Gorman-Rupp Pumps 06C1-GHH 1071445 and up - Manual (Page 45)

0 SERIES OM-03179
MAINTENANCE & REPAIR PAGE E - 20
kg.). Use caution not to damage the oil seal lip on
the shaft splines.
Reposition the gearbox housing with the opening
for the tail shaft facing up. Support the gearbox
housing on wooden blocks while in this position.
Push the sliding clutch (44) over the long splined
end of the input shaft. The narrow row of teeth must
face toward the retaining ring (26). Check for free
movement by sliding the clutch back and forth over
the full length of the splines.
Output Shaft Reassembly
Press the roller bearing (48) into the bearing retain­
er (49) until fully seated and install the retaining ring
(47).
Position the roller bearing (45) in the geared end of
the output shaft (58) and press it into the shaft bore
until fully seated.
Slide the splined end of the output shaft through
the bearing until the bearing seats squarely
against the shaft shoulder.
Install the retaining ring (50), and slide the gear
(51) and spacer (54) onto the shaft.
Position the spacer (G‐R P/N 29511-913) over the
geared end of the output shaft, and rest the retain­
er, shaft and spacer on the bed of the press with the
splined end of the shaft facing up. Use the bearing
driver (G‐R P/N 29511-913) to press the bearing
(55) over the shaft until fully seated in the bearing
retainer bore.
Install the bearing retainer gasket (62). Slide the tail
shaft assembly into the gearbox housing until the
bearing retainer seats squarely against the hous­
ing shoulder, and the bearing (45) is positioned
over the end of the input shaft. Secure the bearing
retainer to the gearbox housing by torquing the
capscrews (61) to 90 ft. lbs. (1080 in. lbs. or 12,4 m.
kg.).
Use the seal driver and stop (G‐R P/N 29511-902)
to press the oil seal (56) into the bearing cap (59)
until fully seated. Install the gasket (52) and secure
the cap to the bearing retainer by torquing the cap­
screws (53) to 50 ft. lbs. (600 in. lbs. or 7 m. kg.).
Air Shift Cover Reassembly
Reinstall the shifter shaft O‐ring (9) and oil seal (3).
Be sure the lip of the oil seal is directed toward the
shifter fork.
Replace the plunger O‐ring (11). Lubricate the O‐
rings, piston and cylinder I.D. with “Parker‐O‐Lube”
and reinstall the shifter shaft assembly (2). Secure
the cylinder cap (14) by tightening the capscrews
(15) equally to prevent cocking the cylinder body;
torque the capscrews to 35 ft. lbs. (420 in. lbs. or
4,8 m. kg.). Check for free movement of the shaft
and piston.
Inspect the shifter fork (7) and replace as neces­
sary. Position the shifter fork on the shifter shaft.
Secure the fork to the shaft by torquing the allen
head screws (6) to 45 ft. lbs. (540 in. lbs. or 6,2 m.
kg.).
Engage the shifter fork with the sliding clutch, and
secure the air shift cover to the gearbox housing by
torquing the capscrews (63 and 64) to 35 ft. lbs.
(420 in. lbs. or 4,8 m. kg.).
Apply “Permatex” or equivalent compound on the
hose fittings before installing the air supply lines to
the air cylinder. Air check all possible leak points
with 120 to 150 psi (8,4 to 10,5 kg/cm
@) before fur­
ther reassembly.
Check the shifter fork and sliding clutch alignment
by working the shifter fork back and forth. The shaft
should travel approximately 1-5/8 inches (41,3
mm) between the two positions.
Pressure Testing
The gearbox should be pressure tested any time a
sealed surface is disturbed. This includes flange,
gasket or oil seal removal, as well as a complete
overhaul.
To pressure test the gearbox, install the pressure
test sleeves (G‐R P/N 29511-914) over the input
and output shafts, and secure them with the cap­
screws and lockplate washers; torque the cap­
screws to 90 ft. lbs. (1080 in. lbs. or 12,4 m. kg.).
Remove the breather vent (8) and install a valve
stem and air pressure gauge in the hole. Apply
“Loctite Pipe Sealant with Teflon” or equivalent
compound to the threads before installation.