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Specifications subject to change without notice
Edition: August 2017
Maintenance EB 31a-01_EN
Fig. 39 - Detailed drawing of BR 31a Actuator, third generation
Item
Qty.
Description
Material
Item
Qty.
Description
Material
1
1
Housing
AlMgSi0,5 F25
12
4
Lock nut
X5 CrNi 18 10
2
2
Piston
GD-AlSi8 Cu3
13
8
Screw (end cap)
X5 CrNi 18 10
3
2
End cap
GD-AlSi8 Cu3
13a
8
Washer
X5 CrNi 18 10
4
1
Shaft
C22
14
2
Gasket (end cap)
Buna N
5
2
Bearing (piston back)
PA 4.6
15
2
Bearing (piston head)
PA 4.6
6
1
Shaft bearing bushing (top)
PA 4.6
16
2
O-ring (piston)
Buna N
7
1
Shaft bearing bushing (bottom)
PA 4.6
17
12
Spring cartridge
54 Si Cr6
8
1
Thrust washer
PA 4.6
18
1
Spring clip (pinion)
C75
8a
1
Support screw
X5 CrNi 18 10
19
1
Position indicator
PA
9
2
Air port screw
Buna N
20
1
Screw/washer
X5 CrNi 18 10
10
2
Adjusting screw (OPEN)
X5 CrNi 18 10
21
1
O-ring (pinion top)
Buna N
10a
2
Adjusting screw (CLOSED)
X5 CrNi 18 10
22
1
O-ring (pinion bottom)
Buna N
11
4
O-ring (adjusting screw)
Buna N
24
2
Guide piston
PPA
11a
4
Washer
X5 CrNi 18 10
25
1
Centering ring
PA
Table 5 - List of parts
