4700 Refrigerated Sampler Service Guide
Section 2 Sample Delivery System
2-24
Figure 2-30 Distributor module removal
6. Clean the distributor module’s mounting surface inside the
refrigerated compartment. This will help ensure that the
gasket on the new module will seal to the enclosure.
7. Feed the wires from the replacement distributor through
the hole to the control panel compartment.
8. Align the distributor module over the mounting holes and
secure it with the mounting screws. Torque screws 16 to 18
in/lbs.
9. Connect the connectors P1 and P4 to the control panel.
10. Align the control panel module over the mounting holes
and secure it with the mounting screws. Torque screws 16
to 18 in/lbs.
11. Align the key in the distributor arm with the notch in the
distributor shaft. The arm should seat fully onto the shaft
as shown in Figure 2-29, using only slight pressure.
Reinstall the knurled nut and hand-tighten. Do not
over-tighten.
12. Install the discharge tube into the arm, and connect the
end to the bulkhead fitting.
13. Perform a distributor diagnostic test (Section 5.1.6).
2.8 Disassembling the
Distributor
Begin disassembly by removing the distributor module according
to steps 1 through 5 in Section 2.7.
1. Remove the nut and washer holding the ferrite bead in
place (Figure 2-31).
2. Remove the two screws and washers from the stepper
motor mounting plate.
Summary of Contents for 4700
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Page 6: ...Isco 4700 Refrigerated Sampler Service Guide Safety iv ...
Page 12: ...4700 Refrigerated Sampler Service Guide Table of Contents x ...
Page 30: ...4700 Refrigerated Sampler Service Guide Section 1 Introduction and General Guidelines 1 18 ...
Page 60: ...4700 Refrigerated Sampler Service Guide Section 2 Sample Delivery System 2 30 ...
Page 108: ...4700 Refrigerated Sampler Service Guide Section 4 CPU and Power Supply 4 26 ...
Page 124: ...4700 Refrigerated Sampler Service Guide Appendix A Electrical Diagrams A 2 ...
Page 126: ...4700 Refrigerated Sampler Electrical Wiring A 4 Figure A 3 4700 wiring diagram 230V ...
Page 128: ...4700 Refrigerated Sampler Electrical Wiring A 6 Figure A 5 4700 CPU schematic diagram ...
Page 131: ...4700 Refrigerated Sampler Appendix B Replacement Parts List B 3 ...
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