Midland SPD-6 - Hydraulic Proportional Control Module

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Model SPD-6
10. Install new O-ring (B0029) and plastic cap (B0040) to solenoid.
Proportional control block assembly
B0050
B0010
B0035A
B0010
E00T3
C0060A
C0060
C0060
E00T2
C0025
C0050A
C0060A
C0050
P106 521E
26 mm
1/4 in
1/8 in
1/8 in
C0100
B0027
5 mm
3 mm
3 mm
1/8 in
C0060
C0060A
B0025
B0040
B0029
B0027
B0028
B0020
B0020A
4mm
6 N•m
[4 lbf•ft]
8 N•m
[6 lbf•ft]
40 N•m
[30 lbf•ft]
8 N•m
[6 lbf•ft]
8 N•m
[6 lbf•ft]
3.5 N•m
[2.6 lbf•ft]
8 N•m
[6 lbf•ft]
6 N•m [4 lbf•ft]
6 N•m [4 lbf•ft]
Hydraulic proportional control module
Disassembly
1. Use a 4 mm internal hex wrench to remove screws (B0050). Remove actuator (B0010).
2. Remove and discard O-ring (B0035A).
3. Using a 1/4 in internal hex wrench remove plug (C0050) and discard O-ring (C0050A).
4. Use a 5 mm internal hex to remove shuttle valve (C0025).
5. Using a 1/8 in internal hex wrench, remove 3 plugs (C0060) and discard O-rings (C0060A).
6. Using a 3 mm internal hex, remove 2 orifices (E00T3 and E00T2).
Inspection
Inspect the machined surfaces on the control and the endcap. If you find any nicks or scratches, replace
the control or endcap assembly. Check that shuttle ball moves freely in housing (C0025).
Service Manual H1B 060/080/110/160/250 Bent Axis Motors
Minor repair
11024924 • Rev CB • February 2015 49