4700 Refrigerated Sampler Service Guide
Table of Contents
viii
2-6 Opening the pump housing cover and latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-7 Top cover bushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-8 Pump band removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-9 Pump band latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-10 Optical disk and sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-11 Old and new mounting plate (idler gear on opposite side) . . . . . . . . . . . . . . . . 2-10
2-12 Old and new idler gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-13 Removing pump motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2-14 Idler and drive gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2-15 Motor plate: mounting holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2-16 Pump motor wiring harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2-17 Pump rotor and hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2-18 Proper installation of the gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2-19 Improper installation of the gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2-20 Removing the detector protective barrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2-21 Aligning the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2-22 Positioning the cover base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2-23 Aligning the latch keeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2-24 Attaching the latch keeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2-25 Cut a notch in the top cover for the AC line cord . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2-26 Install heat shield inside cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2-27 Install heater under pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2-28 Install line cord clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2-29 Distributor arm (A) and discharge tube (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
2-30 Distributor module removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
2-31 Removal of stepper motor and optical sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2-32 Distributor assembly, exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2-33 Distributor gasket replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
2-34 Reassembling the distributor shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
2-35 Improperly positioned timing belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
2-36 Installing the cover plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
2-37 Timing belt alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
2-38 Installing the optical sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
3-1 Location of temperature sensors (reverse view of module) . . . . . . . . . . . . . . . . . . 3-3
3-2 Connector wiring of the temperature sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-3 Control panel module removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-4 Temperature sensor cable wiring connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-5 Temperature sensor wiring entry at rear of cabinet . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-6 Temperature sensor cable and bulkhead connector . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-7 Air temperature sensor mounting
(seen from rear with power supply removed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-8 Validating temperature sensor operation (view from front) . . . . . . . . . . . . . . . . . 3-7
3-9 Temperature verification with the 24-bottle rack . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-10 Temperature verification with the bottle locating base . . . . . . . . . . . . . . . . . . . . 3-8
3-11 Refrigeration service ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3-12 Piercing service port .312 O.D. tubing with a saddle tap tool . . . . . . . . . . . . . . 3-10
3-13 Protective coverings for suction line and service ports . . . . . . . . . . . . . . . . . . . 3-10
3-14 Refrigerant dryer, before installation and coating . . . . . . . . . . . . . . . . . . . . . . . 3-12
3-15 Refrigeration module components
(possible leak areas indicated by arrows) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3-16 Refrigeration charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
3-17 Terminal cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
3-18 Condenser fan connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3-19 Removal/replacement of condenser fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3-20 Removing 230V adaptor from AC power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3-21 Remove power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3-22 Electrical connections on 100V/120V compressors . . . . . . . . . . . . . . . . . . . . . . . 3-19
3-23 Electrical connections on 230V compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3-24 Removing evaporator temp sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Содержание 4700
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Страница 6: ...Isco 4700 Refrigerated Sampler Service Guide Safety iv ...
Страница 12: ...4700 Refrigerated Sampler Service Guide Table of Contents x ...
Страница 30: ...4700 Refrigerated Sampler Service Guide Section 1 Introduction and General Guidelines 1 18 ...
Страница 60: ...4700 Refrigerated Sampler Service Guide Section 2 Sample Delivery System 2 30 ...
Страница 108: ...4700 Refrigerated Sampler Service Guide Section 4 CPU and Power Supply 4 26 ...
Страница 122: ...4700 Refrigerated Sampler Service Guide Section 5 Electrical Troubleshooting and Diagnostics 5 14 ...
Страница 124: ...4700 Refrigerated Sampler Service Guide Appendix A Electrical Diagrams A 2 ...
Страница 126: ...4700 Refrigerated Sampler Electrical Wiring A 4 Figure A 3 4700 wiring diagram 230V ...
Страница 128: ...4700 Refrigerated Sampler Electrical Wiring A 6 Figure A 5 4700 CPU schematic diagram ...
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