Torque Sequence
2
3
4
5
6
1
P106231
Control Solenoids
Removal
1. Disconnect electrical connection and remove the three cap screws (D050) using a 4 mm internal hex
wrench.
2. Remove the solenoid (D025) and O-ring (D025A). Discard the O-ring.
3. If necessary, remove the coil using a 12 point 26 mm socket.
Inspection
Inspect the machined surface on the control. If you find any nicks or scratches, replace the
component.
Reassembly
1. Lubricate new O-ring (D025A) using petroleum jelly and install.
2. Install solenoid with three cap screws (D050) using a 4 mm internal hex wrench. Torque screws to 5
N•m [4 lbf•ft].
3. Install coil using a 12 point 26 mm socket. Torque coil nut to 5 N•m [3.7 lbf•ft].
4. Reconnect electrical connections and test the pump for proper operation.
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
H1 Pumps 069/078, 089/100, 115/130, 147/165, 210/250
Minor Repair
42 |
©
Danfoss | May 2018
520L0848 | AX00000087en-US0308
