Fixing The Control Block In Place - Bosch Rexroth M4-12 Repair Manual

26/32 General instructions for assembly
Preparation
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
4.
Tighten the fixing screws clockwise using a torque wrench in accordance with
Table 22.
Table 22: Tightening torques
Screw Tightening torque
±2 Nm
M10 (8.8)
41
M10 (10.9) ±3 Nm
60
Fig. 14: Fixing the control block in place
+1 Nm.
Minimum screw-in Through-hole diameter
depth of the thread
11
15 mm
15 mm 11
+0.2 mm
+0.2 mm