MDC Control Assembly
Ensure you install dowel pins (D300) in housing before installing control.
The pump will lose control, causing a potentially hazardous situation.
If a feedback pin comes off during operation, ensure the feedback pin is properly torqued before
continuing with reassembly.
1. Install a new gasket (D150).
2. If you removed screen (D084), install a new one with the mesh facing outward.
3. Install retaining ring (D098).
Proper screen orientation
D084
D084
Incorrect screen
orientation
Correct screen
orientation
D098
Remove plug on top of control to ensure the swashplate feedback pin is properly positioned in the
center of the control module when installing control.
4. If previously removed, install orifices using a 3 mm internal hex wrench and torque to 2.5 N•m [1.8
lbf•ft].
5. Install the control module and six cap screws (D250).
6. Using a 5 mm internal hex wrench, torque the cap screws (D250) to 13.3 N•m [9.8 lbf•ft].
Torque sequence
2
3
4
5
6
1
Service Manual
H1P 045/053/060/068 Axial Piston Single Pumps
Minor Repair
©
Danfoss | June 2020
AX152886481964en-000405 | 51