Inspection; Reassembly; Auxiliary Pads; Disassembly - Danfoss 45 Frame K2 Series Service Manual

Service Manual
Series 45 Frame K2 Open Circuit Axial Piston Pumps
Minor repair

Auxiliary pads

28 | © Danfoss | April 2017
1. Remove plug (L010) with a 1 1/4 in. wrench. Discard the O-ring (L010A).
2. Remove servo piston (P025) from housing.

Inspection

Check the servo piston assembly (P025) for any obvious wear or damage. Check the corresponding
endcap bore for galling or excessive wear. Discard the piston if damaged. Replace the servo piston-rings.

Reassembly

1. Lubricate servo piston and install in the housing.
2. Install plug.

Disassembly

Auxiliary mounting pads may be installed on pumps equipped with through-drive radial ported endcaps.
Follow these steps to either remove, replace, or exchange auxiliary mounting pads.
1. Remove two screws (J130) retaining the cover plate (J110) or auxiliary pump (not shown). Remove the
shipping cover or auxiliary pump and its sealing O-ring (J120). Discard the O-ring.
2. Remove the drive coupling (J140).
3. Remove the four screws (J100) retaining the pad adapter (J085) to the endcap. Discard the two pad
adapter O-rings (J090, J095).
4. Lubricate new O-rings with petroleum jelly. Install the pad adapter to the endcap.
5. Install the four screws and torque to 54 N•m [39 lbf•ft].
6. Install the drive coupling.
7. Install shipping cover or auxiliary pump with new O-ring.
C
CAUTION
Shipping cover is intended only to retain coupling during shipment and storage. Do not operate
pump with coupling and shipping cover installed.
P109065
AX00000301en-US0101