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

Installation | Hägglunds CA Radial piston hydraulic motor
7.4.6

Mounting of motor with brake

Torque arm mounting of motor with MDA brake
Motors with MDA brake, must have the brake disassembled according to Fig. 43
and disassembly description in chapter 7.4.8.
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 plug G1˝.
5. Mark spline tooth location on the outside of the cylinder block to assist
alignment during installation.
6. Align the motor with the driven shaft.
7. Rotate the cylinder block/motor to line up the splines with the drive shaft.
8. Pull the motor onto the shaft.
9. Fill up with hydraulic oil to the G1˝ thread (clearence between the shaft and
the MDA disc centre). Oil volume, see Table 16.
10. 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).
11. Remount the brake according to assembly description in chapter 7.4.8.
5
Fig. 43: Mounting of motor with MDA brake
Oil filling of spline
4
RE 15305-WA, Version 11.2019, Bosch Rexroth AB
47/76
DD00104861