Gorman-Rupp Pumps 112D60-B-TCD914L6 1520501 and up - Manual (Page 29)

OM-06592 10 SERIES
MAINTENANCE & REPAIR PAGE E - 9
suction elbow only, do not try to lift the pump. Re­
move the hardware securing the elbow support
(21) and pedestal foot (20) to the base. Tie and tag
any leveling shims used under the mounting feet to
ease reassembly.
Before attempting to remove the suction elbow,
support the pump body by wedging a block of
wood under the pump casing.
Remove the hardware (29, 32 and 45) securing the
pedestal foot and suction elbow (19) to the pump
casing. Use the jacking screws (65) to press the
suction elbow out of the pump casing and sepa­
rate the assemblies.
Inspect the wear plate (16) and O‐ring (17) for dam­
age or wear. If the wear plate must be replaced, re­
move the hardware (51 and 68) from the wear plate
studs (67). Loosen the jam nuts (44) and then tight­
en the adjusting screws (43) until the wear plate is
free. Inspect the suction head O‐ring (18) for dam­
age and replace as required.
Impeller Removal
(Figure E‐3)
Before attempting to remove the impeller, immobi­
lize the impeller by wedging a block of wood be­
tween the vanes and the pump casing. Remove
the impeller capscrew, washer and roll pin (13, 14
and 15). Remove the wood block and install two
3/8-16 UNC-2B capscrews (not supplied) in the
tapped holes in the impeller hub. Use a suitable
puller to remove the impeller from the shaft (3). Re­
tain the impeller key (12).
Remove the impeller adjusting shims (not shown).
For ease of reassembly, tie and tag the shims or
measure and record thickness.
Seal Removal and Disassembly
NOTE
There is an air filled cavity with an open drain hole
toward the bottom of the pedestal directly behind
the seal plate (55). If oil escapes from the drain
hole, the seal plate O‐ring (52) has failed and re­
moval of the seal plate is required. The drain hole is
tapped, but do not install a pipe plug in the drain
hole..
(Figures E‐3 and E‐4)
Before removing the seal, disconnect the hose (59)
from the connector (58) and plug the tube to stop
the flow of oil from the bottle oiler (56). Remove the
connector (58) and allow the seal cavity to drain.
NOTE
The oil will not drain below the hole for the connec­
tor. To drain the remaining oil from the seal cavity,
remove one of the pipe plugs (53) and drain the re­
maining oil into a pan.
Remove the seal spring. Slide the shaft sleeve (70)
and rotating portion of the seal off the shaft as a
unit. Apply oil to the sleeve and work it up under the
bellows. Slide the rotating portion of the seal off the
shaft sleeve.
Remove the shaft sleeve O‐ring (71).
Use a pair of stiff wires with hooked ends to remove
the stationary element, seat and O‐rings from the
seal plate.
Clean the seal cavity and shaft with a soft cloth
soaked in cleaning solvent.
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.
If no further disassembly is required, see Seal
Reassembly and Installation.
Pump Disassembly
(Figure E‐3)
Remove the discharge piping. If disassembly is re­
quired, remove the hardware (35, 36 and 37) se­
curing the discharge spool flange (34) and flange
gasket (33) to the pump casing (1).
Remove the hardware (29, 55 and 56) securing the
bottle oiler bracket (54) to the pedestal (2). Use a
suitable hoist and sling to support the pump cas­