Pcor; Optional Pcor Housing Repair; Disassembly; Inspection - Danfoss 51 Series Service Manual

Service Manual

PCOR

Optional PCOR Housing Repair

Series 51 Electrohydraulic Proportional Controls Service Manual

Disassembly

1. Remove plugs (N27). Remove and discard O-rings (N27A).
2. Using a 1 inch hex wrench, remove plug (N23). Remove and discard O-ring (N23A).
3. Remove locknut (N14).
4. Remove adjustment plug (Z00). Remove and discard O-ring (N16J).
5. Remove spring (N18).
6. Remove spool and spring guide assembly (N20).
7. Remove screws (N29).
8. Remove and discard O-rings (N24P, N82).
9. If present, remove orifices (U6, U7).
PCOR
U7
U6
N27
N23
Legend
Item
N27
N23
U6, U7
N29
N14

Inspection

Clean and inspect components for damage or foreign material. Replace damaged parts.

Assembly

1. If previously removed, Use a 3mm internal hex wrench to install orifices (U6, U7). Torque to 6 N•m [4
lbf•ft].
2. Using petroleum jelly to retain them, install new interface O-rings (N24P, N82).
11009448 • Rev BA • July 2014
N82
N20
N24P
N8 7
N27
Wrench size
1/8 inch internal hex
1 inch
3 mm internal hex
5 mm internal hex
1-5/16 inch
N16J
Z00
N18
N29
P106 384E
Torque
7 Nm [4 lbf•ft]
40 Nm [30 lbf•ft]
6 Nm [4 lbf•ft]
16 Nm [12 lbf•ft]
N/A
N14
15