Displacement Limiter; Disassembly; Inspection; Reassembly - Danfoss 45 Frame K2 Series Service Manual

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

Displacement limiter

Servo piston

© Danfoss | April 2017

Disassembly

1. Remove the adjustment seal/nut (L030).
The L030 adjustment seal/nut serves as a locking seal/nut, preventing the L040 screw from backing
out.
2. Remove the adjustment screw (L040). Remove plug (L010) with a 1 1/4 in. wrench. Discard the O-ring
(L010A).

Inspection

Inspect the displacement limiter screw threads (L040). Ensure that the screw is not bent. Also, inspect
the seal/nut (L030) for irregular wear. Replace if necessary. Replace the O-ring (L010A).

Reassembly

1. Install displacement limiter screw (L040) into plug (L010).
2. Install new O-ring (L010A) onto plug (L010). Thread plug with limiter into endcap. Torque to 77 N•m
[57 lbf•ft].
3. Turn adjustment / seal nut (L030A) onto displacement limiter.
4. Using a 19mm exter hex wrench torque the adjustment seal/nut (L030) to 54 N•m [40 lbf•ft].
Disassembly
AX00000301en-US0101 | 27