Return to Master Table of Contents 2 2 3 3 1 1 ASS0320L Figure 12 Refer to the illustration of the pump regulator control valve (Figure 12) for the location of adjustment screws (1, 2 and 3). There are three different adjustments, Qmax, Pd-Q, adjustment screws (1, 2 and 3). Each one of the adjustment procedures could affect the setting of the others. Check and record the arm dump speed performance test before and after input power adjustment, whether or not a flow meter is used. NOTE: Regulator adjustments affect total cumulative horsepower, since each regulator compensates for the output of the other.
It is not necessary to adjust both regulators at the same time, but after checking or adjusting one of them, the remaining unit should also be checked. Page 18 Hydraulic System Troubleshooting, Testing and Adjustment