Mounting Of Spline Motor - Bosch Rexroth Hagglunds CA Series Installation & Maintenance Manual

44/76 Hägglunds CA Radial piston hydraulic motor | Installation
Bosch Rexroth AB, Version 11.2019, RE 15305-WA
7.4.5

Mounting of spline motor

Mounting of spline motor with torque arm to the driven shaft
The motor can be mounted to the driven shaft with or without a mounting tool,
but the use of a mounting tool is recommended since it makes the work easier.
This instruction is related to the pictures Fig. 40, Fig. 41.
1. Mount torque arm to the motor as described in chapter 7.4.1.
2. Lubricate the o-ring (5) and make sure it is undamaged. The O-ring is delivered
with the motor.
3. Check shaft/splines for burrs, to minimize the risk to damage the o-ring.
Lubricate shaft/splines with hydraulic fluid.
4. Remove the end cover (1) together with screws and washers.
5. Remove the plug G1˝(2).
6. Mark spline tooth location on the outside of the cylinder block to assist
alignment during installation.
7. Align the motor with the driven shaft.
8. Install the assembly tool by passing the tie rod through the centre of the
motor, and screw it into the driven shaft by using a wrench at the key grip at
the end of the assembly tool. Assemble the washer and then the nut tight to
the bearing retainer (3).
Rotate the cylinder block/motor to line up the splines with the drive shaft.
9.
10. Pull the motor onto the shaft by turning the nut on the assembly tool.
11. Remove the assembly tool.
12. Fill up with hydraulic oil to the G1˝ thread (clearence between the shaft and
the bearing retainer). Oil volume, see Table 16.
13. Fix the motor to the driven shaft with the mounting kit (4) which consists of a
M20 screw and an O-ring. Torque 385 Nm (284 lb·ft).
14. Remount the end cover (1). Torque 80 Nm (59 lb·ft).
Table 16: Oil Volume for lubrication of spline connection, torque arm mounting
Frame Horizontal mounted
size
Litre
CA 50 0.2
CA 70 0.5
CA 100 0.8
CA 140 0.7
CA 210
1.0
Vertical with motor with
motor shaft downwards
US gallon Litre
0.05 0.6
0.13 1.2
0.21 0.8
0.18 0.7
0.26 1.0
Vertical mounted with
motor shaft upwards
US gallon Litre
0.16 0.2
0.32 0.2
0.21 1.6
0.18 1.6
0.26 2.3
US gallon
0.05
0.05
0.42
0.42
0.61