Danfoss Turbocor VTT Series, Service Manual

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M-SV-VT-001-EN Rev. A
Figure 167 - Rear Bearing
Sensor Feed Through
Notch
Compressor Components
Figure 168 - Rear Bearing
Power Feed Through
Notch
14. Carefully insert both feed throughs into the housing and reconnect the internal connectors.
15. Install the eight (8) M5x20 feed through screws and tighten in a crisscross pattern in two (2) stages.
• Stage 1: Tighten to 3 Nm (26 in.lb.)
• Stage 2: Tighten to a final torque of 6 Nm (53 in.lb.)
16. Reconnect the external bearing sensor and power cables to the feed throughs.
17. Verify all End Cap contact surfaces are clean and dry. If not, clean with a lint-free cloth.
18. Apply Super-O-Lube to the new O-ring and then fit it into the O-ring groove.
19. Insert two (2) Short Guide Pins into the 10 and 2 o’clock position.
20. Gently slide the End Cap into the Compressor housing.
21. Assemble all 12 of the M12x55 screws with the flat and lock washers.
22. Insert the screws in the available locations.
23. Remove the two (2) Short Guide Pins and insert the remaining screws.
24. Finger-tighten all 12 screws and ensure that the End Cap is seated evenly into the Compressor
housing.
25. Tighten the 12 M5 screws in a crisscross pattern in two (2) stages.
• Stage 1: Tighten to 35 Nm (25.8 ft.lb.)
• Stage 2: Tighten to a final torque of 70 Nm (52 ft.lb.)
26. Install the Service Side Cover.
27. Connect the motor power cables.
28. Install the three (3) M10 nuts and washers on the studs above the copper spacers and power
cables, then torque to specification.
29. Install the Motor Power Cover.
30. Leak test the Compressor to the appropriate pressure and industry standards.
31. Evacuate the Compressor to the appropriate pressure and industry accepted standards.
32. Charge the Compressor with refrigerant.
33. Restore power to the Compressor.