Skytron HERCULES 6700B Maintenance Manual
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Skytron HERCULES 6700B Maintenance Manual

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SURGICAL TABLE
MAINTENANCE MANUAL
MODEL 6700B HERCULES
7/05

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Summary of Contents for Skytron HERCULES 6700B

  • Page 1 SURGICAL TABLE MAINTENANCE MANUAL MODEL 6700B HERCULES 7/05...

  • Page 3: Table Of Contents

    3-10. BRAKE CIRCUIT DIAGNOSIS CHART ..................21 3-11. Flexible Hose Identification and Placement ................. 22 3-12. Kidney Lift System ........................23 7/05 Although current at time of publication, SKYTRON's policy of continuous development makes this manual subject to change without notice.
  • Page 4 Table of Contents (continued) SECTION IV ELECTRICAL SYSTEM ....................26 4-1. General ............................26 4-2. Components ..........................26 4-3. Battery Model Components ......................26 SECTION V ELECTRICAL TROUBLESHOOTING ................27 5-1. General ............................27 5-2. Troubleshooting Notes ......................... 27 5-3. Main Switch ..........................
  • Page 5 • Check Side Rails • Check Velcro • Check Lateral Tilt Housing Bolts • Lubricate Elevation Slider Assembly with SKYTRON Slider Grease P/N D6-010-89 • Tighten X-Ray Top Stand-Offs, Use Loc-tite • Lubricate Castors •Check brake pads for wear and inspect brake cylinders for proper operation.
  • Page 6 EQUIPMENT LABELS AND SPECIFICATIONS INDICATES DANGEROUS VOLTAGE, 120 V, 60 Hz CLASS I DEFIBRILLATION PROOF, TYPE B EQUIPMENT- IPX4 RATED. INTERNALLY POWERED EQUIPMENT TYPE B EQUIPMENT PROTECTIVE GROUNDING. IN ORDER TO ENSURE PROPER GROUNDING RELIABILITY, THIS TABLE MUST BE CONNECTED TO A PROPERLY GROUNDED HOSPITAL GRADE OUTLET.
  • Page 7 6700B Hercules General Purpose Surgical Table Specifications 14-1/2" 12-1/2" 19-1/4" 23" 24-1/4" 14-1/2" 19-3/4" TOP VIEW 76" 60˚ 5-3/4" 21-3/4" 3" 90˚ 44" MAX 23" MIN 5-3/4" 8-1/2" 19" 36" SIDE VIEW END VIEW ENTELA CERTIFIED Electrical Specifications TO UL2601-1 Power requirements 120 VAC, 60Hz, 450 Watts CAN/CSA601.1, IEC 60601-2-46...

  • Page 9: Section I Hydraulic System

    SECTION I HYDRAULIC SYSTEM 1-1. General a. Oil Reservoir - Main oil supply. Approximately two quarts. Electro-Hydraulic System b. Motor/Pump Assembly - A positive displace- The hydraulic system (with the exception of the ment gear type pump provides the necessary oil hydraulic cylinders and hoses) is contained within the base of the table.

  • Page 10: Component Operation

    e. Hydraulic Lines, Fittings, Connections - They The main component of the valve is an adjustable provide a path for the hydraulic oil. spring loaded plunger that is pushed off from its seat by the oil pressure. The oil then flows back into f.

  • Page 11: Mini-Valves

    c. Mini-Valves Also, by using this control method, it doesn’t matter The operation of the mini-valves is identical for all what size cylinder and piston is used because the table functions except the elevation and brake speed can be controlled by restricting the return oil. circuits.

  • Page 12: Mini-Valve Right Port Activated

    e. Mini-Valve Right Port Activated f. Mini-Valve Left Port Activated (See figure 1-6) (See figure 1-7.) Slave Cylinder Piston Moves to Left Slave Cylinder Piston Moves to Right Right Mini-Valve Port is Supply Line Left Mini-Valve Port is Supply Line Left Mini-Valve Port is Return Line Right Mini-Valve Port is Return Line INLET...

  • Page 13: Hydraulic Cylinders (Slave Cylinders)

    g. Hydraulic Cylinders (Slave Cylinders) There are several different types of hydraulic cylin- 2. Trendelenburg Cylinder Assembly - The ders used in the table that activate the control Trendelenburg tilt assembly consists of two cylin- functions. With the exception of the elevation and ders, pistons and connecting rods.
  • Page 14 4. Elevation Cylinder - This single action cylin- der does not have hydraulic fluid on both sides of KIDNEY LIFT the piston. It depends on the weight of the table top assembly to lower it. The cylinder is set in the center of the elevation PINION main column.

  • Page 15: Elevation Cylinder Return Circuit

    h. Elevation Cylinder Return Circuit A three-way (single check valve type) mini-valve 3. Manually controlled emergency brake re- controls both the elevation and return circuits. The lease. elevation circuit operation within the mini-valve is identical to the operation of the four-way valves 4.

  • Page 16: Emergency Brake Release

    k. Flex/Reflex System When activated, the return hydraulic circuit oper- ates similar to the elevation cylinder return circuit. The Flex/Reflex system incorporates an additional Return springs inside the single action brake cylin- mini-valve which connects the trendelenburg and ders retract the brake pads and provide the pres- back section hydraulic systems in a series.

  • Page 17: Hydraulic Adjustments

    1-3. Hydraulic Adjustments To adjust: a. Fluid Level. 1. Remove the blind cap and attach a hydraulic pressure gauge to the main oil galley using a 6mm The fluid level should be approximately 1/2" below plumbing bolt. See figure 1-19. the filler hole or gasket surface.
  • Page 18 A pressure gauge should be used to set the speed of the back section, Trendelenburg and flex control functions. TABLE DOWN To adjust: TRENDELENBURG REVERSE TREND. TILT RIGHT 1. Attach the pressure gauge onto the main oil TILT LEFT galley as shown in figure 1-19. REFLEX FLEX BACK UP...

  • Page 19: Section Ii Mechanical Table Adjustments

    SECTION II MECHANICAL TABLE ADJUSTMENTS 2-1. Back Section Gear Mesh Adjustment To adjust: The gear mesh is adjusted by the use of an eccen- Remove the seat section top for access to the cam tric cam. This cam moves the gear teeth closer locking set screws and loosen the set screws.

  • Page 20: Head Section Adjustment

    NOTE 2-3. Head Section Adjustment The leg section cylinder eccentric cam is located under the nameplate on the The head section can be adjusted to eliminate any side casting. To make an adjustment, flexing throughout it's range of travel. the nameplate will have to be removed and a new nameplate will have to be To adjust: installed when the adjustment is com-...

  • Page 21: Section Iii Hydraulic Troubleshooting

    SECTION III HYDRAULIC TROUBLESHOOTING 3-1. Precautions 5. Is the problem no movement of a table surface or does the table surface lose position? Before attempting to troubleshoot any hydraulic problem on the table, please read through the pre- Once the problem has been determined, concen- cautions and notes below.

  • Page 22: Elevation Diagnosis Chart

    3-3. ELEVATION DIAGNOSIS CHART Reason Problem Pressure Relief Valve Not Set Properly Table will not elevate properly Low on Oil Spool Valve Not Centered Defective Pump Defective Mini-Valve Defective Solenoid or Wiring Defective Relay Box or Pendant Control Leaking Cylinder Hose Uneven Weight Distribution Incorrect Speed Adjustment Table will not descend properly...

  • Page 23: Trendelenburg Diagnosis Chart

    3-4. TRENDELENBURG DIAGNOSIS CHART Problem Reason Trendelenburg function moves improperly Incorrect Speed Adjustment Spool Valve Not Centered Bad Check Valves Low on Oil Pinched Hose Defective Mini-Valve Pressure Relief Valve Not Set Properly Bad Solenoid or Wiring Defective Relay Box or Pendant Control Defective or Dirty Check Valve Trendelenburg function chatters or loses position Oil Leakage in Circuit...

  • Page 24: Lateral Tilt Diagnosis Chart

    3-5. LATERAL TILT DIAGNOSIS CHART Problem Reason Lateral tilt function moves improperly Incorrect Speed Adjustment Spool Valve Not Centered 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 position Defective or Dirty Check Valves Oil Leakage in Circuit...

  • Page 25: Flex System Diagnosis Chart

    3-6. FLEX SYSTEM DIAGNOSIS CHART Problem Reason Back Section or Trendelenburg function moves Incorrect Speed Adjustment (Trendelenburg, Back improperly section or Flex - check with gauge) Spool Valve Not Centered NOTE Bad Check Valves Low on Oil If Flex System does not function prop- Pinched Hose erly, check the back section and...

  • Page 26: Back Section Diagnosis Chart

    3-7. BACK SECTION DIAGNOSIS CHART Problem Reason Back Section function moves improperly Incorrect Speed Adjustment Spool Valve Not Centered 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 Kidney Bridge Raised Back Section function chatters or loses position Defective or Dirty Check Valves...

  • Page 27: Leg Section Diagnosis Chart

    3-8. LEG SECTION DIAGNOSIS CHART Problem Reason Leg function moves improperly Incorrect Speed Adjustment Spool Valve Not Centered 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 Leg function chatters or loses position Defective or Dirty Check Valves Oil Leakage in Circuit...

  • Page 28: Kidney Lift Diagnosis Chart

    3-9. KIDNEY LIFT DIAGNOSIS CHART Problem Reason Kidney Lift moves improperly Incorrect Speed Adjustment Spool Valve Not Centered Bad Check Valve Low on Oil Pinched Hose Defective Mini-Valve Pressure Relief Valve Not Set Properly Bad Solenoid Defective Relay Box or Pendant Control Defective or Dirty Check Valve Kidney Lift chatters or loses position OiI Leakage in Circuit...

  • Page 29: Brake Circuit Diagnosis Chart

    3-10. BRAKE CIRCUIT DIAGNOSIS CHART Reason Problem Emergency Brake Release Valve Open or Defec- Brakes will not set properly tive Spool Valve Not Centered Bad Check Valve NOTE Low on Oil If brakes have been released with the Pressure Relief Valve Not Set Properly Emergency Brake Release Valve, Pinched Hose brakes will not reset until BRAKE UN-...

  • Page 30: Flexible Hose Identification And Placement

    3-11. Flexible Hose Identification and Placement hoses from the plumbing terminal to their respec- tive hydraulic cylinders. Figure 3-10 shows the The flexible hydraulic hoses used in the table are correct placement of the flexible hydraulic hoses and their respective number codes. number coded to aid in the correct placement of the TRENDELENBURG TILT...

  • Page 31: Kidney Lift System

    3-12. Kidney Lift System The Kidney Lift cylinders are connected in series 3. Open the bypass valve by loosening the so that both cylinders operate simultaneously. screw in the bottom of the valve and activate Hydraulic pressure on one side of the lead piston "KIDNEY UP".
  • Page 32 b. Cylinder Adjustment - If either of the kidney lift cylinders reaches the end of the down stroke 4. Leave the bypass valve open and activate before the other one, an adjustment is needed. Use "KIDNEY DOWN". Hydraulic pressure keeps the the following procedure to adjust the system.
  • Page 33 SOLENOID PENDANT RETURN COIL 24VDC CONTROL CIRCUIT HN10 HN11 MINI-VALVES BUZZER CN1B RELAY BOX CN1A 22 VAC FROM AUXILIARY TRANSFORMER SWITCHES CN11 BATTERIES CN10 120 VAC TO TRANSFORMER PUMP CIRCUIT BREAKER CAPACITOR/ RECTIFIER POWER CORD BASE CONNECTOR FOOT MAIN BATTERY CONTROL POWER INDICATOR...

  • Page 34: Section Iv Electrical System

    SECTION IV ELECTRICAL SYSTEM 4-1. General 4-2. Components The complete electrical system (with the excep- Refer to figure 4-1 for the relationship of the elec- tion of the hand-held pendant control and the return trical components. circuit micro-switches) is contained within the base of the table.

  • Page 35: Section V Electrical Troubleshooting

    SECTION V ELECTRICAL TROUBLESHOOTING 5-1. General 5-3. Main Switch The battery table components operate on 24VDC. The main power supply, 120 VAC, 60 HZ, comes The internal charging system also incorporates the in through the power cord and through the components to transform the 120VAC input to Power Switch.

  • Page 36: Batteries

    b. Test Results a. Battery System Test If the correct voltage is obtained, everything is 1. Disconnect the main power cord and using good up to this point and the problem would have a DC voltmeter, test each individual battery at its to be in another area.
  • Page 37 5-5. Capacitor / Rectifier / AC120V Transformer The Capacitor / Rectifier Unit contains the battery charging system as well as the components for AC120V operation (except the transformer). a. Transformer Test BROWN 1. Confirm 120VAC input at HN1 using Main Switch test in 5-3a.

  • Page 38: Pendant Control

    5-6. Pendant Control e. Charging Indicator Test The Pendant Control is part of the solid state, multi- Charging Indicator contains 10 LEDs, 3 red, 4 plex, logic control system. The pendant control yellow and 3 green. contains illuminated, circuit board mounted switches and a micro processor.
  • Page 39 If the correct readings are obtained, this part of the circuit is okay and the problem may be the Pendant Control or the Relay Box. Contact SKYTRON if all tests performed indicate that the problem is located in the Pendant Control.

  • Page 40: Auxiliary Switches

    5-7. Auxiliary Switches The following tests will determine if the auxiliary switches are functioning properly. a. Switch Test Disconnect connector CN2 at the Relay Box and using an ohmmeter check for continuity at the 041905.010 connector pins (pin 1A common) while activating the appropriate switch.
  • Page 41 b. Test Results: Also, inside the relay box is a step-down trans- former and full-wave rectifier which decreases the If you do not receive the correct meter readings, voltage to 5-6 volts. This low voltage potential the problem is in the input wiring, connectors or controls the relays by the use of the hand-held components.

  • Page 42: Main Wire Harness Continuity Tests

    If all tests have 5-12. Meter should read 24 volts. been conducted and it appears that the Relay Box is faulty, contact SKYTRON. 5-9. Main Wire Harness Continuity Tests If correct meter readings are not received in tests...
  • Page 43 b. CN4 to Pump Test c. CN4 to Capacitor / Rectifier Unit Test Disconnect connectors CN4 and HN4. Disconnect connectors CN4, and HN3. Leave all other connectors connected. Leave all other connectors connected. Using an ohmmeter, test for continuity Using an ohmmeter, test for continuity between the pins of CN4 and pins on HN4.

  • Page 44: Solenoids

    1. Disconnect connectors CN1A and CN1B. 5-10. Solenoids Measure the resistance between the two pins at the connector for the solenoid in question as shown The solenoids are energized by 24 volt potential in figure 5-16. Connector must be disconnected. that is controlled by the relay box.

  • Page 45: Motor/Pump Assembly

    1. Turn OFF both BATTERY and AC120V NOTE operating modes. Whenever there are several compo- nents of the same type, a defective 2. Use an ohmmeter to test for continuity unit can also be detected by substi- between terminals 3 and 4 on the connector HN4. tuting a known good unit or wire con- See figure 5-18.

  • Page 46: Return-To-Level / Positioning Inhibit Micro-Switches

    5-12. Return-to-Level / Positioning Inhibit Micro-Switches. exceeds 20°. Likewise, Trendelenburg positioning is limited to 20° if lateral tilt positioning exceeds The return-to-level feature is activated by a single 20°.An audible alarm will sound if the positioning button on the pendant control and automatically maximums are achieved.

  • Page 47: Troubleshooting

    5-13. Troubleshooting All of the micro-switches are connected to the relay If a problem is suspected in the return / positioning box via a wiring harness and the micro-switch riser cord using connectors CN10, HN10 and HN11. circuits, disconnect the connector CN10 from the Connectors HN10 and HN11 are located under the Relay Box to eliminate the circuits.
  • Page 48 a. Switch Test Turn Main Power ON, lock the table brakes, and NOTE place the table top sections in a level position with the Kidney Lift down. Disconnect connector CN10 If you do not receive the proper continu- from the relay box and using an ohmmeter, test the ity results at connector CN10 it does not wiring and switch operation at the appropriate pin necessarily mean the micro-switch is...
  • Page 49 BACK SECTION LEG SECTION NS-2 LS-2 NS-1 BLACK PURPLE/ WHITE WHITE/BLACK WHITE (HN10) CN10 (HN10) CN10 (HN11) RISER CORD CN10 RISER CORD (HN10) ORANGE CN10 (HN11) CN10 When table is in Trendelenburg Position, NS-1 brings the top back to level. NS-1 TRENDELENBURG - TEST PINS 1 &...
  • Page 50 BACK SECTION LEG SECTION LS-3 LS-3 NS-3 NS-3 NS-4 WHITE NS-4 YELLOW BROWN GREEN (HN10) CN10 (HN10) CN10 (HN11) RISER CORD RISER CORD CN10 BLUE (HN10) CN10 (HN11) YELLOW/BLACK CN10 When table is in Tilt Position more than 20º, Trendelenburg is limited to 20º. LS-3 LATERAL TILT LIMIT - TEST PINS 15 &...
  • Page 51 BACK SECTION NS-5 LEG SECTION NS-5 PINK BLUE BROWN/WHITE PURPLE NS-6 NS-6 (HN10) (HN10) CN10 RISER CORD CN10 (HN10) CN10 (HN10) When the Back Section is Down, When the Back Section is Up, NS-5 brings the Back Section Up to level. NS-6 brings the Back Section Down to level.
  • Page 52 LEG SECTION BACK PINK/WHITE SECTION NS-7 NS-7 BLACK/WHITE GRAY GRAY NS-8 NS-8 BLACK (HN10) PINK/WHITE (HN11) CN10 GRAY (HN11) CN10 RISER CORD GRAY (HN10) CN10 BLACK (HN10) BLACK/WHITE When the Leg Section is Down, When the Leg Section is Up, NS-7 brings the Leg Section Up to level.
  • Page 53 b. Switch Adjustment. If proper readings are not obtained during test or if 3. To adjust the Leg Section switches remove table does not properly return to level, use the seat section top, loosen the 2 phillips head screws following procedure to adjust the switches. securing bracket, adjust the switch, tighten the screws and replace the seat section top.
  • Page 56 5000 36th Street S.E., Grand Rapids, MI 49512 1-800-SKYTRON or 1-616-957-0500 • FAX 1-616-957-5053...

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