GORMAN-RUPP 03H1-GR, Инструкция по установке, эксплуатации и обслуживанию

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0 SERIES OM-01194
MAINTENANCE & REPAIR PAGE E - 10
impeller or binding and/or excessive wear
will result.
Align the impeller and key (20) with the shaft key­
way, and press the impeller onto the shaft until fully
seated.
Be sure the seal spring seats squarely
over the shoulder on the back of the impeller.
NOTE
After the impeller has been installed, check for free
rotation. Correct any scraping or binding before fur­
ther reassembly.
Align the hole in the impeller washer (19) with the
key, and install the washer. Immobilize the drive
shaft (14, Figure 2), and install the impeller screw
and lockwasher (21 and 22). Torque the impeller
screw to 20 ft. lbs. (240 in. lbs. or 2,8 m. kg.).
Pump Casing and Wear Ring Installation
(Figure 1)
If the wear ring (24) was removed for replacement,
press the replacement ring into the pump casing
until it seats squarely against the shoulder bore.
The wear ring must seat squarely in the
casing bore or binding and/or excessive
wear will result.
For maximum pump efficiency, the impeller should
be centered within the pump casing. To verify im­
peller positioning, measure the pump casing and
impeller as shown in Figure 4. Use these measure­
ments to calculate the required impeller location
(dimension E). Add or remove gaskets in the pump
casing gasket set (44) to obtain dimension E.
NOTE
When calculating pump casing positioning, figure
30% compression for pump casing gaskets.
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.