Gorman-Rupp Pumps 03H1-GL 282480 and up - Manual (Page 30)

0 SERIES OM-01193
MAINTENANCE & REPAIR PAGE E - 10
D
B
2
A B
2
C D
E
Step 2 Step 1 Step 3
A+
B
2
C+
D
2
E = -
Figure 4. Centering Impeller Within Pump Casing
Install the calculated thickness of pump casing
gaskets. Secure the pump casing to the seal plate
with the nuts (33).
Installing Pump and Gearbox
(Figure 1)
Secure the pump and gearbox to the truck chassis
with the previously removed hardware. Be sure to
install any leveling shims used under the casing
mounting feet.
Reconnect the P.T.O. shaft the the gearbox drive
shaft and check the alignment as described in IN­
STALLATION, Section B.
Install the suction and discharge lines and open all
valves. Make certain that all piping connections are
tight, properly supported and secure.
Be sure the pump and gearbox have been prop­
erly lubricated (see LUBRICATION).
Fill the pump casing with clean liquid. Reinstall the
fill plug (6) and tighten it.
Refer to OPERATION, Section C, before putting
the pump back into service.
GEARBOX DISASSEMBLY
(Figure 2)
When the pump is properly operated and main­
tained, the gearbox should not require disassem­
bly. Disassemble the gearbox only when there is
evidence of wear or damage.
Gearbox disassembly in the field is not rec­
ommended. These operations should be
performed only in a properly equipped
shop by qualified personnel.
If the gearbox requires disassembly, first disas­
semble the pump components as indicated in
PUMP AND SEAL DISASSEMBLY.
Before attempting to disassemble the gearbox, re­
move the lower most pipe plug (23) and drain the
lubricant. Clean and reinstall the pipe plug.
With the pump end components removed, use a
hammer and punch to drive the dowel pins (31) out
of the gearbox. Remove the hardware (28, 29 and
30) securing the seal plate (27) to the gearbox
housing (25). Slide the seal plate and oil seal (3) off
the shaft. Remove the seal plate gasket (26). In­
spect the oil seal (3) and, if replacement is re­
quired, press it from the seal plate.
Remove the shaft key (15). Remove the hardware
(19 and 20) and slide the cover plate (9) and as­