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Specifications subject to change without notice
Edition: August 2017
Maintenance EB 31a-01_EN
Fig. 15 - Detailed drawing of Series 31a Actuator, version manufactured from 2010
Item
Qty.
Description
Material
Item
Qty.
Description
Material
1
1
Cam (end position adjustment)
GS400-15
16
2
O-ring (piston)
NBR
2
2
Adjusting screw
A2-70
17
4 - 12
Spring cartridge
SiCr spring steel
3
2
Lock nut
A2-70
18
1
Spring clip
C 75
4
2
Washer
A2
19
1
Position indicator
PP + 30% GF
5
2
Bearing (piston back)
Nylon 46
20
1
Shaft seal (bottom)
NBR
6
1
Shaft bearing bushing (top)
PA 46
21
1
Shaft seal (top)
NBR
7
1
Shaft bearing bushing (bottom)
PA 46
22
1
Right end cap
GD-AlSi8.5Cu3.5Fe
8
2
Thrust bearing
Nylon 46
23
1
Left end cap
GD-AlSi8.5Cu3.5Fe
9
2
Plug (to seal air port)
NBR
24
1
Screw (position indicator)
A2-70
10
1
Thrust washer
1.4301
25
2
Piston
GD-AlSi8.5Cu3.5Fe
11
2
O-ring (adjusting screw)
NBR
26
1
Nameplate
Polyester aluminium
12
2
Piston guide
Nylon 66 + 30% GF
27
2
Nameplate (end cap)
Polyester aluminium
13
8/12/16
Screw (end cap)
A2-70
28
1
Spigot
EN AW 6063
14
2
Gasket (end cap)
NBR
29
1
Housing
EN AW 6063
15
2
Bearing (piston head)
POM
30
1
Shaft
C22
Table 4 - Parts list
