Assemble Priority Valve Parts And P-Check To Housing - Danfoss VSPP Service Manual

Service Manual
VSPP Steering unit
VSPP assembly

Assemble priority valve parts and P-check to housing

28 | © Danfoss | November 2019
VSPP priority valve and P-check parts
Wrench size and torque
Item Description
25 Plug with O-ring
21.2 Orifice, PP
21.3
Orifice, Dynamic
24
Plug with O-ring
10
Orifice, LS
87
Screw with O-ring
1. Assemble the spool (21) with orifices (21.2) and (21.3) to the spool (21.1).
a) Before assembling orifices (21.2 and 21.3) to the spool: fix the spool in a vice with aluminum jaws.
b) Screw in PP orifice (21.2) using a 2mm Hex key.
Tightening torque: 1 ± 0.1 N•m [8.9 ± 0.9 lbf•in]
c) Screw in dynamic orifice (21.3) using a 3mm Hex key.
Tightening torque: 3.5 ± 0.5 N•m [31 ± 4.4 lbf•in]
2. Screw in the LS orifice (10) into the thread hole in the priority spool bore of housing (2) using a 2mm
Hex key.
Tightening torque: 1 ± 0.1 N•m [8.9 ± 0.9 lbf•in]
3. Screw in the plug (24) using an 8mm Hex key.
O-ring (24.2) is fitted to the plug.
Tightening torque: 40 ± 10 N•m [354 ± 88 lbf•in]
4. Insert the priority valve spool with orifices (21).
5. Insert the spring (23).
Wrench size
22 mm Socket spanner
2 mm Hex key
3 mm Hex key
8 mm Hex key
2 mm Hex key
6 mm Hex key
Torque
40 ± 10 N•m [354 ± 88 lbf•in]
1 ± 0.1 N•m [8.9 ± 0.9 lbf•in]
3.5 ± 0.5 N•m [31 ± 4.4 lbf•in]
40 ± 10 N•m [354 ± 88 lbf•in]
1 ± 0.1 N•m [8.9 ± 0.9 lbf•in]
20 ± 5 N•m [177 ± 44 lbf•in]
AX319758618681en-000101