Hc-Edc And Edc Module - Danfoss Series 42 Service Manual

Service Manual
Minor Repair

HC-EDC and EDC Module

Series 42 Axial Piston Closed Circuit Pumps
4a. Adjust the control position so that the summing link pin is aligned as described above, and torque
bolts (D002) to 17 N•m [13 lbf•ft].
5a. Replace the cover plug (D003) and torque to 13 N•m [9.5 lbf•ft].
Continue above to step 6.
The High Current Electric Displacement Control (HC-EDC) and the Electric Displacement Control (EDC)
actuate the control spool via a connection to the summing link pin. The following procedure describes
how to remove and replace the control housing.
Removal
1. Clean the external surfaces of the pump. If necessary, remove control input.
2. Being careful not to lose the backlash spring (D91), remove the control spool plugs (D032 and D035).
3. Remove the seven (7) control bolts (D081/D082). Note the position of the different length screws.
Remove the control and control gasket (E001) from the pump.
EDC module assembly
D081
5 mm
T-30
17 N•m
[13 lbf•ft]
E001
D035A
D035
5/16 in
70 N•m
[52 lbf•ft]
520L0638 • Rev 0300 • July 2015
D082
5 mm
T-30
17 N•m
[13 lbf•ft]
7/8 in
70 N•m
[52 lbf•ft]
D032
D032A
Hold D011
D91
(and D090)
in position
Summing
link pin (D011)
MUST enter
the hole in the
control slider
block
P108 085E
43