Azbil HLS Series User Manual

4-29
Disassembly of actuator
<Disassembly procedure>
Disassembly procedure of actuator is described herein. Refer to Figure 4-26 and Figure 4-27 or
Table 4-4 for the information.
1. Marking and protection
Step Procedure
1 Match the mark of the spring retainer No.10 at the top of actuator, lift stopper
No.13, cylinder No.14 and cylinder assembling yoke boss.
2 Wrap PVC tape around thread part of rod to protect sealing parts, and the guide
bushing.
2. Removing slide screw rotation stopper (In case of with handwheel)
Step Procedure
1 Loosen hex head bolt No.37 and hex nuts Mo.38 which fasten the slide screw
rotation stopper No.36.
2 Remove slide screw rotation stopper No.36.
3. Removing spring retainer
Step Procedure
1 Loosen hex nuts No.2 and eye nut No.1 at the top of actuator and remove.
2 Lift spring retainer No.10 straight up and remove.
4. Removing lift stopper and spring unit
Step Procedure
1 Loosen hex stays No.4 (four syays) which fasten lift stopper No.13 and cylinder
No.14 and remove.
2 Raise lift stopper 13 straight up and remove.
3 Install eyebolts in the threaded holes on the spring receiver No.9 which is located
on the top of spring unit (M12*2) and lift spring unit (approximately 120 kg) up
with a crane.
4 While suspended by crane, remove the piston’s No.3 sealing parts (tape liner
No.14, O-ring No.15)

Azbil HLS Series Specifications

General

Brand	Azbil
Model	HLS Series
Category	Control Unit
Language	English