For exact positioning, place the MDC alignment tool (see dimensioned diagram , next page) over the
exposed summing link pin. If MDC alignment tool is not available, skip to MDC alignment without tool
(steps 3a-5a).
2. Slide the MDC (D070) over the tool while engaging the tool with the slot in the MDC cam, and allow it
to pass through the hole on the front of the MDC housing.
Link pin into cam slot
3. Install the control screws (D002) and torque to 15-18 N•m [11-13 lbf•ft].
Service Manual
Series 42 Axial Piston Closed Circuit Pumps
Minor Repair
520L0638 • Rev 0300 • July 2015 41