Gorman-Rupp Pumps 06C1-GHH 1071445 and up - Manual (Page 41)

0 SERIES OM-03179
MAINTENANCE & REPAIR PAGE E - 16
sion jack with custom brackets should be
used to lift and position the pump and
gearbox.
Refer to Removing Pump and Gearbox under
PUMP AND SEAL DISASSEMBLY and remove
the pump and gearbox from the vehicle. Move the
pump and gearbox to a clean, well‐equipped shop
for maintenance and repair.
Disassemble the pump components as indicated
in PUMP AND SEAL DISASSEMBLY.
Air Shift Cover Disassembly
To remove the air shift cover assembly (1), disen­
gage the capscrews (63 and 64) securing the as­
sembly to the gearbox housing (41).
The cylinder cap (14) and shifter fork (7) must be
removed before the shifter shaft assembly (2) can
be removed. To remove the cylinder cap, disen­
gage the capscrews (15).
To remove the shifter fork, disengage the socket
head capscrews (6) securing the fork to the shifter
shaft. Remove the shifter fork.
Remove and inspect the shifter shaft assembly and
piston O‐ring (11) and replace any parts as re­
quired. Remove the oil seal (3) and shaft O‐ring (9).
Drive Flange Removal
Disengage the capscrews and remove the lock­
plate washers. Use a suitable puller to remove the
input and output drive flanges (8 and 28, Figure 1).
Output Shaft Disassembly
To remove the tail shaft assembly (46), which in­
cludes the output drive shaft (65) and related com­
ponents, remove the capscrews (61) and pull the
assembly from the gearbox housing. Remove the
bearing retainer gasket (62).
Disengage the hardware (53) and separate the
bearing cap (59) and gasket (52) from the bearing
retainer (49). Inspect the oil seal (56) and, if re­
placement is required, press it from the bearing
cap.
The output shaft cannot be removed from
the bearing retainer without first removing
the ball bearing (55) and roller bearing (48)
from the shaft. The bearings may be dam­
aged during removal.
To remove the output shaft (58), tap against the
splined end of the shaft with a soft‐faced mallet or
brass bar until the shaft is driven approximately 3/4
inch (19 mm) into the bearing retainer. From the op­
posite end of the shaft, use the mallet to tap the
shaft back into the bearing retainer. This will unseat
the ball bearing (55) from the retainer.
Use a suitable bearing puller to remove the ball
bearing from the shaft.
Push the shaft through the roller bearing (48) until
the retaining ring (50) seats squarely against the
bearing. Remove the retaining ring (47), and gently
tap the splined end of the shaft until the roller bear­
ing is out of the bearing retainer. Carefully slide the
bearing retainer off the shaft. Slide the spacer
sleeve (51) off the shaft. Remove the snap ring (50)
and pull the roller bearing off the shaft.
Use a suitable puller to remove the bearing (45)
from the output shaft.
Input Shaft Disassembly
To remove the input drive shaft (25), disengage the
capscrews (22) and separate the bearing cap (24)
and gasket (29) from the gearbox housing. Inspect
the oil seal (23) and, if replacement is required,
press it from the bearing cap.
Reach through the tailshaft end of the gearbox
housing and remove the sliding clutch (44). Re­
move the retaining ring (26) from the shaft.
Position the gearbox housing on an arbor (or hy­
draulic) press with the drive flange (splined) end of
the input shaft facing up. Insert a spacer tool (G‐R
P/N 33144-011) between the drive gear (17) and
the internal wall of the gearbox housing so that the
drive gear is held in place as the shaft is pressed
through. Press the shaft from the housing while
reaching through the top of the gearbox housing to
remove the drive gear, bearings (20), and spacer/
slinger (28).