Assembly; Installing The Solenoid Valve - Danfoss 51 Series Service Manual

Service Manual
J1, J2, J3, J4 Controls
Series 51 Hydraulic Proportional Controls Service Manual

Assembly

1. Using a 3mm internal hex, install orifices (T4, T5, U6, U7). Torque to 3.7 Nm [2.7 lbf•ft].
2. Lubricate and install O-rings (F324).
3. Install the 4-way valve assembly (F32).
4. Using petroleum jelly, lubricate and install a new O-rings (G38, G36 and G42) or install gasket (N240).
5. Install the control assembly to the end cap.
6. Install screws (M150 and M151).
7. Torque screws (M150 and M151) to:
•
78 N•m [58 lbf•ft]. Use an 8mm internal hex wrench for 80 cc and 110cc motors.
•
110 N•m [81 lbf•ft]. Use a 10 mm internal hex for 160cc and 250ccmotors.
8. Install spool (N32).
9. Lubricate and install O-rings (N34A and M22). Using a 1/4 internal hex wrench, install plugs (M22 and
N34). Torque to 25 Nm [18 lbf•in].
10. Lubricate O-ring (M23A). Using a 3/8 internal hex wrench, install plug (M23). Torque to 95 Nm [70
lbf•in].
11. Lubricate and install 15 O-rings (M24A). Using an 1/8 internal hex wrench, install 15 plugs M24).
Torque to 6 Nm [4 lbf•in].
12. Lubricate and install O-rings (N84A) or (N33A). Using a 7/16 wrench, install plugs (N84) or (N33).
Torque to 12 Nm [9 lbf•in].
13. Install the PCOR spool assembly (M20).
14. Install spring (M18). Install adjuster (Z*).
15. Lubricate and install O-ring (M16).
16. Install lock nut (M14). Torque to 54 Nm [40 lbf•in].
C
Caution
Readjust the PCOR to its proper setting

Installing the Solenoid Valve

Solenoid for J1, J2
Lubricate O-rings. Use a 7/8 wrench to install the valve. Torque to 20 Nm [15 lbf•ft].
Solenoid for J3, J4
Use a 3 mm internal hex wrench to install screws (M15). Torque to 2.8 Nm [2.1 lbf•ft].
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