Wrench size and torque
Item Description Wrench size Torque
D065 O-ring plug 3/16 internal hex 12 N•m [9 lbf•ft]
D200 Feedback pin 13 mm deep well socket 22.5-27.5 N•m [16.6-20.3 lbf•ft]
D250 Cap screw 5 mm internal hex 13.3 N•m [9.8 lbf•ft]
D735 Plug 3/4 inch 30 N•m [22 lbf•ft]
F00A, F00B Servo orifice
3 mm internal hex 2.5 N•m [1.8 lbf•ft]F00P Supply orifice
F00T Tank orifice
1. Using a 5 mm internal hex wrench, remove the six cap screws (D250)
2. Remove the control module and gasket (D150) and 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 the orifices for reinstallation.
4. If screen (D084) is clogged, use a hook to remove retaining ring (D098) and screen.
5. Remove and discard screen (D084).
6. Before removing the control, note the position of the control lever for reassembly.
The functionality of the MDC control and the neutral position of the pump can be lost.
Do not disassemble the MDC control.
MDC Repair Legend, Wrench size and Torque
D084 Screen
D80 Solenoid
D81 O-ring
D098 Retaining ring
D750 Neutral start switch
D751 O-ring
Wrench size and torque
Item Description Wrench size Torque
D065 O-ring plug 3/16 internal hex 12 N•m [9 lbf•ft]
D200 Feedback pin 13 mm deep well socket 22.5-27.5 N•m [16.6-20.3 lbf•ft]
D250 Cap screw 5 mm internal hex 13.3 N•m [9.8 lbf•ft]
D735 Plug 3/4 inch 30 N•m [22 lbf•ft]
F00A, F00B Servo orifice
3 mm internal hex 2.5 N•m [1.8 lbf•ft]F00P Supply orifice
F00T Tank orifice
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.
Service Manual
H1P 069—H1P 250 Axial Piston Single Pumps
Minor Repair
46 |
©
Danfoss | September 2020 AX152886482551en-000504
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