Gorman-Rupp Pumps 06C1-GHH 1071445 and up - Manual (Page 44)

OM-03179 0 SERIES
MAINTENANCE & REPAIR PAGE E - 19
gearbox housing on wooden blocks while in this
position. Remove the bearing stop from the gear­
box housing.
Position the outer race of the rear roller bearing (43)
in the gearbox housing. Note that one side of the
outer race is solid; this solid outer ring must be po­
sitioned toward the outside of the gearbox hous­
ing. When installed, the inner race must have the
shouldered side positioned toward the gear.
Use the bearing driver (G‐R P/N 29511-907) to
press the outer race into the gearbox housing bore
until fully seated. Slide the inner race into the outer
race until fully seated.
Position the inner race of the front roller bearing
(43) on the shaft so that the lettered side and cham­
fer on the race is toward the shaft shoulder.
Use the bearing driver (G‐R P/N 29511-908) to
press the race onto the shaft until seated squarely
against the shaft shoulder.
Pre‐heat the idler gear to 220-230
_
F
(104-110
_
C). Use heavy gloves to reach through
the top of the gearbox and lay the idler gear (39) in
position next to the rear bearing. Position the
spacer fork (G‐R P/N 29511-915) between the
idler gear and the rear bearing.
Install the key (36) in the idler shaft. Coat the idler
shaft and idler gear bore lightly with “Never‐Seez
Black Moly”.
Use one end of the spacer fork tool to align the gear
and rear bearing concentrically. Be sure that the
fork is positioned so the larger diameter (3-9/16
inch or 90 mm) recess faces the bearing. Insert the
idler shaft, making sure the key is properly aligned
with the slot in the gear. Press the shaft through the
idler gear until the shaft shoulder is snug against
the gear.
Remove the spacer fork and press the shaft and
gear into the rear bearing (43) until the gear shoul­
der contacts the bearing.
Position the outer race of the front bearing (34) in
the gearbox housing bore. Note that one side of
the outer race is solid; this solid outer ring must be
positioned toward the inside of the gearbox hous­
ing.
Screw the pin in the bearing driver (G‐R P/N
29511-909) into the tapped hole in the idler shaft.
Use the driver to press the outer race of the bearing
into the housing until fully seated against the inner
race.
Replace the bearing cap gasket (40), and secure
the bearing cap (33) to the gearbox housing by
torquing the capscrews (32) to 35 ft. lbs. (420 in.
lbs. or 4,8 m. kg.).
Input Shaft Reassembly
Use the bearing driver (G‐R P/N 29511-910) to
press the bearing (21) into the gearbox housing
until fully seated.
Reposition the gearbox housing with the opening
for the output shaft facing up. Support the gearbox
housing on wooden blocks while in this position.
Install the retaining ring (18) in the gear. Use the
bearing driver (G‐R P/N 29511-911) to press the
inner bearing (27) into the drive gear until squarely
seated against the lock ring.
Position the spacer (19) against the inner bearing,
and use the bearing driver (G‐R P/N 29511-912)
to press the outer bearing (20) into the gear until
squarely seated against the lock ring and spacer.
Before installing the input shaft, position the
spacer/slinger (28) in the gearbox with the flat side
away from the input shaft opening (facing up). Po­
sition the drive gear assembly in the gearbox hous­
ing with the exposed bearing next to the spacer/
slinger.
Install the retaining ring (26) in the groove on the
input shaft. Use the bearing driver (G‐R P/N
29511-913) in combination with the bearing sup­
port stop (G‐R P/N 29511-920) to press the shaft
through the tail shaft opening until the lock ring
seats against the inner bearing.
Reposition the gearbox housing with the input
splines on the shaft facing up. Support the gearbox
housing on wooden blocks while in this position.
Use the seal driver and stop (G‐R P/N 29511-902)
to press the oil seal (23) into the bearing cap (24)
until fully seated. Install the gasket (29) and secure
the cap to the gearbox housing by torquing the
capscrews (22) to 90 ft. lbs. (1080 in. lbs. or 12,4 m.