Minor Repair; Charge Pump - Danfoss DDC20 Service Manual

Service Manual
DDC20/24 Axial Piston Pumps

Minor repair

Charge pump

14 | © Danfoss | August 2019
DDC20/24 charge pump disassembly
Charge pump cover orientation
Clockwise rotation
Flat
side
Please note the orientation of the charge pump during disassembly (clockwise and counterclockwise).
1. Position the pump with the shaft end pointing down.
2. Mark the orientation of the charge pump cover on the endcap for proper reassembly.
3. Remove cap screws (K200). Remove the charge pump cover (K150).
4. Remove and discard O-ring (K100).
5. Remove gerotor (K010). Push out the drive pin (K050).
DDC20/24 machined surface inspection
Inspect all machined surfaces for wear or damage. If any nicks, scratches or wear are found replace
the cover and/or gerotor.
DDC20/24 charge pump assembly
1. Install drive pin (K050) into the shaft.
2. Lubricate and install the gerotor (K010).
3. Lubricate and install O-ring into cover (K100).
4. Install the housing in its original position (K150).
5. Install screws (K200). Torque screws per table.
Counterclockwise rotation
L1120413 | AX00000135en-000401
Flat
side
P109624