Reassembly
1. Install the servo control orifice (G020). Install the gain orifice (H030).
2. Install plugs (C129) and (C107).
3. Install spool (C122) spherical end first, into the spool bore. Install spring (C125).
4. Install the pressure limiter adjuster (C128).
5. Install the spring guide (C123) and spring (C124). Ensure the spring guide is properly seated on the
spools spherical head.
6. Install the solenoid cartridge with its O-ring.
7. Install the coil and O-rings. Ensure that the O-rings are correctly installed. Ensure the coil connector is
in right orientation.
8. Install the coil plastic nut (QC125 ).
Use the proper wrench, do not damage the plastic nut.
9. Using petroleum jelly to retain them, install the four interface O-rings (C200) in the recesses on the
control housing.
10. Install the control assembly onto the endcap using four screws (C300). Torque screws in a criss-cross
pattern and re-torque the first screw to ensure proper torque retention.
Servo Control Orifice
Servo Control Orifice Disassembly
1. Remove four screws (C300).
2. Remove the control and discard the four O-rings (C200).
3. Remove PC plug (C103), and PC spool (C132) from the control housing.
Note the orientation of the spool for reassembly.
4. Remove backup plug (G030), and orifice (G020).
Control assembly
P108 669E
C103
C132
C300
C200
G020
G030
Service Manual
Series 45 Frame K2 Open Circuit Axial Piston Pumps
Minor repair
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©
Danfoss | April 2017
AX00000301en-US0101
