Charge Pressure Relief Valve - Danfoss DDC20 Service Manual

Service Manual
DDC20 Axial Piston Pumps
Minor Repair

Charge Pressure Relief Valve

22 | © Danfoss | August 2017
4. Use a magnet to remove the valves (N110/P110) and springs (N100/P100).
High pressure relief valves
QJ020
J150
P100
P110
HPRV plug
Item
J140/J150
Inspection
Inspect the plug and internal parts of cartridge . If parts are worn or damaged, replace the entire
cartridge.
Assembly
1. Lubricate and install new O-rings (J140/J150) onto each plug.
2. Verify that the springs (N100/P100) are properly retained on the valves (N110/P110).
3. Install the valves in their original location as noted during disassembly. Ensure each valve assembly
moves freely in its bore.
4. Torque plugs per table.
5. Operate vehicle/machine through full range of controls to ensure proper operation. Check for leaks.
Removal
1. Remove the charge pressure relief valve plug (J320). Remove and discard O-ring (QJ040).
2. Use a magnet to remove the spring (L200).
3. Use a magnet to remove the charge relief poppet (L100).
Wrench size
24 mm
N110
N100
J140
QJ020
P109625
Torque
78 N•m [57 lbf•ft]
L1120413 | AX00000135en-US0302