Danfoss 51 Series Service Manual page 32

Service Manual
EE Control
32
Series 51 Electrohydraulic Proportional Controls Service Manual
4. Install the spring guide (M20).
5. Install pin (M26). and Install piston (M24).
6. Make sure pin (M26) fits into 4-way valve (F32).
C
Caution
Read BLN-10181 for minor repair instructions for the F32 4-way valve, threshold spring, and ramp
spring components, if their repair is necessary
7. Using petroleum jelly to hold them in place, install new O-rings (G36, G38, G42) or gasket (G420).
8. Install screws (M10). Refer to table for wrench size and torque.
9. Lubricate and install new O-ring (M50A).
10. Install plug (M50). Using a 1/8-inch internal hex wrench, torque to 6 N•m [4 lbf•ft].
11. Install check ball (M47).
12. Install the check ball seat (M46). Using a 5mm internal hex wrench, torque to 8 N•m [6 lbf•ft].
Newer units have a check valve assembly at M46.
13. Lubricate and install the new O-ring (M48A).
14. Install plug (M48). Using a 1/4-inch internal hex wrench torque to 37 N•m [27 lbf•ft].
15. Install gasket (M14). Install cover block (M12).
16. Install screws (M28). Using a 4 mm internal hex wrench torque to 6.4 N•m [4.7 lbf•ft].
17. Install adjuster screw (M18). Adjust to previously marked position.
18. Using a 3 mm internal hex to hold screw (M18) in place, install locknut (M16). Torque to 15 N•m [11
lbf•ft].
19. Install the PCP (M30).
20. Using a 5/32-inch internal hex wrench install screws (M32) and torque to 6 N•m [4 lbf•ft].
11009448 • Rev BA • July 2014