Bosch Rexroth M4-12 - Fixing the Control Block in Place

26/32 General instructions for assembly
Bosch Rexroth AG, M4-12, RE 64276-01-R/10.2017
5.3 Fixing the control block in place
• The fixing threads are located on the underside of the inlet and end plate.
• Cylindrical metric screws (M) with strength class 8.8 or 10.9 should be used.
– Maximum surface roughness RZ max. 63.
• Flatness of the surface 0.1mm.
1. Align the control block with the fixing threads facing the fixing through-holes.
2. Screw the screws into the fixing threads clockwise and by hand.
3. Pre-tension the screws with a torque of 5
+1
Nm.
4. Tighten the fixing screws clockwise using a torque wrench in accordance with
Table 22.
Table 22: Tightening torques
Screw Tightening torque Minimum screw-in
depth of the thread
Through-hole diameter
M10 (8.8)
41
±2
Nm
15 mm
11
+0.2
mm
M10 (10.9)
60
±3
Nm
15 mm
11
+0.2
mm
Fig. 14: Fixing the control block in place
Preparation
Assembly