DENTSPLY ProMix 400 Repair Manual Download Page 24

Page: 24 / 24

n the USA

In Europe

Dentsply Caulk

Dentsply DeTrey-DeDent

Dentsply International Inc.

D-7750 Konstanz

Milford, De 19963-0359

Germany 78404

Printed in Canada
(2/95)

Summary of Contents for ProMix 400

Page 1: ...REPAIR GUIDE MODEL 400 MODEL 401 MODEL 402 the ProMix AMALGAMATION UNIT...

Page 2: ......

Page 3: ...Y PRECAUTIONS 3 SECTION IV GENERAL DESCRIPTION 4 0 INTRODUCTION 4 SECTION V INSPECTION INSTALLATION OPERATION 5 0 INSTALLATION 5 5 1 OPERATION 6 SECTION VI SERVICE AND MAINTENANCE 6 1 SERVICE 7 6 2 CL...

Page 4: ...ION DEGREE 2 OPERATION MODE Continuous Under normal usage conditions 1 2 Operating Environment NOTE Equipment not suitable for use in the presence of the flamable anaesthetic mixture with air or with...

Page 5: ...I GLOSSARY OF SYMBOLS ______ Attention Consult Accompanying Documents ______ Alternating Current ______ Protective Earth ______ OFF Power Disconnection from the Mains ______ ON Power Connection to the...

Page 6: ...roMix get damaged in any way do not attempt to operate the unit unless thoroughly inspected and serviced by qualified Dentsply Dealer Service personnel 4 In cases where a patient or user of the ProMix...

Page 7: ...aterials to the manufacturers specifications c A Timer to set the run cycle to a maximum of 30 seconds in 1 second increments for both speeds d A Digital Display for convenient viewing of timing funct...

Page 8: ...shall always be initialized as follows the Display Board shall read 00 the motor shall be OFF the LOW motor speed shall be selected and the LOW LED indicator shall be ON NOTE AC power interrupts and d...

Page 9: ...associated LED indicator Low turtle Selects the low amalgamation speed 3700 rpm and the associated LED indicator Start Stop I O Initiates and deactivates the amalgamation cycle NOTE The two 2 memory...

Page 10: ...7 1 TROUBLE SHOOTING QUICK CHECK NOTE THIS UNIT HAS CMOS COMPONENTS WHICH MAY BE SUBJECT TO ELECTROSTATIC DAMAGE ESD WORKSTATION MUST BE PROPERLY GROUNDED AND THE REPAIR PERSON SHOULD GROUND THEMSELVE...

Page 11: ...on A Loose Lead Wires Open unit and check for loose lead wire connections between the A C receptacle main power switch Fig 1a and the power supply See Fig 1b B Blown Fuse Check fuses See Fig 1b If ope...

Page 12: ...d gnd If either is zero or less than 7V a c replace the power supply D C P U Board Identify C P U board as shown in Fig 1d Locate voltage regulator VR1 see Fig 1e Measure voltage between pin 2 gnd and...

Page 13: ...Down keys operate properly but on off key activation does not start the unit Possible Causes Solution A Door switch cable connections Locate power supply Fig 1c Check for Model 400 120v loose or open...

Page 14: ...is opened and closed If the problem persists change the switch D Motor Connections Locate motor wire terminal block Fig 3a Check that connections are secure and that the screws are tight If they are s...

Page 15: ...broken or intermittent replace optical detector board assembly B Optical detector If problem still exists clean the inside slot of the optical detector board assembly C Power supply See para 7 2 1 C D...

Page 16: ...Locate timing wheel Fig 4a Make sure the timing wheel has not changed location This would cause the wheel to cut the optical board 4a If this has happened change the optical board and realign the tim...

Page 17: ...tion Possible Problem Solution A Broken or loose conical springs Open the unit and check the conical springs located in Fig 6a If a spring is broken or loose replace motor assembly see assembly disass...

Page 18: ...Glue bond is broken Glue the boot back to plastic using Loctite Super bonder 498 Fig 8 2 7 3 6 Window makes noise during operation Possible Cause Solution A Tension of the window has decreased Locate...

Page 19: ...of the unit to release the top cover Fig 8 1 c Turn the unit right side up while holding the upper and lower halves of the enclosure Carefully pull the top cover ahead in a sideward motion while pushi...

Page 20: ...four screws holding the power supply to the metal base e Lift the transformer board up and out 8 1 3 CPU Board Removal Model 400 a Locate J1 and J2 connectors on the CPU board and disconnect 120 Volt...

Page 21: ...rew on the motor assembly e Loosen the 2 allen screws on the cam assembly and pull the cam from the motor shaft f Turn the unit upside down and completely loosen the 4 screws holding the rubber feet i...

Page 22: ...PM401004 PM401004 Motor Base Assembly PM400005 PM401005 PM401005 Plastic Door PM400006 PM401006 PM401006 Detachable Power Cord M100024 M102024 M102024E M102024UK Fuse 2 PM400007 PM401007 PM401007 Pla...

Page 23: ...NOTES...

Page 24: ...In the USA In Europe Dentsply Caulk Dentsply DeTrey DeDent Dentsply International Inc D 7750 Konstanz Milford De 19963 0359 Germany 78404 Printed in Canada 2 95...