14
3. Assembly of Pump – See Figure 7. Begin assembly by
pressing the shaft into the front bearing while supporting the
bearing inner race. Next, press the inner bearing into the body,
using a driver which contacts the outer race only. Be certain
both bearings are firmly seated.
NOTE
Before assembling the shaft seal, determine the
correct position of the sealing lip. (See Figure 8.)
Double lip seals are assembled with the spring toward
the pumping cartridge. Single lip seals have two
pressure holes, which are assembled toward the shaft
end of the pump.
Double Lip Seal
(Assemble with spring
toward cover end of pump)
Figure 8
Single Lip Seal
(Assemble with pressure
holes toward shaft end
of pump)
Press the seal firmly in place and lubricate the lip with
petroleum jelly or other grease compatible with the system
fluid. Slide the drive shaft into the body until the bearing is
seated. Tap lightly on the end of the shaft is necessary.
Install the snap ring.
Install new “O” rings in the body and cover. Insert the ring
locating pins in the body and assemble the ring so that the
arrow on the perimeter points in the direction of rotation. Check
the assembly against Figure 9. Install the rotor on the shaft and
insert the vanes in the rotor slots. Be certain the radius edges
of the vanes are toward the cam ring.
View from Cover End
Right Hand Rotation
Left Hand Rotation
Figure 9
Place the pressure plate on the locating pins and flat against
the ring. Use a small amount of petroleum jelly or grease to
stick the spring in the recess in the pressure plate. Carefully
install the cover with the outlet port in the correct position.
Tighten the cover screws to the torque shown in Figure 8.
Turn the shaft through by hand to insure that there is no
internal binding. Install the shaft key.
Assemble the pump to its mounting flange or foot mounting.
If a gasket is used, be certain it is flat to avoid misalignment
of the shaft.
Section VII – Testing
If a test stand is available, the pump should be tested at the
recommended speeds and pressures shown in the
installation drawing (see Table 1). If a test stand is not
available, use the machine or vehicle start-up procedure and
follow the general information outlined in section IV.H.
Form No. 00-000
Copyright Eaton Corporation, 0000
All rights reserved.
Printed in U.S.A
Eaton Hydraulics
15151 Highway 5
Eden Prairie, MN 55344
Telephone: 612 937-7254
Fax: 612 937-7130
www.eatonhydraulics.com
46 New Lane, Havant
Hampshire PO9 2NB
England
Telephone: (44) 170-548-6451
Fax: (44) 170-548-7110
