Parts list (continued)
Part
Number per unit
Item
Tightening torque
Inner spool, amplifier
1
14
—
Compress spring
1
15
—
Shock valve
2
20
—
O-ring Ø24 x 2 mm
2
20.11
—
Valve seat
1
21
20 ± 3 N·m
Pilot cone
1
22
—
Spring
1
22.2
—
Adjusting screw
1
23
—
O-ring Ø9 x 2 mm
1
23.2
—
Plug
1
24
—
Directional spool
1
25
—
Orifice
2
26
5 ± 1 N·m
Spring stop
2
27
—
Compress spring
2
28
—
Compress spring
2
29
—
Spring stop
2
30
—
Orifice
1
36
5 ± 1 N·m
Check valve
1
37
20 ± 3 N·m
Screw
1
37.1
5 ± 1 N·m
Compress spring
1
37.2
—
O-ring Ø10.3 x 2.4 mm
1
37.3
—
Valve seat
1
37.4
—
Ball
1
37.5
—
Pin
2
38
—
Locking ring
2
39
—
Plug
1
40
—
Orifice
1
41
5 ± 1 N·m
Compress spring, OSQB only
1
45
—
Piston, OSQB only
1
46
—
Compress spring, OSQB only
1
47
—
Ball, OSQB only
1
48
—
Plug, OSQB only
1
49
25 ± 3 N·m
O-ring Ø23.3 x 2.4 mm, OSQB only
1
49.2
—
O-ring Ø35 x 2 mm
4
57
—
O-ring Ø40 x 2 mm
4
58
—
O-ring Ø10 x 2 mm
2
59
—
Cover
1
65
—
Cover
1
66
—
Model/code label
1
70
—
Spring washer
16
80
—
Screw
16
81
25 ± 5/-0 N·m
Spring washer
2
82
—
Screw
2
83
80 ± 10 N·m
Plug with O-ring
1
160
25 ± 5 N·m
Service Manual
OSQA/OSQB
Technical specifications
©
Danfoss | July 2016
HN25D293 | AX00000127en-US0101 | 7
