1429751 and up - Manual (Page 40)

S SERIES PUMPS OM-06258
MAINTENANCE AND REPAIR PAGE E - 14
To disconnect the power cable (13) from the termi­
nal housing, pull the terminal plate (19) away from
the terminal housing. When shipped from the fac­
tory, the connections between the power cable
leads and the terminal collars (2) were encapsu­
lated in heat‐shrink tubing (3) and bonded to the
terminal plate with silicone adhesive (not shown).
(In service, the adhesive may have been replaced
by potting compound during previous repair.) If
damage is extensive and the terminal plate and ter­
minals are to be replaced, simply cut the power
cable leads above the terminal collars and heat‐
shrink tubing, and discard the terminal plate and
terminals.
If damage is not extensive and it is necessary to re­
place the terminal plate (19) or terminal compo­
nents, carefully cut away the tubing and adhesive.
Disconnect the power cable leads from the termi­
nal posts, and separate the terminal plate (19) from
the terminal housing (16). Unscrew the terminal
posts (1), and remove the terminal collars (2),
posts and dyna seal washers (20) from the terminal
plate.
Remove the hardware (4 and 5) securing the green
and yellow ground leads to the terminal housing.
Reinstall the hardware.
The terminal washer (7), bushing (8), cable grip
(11) and gland (12) can now be removed from the
cable.
See Terminal Housing/Power Cable Reassemb­
ly if no further disassembly is required.
Intermediate And Motor Housing Disassembly
(Figure E-1)
See PUMP END DISASSEMBLY, and remove all
pump end and seal components.
With the pump end disassembled and the motor
cavity drained of oil, secure the pump in an in­
verted position. Remove the hardware (46 and 47)
securing the intermediate (17) to the motor hous­
ing (20). Do not remove the hardware (43 and 44)
around the rotor shaft at this time.
Hook a three‐leg‐sling in the intermediate flange
holes and hoist the intermediate, rotor and shaft
(23), bearing cap (40) and both ball bearings (24
and 39) from the motor housing as an assembly. If
necessary, tap around the parting surfaces with a
soft faced mallet to loosen the seal between the in­
termediate and motor housing. Remove the motor
housing gaskets (18, 19 and 42).
Cover the motor housing with a clean, lint free cloth
to avoid contamination by dirt or other foreign ma­
terial.
Rotor And Bearing Removal
(Figure E-1)
Set the intermediate and rotor assembly on a clean
work area. Leave the lifting slings attached and re­
duce the tension slightly. Remove the hardware
(43 and 44) securing the bearing cap to the inter­
mediate. Steady the rotor and separate the inter­
mediate. If necessary, tap the impeller end of the
rotor shaft with a soft faced mallet to loosen the
seal between the lower ball bearing (39) and the in­
termediate bore.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected in place. It is
strongly recommended that the bearings
be replaced any time the shaft and rotor
assembly is removed.
Before removing the bearings from the rotor shaft,
clean and inspect the bearings in place as follows.
Clean the bearings thoroughly in fresh cleaning
solvent. Dry the bearings with filtered compressed
air and coat with light oil.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven­
tilated area; free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain­
ers.
Rotate the bearings by hand to check for rough­
ness or binding and inspect the bearing balls. If ro­