Assembly Details For Shock And Relief Valves, And Dust Seal - Danfoss VSPP Service Manual

Service Manual
VSPP Steering unit
VSPP assembly
30 | © Danfoss | November 2019

Assembly details for shock and relief valves, and dust seal

VSPP shock and relief valve parts
Wrench size and torque
Item Description
64 Adjusting screw for shock valve
63 Valve seat for shock
99 Adjusting screw for pilot relief
valve
90 Valve seat for pilot relief
1. Screw in the valve seat (90) using a 6mm socket spanner.
Tightening torque: 20 ± 3 N•m [177 ± 27 lbf•in]
2. Insert the spring with cone (95).
3. Screw in the adjusting screw (99) using a 6mm Hex key.
Screw in until head of screw is 5-8mm below level of housing surface, measured on the "less deep
side" of the slanted bore.
Relief valve shall be adjusted in hydraulic test, see
4. Screw in the valve seat (63) using a 2.75mm Hex key.
O-rings (2x63.2) are fitted to the valve seats.
Tightening torque: 6 +0/-1 N•m [59 +0/- 8.9 lbf•in]
5. Insert the balls (2x61).
6. Insert the springs with thrust pad (2x62).
7. Screw in the adjusting screws (2x64) using a 5mm Hex key.
O-rings (64.2) are fitted to the adjusting screws.
Screw in until head of screws are just below level of housing surface.
Relief valve shall be adjusted in hydraulic test, see
8. Place the dust seal ring (9) in the housing.
Fit the dust seal ring using special tool dust seal assembly (see
hammer.
9. Make test and valve settings according to description in the following pages.
Wrench size
5 mm Hex key
2.75 mm Hex key
6 mm Hex key
6 mm Socket spanner
Testing of VSPP on page 32.
Testing of VSPP on page 32.
Required tools
Torque
-
6 +0/-1 N•m [59 +0/- 8.9 lbf•in]
-
20 ± 3 N•m [177 ± 27 lbf•in]
on page 7), and a plastic
AX319758618681en-000101