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13-25-608 Page 67
8. Re-assembly the compressor and associated components in reverse order. Remember to set the
proper spacing between the coupling jaws (24/25.8mm) and tighten the M8 set screws to the
proper torque (10 N-m).
FIGURE 8- 3- COMPRESSOR-MOTOR ASSEMBLY DETAILS
Installation and Removal of Interference Fitted Coupling Hubs.
The coupling hubs are designed to mount on the compressor and motor shafts with a transitional
interference fit [H7 (bore) / k6 (shaft)] that results in a light interference 50% of the time. If such condition
is present for either of the two (2) hubs/shaft combinations, proceed as follows:
Removal:-
1. Use 3-jaws tool 90500151 to remove coupling hub from shaft. A torque not exceeding 130 lb-ft
(176 N-m) should be sufficient to pull hub from shaft. See Figure 8-4 for details.
2. Prior to hub removal, note and record position of shaft end with respect to coupling hub inner
surface. Same offset shall be provide when re-installing the hub.
Installation:
1. Make sure that shaft and hub bore surfaces and keyways are cleansed and de-burred. Also
make sure that keys fit in their matching keyways easily and are in place prior to installing the
coupling hub.
2. Provide a temporary stop on the shaft to insert the coupling hub to the correct offset identified
during the removal process above. Lockjaw self-adjusting pliers provide may be used as stop.
3. Heat evenly the coupling hub until it reaches 250°F (120°C)
– an oven is preferred method.
Using insulating gloves, install the hot hub unto shaft until it hits the stop.
4. After coupling hubs cools down, install the M8 set screw with 10 N-m torque.
FIGURE 8- 4 - Coupling hub removal tool in place
Summary of Contents for APEX25-30B
Page 11: ...13 25 608 Page 10 Figure 1 2 COMPRESSOR ILLUSTRATION VARIABLE SPEED 304USC797 01 Ref Drawing...
Page 12: ...13 25 608 Page 11 Figure 1 3 COMPRESSOR ILLUSTRATION FIXED SPEED 305USC797 01 Ref Drawing...
Page 27: ...13 25 608 Page 26 Figure 4 2 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 1 of 4...
Page 28: ...13 25 608 Page 27 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 2 of 4...
Page 29: ...13 25 608 Page 28 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 3 of 4...
Page 30: ...13 25 608 Page 29 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 4 of 4...
Page 31: ...13 25 608 Page 30 Figure 4 3 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 1 of 4...
Page 32: ...13 25 608 Page 31 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 2 of 4...
Page 33: ...13 25 608 Page 32 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 3 of 4...
Page 34: ...13 25 608 Page 33 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 4 of 4...
Page 45: ...13 25 608 Page 44 Figure 4 7 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 1 of 3...
Page 46: ...13 25 608 Page 45 Figure 4 8 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 2 of 3...
Page 47: ...13 25 608 Page 46 Figure 4 8 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 3 of 3...
Page 51: ...13 25 608 Page 50 Figure 4 8 PIPING AND INSTRUMENTATION ILLUSTRATIONJ 301USC797 C Ref Drawing...
Page 86: ...NOTES...
Page 87: ...NOTES...