November 2022
Installation, Operation and Maintenance Manual
MAC050515 EN Rev. 0
25Bottom Mounted Stop Block
Section 11: Bottom Mounted Stop Block
Figure 11 NAMUR solenoid mounting details
Figure 12 Stop block travel adjustments
Travel Adjustment
Overtravel
Overtravel
Travel Adjustment
11.8 Adjustment of the Bottom Mounted Stop Block
Actuators are in the NORMAL or CLOSED position when the pistons are together.
This is under spring load on a Fail-Safe model or with air pressuring the port “4”
(refer to Figure 11) on the actuator body.
Table 9. Stop block travel adjustment settings
Actuator Type Close Bolt Open Bolt
Double-Acting B A
Fail-Safe Clockwise
Springs to Close
B A
Fail-Safe Clockwise
Springs to Open
A B
Fail-Safe Counterclockwise
Springs to Close
A B
Fail-Safe Counterclockwise
Springs to Open
B A
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