2.14 2646E2 Drive Motor (Rexroth)

Disassembly
1. Place the drive motor vertically in a vice with the output
shaft pointing downwards.
2. Using a 17mm spanner wrench loosen the 7 cover
bolts. remove the cover with the bolts.
3. Lift off the displacer and the intermediate disk.
4. Remove the cardan shaft.
5. Remove the control sleeve.
6. Remove the check valves consisting of ball, limit,
stop and filler (filler only when one valve is installed).
7. Turn the drive around in the vise so that the output
shaft is facing up. Remove the keyed shaft.
Assembly
1. The output shaft with pressed on and adjusted
tapered roller bearing and cylindrical shaft is to be
centrically positioned onto the housing edge. Press
the complete assembly into the housing to the limit
stop with the help of the press.

NOTE: Do not jam.

2. Before mounting the flange, put a mounting sleeve
onto the shaft.

NOTE: Be sure that the seal is thoroughly oiled.

3. Position the flange with slight pressure into the
housing. Take care to avoid damage to the seals.
4. Screw in the 8 socket head cap screws. Using a
Torque wrench, tighten to 80 in lb (8 Nm).
5. After turning the motor around introduce the control
sleeve. Make sure that the cylindrical roll of the output
shaft clicks into the groove of the control sleeve.
6. Insert the O-ring into the housing.
7. Installation of the check valves:
Insert 2 ball valves and carefully drive them in using
a mandrel.
8. Insert the limit stop and put the filler into position for
the lower valve.
9. Put the cardan shaft into position. Note that the
marked tooth must comply with the marking on the
control sleeve.
10. Position the intermediate disk.
11. Insert the O-ring into the recess of the displacer.
12. Place the displacer so that the tooth marking on the
cardan shaft on the displacer side meshes with the
tooth base of the rotor gearwheel that is located
centrally at the lowest point in the outer profile of the
rotor gearwheel. This is only possible at 6 positions.
13. Insert O-ring.
14. Insert spacer.
15. Remount cover, tighten the 7 hexagon bolts using a
torque wrench (torque to 60Nm 43 ft lb). The output
shaft should turn easily.