Tuttnauer 2540 EHS Technician Manual Download Page 69

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9.17

Draining the Jacket

Caution

Before starting, ensure that the electric cord is disconnected and

there is no pressure in the chamber or jacket.

1.  Turn off the main switch.
2.  Remove the rear cover.
3.  Turn the valve handle (1) 1/4 turn and the jacket will begin to

drain.

4. Close the valve, and re-assemble the rear cover

Summary of Contents for 2540 EHS

Page 1: ...TECHNICIAN MANUAL Electronic Table top Pre and Post Vacuum Autoclaves models 2540 3870 EHS Cat No MAN205 0063 005E Rev D...

Page 2: ...ard 13 4 3 Digital Board DIG T2 13 4 4 Analog Board ANL T2 15 4 5 AC Board AC T1 17 5 CALIBRATION OF PRESSURE AND TEMPERATURE 19 5 1 Calibration Overview 19 5 2 Calibration Theory Error Compensation 2...

Page 3: ...e Switch 60 9 13 The Heaters 61 9 14 The Dual Compartment Water Reservoir 62 9 15 The Water Sensing Electrodes 64 9 16 The Vacuum Pump 66 9 17 Draining the Jacket 68 9 18 Replacement of the Door Cover...

Page 4: ...CTION OF THE 3870EHS AUTOCLAVES ELECTRONICS BOX 118 VESSEL ASSEMBLY 118 VESSEL ASSEMBLY 119 OUTER CABINET ASSEMBLY 120 TRAY HOLDER 121 TRAY 122 TRAY HANDLE CMT240 0001 122 DOOR TIGHTENING BOLT ASSEMBL...

Page 5: ...he use of the technician It is strongly recommended that only qualified and Tuttnauer factory trained personnel service this autoclave and do so in accordance with the instructions in this manual Any...

Page 6: ...with shut off valve and NPT male end Higher rates of pressure will require the installation of a pressure reducer A regulator and pressure gauge are supplied with the unit The minimum rate of flow is...

Page 7: ...reducer A regulator and pressure gauge are supplied with the unit The minimum rate of flow is 0 26 gal min 1 lit min Installation of the valve should be 2 above counter height at the rear of the unit...

Page 8: ...or requirement i e only non hazardous liquids shall be disposed of in public sewage Network and connection should comply with the devices consumption local installation and safety rules and regulation...

Page 9: ...the wall to allow ventilation It is recommended that enough space be left around the autoclave to give a technician access for servicing the machine 3 6 Connections to Utility Supplies Using the hose...

Page 10: ...9 REAR VIEW...

Page 11: ...y water pressure into the unit is between 15 58 psi Verify that the mineral free water pressure into the unit is between 7 30 psi Door check ensure that the door locking mechanism is functioning prope...

Page 12: ...without sediment Hardness 0 1 mmol l Attention The use of water in the autoclave that does not comply with the table above may have severe impact on the working life of the sterilizer and can invalida...

Page 13: ...ower supply In addition the system is capable of direct communication with a printer over a parallel interface and or a PC via an RS 232 port for more detail see individual descriptions below CONTROL...

Page 14: ...e ANL T2 analog board via ribbon cables The DIG T2 board receives human commands through the Keypad and transmits visual information back through the Keypad display The DIG T2 board receives sensory i...

Page 15: ...e is running It forces the micro controller to recheck system inputs every 1 5 seconds this prevents the software from becoming stuck in a program loop that would lead to the software crashing and a l...

Page 16: ...8 is connected to the Power Supply and receives the 12VDC and the 5VDC JP6 provides a connection to the DIG T2 board JP7 provides a connection for the Test Point board needed in troubleshooting JP9 pr...

Page 17: ...16 Layout diagram of the ANL T2 is provided below ANL T2 BOARD Top View Bottom View...

Page 18: ...pply Three 230 115 VAC triac control circuits These are the AC drivers used in controlling the water and vacuum pumps and the steam valve The maximum amperage this board is capable of controlling is 6...

Page 19: ...18 AC T1 BOARD Top View Bottom View...

Page 20: ...ar output and has an electrical output range of 100mv 2400mv which corresponds to a temperature range of 68 F 20 C 302 F 150 C The temperature and pressure circuits provide analog input voltages that...

Page 21: ...either F or C depending on what units the machine is set to display Note The pressure calculations are always done in Absolute pressure Absolute pressure atmospheric pressure 14 5 The calibration step...

Page 22: ...slight delay in updating the screen when changing values on the PT100 simulator This will be the R value for the upper row Repeat this procedure for the high setting using the PT100 simulator it is s...

Page 23: ...at the high end of the pressure range Once in the calibration mode the calibration screen will look similar to this Upper Row A 15 R 15 atmospheric pressure reading Lower Row A 45 R 45 high pressure...

Page 24: ...ered the sterilization mode Record the temperature and pressure from the digital display Abort the cycle by pressing the STOP key Consult the Saturated Steam Table for the Absolute pressure that corre...

Page 25: ...ave already added 14 5 Press the PROGRAM key one final time If PROGRAM WAIT has not been displayed then continue to press the PROGRAM key until it appears After a brief period the unit will return to...

Page 26: ...nue pressing the program key until CALIB CODE 1 is displayed Using the UP arrow key select CALIB CODE 107 Press the PROGRAM key again until Program Wait is displayed this is an intermediate calibratio...

Page 27: ...O RESERVOIR 21 0V Off 5V On TP10 OUTPUT WATER TO VAC PUMP 15 0V Off 5V On TP11 TP12 OUTPUT STEAM TO CHAMBER 93 0V CLOSE 5V OPEN TP13 OUTPUT SLOW EXHAUST 74 0V CLOSE 5V OPEN TP14 OUTPUT DRAIN COOLING W...

Page 28: ...t ULKA water PUMP operates Air On Air valve 43 Air valve is open Water Res On Mineral free water reservoir valve 21 Water valve to mineral free reservoir is open Exh Res On Vacuum exhaust valve 52 Vac...

Page 29: ...tes Float switch does not sense water and opens valve 21 6 3 Resetting the Autoclave Whenever it becomes necessary to restore the system to normal operation the system must be reset This will remove c...

Page 30: ...29 6 4 Input Output Graph...

Page 31: ...30...

Page 32: ...31...

Page 33: ...32...

Page 34: ...33...

Page 35: ...34...

Page 36: ...83 49 8 22 233 07 39 53 284 70 9 23 235 49 40 54 285 90 10 24 237 82 41 55 287 07 11 25 240 07 42 56 288 23 12 26 242 25 43 57 289 37 13 27 244 36 44 58 290 50 14 28 246 41 45 59 291 61 15 29 248 40 4...

Page 37: ...listed below proceed as follows a Select the program cycle to be modified by pressing the SEL CYCLE key b Press the PROGRAM key until CODE appears c Using the UP DN keys enter the access code for the...

Page 38: ...Default Values Value 3870 3 5 8 30 8 3 5 8 2 3 Dry Time Time required for drying This parameter will set the time desired for drying Access Code 1 Resolution 1 minute Minimum Value minutes Maximum Val...

Page 39: ...age The unit will signal a Cycle End only when the exhaust timer has reached zero and the unit is below the End Temp This also indicates the proper time to open the door and unload the chamber Access...

Page 40: ...eed to achieve in the prevacuum stage This parameter is expressed in psia atmospheric pressure at sea level is 14 7psia A psia lower than 14 7 indicates a vacuum During a cycle the autoclave displays...

Page 41: ...e 3 seconds Maximum Value 1800 seconds 30 minutes Cycle 1 2 3 4 5 6 Default Values Value 3 3 3 3 3 3 8 2 12 WtrResTime Timed extension for pumping mineral free water This parameter sets the length of...

Page 42: ...F 273 F 5 4 F If limitP add is 2 the maximum allowable pressure will be 36 If the pressure reaches the upper limit as defined by limitP add i e 36 in our example the heating element will be switched...

Page 43: ...nit based upon the SteTemp parameter For example if the required temperature is 250 F the required pressure calculated by the program is 16 psig This pressure can be increased by changing the value of...

Page 44: ...his process will begin 4 minutes after the start of the Dry Stage and continue until the Dry stage is completed If Dry Vac 6 the Air Inlet Valve will be used to regulate the pressure during the Dry St...

Page 45: ...and for every 100m below sea level the atmospheric pressure increases 0 14 psia Changes in pressure do to weather will not affect the accuracy of this unit Access Code 13 Resolution 0 1 psi Minimum Va...

Page 46: ...Cycle 1 2 3 4 5 6 Default Values Value 0 7 0 7 0 7 0 7 0 7 0 4 8 2 20 PresInPsig selects the pressure display units This parameter sets the units of pressure that are printed by the printer and used o...

Page 47: ...exhaust will be opened again for 1 second This process will continue until the temperature and pressure are correctly aligned Access Code 13 Resolution 1 Value 0 or 1 If Flash 0 This feature is not ac...

Page 48: ...of the testing instrument should be 500V The insulation resistance should be at least 2 M The test is successful if there was no leakage 2 Protective Earth Impedance Test The test should be performed...

Page 49: ...before removing outer covers 1 Remove the screws holding the rear cover 1 2 Remove the screws holding the cover to the base 2 3 Dismantle the air filter from the service opening cover 3 3 1 Remove th...

Page 50: ...n the chamber or jacket 1 Take off the autoclave cover see para 9 2 Removing the Autoclave s Outer Covers 2 Remove the water reservoir gasket 3 Unscrew the safety valve and remove it from the safety v...

Page 51: ...tch 7 8 Remove the DIG T2 and keypad from the plastic panel 9 Disconnect the DIG T2 from the keypad 10 Install a new DIG T2 to the keypad and reinstall it into the plastic housing 11 Follow the previo...

Page 52: ...51 Electronic box 3870 Electronic box 2540 Control panel 7 2 6 3 2 4 5 7 1 1 Electronic box Electronic box 1 1 7 2 5 6 4 2 3 Control panel 2 7...

Page 53: ...emoving outer covers 9 5 1 Replacing the O rings 1 Open the manual drain cock on the front of the machine and drain any water left in the reservoir 2 Continue turning the drain cock in a counterclockw...

Page 54: ...er Covers of the Autoclave 2 Disconnect the drain tube from the valve using a 9 16 wrench 3 Remove the nut 3 and the ring for drain valve 2 4 Remove the drain valve 1 from the panel 5 Install a new va...

Page 55: ...s not protrude from the doors inner surface 4 Operate the autoclave and verify that there are no leaks 5 Reinstall the door cover 9 6 2 Model 3870 The gauge is located in the plastic housing adjacent...

Page 56: ...t 3 2 Gently pull out the door safety device locking pin 13 And using a bellows extraction tool remove the bellows assembly 4 It is possible that the washers 7 10 will be stuck if so again use compres...

Page 57: ...nnect the flat cable 1 connecting the printer to the DIG T2 board 4 Unscrew the two screws 2 fastening the printer to the panel 5 Remove the printer and install the new one 6 Verify that the printer i...

Page 58: ...place it with a new one 4 Reconnect the black ground wire 2 to the microswitch 5 Test the connection with an ohmmeter Connect the ohmmeter to the common terminal of the microswitch 1 and chassis groun...

Page 59: ...he panel 4 Replace the circuit breaker with a new one 5 Reconnect the electrical wires 6 Reassemble the cover 7 Turn on the autoclave and verify it operates correctly 8 Move the circuit breaker s leve...

Page 60: ...e para 9 2 Removing the Autoclave s Outer Covers 2 Disconnect the wires from the pump 3 Empty the water reservoir by using the drain value on the front of the autoclave 4 Disconnect the piping from th...

Page 61: ...g so will void the warranty To replace the pressure switch perform the following steps Caution Before starting disconnect the instrument from the power source and ensure that there is no pressure in t...

Page 62: ...e water from the jacket by gradually opening the drain valve at the back of the unit Wait until all the water has drained from the jacket see sec 9 17 3 Disconnect the electrical leads for each heater...

Page 63: ...ervoir and a second float below it ensures that the water pump does not run if the compartment is empty The second compartment supplies feed water to the vacuum pump Water enters at the top through a...

Page 64: ...astic tubing going to the reservoir 5 Disconnect any solenoid valves going to the reservoir 6 Drill out the pop rivets holding the legs of the reservoir to the chassis 7 Remove the reservoir from the...

Page 65: ...the water drain valve located at the rear of the autoclave See sec 9 17 3 Remove the electrical connections from the terminals of the electrodes Mark the wires for each electrode to avoid miss wiring...

Page 66: ...65...

Page 67: ...age 1 Take off the autoclave cover see para 9 2 Removing the Outer Covers of the Autoclave 2 Close the external Feed Water Supply valve going to the back of the autoclave Count the number of turns and...

Page 68: ...67...

Page 69: ...hat the electric cord is disconnected and there is no pressure in the chamber or jacket 1 Turn off the main switch 2 Remove the rear cover 3 Turn the valve handle 1 1 4 turn and the jacket will begin...

Page 70: ...as follows 4 1 Press the microswitch and listen to hear it click The clicking sound indicates that the microswitch has been activated 4 2 Close the door until the closing device feels tight also verif...

Page 71: ...e the two Teflon disks 10 resting on the top and bottom of the lock housing axe 5 4 Position the new closing device on the lock housing axe 5 making sure that the Teflon disks 10 are in between the lo...

Page 72: ...g the Outer Covers of the Autoclave 2 Unscrew the nut 3 attaching the sensor 2 to the fitting 1 3 Remove the sensor from the fitting 4 Disconnect the sensor s wire 4 from the electronic box and remove...

Page 73: ...or by any other reason Before any operation or test on the autoclave perform a visual check for loose parts or for signs of over heating and burnt components 10 1 1 Manual Valves There are four 4 man...

Page 74: ...age from the chamber or from the jacket 1 1 2 Faulty heating element 1 1 3 Faulty pressure switch 1 1 4 On model 2540 only 1 1 4 1 Cut off thermostat disconnects the heating element 1 1 5 On model 387...

Page 75: ...Steam trap by pass needle valve is too closed 1 2 4 Slow exhaust valve 74 does not open 1 3 Temperature and or pressure are not calibrated 2 1 Pressure is high and temperature is low 2 1 1 Slow exhaus...

Page 76: ...ber or from the jacket 3 1 2 Faulty heating element 3 1 3 Pressure switch faulty or adjusted to low pressure 3 1 4 On model 2540 only 3 1 4 1 Cut off thermostat disconnects the heating element 3 1 5 O...

Page 77: ...ssure are not calibrated 3 2 3 Air inlet valve 43 is stuck open 3 2 4 Vacuum valve 52 is stuck open 3 2 5 Fast exhaust valve 73 is stuck open 3 2 6 Slow exhaust valve 74 is stuck open 3 2 7 Steam valv...

Page 78: ...elements 5 3 Faulty pressure switch 5 4 Faulty cut off thermostat on model 3870 5 5 Lower electrode does not sense water 5 5 1 Faulty electrode 5 5 2 Faulty water pump 5 5 3 Water inlet pipe to the ja...

Page 79: ...uum pump 7 3 Vacuum piping is leaking 7 4 Non return valve is stuck 7 5 Vacuum valve 52 does not open during vacuum stage due to 7 5 1 Faulty coil or plunger 7 5 2 Pump disconnected 7 5 3 Faulty digit...

Page 80: ...voltage must be 208 VAC With a multimeter check from pin 3 at the AC INPUT connector JP3 on the AC T1 board to pins 1 and 2 Turn on the power The reading must be the same as the voltage coming from th...

Page 81: ...nector on the ANL T2 board Connect the negative probe of a multimeter to TP1 on the test board With the positive probe check TP2 for 5V DC an acceptable range is 4 9 5 3V With the positive probe check...

Page 82: ...hen proceed down the line to the device attached to the other end of the cable or connector and continue with the previous step The problem could be with any one of the external devices connected to t...

Page 83: ...s are OK the display is probably damaged 3 1 DIG T2 board is faulty 4 1 Keyboard is faulty 4 2 DIG T2 board is faulty 5 1 Check if the displayed value is near the atmospheric pressure 5 2 If after set...

Page 84: ...ading of the reservoir float switch position 7 1 Check that the electrodes are sensing water in the jacket 10 TROUBLESHOOTING cont 10 3 Pre process malfunction cont Symptom 6 Pressing the START key do...

Page 85: ...re in the chamber rises during the heat up stage it presses outward on the door This can cause the door switch to be released and cause the system to think the door is opened 2 1 Fast exhaust valve 73...

Page 86: ...DIG T2 board is faulty If the voltage at TP8 is 1VDC and the valve is open the problem is not the DIG T2 but some other element of the system 3 2 Check the connection between the connector JP10 4 and...

Page 87: ...DIG T2 board 4 2 Check the connection between connector JP10 4 and the valve for an open circuit 4 3 Check the coil input voltage with the solenoid connected to the valve If the voltage is higher tha...

Page 88: ...he DIG T2 board is faulty If the voltage at TP9 is 1VDC and the valve is open the problem is not the DIG T2 but some other element of the system 5 2 Check the connection between the connector JP10 5 a...

Page 89: ...nnection between connector JP10 5 and the valve for an open circuit 6 3 Check the coil input voltage with the solenoid connected to the valve If the voltage is higher than 10VDC and the valve does not...

Page 90: ...be open then the problem is on DIG T2 board 7 2 Check the connection between connector JP10 3 and the valve 7 3 Check the coil input voltage with the solenoid connected to the valve If the voltage is...

Page 91: ...ve is open then the DIG T2 board is faulty If the voltage at TP7 is 1VDC and the valve is open the problem is not the DIG T2 but some other element of the system 8 2 Check the connection between the c...

Page 92: ...TP4 if the voltage is higher than 4VDC the problem is on DIG T2 board 9 2 If the voltage at TP4 is 1VDC the problem could be either the ANL T2 or the SSR Turn power off and remove the wire from termin...

Page 93: ...voltage at TP4 is always 1VDC then check if the electrodes are sensing water in the jacket If they are then the problem is the DIG T2 board If the voltage at TP4 is higher than 4VDC the problem could...

Page 94: ...k the fuse at the rear of the unit 12 4 With the power off check if the pump is free to rotate Do this by inserting a flat blade screwdriver into the center of the rear bell housing engaging a slotted...

Page 95: ...and check its resistance At 32 F the resistance across the two wires of the sensor should read 100 The resistance at higher temperature can be calculated by adding 0 2 ohms for each degree F 13 4 Plug...

Page 96: ...he sensor is properly plugged into JP2 on the ANL T2 board 15 2 Check the positioning of the PT100 see sec 9 20 If the positioning is correct then the PT100 sensor is faulty 15 3 The difference in the...

Page 97: ...the ANL T2 board 17 2 Check that the wires and connector are in good condition 17 3 The pressure sensor is defective 17 4 The pressure measuring circuit on ANL T2 board is defective 18 1 Check that th...

Page 98: ...Replace the DIG T2 Possible cause check up and tests 20 1 Check if the float moves up and down freely 20 2 Check that the wires and connectors at the float and the connector at JP11 and JP12 on the AN...

Page 99: ...approx 255 Short circuit the electrode by touching the electrode housing with the wire of the disconnected electrode The displayed number should be 0 If so the electrode is faulty 21 3 Check for an o...

Page 100: ...If the voltage at TP10 is 1VDC and the valve is open the problem is not the DIG T2 but some other element of the system 24 2 Check the connection between the connector JP10 6 and the valve for a grou...

Page 101: ...problem is on DIG T2 board 25 2 Check the connection between connector JP10 6 and the valve for an open circuit 25 3 Check the coil input voltage with the solenoid connected to the valve If the volta...

Page 102: ...is constantly 1VDC then the problem is on the DIG T2 board 26 4 If the voltage at TP17 is higher than 4DC then remove the JP7 connector and check the output of JP7 2 on the AC T1 board to ground 26 5...

Page 103: ...hen the problem is on DIG T2 board 28 2 Check the connection between connector JP10 8 and the valve for an open circuit 28 3 Check the coil input voltage with the solenoid connected to the valve If th...

Page 104: ...lve is open then the DIG T2 board is faulty If the voltage at TP7 is 1VDC and the valve is open the problem is not the DIG T2 but some other element of the system 29 2 Check the connection between the...

Page 105: ...is open then the DIG T2 board is faulty If the voltage at TP13 is 1VDC and the valve is open the problem is not the DIG T2 but some other element of the system 30 2 Check the connection between the co...

Page 106: ...open then the problem is on DIG T2 board 31 2 Check the connection between connector JP10 9 and the valve 31 3 Check the coil input voltage with the solenoid connected to the valve If the voltage is...

Page 107: ...the pump 32 3 Check the vacuum valve 52 is open allowing the pump to draw from the chamber 32 4 Check the vacuum pump With an independent gauge installed in the door port verify that the pump is pulli...

Page 108: ...it between terminals 3 4 and 1 2 and 3 1 and 4 2 and 3 2 and 4 1 Make sure there are no direct shorts 34 2 Next using an ohmmeter check for an open between terminals 1 2 be sure to reverse the meter l...

Page 109: ...th the device in question in the OFF mode pressing the PROGRAM KEY to display the date and time will turn the heaters off a voltage reading from terminal 1 to ground will read approximately 110 VAC A...

Page 110: ...e ANL T2 board or the control circuit on the DIG T2 board 35 1 Check the connection between the connector JP10 12 and the valve for a ground short 35 2 Remove the cover protecting the terminals of the...

Page 111: ...10 12 and the valve for an open circuit 36 2 Check the coil input voltage with the solenoid connected to the valve If the voltage is higher than 10VDC and the valve does not open then the solenoid or...

Page 112: ...he seat of the valve has become dirty from a mineral build up 2 2 Safety relief valve is faulty 3 1 Safety relief valve is faulty 4 1 Safety relief valve is faulty 5 1 Safety relief valve is faulty 6...

Page 113: ...s steam in the jacket by carefully pulling the ring of the safety valve 7 2 The heating elements are not producing enough power 8 1 Check for a vacuum leak use program 6 If maximum vacuum is reached b...

Page 114: ...and tests Check pipes connecting the water reservoir filter and water pump 1 1 There is an air pocket at the pump inlet 1 2 Pipe is clogged 1 3 Filter is clogged See section 10 4 26 See section 10 4 2...

Page 115: ...LE035 0055 ELE035 0055 14 Holder Safety Valve E M CMT100 0002 CMT100 0002 15 Air Jet M E Black CMT100 0006 CMT100 0006 16 Valve Safety Steam 1 4 40 psi ASME SVL029 0004 SVL029 0004 17 Water Level Elec...

Page 116: ...ver RCV254 0009 RCV387 0002 44 Cover Printer Opening Superp POL067 0002 POL067 0002 45 Transducer Pressure MPX 2200 AP THE006 0003 THE006 0003 46 Power Supply PM65 23A ELE035 0032 ELE035 0032 47 Relay...

Page 117: ...g Bolt Door Locking Bellows LOK240 0026 LOK240 0026 69 Housing Door Locking Bellows LOK240 0025 LOK240 0025 70 Membrane pin L0K240 0023 L0K240 0023 71 Inner bushing for bellow CMT067 0002 CMT067 0002...

Page 118: ...Digital Input Electrodes Chamber temperature sensor Vacuum Pump AC Control Water Pump AC Control PC Communication Port Test Points Connector Jacket Pressure sensor Chamber Pressure sensor Pressure sw...

Page 119: ...Input Electrodes Chamber temperature sensor PC Communication Port Test Points Connector Jacket Pressure sensor Chamber Pressure sensor Pressure switch Low Float of Vacuum Pump Reservoir Cut Off Switch...

Page 120: ...119 VESSEL ASSEMBLY Model 2540 EHS Model 3870 EHS...

Page 121: ...120 OUTER CABINET ASSEMBLY Model 2540 EHS Model 3870 EHS...

Page 122: ...121 TRAY HOLDER For model 2540 TRH254 0009 For model 3870 TRH387 0001...

Page 123: ...122 TRAY TRAY HANDLE CMT240 0001 MODEL SIZE CAT No 2540 TRY240 0001 Big TRY387 0001 3870 Small TRY387 0003...

Page 124: ...OK240 0012 LOK387 0012 5 Locking housing axe LOK240 0014 LOK387 0014 6 Door locking device pin LOK240 0019 LOK387 0016 7 Bakelite handle HAN071 0003 HAN071 0006 8 Closing bridge c clip NUT193 0339 NUT...

Page 125: ...manual Size mm 2540 3870 1 FEED WATER 13 Feed water cool fast exhaust 14 Feed water to reservoir 15 Feed water to vacuum pump 3 2 4 4 5 3 4 5 4 5 2 MINERAL FREE WATER 21 Mineral free water inlet 3 4 5...

Page 126: ...125 PIPING DRAWING FOR 2540 EHS...

Page 127: ...126 PIPING DRAWING FOR 3870 EHS...

Page 128: ...127 ELECTRICAL DRAWING FOR 2540 EHS...

Page 129: ...128 ELECTRICAL DRAWING FOR 3870 EHS TILL S N 2307039...

Page 130: ...129 ELECTRICAL DRAWING FOR 3870 EHS AFTER S N 2307040...

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