8. Install the worm gear into the housing by “screwing” the worm gear along the IGV Throat Gear. Locate
the worm gear shaft into the bottom (small) bearing.
9. Place the threaded Locking Collar on the four (4) pins of the Collar tool and install into the housing.
NOTE
Ensure the flat side of the collar is against the tool.
10. Turn the Locking Collar counter clockwise and torque to 5 Nm (44 in.lb.). Refer to Figure 4-58 Locking
NOTE
Locking collar is a left-hand thread. Turn counter-clockwise when viewed from motor end to tighten (do not use threadlocker on collar).
11. Rotate the worm gear by hand until the set screw hole in the worm gear is visible through the access
hole in the casting. Verify that the worm gear turns freely. Do not install the set screw at this time.
Refer to Figure 4-64 IGV Worm Gear Alignment.
Figure 4-64 IGV Worm Gear Alignment
12. Insert the IGV Motor wires through the Feedthrough hole.
13. Check the position of the flat surface of the shaft relative to the locating pin. The flat surface should be
oriented facing up, ready to receive the set screw; adjust if necessary. Refer to Figure 4-65 Shaft
Position.
Figure 4-65 Shaft Position
14. Install the motor into the housing and align the motor shaft flat surface with worm gear shaft .
15. Ensure the motor locating pin is aligned with the notch in the housing flange. Refer to Figure 4-66 IGV
• • • CAUTION • • •
Check that wiring is clear of housing and edges of motor.
M-SV-001-EN Rev. H-1/23/2023 Page 91 of 294
Summary of Contents for Turbocor TT Series
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