Masoneilan 496 Series Rotary Electric Switch Instructions Manual | 8© 2015 General Electric Company. All rights reserved.
Clevis Assembly
Model 88 Actuator
(Air-to-Open)
Model 87 Actuator
(Air-to-Close)
5. Attach clevis (6) to back lever (7) using clevis pin (9)
washer (10) and retaining clip (8).
6. Screw turnbuckle screw (1) onto clamp rod (2) until it lines
up with clevis (6).
7. Apply air pressure to the actuator until the actuator
stem has traveled exactly half the rated stroke.
8. Install and adjust the turnbuckle until the back lever is
horizontal. Tighten locknut.
9. Refer to adjustments (Page 2) to adjust the switches.
D. 87/88 Spring Diaphragm Actuators
Series 87/88 Actuators 496 Switch installation
1. Mount bracket (13) to yoke using cap screws (17) and lock
washers (18).
2. Attach the back lever (7) to the switch using cap screw
(11) and spring washer (12).
3. Mount switch on bracket (13) using cap screws (15) and
lock washers (16).
4. Screw locknut (3) onto clamp rod (2) install clamp rod into
split clamp and tighten locknut.
Figure 7
87/88 Spring Diaphragm Actuator
Ref.
No.
Description
Ref.
No.
Description
Ref.
No.
Description
1 Turnbuckle Screw 7 Back Lever 13 Mounting Bracket
2 Clamp Rod 8 Retaining Clip 14 496 Rotary Switch
3 Locknut 9 Clevis Pin 15 Cap Screw
4 Locknut 10 Washer 16 Lock Washer
5 Turnbuckle 11 Cap Screw 17 Cap Screw
6 Clevis 12 Spring Washer 18 Lock Washer
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