Models 370, 575 And 740 - Emerson Biffi Morin Series Installation, Operation And Maintenance Manual

Section 3: Jackscrew Override
May 2020
3.4

Models 370, 575 and 740

See Figure 4:
1.
2.
3.
4.
Figure 4
adjusting screw
4
Retract the jackscrew override completely by rotating clockwise.
Loosen the stroke adjusting screw and lock nut.
Using the handwheel, turn the jackscrew to adjust the actuator to the
desired position.
Screw the adjusting screw until it stops and tighten lock nut.
Jackscrew Override - Models 370, 575 and 740
Handwheel
Lock nut
Stroke
Sealed jackscrew
assembly
Installation, Operation and Maintenance Manual
SHUT
MAN-03-04-103-0738-EN Rev. 1
Lock nut
Stroke adjusting
screw
Jackscrew Override