Minor Repair; Charge Pump - Danfoss DDC20 Service Manual

Service Manual
DDC20 Axial Piston Pumps

Minor Repair

Charge Pump

© Danfoss | August 2017
Disassembly
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).
Inspection
Inspect all machined surfaces for wear or damage. If any nicks, scratches or wear are found replace
the cover and/or gerotor.
Assembly
1. Install drive pin (K050) into the shaft.
2. Lubricate and install the gerotor.
3. Lubricate and install O-ring into cover (K105).
4. Install the cover in its original position.
5. Install screws (K200). Torque screws per table.
Charge pump
K050
K200
K150
K100
K010
P109623
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