Skytron ELITE 6002, Maintenance Manual

Page 1: ...Page 59 ELITE SERIES SURGICAL TABLES MODEL ELITE 6002 MAINTENANCE MANUAL INCLUDING BATTERY MODELS REV 8 05...

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Page 3: ...lve 9 d Speed Controls 9 SECTION II MECHANICAL TABLE ADJUSTMENTS 11 2 1 Back Section Gear Mesh Adjustment 11 2 2 Hydraulic Cylinder Adjustment 11 a Back Section 11 b Leg Section 11 SECTION III HYDRAUL...

Page 4: ...TERY MODEL ELECTRICAL TROUBLESHOOTING 36 6 1 General 36 6 2 Troubleshooting Notes 36 6 3 Main Switch 37 6 4 Batteries 37 6 5 Battery Charging Box AC120V Transformer 38 6 6 Switch Over Relay 39 6 7 Pen...

Page 5: ...if applicable Inspect Table Tops Check Oil Level in Reservoir Check Operational Times and Pressure Values Check For Hydraulic Leaks Check Pressure Relief Valve Setting Check All Table Functions Check...

Page 6: ...S TABLE MUST BE CONNECTED TO A PROPERLY GROUNDED HOSPITAL GRADE OUTLET CONNECTION FOR NEUTRAL CONDUCTOR SUPPLIED N UNIT TO BE USED ONLY IN SPECIFIED ENVIRONMENTAL CONDITIONS TEMPERATURE 15 30 C 60 85...

Page 7: ...SIDE VIEW 22 19 43 MAX 28 MIN END VIEW Electrical Specifications Power requirements Current Leakage Power Cord 120 VAC 60Hz 300 Watts Less than 100 micro amps 15 feet w hospital grade connector remov...

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Page 9: ...ylinders They convert the hydraulic fluid pressure and volume into mechanical motion Figure 1 1 Hydraulic Block Diagram Model 6002 1 1 General Electro Hydraulic System The hydraulic system with the ex...

Page 10: ...1 3 Pressure Relief Valve Not Functioning This device provides an alternate oil path when the hydraulic cylinders reach the end of their stroke and the pump continues to run If this path were not pro...

Page 11: ...oil in the cylinders and oil lines and prevent any movement of the table One check valve is provided in a 3 way mini valve 4 Speed Adjustments There are two speed adjustments in each mini valve They...

Page 12: ...n mode because the oil is routed around thespeedadjustment throughaby passvalve and then to the output port The left speed adjustment controls the speed of the table function by restrict ing the amoun...

Page 13: ...ers Slave Cylinders There are several different types of hydraulic cylin ders used in the table that activate the control functions With the exception of the elevation and brake cylinders all operate...

Page 14: ...t in the center of the elevation maincolumn Thecylinderiselevatedbythedriven forceoftheoilpressure Whenlowering theoilthat is accumulated in the cylinder is returned to the oil reservoirthroughthemini...

Page 15: ...electronic timer runs for approx 8 10 seconds The brakes are released by pushing the BRAKE UNLOCK button momentarily An electronic timer in the relay box activates the brake function hy draulic mini...

Page 16: ...endelenburg and back section hy draulic systems in a series When FLEX is acti vated by the pendant control the Flex Reflex mini valve opens the oil pressure path to the Reverse Trendelenburg piston Th...

Page 17: ...checking oil level Figure 1 19 ThetypeofoilthatshouldbeusedisMobilDTE 25 or equivalent This is a very high quality hydraulic oil The table requires approximately two quarts of oil to operate properly...

Page 18: ...volume of oil return ing back to the reservoir thereby controlling the speed of each control function All four way mini valves have two speed controls located in the ends of each valve body All three...

Page 19: ...reaching its fully extended position at the same time as the other This condition would require an adjustment Figure 2 2 Back Section Adjustment b Leg Section Position the leg section all the way up...

Page 20: ...the problem intermittent 5 Is the problem no movement of a table surface or does the table surface lose position Oncethe problem has been determined concen trate on that particular hydraulic circuit o...

Page 21: ...tive Relay Box or Pendant Control Incorrect Speed Adjustment Bad Check Valve Spool Valve Not Centered Galled Slider Assembly Defective Solenoid or Wiring Defective Relay Box or Pendant Control Table w...

Page 22: ...I VALVE Figure 3 2 Trendelenburg Circuit Reason Incorrect Speed Adjustment Spool Valve Not Centered Bad Check Valves Low on Oil Pinched Hose Defective Mini Valve Pressure Relief Valve Not Set Properly...

Page 23: ...tered Bad Check Valves Low on Oil Pinched Hose Defective Mini Valve Pressure Relief Valve Not Set Properly Bad Solenoid Defective Relay Box or Pendant Control Lateral tilt function chatters or loses p...

Page 24: ...ly Bad Solenoid Defective Relay Box or Pendant Control Problem Back Section or Trendelenburg function moves improperly NOTE If Flex System does not function prop erly check the back section and tren d...

Page 25: ...k Valves Low on Oil Pinched Hose Defective Mini Valve Pressure Relief Valve Not Set Properly Bad Solenoid Defective Relay Box or Pendant Control Problem Back Section function moves improperly Defectiv...

Page 26: ...ched Hose Defective Mini Valve Pressure Relief Valve Not Set Properly Bad Solenoid Defective Relay Box or Pendant Control Problem Leg function moves improperly Defective or Dirty Check Valves Oil Leak...

Page 27: ...brakes will not reset until BRAKE UN LOCK Circuit has been activated Brakes Will Not Stay Locked Brakes will not retract properly Reason Emergency Brake Release Valve Open or Defec tive Spool Valve No...

Page 28: ...r the long flexible hoses which connect from the plumbing terminal to the front and rear pivot blocks NOTE The number codes will be stamped into the elevation clamp ring and the plumb ing terminal Fig...

Page 29: ...Page 21 Figure 4 1 6002 Electrical Circuit Block Diagram...

Page 30: ...nents Refer to figure 4 1 for the relationship of the elec trical components a Wires Connectors Switches Fuse These provide the path for the various electrical circuits b Relay Box Contains the step d...

Page 31: ...ective components could cause the entire table to stop functioning or only one control function to stop It would depend on what part of the componentfailed Otherdefectivecomponentswould only cause one...

Page 32: ...o operate the mini valve and the pump motor The Pendant Control has only 5 6 volts applied to it a Pendant Control Test The following test will determine if the micro switches inside the Pendant Contr...

Page 33: ...Table Base Connector Figure 5 5 Base Connector Continuity Test 5 4 Relay Box The 120 volt power supply is directly connected to the relay contacts When these contacts are closed 120 volts is supplied...

Page 34: ...ol buttons 1 The power cord should be plugged into the wall receptacle and main switch turned ON 2 Disconnect Pendant Control connector All other connectors should be connected 3 Using a DC voltmeter...

Page 35: ...sconnected Polarity of meter leads is not important 2 The meter should read approximately 80 90 ohms at room temperature f Test Results Ifyoudonotreceivethecorrectmeterreadings the relay box or wiring...

Page 36: ...LCK DN UP REFX RT HD DN UP DN HD UP LT FLEX DN UP SET TABLE TREND LAT TILT FLEX BACK SECT LEG SECT BRAKE WHITE BLUE WHITE BLUE WHITE BLUE WHITE BLUE WHITE BLUE WHITE BLUE WHITE BLUE Figure 5 8 Solenoi...

Page 37: ...apacitor start type with a rating of 120 VAC 200 watts The field windings are protected with a thermal protector that will open the winding circuit if the motor is run continuously for approximately 1...

Page 38: ...pins 2 and 3 together before you will be able to see theohmmeterneedleswingupthescale f Step 3 The motor windings can be statically checked for resistance using an ohmmeter 1 Turn main power switch O...

Page 39: ...unting brack ets See figure 5 12 The micro switches operate on low voltage and control the function circuits pump motor and ap propriate solenoid valves when activated by the pendant control RETURN bu...

Page 40: ...Connector CN2 plugs into the relay box and is the most convenient location to make circuit continuity checks See figure 5 13 for connector pin locations a Switch Test Turn Main Power ON lock the table...

Page 41: ...Page 33 Figure 5 14 Trendelenburg Return Switches Figure 5 15 Lateral Tilt Return Switches CN10 CN2 10 9 Test at pins 3 9 Test at pins 4 9...

Page 42: ...s and using a level level the table top using the TRENDELENBURG and LATERAL TILT function buttons on the pendant control Figure 5 17 Micro Switch Adjustment 2 For all switches except the Leg Section s...

Page 43: ...SOLENOID COIL 24VDC CN1 CN9 CN2 CN10 TO RETURN CIRCUIT CN14 CN13 AUXILIARY CONNECTOR CN18 CN15 120 VAC TO TRANSFORMER 22 VAC FROM TRANSFORMER CN6 CN7 CN8 RELAY BOX POWER CORD MINI VALVES AUXILIARY SW...

Page 44: ...anation on how to check it out Certain defective components could cause the entire table to stop functioning or only one control function to stop It would depend on what part of the component failed O...

Page 45: ...Meter should read 12VDC 1V 2 To accurately test the batteries they must be tested under a full load Disconnect the main power cord and make sure all other connectors are connected 3 Turn BATTERY power...

Page 46: ...r should read 22VAC b Test Results If the correct voltage is obtained everything is good up to this point and the problem would have to be in another area If you do not receive the correct measurement...

Page 47: ...ng mode output power to the relay box and also activates the battery charging circuit See figure 6 10 NOTE The battery charging circuit is only op erational when the table is in the AC120V operating m...

Page 48: ...eter there is nothing wrong with the Pendant Control 6 7 Pendant Control ThePendantControlconsistsof15micro switches buttons When any of the circuits are completed by depressing a function button the...

Page 49: ...he connector The connec tor is low voltage and there is no danger of electrical shock Pin 19 will have no voltage potential unless one of the return to level micro switches are activated 6002B c LED T...

Page 50: ...ld read 0 ohms b Test Results If proper meter readings are not received test the individual switches as necessary Using an ohm meter test the operation of an individual switch with the test lead at th...

Page 51: ...lug the power cord into the 120VAC supply wall receptacle Disconnect connector CN4 leave all other connectors connected 2 Using a DC voltmeter test input power for both the BATTERY and AC120V operatin...

Page 52: ...The connec tor is low voltage and there is no danger of electrical shock To make sure all operating modes are OFF connect the pendant control turn AC120VpowerOFFatthemainswitch wait approximately 5 s...

Page 53: ...d using the BRAKE UNLOCK button no output is provided 2 Test connectors CN6 and CN7 from the back while attached to the relay box All connectors should be connected 3 Activateeachofthe pendantcontrolb...

Page 54: ...wires are making a good connec tion a CN4 to Batteries Test 1 Disconnect connectors CN4 and the and connectors from the batteries Leave all other connectors connected 2 Using an ohmmeter test for con...

Page 55: ...y the relay box The solenoid windings are protected from exces sive heat by an internal thermal fuse that will open after approx 7 minutes of continuous operation The solenoid must be replaced if the...

Page 56: ...oltage is obtained everything is good up to that point and the problem is more than likely the solenoid d Test 2 The solenoid can be checked out using an ohm meter R x 1 scale 1 Measure the resistance...

Page 57: ...See figure 6 25 Meter should read 24 28 volts Figure 6 25 Motor Input Voltage NOTE If the pump has been activated continu ously for 1 1 2 to 2 minutes the thermal relaywillinterruptthepowertothepump b...

Page 58: ...relay box circuit board Turn the adjuster clockwise to increase the operating time Counter clockwise to decrease the operating time SECTION VII ELECTRICAL SYSTEM ADJUSTMENTS b Brake Set Timer The Brak...

Page 59: ...Page 51 VR2 VR3 VR1 Figure 7 2 Relay Box Adjustments Model 6002B...

Page 60: ...Original printing 5 03 Revised 8 05...

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Page 62: ...Page 58 500036thStreetS E GrandRapids MI 49512 1 800 SKYTRONor1 616 957 0500 FAX1 616 957 5053...