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Cardiac  Stress  Treadmills  Service  Manual

Introduction  1-1   

1

Introduction

Cardiac Stress medical treadmills are designed specifically for stress test 

applications. The treadmills are not intended to operate independently or 

with a treadmill controller. They are designed for use in conjunction with 

the stress family of exercise test devices (referred to in this manual as the 

stress monitor). 

Four stress treadmill models are available: the TM55/TM65 used with the 

Quinton Q-Stress Cardiac Stress system and the Burdick Quest Exercise 

Stress system, and the ST55/ST65 used with other Quinton stress systems 

such as the Q-4500 and the Q710. 

The cardiac stress treadmill comes in two voltage ranges: 100-120 VAC 

(low voltage unit) and 200-230 VAC (high voltage unit). High voltage 

units have a detachable power cord. An emergency stop button is standard 

on all CE-marked units and optional on non-CE-marked units.

 

Emergency Button

 

Cable Connector

Emergency

Stop Button

(optional on

non-CE-marked

treadmills)

Summary of Contents for TM55

Page 1: ...Cardiac Stress Treadmills Service Manual P N 042099 001 Rev A...

Page 2: ...Trademarks Quinton Burdick Q Stress and Quest are trademarks or registered trademarks of Quinton Cardiology Inc All other product and company names are trademarks or registered trademarks of their res...

Page 3: ...gency stop button This manual is designed for authorized service personnel with proper training There are no user serviceable parts in the treadmills Any attempt by non authorized personnel to service...

Page 4: ......

Page 5: ...1 Stress Monitor to Treadmill Interface 2 1 Headframe Assembly 2 2 Input Power Module 2 2 Drive Board 2 2 Transformer Assembly 2 2 Drive Motor Assembly 2 2 Grade Motor Assembly and System 2 2 Deck and...

Page 6: ...Pot Wires 4 14 Removing the Rack Gears 4 15 Reassembling the Rack Gears 4 16 Replacing a Jammed Rack Gear 4 17 Replacing the Pinion Shaft 4 18 Adjusting the Grade Limit Switches 4 20 Walking Deck Ass...

Page 7: ...tion Tables A 3 Specifications Cardiac Stress Treadmills Specifications B 1 Power Requirements B 2 Speed Vs Weight Range B 2 Part Numbers Final Assemblies C 1 Spares C 1 Placement of Spare Parts C 3 T...

Page 8: ......

Page 9: ...tress treadmill models are available the TM55 TM65 used with the Quinton Q Stress Cardiac Stress system and the Burdick Quest Exercise Stress system and the ST55 ST65 used with other Quinton stress sy...

Page 10: ...rn off the circuit breaker on the treadmill before connecting to or disconnecting from the power source Emergency Stop Button The treadmill may have an emergency stop button located on the front handr...

Page 11: ...m the stress monitor The assembly includes the drive and grade systems and the electronics that drive these systems A three phase AC motor drives the walking belt A DC motor moves the front of the tre...

Page 12: ...to the drive motor determines the drive motor rotational speed The motor current draw is a function of the torque load placed on the motor through the deck assembly by the user The drive board on the...

Page 13: ...The deck and roller assembly provides the running surface for the user This surface consists of a movable and flexible walking belt supported by a semi rigid platform This platform is supported by a s...

Page 14: ......

Page 15: ...ems Noise Vibration Grade Speed Belts Use the tables and flow charts on the following pages to diagnose problems See Chapter 4 for repair and replacement procedures Tools The following tools may be re...

Page 16: ...ing for the treadmill 2 Verify that the power cord is not damaged 3 Replace the configuration plate faulty in rush limiter Power to the stress monitor not on Turn on power to stress monitor Power cord...

Page 17: ...ides a diagnostic summary of bearing noises along with other noises that may indicate problems Problem Action Walking belt slipping Adjust walking belt tension see Belt Tension on page 4 23 Walking be...

Page 18: ...re several bearings to determine which is the faulty one Error Flow Charts Use the flow charts on the following pages for step by step troubleshooting Squealing similar to loose automobile fan belt Dr...

Page 19: ...Cardiac Stress Treadmills Service Manual Troubleshooting 3 5 Bus Voltage Flow Chart Error Code Flow Chart EPHI and EPLO...

Page 20: ...3 6 Troubleshooting Cardiac Stress Treadmills Service Manual Grade Error Flow Chart Error Code Flow Chart E201...

Page 21: ...vice Manual Troubleshooting 3 7 Drive Motor Flow Chart Error Code Flow Chart E203 Troubleshooting chart for all drive motor related error codes and failures Source power and power to drive board on th...

Page 22: ...3 8 Troubleshooting Cardiac Stress Treadmills Service Manual Communications Link Flow Chart Error Code Flow Chart E204...

Page 23: ...Cardiac Stress Treadmills Service Manual Troubleshooting 3 9 Grade Problems Flow Chart...

Page 24: ......

Page 25: ...nt high voltage electrical shock Turn off the treadmill circuit breaker then unplug the treadmill and stress monitor power cords every time you remove the hood Before working on or around any electric...

Page 26: ...the treadmill is dropped Lifting the treadmill requires at least two people When removing the grade motor and chain block the treadmill headframe so that the deck will not drop to the floor causing in...

Page 27: ...e if present from the configuration plate and remove the power cord retainer bracket 3 Disconnect the stress monitor system cable from the treadmill 4 Use a flathead screwdriver to remove the metal ca...

Page 28: ...on page 4 3 2 Remove the two 20 screws that attach the power cord ground wires to the headframe The screws are located in the center of the headframe protective ground is represented by the ground sy...

Page 29: ...3 Detachable Cords on High Voltage Units Unplug the power cord from the connector on the configuration plate and plug in the new cord Replacing the AC Drive Module The AC Drive Module with treadmill...

Page 30: ...nd return it to with an authorized return number to authorized technical support 14 Reassemble using steps 2 through 13 in reverse order 15 If no other service is required replace the treadmill hood a...

Page 31: ...need to be replaced if the poly V drive belt slips if the idler pulley bearing makes noise or if the tensioner roller is damaged Warning Do not attempt to disassemble the tensioner The internal spring...

Page 32: ...marks are lined up 3 Loosen the drive belt tensioner by turning the mounting bolt counter clockwise then pivot the tensioner away from the belt 4 Remove the drive belt from the drive pulley 5 Loosen t...

Page 33: ...tep 9 on page 4 3 Replacing the Drive Motor Replace the drive motor when the motor is inoperative see Drive Motor flow chart on page 3 7 1 Remove the treadmill hood and power as described in Removing...

Page 34: ...the front roller drive pulley to align the outside face of the motor drive pulley to within 0 020 inch Tighten the setscrews 10 Replace the poly drive V belt as previously described on page 4 8 11 If...

Page 35: ...as described in step 9 on page 4 3 Replacing the Grade Motor Place a clean sheet of cardboard or a clean rag on the treadmill deck before starting this procedure Do not elevate the treadmill 1 Block...

Page 36: ...rocket with the pinion shaft chain sprocket 8 Restore power to the treadmill and stress monitor and test the new grade motor Warning High voltage is present when the treadmill is plugged into a power...

Page 37: ...aligning it correctly on the sprockets 5 Replace the master link 6 Secure the C Clip on the master link 7 If no other service is required replace the treadmill hood as described in step 9 on page 4 3...

Page 38: ...event damage don t mesh the gears too tightly Leave enough clearance for each gear c Be sure to leave the setscrew accessible and loose d See Grade Pot Wires below 9 Calibrate the grade pot as describ...

Page 39: ...of the headframe onto 6 inch wooden blocks to take the weight off the wheels 3 Remove the treadmill hood and power as described in Removing the Treadmill Hood on page 4 3 If the rack gear is jammed n...

Page 40: ...ase grade until rack gears start bouncing on the pinion shaft Hold the limit switches closed to let the rack gear travel beyond its normal range 9 Turn off and unplug the treadmill 10 Lift rack gears...

Page 41: ...emove the blocks that support the headframe 12 Reinstall the grade pot bracket and assembly 13 Calibrate the grade potentiometer as described on page 4 26 14 If no other service is required turn the t...

Page 42: ...ly and poly V drive belt 13 Restore power and decrease the grade to run the other rack gear out the top 14 Reassemble the rack gear as described on page 4 16 15 Calibrate the grade potentiometer as de...

Page 43: ...ng the pinion shaft 9 Replace the handrail support bracket 10 Use a straight edge to align the grade sprocket and grade motor sprocket then tighten the setscrew 11 Replace the grade motor chain as pre...

Page 44: ...the rack gear is changed 1 Remove the treadmill hood and power as described in Removing the Treadmill Hood on page 4 3 2 Loosen but do not remove the two Phillips screws that secure each grade limit...

Page 45: ...walking platform 6 Remove the siderail insert from one side of the deck then loosen the two setscrews that hold the siderail covers to the siderails 7 Slide the siderail cover back 10 inches 8 Remove...

Page 46: ...emove only the left siderail bolts and cover The belt slides on and off Mark the location of the rail to the headframe before removing the bolts 3 Remove the drive pulley bottom cover a Remove the two...

Page 47: ...Adjust as necessary Adjusting the Walking Belt Belt Tension Adjust the walking belt tension whenever the belt slips or moves unsteadily during operation after installing a new walking belt each time y...

Page 48: ...es of masking tape or two light pencil marks on the right edge of the belt exactly 50 000 inches apart 3 Repeat step 2 on the left edge of the belt 4 Alternately turn the left and right adjustment scr...

Page 49: ...en the gap between the roller and the guard exceeds 3 8 in 9 5 mm 1 Loosen but do not remove the two screws attaching the rear roller guard to the deck hold the nuts on the underside of the deck frame...

Page 50: ...f located at the elbow of the handrail grab the cable where it extends from the rail and pull it out 6 Disconnect the cable from the configuration plate 7 Place a strain relief on the handrail then pa...

Page 51: ...ews loosened in step 5 Caution To prevent damage when replacing the bracket don t mesh gears too tightly Leave 1 16 in clearance for each gear 8 Verify that the treadmill operates through its full gra...

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Page 53: ...when it is started Recommended Service Routine service is necessary every six 6 months When service is required repairs can be done to the modular level Routine Maintenance Visual Inspection Inspect...

Page 54: ...ed to cool the unit and dissipate heat from the drive motor and drive board on the AC Drive Module To prevent damage to components periodically vacuum the mechanical drive and the area behind the AC D...

Page 55: ...ning 4 Replace the hood Replacement Schedules Belts should be replaced if they are frayed or show excessive wear Electrical Testing Electrical testing is to be done by the facility s biomedical depart...

Page 56: ......

Page 57: ...for use with the monitoring system be certain the summation leakage current does not exceed local or provincial standards The treadmill must be on an appropriate dedicated electrical circuit with a po...

Page 58: ...ly Failure to follow these guidelines can produce a serious or possibly fatal electrical shock hazard Consult a qualified electrician as required Do not start the treadmill when someone is standing on...

Page 59: ...he Cardiac Stress Treadmills should assure that they are used in such an environment Emissions test Compliance Electromagnetic environment guidance RF emissions CISPR 11 Group 1 The Cardiac Stress Tre...

Page 60: ...ferential mode 2 kV common mode 1 kV differential mode 2 kV common mode Mains power quality should be that of a typical commercial or hospital environment Voltage dips short interruptions and voltage...

Page 61: ...mined by an electromagnetic site surveya should be less than the compliance level in each frequency rangeb Interference may occur in the vicinity of equipment marked with the following symbol NOTE 1 A...

Page 62: ...aximum output power of transmitter W Separation distance according to frequency of transmitter m 150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2 5 GHz 0 01 0 12 0 12 0 23 0 1 0 38 0 38 0 73 1 1 2 1 2...

Page 63: ...ph 1 3 to 15 4 km h 0 2 mph Grade Range 0 to 25 0 5 Physical Weight ST TM55 352 lb 160 kg ST TM65 375 lb 170 kg Nominal Walking Area ST TM55 20 in x 55 in 51 cm x 140 cm ST TM65 20 in x 65 in 51 cm x...

Page 64: ...the hood under the circuit breaker switch Full load current is computed as described in section 430 24 of the National Electrical Code Speed Vs Weight Range Nominal Voltage Range min max Hertz Current...

Page 65: ...Strain Relief Connector Lock Power Cord Low Voltage Treadmill High Voltage Treadmill 001227 011 031453 011 Configuration Plate Assembly Low Voltage Low Voltage With Emergency Stop Button High Voltage...

Page 66: ...0 002 Bumper 031194 002 End Cap Rear Left 032641 001 End Cap Rear Right 032640 001 Side Handrail Kit Short TM55 032758 001 Side Handrail Kit Short TM65 032758 002 Side Handrail Kit Long TM55 032759 00...

Page 67: ...ON 55 TREADMILL 7 032752 002 PLASTIC EXTRUSION 65 TREADMILL 8 032804 004 INSERT PLASTIC EXTRUSION BLUE 9 033507 003 DRIVE ROLLER ASSY 10 032387 001 POLY V DRIVE BELT 11 032784 001 ASSY ROTARY TENSIONE...

Page 68: ...NK KIT 26 019082 001 SWITCH SNAP ACTION 27 033502 002 WHEEL 4 BALL ROLLER BEARING 28 032362 002 HOOD ASSEMBLY No labels 29 037080 001 EMERGENY SHUTOFF SWITCH FIELD INSTALLATION KIT 30 036734 001 HANDG...

Page 69: ...Cardiac Stress Treadmills Service Manual PartNumbers C 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22...

Page 70: ...C 6 Part Numbers Cardiac Stress Treadmills Service Manual 24 15 25 14 18 21 19 10 11 16 23 17 20 13...

Page 71: ...Cardiac Stress Treadmills Service Manual PartNumbers C 7 27 26 27 13 18 15 26...

Page 72: ...C 8 Part Numbers Cardiac Stress Treadmills Service Manual 30 29 31 28...

Page 73: ...dmills Service Manual PartNumbers C 9 Treadmill Part Number Configuration Rules ST models are not available as a Burdick branded treadmill CE units will always have the E Stop CE units are available o...

Page 74: ......

Page 75: ...eliability of the protective earth connection when present On power connected to mains Type BF equipment contains an F type isolated patient applied part providing a high degree of protection against...

Page 76: ...admills Service Manual Decreases grade of treadmill walking belt Increases grade of treadmill walking belt Speeds up treadmill walking belt Slows treadmill walking belt Warning T Timed fuse slo blo Hz...

Page 77: ...Drawings E 1 E Drawings Wiring Diagrams These wiring diagrams for both the low voltage and high voltage treadmill models are shown as follows Wiring Diagram Low Voltage Treadmill on page E 3 Wiring Di...

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Page 79: ...Cardiac Stress Treadmills Service Manual Drawings Drawings E 3 Drawings E Wiring Diagram Low Voltage Treadmill...

Page 80: ...E 4 Drawings Cardiac Stress Treadmills Service Manual Wiring Diagram High Voltage Treadmill...

Page 81: ...lacing 4 26 Emergency stop switch replacing 4 25 G Grade limit switches adjusting 4 20 Grade motor assembly 2 2 Grade motor replacing 4 11 Grade potentiometer replacing 4 13 H Headframe 2 1 2 2 Hood r...

Page 82: ...7 Theory of operation 2 1 Tools 4 2 Transformer replacing 4 10 Treadmill interface 2 1 U User interface 2 1 W Walk belt tracking 4 24 Walking belt adjusting 4 23 replacing 4 22 Walking deck assembly...

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