9.5 Reassembly of the end caps
9.5.1 Double-Acting actuators
1. Grease the O-ring seals (11) and B port seals (2) according to step 9.1.
2. Ensure that O-ring seals (11) and B port seals (2) are kept in place during assembly.
3. Install the end caps (6) and tighten the end cap screws (8).
Refer to Table 15 for the correct torque.
Figure 31 Double-acting end cap assembly
2
6
8
6
11
6
5
10
8
10
11
2
Double acting end caps (6) are fitted with a white warning sticker. Spring return end
caps (5) are fitted with a black warning sticker.
The above end caps (5) are for actuator sizes 25, 40, 65 and 100.
End caps (6) for double acting actuator sizes 150 and larger will have flat end caps.
Table 15. End cap Screw Torque
Actuator
size
Thread Tool Size
Torque (Nm) Torque (lbf.ft)
Target Min. Max. Target Min. Max.
12 M4
Allen key
SW 3 1.1 0.8 1.3 0.8 0.6 1.0
25 M5 SW 4 2.0 1.6 3.0 1.5 1.2 2.2
40 M5 SW 4 2.0 1.6 3.0 1.5 1.2 2.2
65 M5 SW 4 2.0 1.6 3.0 1.5 1.2 2.2
100 M5 SW 4 2.0 1.6 3.0 1.5 1.2 2.2
150 M6 SW 5 3.3 2.6 5.1 2.4 1.9 3.8
200 M6 SW 5 3.3 2.6 5.1 2.4 1.9 3.8
350 M8 SW 6 8.4 6.7 12.2 6.2 4.9 9.0
600 M10 SW 8 15.3 12.2 24.8 11.3 9.0 18.3
950 M12 SW10 24.3 19.4 41.6 17.9 14.3 30.7
1600 M12 SW10 24.3 19.4 41.6 17.9 14.3 30.7
2500 M12 SW10 24.3 19.4 41.6 17.9 14.3 30.7
4000 M14 SW12 43.5 34.8 66.4 32.1 25.7 49.0
40
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