TSE DP20-4H, Owner'S Manual

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4. Lubricate new O-ring (D025A/QD26) using petroleum jelly and install.
5. Install solenoid/actuator housing with three cap screws (D050) using a 4 mm internal hex wrench.
Torque screws to 5 N•m [4 lbf•ft].
6. Reconnect electrical/hydraulic connections and test the pump for proper operation.
For repair part information, see the Parts Manual for your model.
P109511
D025A
D050 (3X)
D025
D025A
D050 (3X)
D025
EDC
HDC
D050
QD77
QD72
QD77
QD72
QD26
D050
QD26
Legend
Item Description Wrench size Torque
D025 Solenoid - -
D025A O-ring - -
D050 Cap screw 4 mm internal hex 5 Nm [4 lbf•ft]
QD26 O-ring - -
QD77 Actuator housing - -
QD72 Actuator pin - -
MDC Control
Removal
Refer to exploded diagram, below.
1. Using a 5 mm internal hex wrench, remove the six cap screws (D250).
2. Remove the control module and gasket (D150). Discard the gasket.
3. If necessary, remove servo orifices (F00A, F00B), supply orifice (F00P), and tank orifices (F00T) using a
3 mm internal hex wrench. Tag and number them for reistallation.
4. If screen (D084) is clogged, use a hook to remove the retaining ring (D098) and the screen. Discard
the screen and replace with a new screen.
5. Before removing the control, note the position of the control lever for reassembly.
C
Caution
Do not disassemble the control, otherwise the functionality of the control and the neutral position of
the pump can be lost!
Service Manual
MP1
Minor Repair
48 | © Danfoss | July 2017 AX00000244en-US0103