Axial Piston Fixed Displacment Motor AA2FM (A2FM) - Group VH A/S

B4B1 B2B3RA 91 001/07.05 AA2FM Bosch Rexroth Corp. 33/36Counterbalance Valve BVDFastening the counterbalance valveWhen delivered, the counterbalance valve is fastened to themotor by 2 tacking bolts. Do not remove the tacking boltswhen attaching the working lines. If the counterbalance valveand motor are delivered separately, the counterbalance valvemust first be fastened to the motor port plate using the tackingbolts provided. In both cases, the final fastening of the counterbalancevalve to the motor is done using the threaded connectionof the working lines, e.g. using SAE flanges. A total of 6bolts with thread lengths B1+B2+B3 and 2 bolts with threadlengths B3+B4 will be required.When tightening the bolts, it is vital that the sequence (1 to 8)as shown in the diagram is adhered to and carried out in twophases.In the first phase the bolts should be tightened to 50% of theirtightening torque before being tightened to maximum tighteningtorque in a second phase (see table below).Thread 1 ) Property class Tightening torqueM10x1.5 10.9 55 lb-ft (75 Nm)M12x1.75 10.9 95 lb-ft (130 Nm)M14x2 10.9 150 lb-ft (205 Nm)1 ) fastening screws according to DIN 912Detail YPlease request a certified installation drawingbefore finalizing your design.Dimensions in inches and (millimeters)2673Y4851Flange, e.g.SAE-flangeTacking bolts(M6x1, DIN 912)Size 28, 32, 45 56, 63 80, 90Dim. B1 1 ) M10x1.50.67 deep(17 deep)M10x1.50.67 deep(17 deep)M12x1.750.71 deep(18 deep)107, 125,160, 180M14x20.75 deep(19 deep)Dim. B2 3.07 (78) 2 ) 2.68 (68) 2.68 (68) 3.35 (85)Dim. B3 customer-specific (dependent on flange)Dim. B4 M10x1.50.59 deep(15 deep)M10x1.50.59 deep(15 deep)M12x1.750.63 deep(16 deep)M14x20.75 deep(19 deep)Fastening threads according to DIN 13, tightening torque seegeneral notes on page 361 ) minimum reach required 1 x2 ) with adapting plate