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Installation, Operation and Maintenance Manual
DOC.IOM.BRX.EN Rev. 2
Section 4: Disassembly Procedure
This Section explains:
•
4.1
Double-Acting Actuators
WARNING
!
Remove air pressure and observe normal safety precautions, including the use of
eye protection.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Disassembly Procedure
How to disassemble an actuator safely.
Remove the indicator assembly (25) from the top of the actuator.
Remove both travel stop bolts (21), after slackening the lock nuts (23).
Verify that the end caps are for Double-Acting actuator (flat), and loosen end
cap fixing screws evenly (22).
Remove the end caps (4).
Using a suitable wrench in the top of the pinion shaft (2), turn the shaft counter
clockwise to drive the pistons apart. Remove the pistons (3) complete with back-
ing pads/O-rings, etc.
Remove circlip (24) from the bottom bore of the actuator including thrust
washer (13).
Protect the actuator bore during pinion disassembly, and tap pinion shaft
downward. The travel stop cam (5) is firmly attached to the pinion and needs
to be released before removing the pinion from the actuator body (1).
Remove the pinion, but take care to protect the actuator bore.
Remove top and bottom O-rings (16 and 17) from the pinion shaft.
Remove top and bottom bearings (10 and 11) from the pinion shaft.
Section 4: Disassembly Procedure
May 2021
7
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