© 2015 General Electric Company. All rights reserved.
26 | =GE Oil & Gas
87U/88U Actuator
Mounting 4700P/4800P and 4700E/4800E on Series 87U/88U
Actuators
1. Mount lever (1U) between two jam nuts (11U) on valve stem (Figure 7).
2. Attach turnbuckle screw (101) to lever (1U).
3. Assemble jam nut (107) to clevis (102). Assemble clevis to turnbuckle screw (101).
4. Install input shaft (42) in post hub with a washer (40) on each side of hub and
retaining ring (37) on cam end.
5. Attach back lever (103) to shaft with hex head screw (38) and lockwasher (39).
6. Attach bracket (5U) to positioner with screws (29) and lockwashers (30).
7. Mount positioner and bracket assembly to actuator yoke using cap screws (12U)
and lockwashers (30).
8. Attach clevis (102) to back lever (103) using clevis pin (104), retaining clip (105), and
washer (122).
9. Mount cam (26) on input shaft with desired lobe against cam follower using screw
(28) and washer (27).
Table 2: Mounting Parts Reference 87U/88U
Ref.
No.
Description Ref.
No.
Description
1U Lever 39 Lockwasher
5U Bracket 40 Washer,.531 ID
11U Nut 42 Input Shaft
12U Cap Screw 101 Turnbuckle Screw
26 Cam 102 Clevis
27 Washer 103 Back Lever
28 Pan Head Screw 104 Clevis Pin
29 Screw 105 Retaining Clip
30 Lockwasher 107 Locknut
To Next Page
Loading...