Life Fitness LS 9100 User manual

Life Fitness 9100/9500HR Belt Drive Series Stairclimbers
CUSTOMER SUPPORT SERVICES
SERVICE MANUAL
LS 9100
LS 9500HR

Life Fitness 9100/9500HR Belt Drive Stairclimbers
INTRODUCTION
HOW TO USE THIS SERVICE MANUAL AND CONTACT CUSTOMER SUPPORT SERVICES
This service manual is applicable to Model LS 9100 (heart rate function via telemetry) and Model LS 9500HR (heart rate
function via Lifepulsedigital sensors and telemetry) belt drive stairclimbers.Information is appropriate to both models unless
otherwise noted.
Note: Information represents typical configuration and may differ slightly from actual equipment.
The Service Manual provides recommendations for safe and efficient approaches to problem situations. The manual is
separated into five sections. INTRODUCTION
TABLE OF CONTENTS
THEORY OF OPERATION
Section I
qTROUBLESHOOTING GUIDES
Section II
qDIAGNOSTIC MODE
Section III
q"How To..." SERVICE AND REPAIR GUIDES
Section IV
qPARTS IDENTIFICATION
qWIRING BLOCK DIAGRAMS
Section V
qMISCELLANEOUS INFORMATION
Refer to TABLE OF CONTENTS for section topics.
When an operating problem occurs, refer to trouble shooting guides and diagnostic mode to isolate cause. When applicable,
guides are listed by problem symptom followed with suggestions of probable cause(s).
Once source of problem is identified, consult "How To..." guides for recommended repair procedures. "How To..." sub-sections
are organized by replaceable part or assembly name. For convenience, sub-section lists recommended “Tools Required” to
complete specific function.
Refer to PARTS IDENTIFICATION to identify proper name and number of part to order for repair of equipment.
Reproducible telefacsimile order claim form is provided in COMMUNICATING BY TELEFACSIMILE for convenient ordering of
service parts.
To order, contact Life Fitness Customer Support Services.
Via telefacsimile - 24 hrs. /day, 7 days/week.
Via telephone - Monday through Friday from 8:00 AM to 6:00 PM ( C.S.T.).
Via post - At address cited.
To expedite Life Fitness Customer Support Services response to your needs, please provide the following information.
1. Model number
2. Serial number
3. Symptom of problem
4. Part name and number to order (if known)
Before installing part, review "How To..." and follow step by step procedures recommended to install part safely and efficiently.
If you have questions or comments please telephone, ‘fax or, write us. We are:
CUSTOMER SUPPORT SERVICES
10601 Belmont Avenue; Franklin Park, IL 60131; U.S.A.
Telephone: [phone] or, Toll Free 800.351.3737 Telefacsimile: 847.288.3702 or, Toll Free 800.216.8893

Life Fitness 9100/9500HR Belt Drive Stairclimbers
THEORY OF OPERATION
The electronics system of the Life Fitness LS 9500HR and LS 9100 belt drive stairclimbers is made up of three
distinct modules; the Power Entry Module, the Display Console, and the Power Control Board.
120 volts AC enters the Power Entry Module. It passes through a transformer and is converted to 14 volts AC. The
14 volts AC is applied to the Power Control Board at connector J4, pins 1 and 2. The voltage passes through a
bridge rectifier, BR1 and is converted to an unregulated positive DC voltage. This unregulated voltage will vary from
11 volts DC to 18 volts DC depending on the wall supply and load. This voltage can be measured by placing the
positive probe of your DVM on Positive Test Point at BR1 and the negative probe on the negative Test Point at
BR1.
The other voltage developed on the Power Control Board is a regulated positive 8 volts DC. The regulated 8 volts
DC is developed by transistor (Q2) . This voltage can be measured by placing the positive probe of your DVM on
the collector (case) of Q2 and the negative probe on the anode of D1.
This 8 volts DC is supplied to the Console at connector J1, pin 4 and is used to power the LED’s. The 8 volts DC is
also used as a supply voltage for the positive 5 volt DC regulator (U1) on the Console board, which is VCC for the
Microprocessor. The Keypad entry (user’s input), Life Pulse (9500HR only), and Telemetry are all processed by the
Microprocessor.
The Console, by pulse width modulating the field control line, sends a signal to the Power Control Board at J1, pin
1. The Power Control Board switches the field current to the Alternator, through Q1. This field current along with
the energy supplied by the user is sent to the Load Resistors. This places resistance on the rotation, thus providing
the load sensation felt by the user.
The Alternator also provides the source for the RPM sensor circuit. The AC tap output on the Alternator enters the
Power Control Board at J2, pin 3. This AC voltage is wave conditioned and outputted at connector J1, pin 2 to the
Console connector P2, pin 6. Where it is processed and displayed by the Console.
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RISK OF FIRE,REPLACE FUSE AS MARKED.
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See Wiring Diagram for more detailed information

PLACE HOLDER
FOR BLANK
PAGE BACK OF
INTRODUCTION
PAGE

Life Fitness 9100/9500HR Belt Drive Stairclimbers
TABLE OF CONTENTS
INTRODUCTION
How to use this Service Manual
Theory of Operation
SECTION I PAGE
TROUBLESHOOTING GUIDES…………………………………………………………………………………. 1
SYMPTOM
Handlebar/Lifepulse Grips Loose (9500HR Only)...................................…………………….. 2
Grinding Noise, Slipping, Both Pedals Are On The Floor........................................………… 3
No Power......................................................................................................………………… 4
Display Console Keys Do Not Function...............................................................…………… 5
Display Console Initializes Then Fails..................................................................………….. 6
Erratic Display Console LED’s...........................................................................…………….. 7
Immediate, Excessive Resistance Load At Start Of Program..................................………... 8
Immediate, Excessive Resistance Load During Program.........................................……….. 9
Inaccurate Count Of Steps - Goal Or Actual........................................................…………… 10
Excessive Resistance Varies During Program.......................................................…………. 11
Resistance Varies During Program.....................................................................……………. 12
Display Has No RPM........................................................................................……………… 13
No Heart Rate or Display Readout......................................................................…………… 14
Erratic Heart Rate Display.................................................................................…………….. 15
SECTION II PAGE
DIAGNOSTIC MODE 1
How To... EXECUTE (Large Display) 2
To Enter Diagnostic……………………………………………………………………………….. 3
Keypad Test……………………………………………………………………………………….. 3
Led Test……………………………………………………………………………………………. 4
Alternator test……………………………………………………………………………………… 5
Options Mode………………………………………………………………………………………. 6
Statistics Mode…………………………………………………………………………………….. 7
EEROM Statistics…………………………………………………………………………………. 8
Enable Lifepulse…………………………………………………………………………………… 9
How To... EXECUTE (Small Display) 10
To Enter Diagnostic………………………………………………………………………………… 11
Keypad Test………………………………………………………………………………………… 11
Led Test…………………………………………………………………………………………… 12
Program Version………………………………………………………………………………….. 12
Network Status…………………………………………………………………………………….. 12
Program Duration………………………………………………………………………………….. 13
Telemetry……………………………………………………………………………………………. 13
English or Metric Units…………………………………………………………………………….. 13
Watts (On/Off)……………………………………………………………………………………… 13
Mets (On/Off)……………………………………………………………………………………….. 13
Total Hours…………………………………………………………………………………………. 14
Model Selection……………………………………………………………………………………..
Photo-Shoot…………………………………………………………………………………………. 14 14

Life Fitness 9100/9500HR Belt Drive Stairclimbers
TABLE OF CONTENTS (CONTINUED)
SECTION III PAGE
HOW TO…SERVICE AND REPAIR GUIDES…………………………………………………………………. 1
Boot/Collar .....................................................................................................………………. 2
Alternator Belt...............................................................................................………………… 3
Alternator .....................................................................................................………………… 5
Drive Belt............................................................................................................……………. 6
Monocolumn..................................................................................................……………….. 7
Cross-Over Pulley.......................................................................................…………………. 9
Display Console..............................................................................................………………. 10
Foot Pad........................................................................................................……………….. 12
Housing.........................................................................................................………………… 13
Molded Handle Assembly.................................................................................……………… 14
Power Board..................................................................................................……………….. 15
Power Module................................................................................................……………….. 16
Main Pulley............................................................................................................…………. 18
Spring - Lower................................................................................................……………….. 20
Spring - Upper................................................................................................……………….. 21
Handlebar/Lifepulse Sensor Assembly................................................................…………… 22
Telemetry Receiver………………………………………………………………………………… 23
Digital Heart Rate Sensors.(9500HR Only).................................................…………………. 24
Digital Heart Rate PC Board………………………………………………………………………. 26
SECTION IV PAGE
PARTS IDENTIFICATION AND WIRING BLOCK DIAGRAMS
LS9100 GK24-00021-0100 ( SN# 216142 – UP)………………………………………. 2
LS9500HR GK24-00022-0100 ( SN# 146749 – 148124)…………………………………. 5
LS9500HR GK24-00023-0100 ( SN# 148125 – UP)………………………………………. 8
LS9100 GK24-00025-0100 ( SN# 218304 – UP)………………………………………. 11
LS9500HR GK24-00027-0100 ( SN# 148125 – UP)………………………………………. 14
Wiring Block Diagram (9500HR)………………………………………………………………….. 17
Wiring Block Diagram (9500HR)………………………………………………………………….. 18
Wiring Block Diagram (9100)……………………………………………………………………… 19
SECTION V PAGE
MISCELLANEOUS INFORMATION 1
Model and Serial Numbers Locations .............................................................................…2
Preventive Maintenance …………………………………………………………………………. 3
Communicating By Telefacsmile (Instructions) .....................................…………………….. 4
Warranty/Sales Order Claim Form………………………………………………………………. 5

TM
©1999 Brunswick Corporation. All rights reserved. Life Fitness and Lifecycle are registered trademarks of Brunswick Corporation.
Lifepulse, Zone Trainer and Heart Rate Zone Training are trademarks of Brunswick Corporation. Any use of these trademarks, without the
express written consent of Brunswick Corporation, is forbidden.
M051-00K24-A183
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1
Life Fitness 9100/9500HR Belt Drive Stairclimbers
SECTION I
TROUBLESHOOTING
GUIDES

2
Life Fitness 9100/9500HR Belt Drive Stairclimbers
TROUBLESHOOTING GUIDE
Symptom: HANDLEBAR/LIFEPULSE GRIPS LOOSE
Symptom Probable Cause Corrective Action
Handlebar grips loosening. Excessive wear or damage to
grip. Replace Lifepulse Handle Assembly.
Lifepulse sensor molding
loose. Cleaning solution used
containing acid or ammonia. Replace Lifepulse sensor kit.
For Assistance Contact
Life Fitness Customer Support Services
Teleph.: 847.451.0036 or 800.351.3737
Telefacs.: 847.288.3702 or 800.216.8893

3
Life Fitness 9100/9500HR Belt Drive Stairclimbers
TROUBLESHOOTING GUIDES
Symptom: GRINDING NOISE, SLIPPING, BOTH PEDALS ARE ON THE FLOOR
Symptom Probable Cause Corrective Action
Grinding noise during
program. Clutches Inspect the clutch bearings for wear.
Replace the worn clutch.
Pulleys Inspect for wear.
Replace worn pulley.
Alternator For noise or vibration in the bearing shaft,
relieve tension on the alternator belt. Spin
flywheel and inspect.
Replace Alternator.
Slipping Cross-over belt Inspect belt for cracked or missing teeth.
Replace damaged belt.
Clutches Inspect for slipping / Replace if necessary.
Alternator Belt Inspect belt for proper tension and wear.
Replace if necessary.
For Assistance Contact
Life Fitness Customer Support Services
Teleph.: 847.451.0036 or 800.351.3737
Telefacs.: 847.288.3702 or 800.216.8893