16 M Motor Actuators
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Y20EBD Valve Linkage for M100 Motor Actuators
2. Determine the required position of the gear housing on the load end of
the actuator so that the opening for the rack assembly is located as
follows:
• stem up position, drive down operation--rack to the right
• stem down position, drive up operation--rack to the left
Y20A1-13
Housing
Locking Screw
Rack
Subassembly
Figure 15: Inserting Rack Subassembly
3. Insert the rack subassembly into the gear housing by sliding it from
the bottom through the hole in the gear housing as shown in Figure
15.
Note: If the rack subassembly has difficulty being inserted, check the
locking screw to make sure that it is not interfering with movement
of the rack. If it is, back it out until there is no interference.
4. When the rack subassembly is completely in the housing, tighten the
locking screw to secure the rack subassembly in position.
Jam Nut
Screws
Washers
Rack Subassembly
Spring Housing
Y20D1-15
Figure 16: Mounting Gear Housing
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