CYBEX 900T Service Manual
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Cybex 900T Treadmill Service Manual
Cardiovascular Systems
Cybex and the Cybex logo are registered trademarksofCybex International, Inc. Bioflex and the Bioflex logo are registered
trademarks of Cybex International, Inc. Polar is a registered trademarkofPolar.
DISCLAIMER:
Cybex International, Inc.
makesnorepresentationsorwarranties
regarding
the
contentsofthis
manual. We
reserve
the
righttorevise
this
documentatany
timeorto
make
changestothe
product
described
within
it
without
notice
or
obligationtonotify
any
person
of
such
revisionsorchanges.
© 2001, Cybex International, Inc. All rights reserved. Printed
in
United StatesofAmerica.
10 Trotter Drive Medway, MA
02053·
888-GO-CYBEX·
888-462-9239·
508-533-4300·
FAX
508-533-5183
www.eCybex.com.techhelp@cybexintl.com.techpubs@cybexintl.com • SM-16106 Rev A • June 2001
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Cybex
900T
Treadmill
Service
Manual
About
This Manual
For your convenience, all measurements and voltage requirements are listed in both English
and metric units. English values are listed first, followed by metric units in parentheses. For
example:
1"
(2.54 em).
The 900T Treadmill is a newer model that has replaced the former 685 model. This manual,
part number SM-16106, should be referred
to
for
685 service questions. An Owner's Manual
is shipped with each 900T Treadmill.
To
purchase a copyofany manual, order online at
www.eCybex.com, fax your order
to
508-533-5383 or contact Cybex Customer Service at
888-462-9239 or 508-533-4300.
To
contact Cybex with comments about this manual you may send email
to
techpubs@cybexintl.com.
FCC
Compliance
Information
! WARNING: Changesormodifications to this unit
not
expressly
approvedbythe party
responsible for compliance
could
void the user's authority to operate
the equipment.
This equipment has been tested and foundtocomply with the limits
for
a Class A digital
device, pursuant
to
Part 15ofthe FCC Rules. Operation is subjecttothe following
two
conditions:
(1)
This device may not cause hannful interference, and
(2)
this device must
accept any interference received, including interference that may cause undesired operation.
Pagei
Pageii
Cybex 900T Treadmill
Service
Manual
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Cybex 900T Treadmill Service Manual
Table of Contents
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Front Pages
About
this Manual i
FCC Compliance Information
i
TableofContents .iii
1 Safety
Important Voltage Information 1-1
Grounding Instructions 1-1
Important Safety Instructions 1-2
Caution Decals
1-4
2 Technical Specifications
Specifications 2-1
Bioflex 2-2
3 Preventive Maintenance
Regular Maintenance Activities 3-1
Cleaning Your Treadmill 3-1
Running Belt Maintenance
3-2
Other Preventive Maintenance
3-6
Service Schedule
3-7
Log Sheet
3-8
4 Troubleshooting
Diagnostic Test
Mode
4-1
Diagnostic Menu 4-1
LED Functions
4-6
Motor
Current & Voltage
4-7
Speed Sensor Adjustment
4-9
Error Codes 4-10
Flow Charts 4-13
5 Removal & Replacement
Running Belt & Deck 5-1
Drive Belt
5-4
Front Roller
5-4
Rear Roller
5-4
Drive
Motor
5-5
Drive
Motor
Cleaning
5-8
Motor
Brushes 5-12
Elevation
Motor
5-14
Limit Switch Assembly 5-17
PWM Module 5-18
Display Board
5-20
EPROM 5-21
Contact Heart Rate Board 5-22
CSAFE Board 5-24
Display Cable 5-25
Display Overlays 5-26
Handrail Assembly 5-28
6 Diagrams
Parts List 6-1
Exploded View
6-3
900T Schematic
6-4
7 Customer Service
Contacting Service 7-1
Serial
Number
7-1
Retum Material Authorization (RMA)
..
7-1
Damaged Parts 7-2
Page
iii
Cybex 900T Treadmill Service
Manual
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Cybex
900T
Treadmill
Service
Manual
IMPORTANT: Read all instructions
and
warnings before using the treadmill.
Important
Voltage
Infonnation
Page
1-1
Front Pages
About this Manual i
FCC Compliance Infoonation
..
i
Table
of
Contents
iii
1
Safety
~
Voltage Information 1-1
Grounding Instructions
.....
1-1
Important SafetyInstructions
1-2
Caution Decals . . . . . . . ...1-4
2
Technical
Specificatiolls
~
2-1
Bioflex
2-2
3 Preventive
Maintenance
Regular
MarnenMCe
Activities
3-1
Cleaning YourTreadmill. .
..
3-1
Running Belt Maintenance . 3-2
Other Preventive
Maintenance
~
Service Schedule 3-7
Log
Sheet
3-8
4
TroubIeshooUlg
Diagnostic Test
Mode
4-1
Diagnostic
Menu
4-1
LED Functions
4-6
Motor
Current & Voltage
4-7
Speed
Sensor
Adjustment..4-9
Error
Codes
4-10
Flow Charts
4-13
5
Removal
& RepIac:ement
Running Belt & Deck 5-1
Drive
Belt 5-4
Front Roller 5-4
Rear
Roller 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning
5-8
Motor
Brushes. . . . . . . ...5-12
Elevation
Motor
5-14
Umit Switch Assembly 5-17
PWM
Module
5-18
Display Board
5-20
EPROM
5-21
Contact Heart
Rate
Board .
5-22
CSAFE
Board
5-24
Display Cable
5-25
Display Overlays
5-26
Handrail Assembly
5-28
6
Diagrams
Parts
Ust
6-1
Exploded
VIeW
6-3
900T Schematic 6-4
7 Customer Service
Contacting Service
7-1
Serial Number
7-1
Return Material Autt1orization
(RMA)
7-1
Damaged
Parts.
. . . . . . ...7-2
This treadmillisfor use on a
nominal 115
VAG
±15%, 60
/ DANGER:
Improper
connectionofthe
equipment-grounding
conductor
can
result
in
a
riskofelectric
shock.
Check
withaqualified
electrician
or
service
providerifyou
are
in
doubt
as
to
whether
the
treadmillisproperly
grounded.
Seekaqualified
electriciantoperform
any
modifications
to
the
cord
or
plug.
Cybexisnot
responsible
for
injuries
or
damages
as
a
resultofcord
or
plug
modification.
208/220V
NEMA 6-15
Euro Plug
GEE
7/7
Grounding
Instructions
1-
Safety
Before you assemble your 900T, checktomake sure that the treadmill has the
correct voltage requirements
for
your area, and that you have the correct
model. The power requirements
for
this treadmill are 220
VAG
±15%, 50 Hz/60
Hz and 15 amps grounded, dedicated circuit.
/ WARNINGS:
Do
not
attempt
to
use
this
unit
withavoltage
adapter.
Do
not
attempt
to
use
this
unit
with
an
extension
cord.
This treadmill is intended
for
commercial use. This treadmill must be grounded.
If it should malfunction
or
break down, grounding provides a path of least
resistance for electric current
to
reduce the riskofelectric shock. This
product
is equipped with a cord having an equipment-grounding conductor
and a grounding plug. The plug must be plugged into an appropriate outlet
that
is properly installed and grounded in accordance with all local codes
and ordinances.
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Page
1-2
Cybex 900T Treadmill
service
Manual
Hz
and20ampsora
220
VAC
±15%,
50 Hz/60 Hz and15amps
grounded,
dedicated
circuit.
Make sure
that
the
treadmill is connectedtoan outlet having
the
same
configuration as
the
plug. Do
not
use a
ground
plug adaptertoadapt
the
power
cordtoa
non-grounded
outlet.
Important
Safety
Instructions
(Save These Instructions)
J
DANGER:
To
reduce
the
riskofelectric
shock,
always
unplug
this
treadmill
from
the
electrical
outlet
immediately
after
usingitand
before
cleaning
it.
JWARNING:
Serious
injury
could
occurifthese
precautions
are
not
observed.
To
reduce
the
riskofbums,
fires,
electric
shock,orinjury:
•
Obtain
a medical exam before beginning any exercise program.
• Keep children
away
from the treadmill. Teenagers
and
disabled
persons
must
be
supervised while using.
•
Stop
exercising if you feel faint, dizzy,orexperience pain at any
time
while exercising
and
consult
your
physician.
•
Use
the
treadmill handrails
for
support
andtomaintain balance.
.•
Use
caution when mounting and dismounting
the
treadmill.
•
Disconnect
all
power
before servicing
the
treadmill.
• Use a
dedicated
line when operating
the
treadmill.
•
Connect
the
treadmilltoa properly grounded
outlet
only.
•
Do
not
operate electrically powered treadmills in
damporwet
locations.
• Keep
the
running belt clean and
dry
at all times.
•
Stop
and
place
the
treadmill at 0 degrees incline (level)
after
each
use.
•
Do
not
leave
the
treadmill unattended when
plugged
in and running. After turning
off
the
treadmill,
don't
leave it until it
comestoa
complete
stop
and is level.Todisconnect,
turn
all controlstothe
STOPorOFF position, and
then
remove
the
plug from
the
outlet.
•
Inspect
the
treadmill
for
wornorloose
components
before each use.
Do
not
use until
wornordamaged
parts are replaced.
• Maintain and replace worn parts regularly. Refer
to
"Preventive Maintenance" Section
of
Owner's
Manual.
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Cybex 900T Treadmill service Manual
• Do not operate the treadmill if
the
cord is damaged, if
the
treadmill is not
working properly,
or
if the treadmill has been
droppedordamaged. Seek
service from a qualified technician.
• Do
not
place
the
cord near heated surfacesorsharp edges.
• Do
not
use the treadmill outdoors.
• Do
not
operate
the
treadmill aroundorwhere aerosol (spray)orwhere
oxygen products are being used.
• Read
and
understand the Owner's Manual completely before using the
treadmill.
• Read and understand emergency
stop
procedures.
• Read and understand all warnings posted on the treadmill.
• Replace any warning label if damaged, worn
or
illegible.
• Do
not
wear
looseordangling clothing while using
the
treadmill.
• Always wear proper footwear on
or
around exercise equipment.
• Keep all
body
parts, hair, towels, water bottles, and the like free and clear
of
moving parts.
• Set
up
and
operate the treadmillona solid, level surface. Do
not
operate
in recessed areas or on plush carpet.
• Provide
the
following clearances: 39 inches(1m)ateach side, 78 inches
(2m)at
the
back, and enough room
for
safe access and passage at the
front
of
the
treadmill. Be sure
your
treadmill is clearofwalls, equipment,
and
other
hard surfaces.
• Do
not
attempt
repairs, electricalormechanical. Seek trained repair
personnel when servicing. Contact
the
nearest authorized Cybex dealer
or
other
competent
repair service.
• Use
Cybex
factory parts when replacing partsonthe
treadmill.
• Do
not
modify
the
treadmill in any way.
• Do
not
use attachments unless recommended
for
the
treadmill by Cybex.
• Report any malfunctions, damageorrepairstothe
facility.
• Do
not
use the treadmill if you exceed 400 Ibs.
(181
kg). This is
the
rated
maximum
user weight.
Front
Pages
About this Manual i
FCC
Compliance Information..i
Table
of
Contents iii
1
Safety
ImportantVoltage Infoonation 1-1
Grounding
Instructions
.....
1-1
Important Safety Instructions 1-2
Caution Decals . . . . . . . ...1-4
2 Technical Specifications
Specifications . . . . . . . . .
..
2-1
Bioflex
2-2
3 Preventive Maintenance
Regular Maintenance
Activities
3-1
Cleaning
Your
Treadmill. ...3-1
Running
Belt
Maintenance . 3-2
Other
Preventive
Maintenance
3-6
Service Schedule
3-7
Log
Sheet
3-8
4 Troubleshooting
Diagnostic Test
Mode
4-1
Diagnostic
Menu
4-1
LED Functions
4-6
Motor
Current & Voltage
4-7
Speed SensorAdjustment..4-9
Error
Codes
4-10
Flow
Charts
4-13
5 Removal &
Replacement
Running Belt & Deck 5-1
Drive Belt 5-4
Front Roller 5-4
Rear Roller 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning
5-8
Motor
Brushes
5-12
Elevation
Motor
5-14
Umit Switch Assembly
5-17
PWM
Module
5-18
Display Board
5-20
EPROM 5-21
Contact Heart Rate Board .
5-22
CSAFE Board
5-24
Display Cable
5-25
Display Overlays
5-26
Handrail Assembly
5-28
6
Diagrams
Parts
Ust
6-1
Exploded
VieW
6-3
900T
Schematic
6-4
7
Customer
5ervice
Contacting Service 7-1
Serial
Number
7-1
Retum
Material Authorization
(RMA)
7-1
Damaged Parts. . . . . . . .
..
7-2
Page
1-3
Page
1-4
Cybex 900T Treadmill service Manual
Caution Decals
Caution decals indicate a potentially hazardous situation, which, if
not
avoided, may result
in
minorormoderate injury. The caution decals used on the 900T are shown below.Toreplace
any worn
or
damaged labelsdooneofthe following: Visit eCybex.comtoshop for parts
online, or download the parts order form and fax your order
to
508-533-5183.Tospeak with a
customer service representative, in most areas call 888-GO-CYBEX
or
888-462-9239.
Otherwise call 508-533-4300.
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Cybex 900T Treadmill Service Manual
CAUTION
Page 1-5
Front
Pages
About this Manual i
FCC
Compliance Information
..
i
Table
of
Contents
iii
2
Tecfv1icaI
Spec:ifications
Specifications . . . . . . . . .
..
2-1
Bioflex
2-2
1Safety
I~
Voltage
Information
1-1
Grounding Instructions
.....
1-1
Important Safety Instructions 1-2
Caution Decals . . . . . . . .
..
1-4
3 Preventive Maintenalce
RegUar
Marnencrlc:e
Activities
3-1
Cleaning
Your
Treadmill. ...3-1
Running
Belt Maintenance . 3-2
Other Preventive
Maintenance 3-6
Service Schedule 3-7
Log Sheet 3-8
4
TI"CIWIeehootin
Diagnostic
Test
Mode 4-1
Diagnostic
Menu
4-1
LED
FlI1CIions
4-6
Motor
CUI'1'ent
& Voltage 4-7
Speed
Sensor
Adjustment..4-9
Error
Codes 4-10
Flow Charts 4-13
5 Removal & Replacement
Running
Belt &
Deck
5-1
Drive
Belt
. . . . . . . . . . . . . . . 5-4
Front
Roller 5-4
Rear
Roller
5-4
Drive
Motor 5-5
Drive
MotorCleaning 5-8
Motor Brushes. . . . . . . .
..
5-12
Elevation Motor 5-14
Limit Switch
Assembly
5-17
PWM Module 5-18
Display Board 5-20
EPROM
5-21
Contact Heart
Rate
Board . 5-22
CSAFE
Board 5-24
Display Cable 5-25
Display 0vet1ays 5-26
Handrail Assembly 5-28
6 Diagr.-ns
Parts Ust. . . . . . . . . . . . . ...6-1
Exploded View 6-3
900T Schematic 6-4
7
Customer
Service
Contacting Service
7-1
Serial Number
7-1
Return
Material
Authorization
(RMA)
7-1
Damaged Parts 7-2
DO
NOT
USE
EXCESSIVE
FORCE
TO
TIGHTEN
BELT
CAUTION
DO NOT OPEN
REFERTOQUALIFIED
SERVICE
PERSONNEl.
SEE
INSTRUCTIONS
MANUAL.
HIGH VOLTAGE UNDER COVER
NO
USER SERVICEABLE PARTS INSIDE
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>.
Page
1-5
Cybex
900T Treadmill
service
Manual
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Cybex
900T
Treadmill
Service
Manual
I
......
E-------
82"
(208
cm)------
...
I
2 - Technical Specifications
2 Technical Specifications
Specifications . . . . . . . . . . . 2-1
Bioflex 2-2
Page
2-1
Front
Pages
About
this Manual i
FCC Compliance Information
..
i
Table
of
Contents iii
1
Safety
Important Voltage Information
1-1
Grounding Instructions
.....
1-1
Important Safety Instructions 1-2
Caution OecaIs . . . . . . . .
..
1-4
3 Preventive
Maintenance
RegUar
Maintenance
Activities
3-1
Cleaning Your Treadmill
....
3-1
Running Belt Maintenance . 3-2
Other
Preventive
Maintenance
3~
Se!vice Schedule 3-7
LogShee1 3-8
4 Troubleshooting
Diagnostic Test
Mode
4-1
Diagnostic Menu
4-1
LED Functions
4~
Motor
Current & Voltage 4-7
Speed
Sensor
Adjustment..4-9
Error
Codes
4-10
Row
Charts 4-13
5
Removal&Replacement
Running Belt &
Deck
5-1
Drive Belt 5-4
Front Roller 5-4
Rear Roller 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes 5-12
Elevation
Motor
5-14
Umit Switch Assembly 5-17
PWM
Module
5-18
Display Board 5-20
EPROM 5-21
Contact Heart
Rate
Board . 5-22
CSAFE Board 5-24
Display Cable 5-25
Display Over1ays 5-26
Handrail Assembly 5-28
6
Diagrams
Parts Ust
6-1
Exploded
VieW
6-3
900T
Schematic 6-4
7
Customer
Service
Contacting Service
7-1
Serial Number 7-1
Retum
Material Authorization
(RMA)
7-1
Damaged
Parts .... . . . 7-2
82" (208 cm)
33" (84 cm)
20" x 60"
(51
cm
x 152 cm)
350 Ibs. (159 kg)
0.5
to
12.4 mph (0.8to20 kph)in0.1
mphor0.1
kph increments
-5
to
+20%
grade
Minimum
of
9 per program
Yes
Cardiovascular, Weight Loss, Speed Interval,
Hill Interval, Rolling Hills, Demonstration,
Up
to10Custom
Contact Heart Rate, Polar
CSAFE
10 gauge steel
Wax impregnated
wood
220 VAC
±10%,
50 Hz/60 Hz and 15 amps
grounded, dedicated circuit
3 hp, DC. continuous duty
Press
the
stop
button
English, Spanish, German, French
400 Ibs. (180 kg)
Labor 1 year; parts 2 years except as follows:
structural frame, 10 years; deck and belt 1
year.
Length:
Width:
Running Area:
Weight
of
Product:
Speed Range:
Incline Range:
Levels
of
Difficulty:
Manual Mode:
Programs:
Standard Features:
Connectivity:
Chassis Construction:
Deck Material:
Power Requirement:
Motor:
Emergency Stop:
Languages:
Maximum User Weight:
Warranty:
Specifications
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Page
2-2
Cybex 900T Treadmill Service Manual
Bioflex
The Bioflex system used on the 900T is optimized
for
lateral stability. This is accomplished
through
the use of a 10 gauge steel frame and critically
damped
rear wheels. The heavy
gaugeofthe steel frame provides a rigid structuretotransfer
the
landing
shocktothe
damped
wheels so that they can effectively absorb the impact.
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Cybex 900T Treadmill Service Manual
3 - Preventive Maintenance
Regular Maintenance
Activities
Preventive maintenance activities
must
be performedtomaintain normal
operation
of
your treadmill. Keeping a log sheetofall maintenance actions will
assist you
in
staying current with all preventive maintenance activities. See Log
Sheet in this chapter.
Cleaning Your Treadmill
When cleaning your treadmill spray a mild cleaning agent, such as a water and
dishsoap solution, on a clean cloth first,
and
then wipe
the
treadmill with the
damp
cloth.
NOTE: Do
not
spray cleaning solution directly on the treadmill. Direct
spraying
could
cause damage to the electronics
and
may void the
warranty.
! WARNING: To
prevent
electrical
shock,
be
sure
that
powerisshut
off
and
the
treadmillisunplugged
from
the
electrical
outlet
before
perfonning
any
cleaningormaintenance
procedures.
After
Each
Use
-
Wipeupany liquid spills immediately. After each workout,
use a cloth
to
wipeupany remaining perspiration from
the
handrails and
painted surfaces.
Be careful not
to
spillorget excessive moisture between
the
edgeofthe
display panel and the console, as this
might
create an electrical hazard
or
cause failureofthe electronics.
As
Needed
- Vacuum any dustordirt
that
might
accumulate underoraround
the
900T. Motors are especially susceptibletodust
and dirt, and restricted
airflow can prevent adequate cooling
that
could shorten
motor
life. Cleaning
this area should be
done
as often as indicated in
the
Service Schedule.
! WARNING:
Keep
wet
items
away
from
inside
parts
of
the
treadmill.
Electrical
shock
could
occur
evenifthe
treadmill
is
unplugged.
Avoid
touching
the
wire
connections
at
the
endofthe
blue
capacitor
mounted
on
topofthe
aluminum
box
nexttothe
drive
belt.
Front
Pages
About
this Manual i
FCC
Compliance
Information
..
i
Table
of
Contents iii
1
Safety
ImportantVoltage Infoonation
1-1
Grounding Instructions
.....
1-1
Important Safety Instructions 1-2
Caution
Decals... ....
...
1-4
2 Tec:hnicaI Spec:ificatiol18
Specifications . . . . . . . . ...2-1
Bioflex
2-2
3
Preventive
Maintenance
FlegU<r
Mairtenance
Activities
3-1
Cleaning
Your
Treadmill. ...3-1
Running
Belt
Maintenance . 3-2
Other Preventive
Maintenance
3-6
Service Schedule
3-7
Log
Sheet
3-8
4
Troubleshooting
Diagnostic Test Mode 4-1
Diagnostic
Menu
4-1
LED Functions
4-6
Motor
CuTent & Voltage 4-7
Speed
Sensor Adjustment
..
4-9
Error
Codes
.4-10
Flow Charts 4-13
5 Removal &
Replacement
Running Belt & Deck 5-1
Drive
Belt 5-4
Front Roller 5-4
Rear Roller 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes. . . . . . . ...5-12
Elevation
Motor
5-14
Umit
Switch
Assembly
5-17
PWM
Module
5-18
Display
Board 5-20
EPROM 5-21
Contact Heart Rate Board . 5-22
CSAFE Board 5-24
Display
Cable
5-25
Display Overlays
5-26
Handrail
Assembly
5-28
6
Diagrams
Parts
Ust
6-1
Exploded
VieW
6-3
900T Schematic
6-4
7
Customer
Service
Contacting Service 7-1
Serial
Number
7-1
Return Material
Authorization
(RMA)
7-1
Damaged
Parts 7-2
Page
3-1
Page
3-2
Cybex
900T Treadmill
Service
Manual
To
clean the
motor
components, you
must
remove the
two
Phillips head screws that hold the
motor
cover in place. Lift the cover, and
put
it and the screws aside. Use a vacuum
attachment
or
hand vacuumtoclean
the
exposed elevation assembly, drive motor, lower
electronics and the surrounding areas.
Also use a
dry
cloth
for
the areas that you can't reach with the vacuum cleaner. If the machine
has not been used
for
some timeoris excessively dirty, use a
dry
clothtowipe all exposed
areas. Replace the cover and screws when finished.
With
the
helpofanother person, lift
the
rearofthe treadmill and roll it back from its present
position
soasto
vacuum
the
floor area underneath the unit. Wipe clean the undersideofthe
900T
to
prevent dirt and
dust
build-up. When finished, return the treadmilltoits normal
position.
Contact
Heart
Rate
Grips
- Contaminants, such as hand lotions, oils or body powder, may
come
off
on the contact heart rate grips. These can reduce sensitivity and interfere with the
heart rate signal. It is recommended that the user have clean hands when using the contact
heart rate. Clean the grips using a cloth dampened with a cleaning solution containing alcohol.
The grips are the only part
of
the treadmill you should use a cleaning solution containing alcohol.
In
addition, the nickel plating on the 900T may become tarnished and blackened with time.
This may reduce sensitivity and interfere with the heart rate signal. Use
an
emery cloth
to
remove
the
tarnish from
the
exposed nickel plating on
the
heart rate grips.
Running Belt
Maintenance
Belt
and
Deck
- Clean
the
belt and the
deck
surfacestominimize the effectoffriction
between
the
wood
deck
and the running belt. Clean the undersideofthe running belt and the
topofthe running
deck
surface by wiping them with a clean dry towel. This should be done
often
to
prevent premature wearofthe deck, running belt, and the drive
motor
system. See
the
Service Schedule in this chapter
to
determine the minimum recommended cleaning.
The running belt may become loose and slip on the drive roller with each foot plant. The 900T
is equipped with visual indicators
of
belt tension. These are located at the rearofthe treadmill
where the
two
3/4·
bolts protrude from the plastic end caps. See Figure 1. These are
designed
to
indicate if
the
running belt is at the proper tensiontoinsure safe operationofthe
unit. If
the
belt has become loose,
the
silver colored washer located under the bolt will move
out slightly from
the
protruding
tab
molded in the end cap. See the Service Schedule in this
chapter
to
determine the minimum recommended checkingofthe belt tension.
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Cybex 900T Treadmill Service
Manual
Top View
.Q,ooI!b-""---
Protruding Tabs
Bolts
Figure 1
Re-tensioning
and
Re-centering
the
Belt
- Follow
the
procedure below.
Tools
Required
•
3/4
10
wrench
1.
Re-tension
the
belt.
A.
Use a 3/4" wrenchtoturn each
bolt
clockwise until the silver washers
are flush with the protruding
the
tab
on the end caps. See Figure 1.
B. Turn
the
power on and press
the
Manual
key. Press the
Up
Arrow
to
bring the speedupto
3.5-4
mph
(5.6-6.4 kph).
c.
Allow
the
treadmilltorun for a minuteortwo. Observe the bolts and
silver washers. If they begin
to
protrudeorretract turn the treadmill off
and adjust the bolts. Follow the next step
to
be sure the beltiscentered.
NOTE:
Be
careful
nottoover
tighten the belt.
Over
tightening the
belt
can
create excessive tension
on
the front
and
rear
rollers.
NOTE:
While
centering
the
belt
choose
one
bolttoadjust. Do
not
adjust
both
bolts.
2.
Re-center
the
belt.
A. With the treadmill running at 5
mph(8kph) observe the running belt. If
the
belt tracks off centertothe
right or left the
deck
will become
exposed. Use a
3/4" wrench
to
tighten the rear roller bolts. on the side
of
the treadmill toward which the beltismoving. For example: If the belt
moves
to
the right and the
deck
becomes exposed on the left, use a
wrench
to
tighten the bolt on the right sideofthe
frame, tighten about
1/2
of
a turn (clockwise) and wait30seconds. If
the
belt does not move
backtothe centerofthe treadmill, make another adjustmenttothe
Front
Pages
About
this Manual i
FCC Compliance Information
..
i
Table
of
Contents iii
1
Safety
Important Voltage Information 1-1
Grounding Instructions
.....
1-1
Important
Safety Instructions 1-2
Caution Decals . . . . . . . .
..
1-4
2
Technical
Specifications
Specifications 2-1
Bioflex
2-2
3
Preventive
Maintenance
RegtW
Maintenance
Activities 3-1
Cleaning Your
Treadmill. ...3-1
Running Belt Maintenance .
3-2
Other
Preventive
Maintenance
3~
Service Schedule
3-7
Log Sheet
3-8
4 Troubleshooting
Diagnostic
Test
Mode 4-1
Diagnostic Menu 4-1
LED Functions
4~
Motor
Current & Voltage'"4-7
Speed Sensor Adjustment..4-9
Error Cocles
4-10
Row Charts
4-13
5 Removal &
Replacement
Running Belt & Deck 5-1
Drive
Belt . . . . . . . . . . . . . . .
5-4
Front Roller
5-4
Rear Roller
5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes 5-12
Elevation
Motor
5-14
Limit
Switch
Assembly
5-17
PWM
Module
5-18
Display
Board
5-20
EPROM 5-21
Contact Heart
Rate
Board .
5-22
CSAFE Board
5-24
Display Cable
5-25
Display Overlays 5-26
Handrail Assembly
5-28
6
Diagrams
Parts List 6-1
Exploded
VieW
6-3
900T Schematic 6-4
7
Customer
Service
Contacting Service 7-1
Serial
Number
7-1
Return Material Authorization
(RMA)
7-1
Damaged Parts 7-2
Page 3-3
Page
3-4
Cybex 900T Treadmill Service
Manual
same
bolt.
Once
the
running belt has been adjusted
closertothe
centerofthe
treadmill
use
about
1/4ofa
turn
until the belt has been stabilized.
B. After
the
belt has been centered,
check
the
belt tension again.
Make
sure
the
running
belt tension is
tight
enough so that
the
belt does
not
sliporhesitate when stepped on.
Walk on
the
treadmill at 3.5-4 mph (5.6-6.4 kph) and every 4thto5th
step
throw
your
weight into
your
steptofeel if the belt is slipping. If
the
belt
does
slip, use a wrench
to
equally tighten
both
rear roller adjustment bolts
1/2ofa
turn
(clockwise). Adjust
the
belt
until
no
further slipping is felt. If the running belt continuestoslip
the
drive belt could
be
loose.
NOTE: The springs may eventually compress slightly.Ifthey compress the silver washers
may no
longerbeflush with the protruding tabonthe
end
caps when the
belt
is
properly tensioned.
The
washers willbepositioned deeper into the
end
cap
and
not
be
as visible.
Checking
the
Belt
and
Deck
Surfaces
- The running belt
and
deck
should
be checked
periodically
for
any excessive wear.Inan
efforttomake sure
that
the
running belt operates
properly, visually
inspect
the
belt on a weekly basistomake sure
that
there are no tears
or
fraying in
the
belt material.
To
inspect
the
edgesofthe
belt, it is necessarytoremove
the
motor
cover
and plastic side
rails. Follow these steps:
Tools
Required
• Phillips head
screwdriver
• Flat head
screwdriver
•
3/16·
Allen
wrench
• Dry towel
1.
Turn
the
power
off.
A. Turn
the
main
power
switch on the
front
paneltothe
off
(0)
position.
B. Unplug
the
treadmill from
the
power
outlet.
2.
Remove
the
motor
cover
and
side
rails.
A. Remove
the
two
Phillips head screws
that
fasten
the
motor
covertothe
frame. Lift
the
cover
and set it aside. This will allow youtoremove
the
side
rails. See Figure 2.
B. Using a
3/16"
Allen wrench, remove
the
two
button head
screwsonthe
sidesofeach
side
rail. See Figure 2.
C. Using a flat
head
screwdriver, remove
the
screw on
the
topofeach side rail. See
Figure 2.
D. Grasp
the
top
edgeofeach side rail and pull up and
away
from
the
deck. This will
enable
youtosee
the
deck
and edgesofthe
belt. It is
not
necessarytoremove
the
side rails
completely
off
the
frame.
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4.
Clean
under
the
belt.
Front
Pages
About
this Manual i
FCC Compliance Information
..
i
Table
of
Contents iii
2 Technical Specifications
Specifications . .
.. ..
. . ...2-1
Bioflex 2-2
Page 3-5
1
Safety
ImportantVoltage Information 1-1
Grounding
Instructions
.....
1-1
Important Safety Instructions 1-2
Caution Decals
..
........
1-4
3
Preventive
Maintenance
RegUar
Maintenance
Activities
3-1
Cleaning Your
Treadmill. ...3-1
Running Belt Maintenance . 3-2
Other
Preventive
Maintenance 3~
Service Schedule 3-7
LogSheErt
3-8
4
Troubleshooting
Diagnostic Test Mode 4-1
Diagnostic Menu 4-1
LED Functions
4~
Motor
Current & Voltage
4-7
Speed Sensor Adjustment..4-9
Error Codes
4-10
Flow Charts
4-13
5 Removal & Replacement
Running Belt &
Deck
5-1
Drive Belt 5-4
Front Roller
5-4
Rear Roller 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes 5-12
Elevation
Motor
5-14
Umit
Switch Assembly 5-17
PWM
Module
5-18
Display Board
5-20
EPROM 5-21
Contact Heart Rate Board . 5-22
CSAFE Board 5-24
Display Cable 5-25
Display Overlays
5-26
Handrail Assembly 5-28
6
Diagrams
Parts Ust 6-1
Exploded
VieW
........•.•
6-3
900T Schematic 6-4
7
Customer
Service
Contacting
Service
7-1
Serial Number 7-1
Retum Material Authorization
(RMA)
7-1
Damaged Parts...... . 7-2
Screws
~=======---3
Screws Each
Side
,
I
I
~'~,'I~~~
Side
Rails
Cybex
900T
Treadmill Service Manual
B. Run
your
hand under the belt on the
topofthe
deck
surface. If you feel
excessive ridges
or
cracks,orif the
deck
feels grooved yet highly
polished, the
deck
should be flipped so that an unused surface faces
the
top.
If the
deck
is worn on both sides it should be replaced.Intime,
a
worn
belt and
deck
can cause high current draw and ultimately,
motor
failure. For instructions on replacing the belt and deck, see Running
Belt
and
Deck in the Removal andReplacement chapterofthe Service Manual.
C. Using a
3/16"
Allen wrench, attach the
two
button head screws on the
sides
of
each side rail. See Figure 2.
A. After completing the inspection and cleaning
of
the
deck
surface, snap
the
side rails back down into their original position.
B. Using a flat head screwdriver, attach the screw on the
topofeach side
rail. See Figure 2.
A. Look at the edges
of
the belt while you roll it by hand. If the belt has
any rips
or
looks excessively worn the belt needstobe replaced.
End
Caps
A.
To
minimize
the
effect of friction between the
deck
and the running belt,
Cybex
recommends cleaning the undersideofthe running belt and the
topofthe
running deck surfacebywiping them with a clean,
dry
towel.
This cleaning should be done each time you check the belt and
deck
conditiontoprevent premature wearofthe deck, running belt and the
drive
motor
system. See the Service Schedule in this chapter.
5.
Replace
the
side
rails
and
motor
cover.
Figure 2
3.
Check
the
belt
and
deck
condition.
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Page
3-6
Cybex 900T Treadmill Service
Manual
D. Lower the
motor
coverinplace and tighten the
two
Phillips screws. See Figure
2.
Other
Preventive
Maintenance
Cybex recommends that
the
following maintenance activities be completedbya qualified
service technician. These activities should be perfonned at the recommended intervals listed
in the
Service Schedule (located in this chapter):
Measure the
motor
brushes and replace worn motor brushes
Rotate, flip and replace the running deck.
Replace the running belt
Check the current
draw
Measure motor voltage at maximum speed, with no load
Refer
to
the 900T Service Manual
for
detailed procedures when completing the tasks listed
above. If you need
to
order a manual, call Cybex at 888-GO-CYBEX, 888-462-9239 or
in
some areas call 508-533-5183.
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Current
draw
with a user
of
160 Ibs. is 11.3. Maximum current drawis 19.3.
Cybex
900T
Treadmill
Service
Manual
Front
Pages
About this
MMuaI
i
FCC
CompIia1ce
Information
..
i
Table
of Contents
iii
Page 3-7
1
Safety
Important
Voltage
Information
1-1
Gn:x.rong
Instructions
.....
1-1
Important Safety Instructions 1-2
Caution Decals . . . . . . . .
..
1-4
2 Technic:aI Spec;ificatiolI8
Specifications . . . . . . . . . . .
2-1
Bioflex.
. . . . . . . . . . . .
.....
2-2
3 Preventive Mai1tenan:e
RegLW Maintellalce
Ac1ivilies
3-1
Cleaning
Your
Treadmill. .
..
3-1
Fbring
Belt Maintelwlce . 3-2
Other
Preventive
~
~
Service
SchecUe 3-7
Log Sheet 3-8
4 TroubIeehooting
Diagnostic Test Mode
4-1
Diagnostic Menu 4-1
LED
Functions 4-6
Motor
Current & Voltage 4-7
Speed
Sensor
Adjustment
..
4-9
Error
Codes 4-10
Flow Charts 4-13
5 Removal & Replacement
Running Belt &
Deck
5-1
Drive Belt 5-4
Front
Roller
........•.....
5-4
Rear RoIer 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes 5-12
EJevation
Motor 5-14
Umit Switch Assembly 5-17
PWM Module 5-18
Display Board 5-20
EPR~
5-21
Contact
Heart Rate Board . 5-22
CSAFE
Board 5-24
Display Cable 5-25
Display 0vet1ays 5-26
Handrail Assembly 5-28
6Di11grams
Parts
List.
. . . . . . . . . . . . .
..
6-1
Exploded
VIeW
6-3
900T
Schematic
6-4
7Cl.I8tomer Service
Contacting
Service
7-1
Serial Number
7-1
Return Material Authorization
(RMA)
7-1
Damaged Parts . . . . . . . .
..
7-2
x
x
x
x x x x
x x x
x
x x x x x x x
x
x x x
x x x x
x x x x x x
x x x
x
x x x x
x
x x x x x x
x x x
x x
x
xx
x x x x x
x
x x x x
x x x
xx
x x x x x
x x
x x
x x
Service Schedule
500 (805)
5000 (8046)
1ססoo
(16093)
10500 (16898)
15000 (24140)
20000 (32187)
20500 (32992)
25000 (40234)
3ססoo
(48280)
30500 (49085)
35000 (56327)
40000 (64374)
40500 (67178)
45000 (72420)
5ססoo
(80467)
50500 (81272)
55000 (88514)
6ססoo
(96560)
60500 (97365)
65000 (104607)
7ססoo
(112654)
70500 (113459)
75000 (120701)
80000 (128748)
80500 (129552)
85000 (136794)
90000 (144841)
Running belt should
not
noticeably slip when loaded at 3.0 mph (4.8 kph).Ifso, tighten each rear
bolt 1/4
tum
clockwise and retest.
Minimum brush length,
as
measured from topof'box' shapetothe bottom: 0.438 (7/16") (1.1 em)
To
detennine yourtreadmill's total mileage see Diagnostic Tests in the Troubleshooting chapterof0
the Service Manual.
Motor voltage at 12.4 mph (20 kph) no-load should not
go
below 163V(the 900T can display 0
this in diagnostics.)
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3-8
Log
Sheet
Serial Number
DateofData
Collection
Total MIesIKiIomeIers
TotalHotn
Motor
Cwrent
@
3
mph
(4.8 koh)
Motor
Voltage @
12.4
moh'2O
koh)
-
without
load
•
with
160 Ibs. load
(72 kg)
Notes:
Total Miles/Kilometers
Total Hours
Motor Current
@
3
moh
(4.8
kohl
MotorVoltage @
12.4
moh
(20
kohl
-
without
load
-
with
160 Ibs. load
(72 kg)
Notes:
Total
Miles
Total Hours
Motor
Current
@
3
moh
(4.8
koh)
Motor Voltage @
12.4
moh
'20
koh)
-
without
load
-with
160 Ibs. load
(72 kg)
Notes:
Total Miles/Kilometers
Total Hours
Motor Current
@
3 mDh '4.8
kohl
MotorVoltage @
12.4 moh (20
kohl
-
without
load
-
with
160
Ibs.load
(72 kg)
Notes:
Cybex
900T Treadmill Service
Manual
DateofInstallation
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Cybex
900T Treadmill
Service
Manual
4 - Troubleshooting
Diagnostic
Test
Mode
To
enter
Test
Mode
turn
the power switch on
(I).
Press 999 on the keypad and
then press Enter. The first diagnostic test title scrolls across
the
display from
the right
to
the left.Use the + and - buttonstoselect a specific test. When the
title is displayed, press
Entertoactivate the test. After the test has been
completed, press
the+or
- buttonstogo into the next test desired.
NOTE:
The diagnostic tests can onlybeaccessed when the treadmill is in
the
dormant
mode.
To
exit Test Mode, press Clear. Or press +or- until you see
the
title: 16. EXIT
DIAGNOSTICS. Then press
Entertoexit the diagnostic mode.
Diagnostic
Menu
1. PROGRAM REVISION LEVEL
2. DYNAMIC TESTS
3. LED TEST
4. TONE GENERATOR TEST
5.
OVERLAY TEST
6.
DMD CABLE CHECK
7.
CSAFE PORT CHECK
8.
CLEAR ERROR MESSAGE
9. ERROR LOG
10. CLEAR ERROR LOG
11. TOTAL MILEAGE
12. TOTAL HOURS
13. NUMBER OF STARTS
14. 'OUT OF ORDER' DISPLAY MODE
15. DISPLAY BASE
10 AND VERSION NUMBER
16. EXIT DIAGNOSTICS
1. PROGRAM REVISION LEVEL
This
test
displays
the
configuration for the main chip in the control panel. The
test
displays the treadmill model number
for
which the chip is intended,
followed by the revision level
of
the main program. Press
Enter
which returns
the display
to
the
test
menu choices.
For example: 900T rx.xx
Front
Pages
About
this Manual i
FCC Compliance Information
..
i
TableofContents iii
1
Safety
ImportantVoltage Information
1-1
Grounding Instructions
.....
1-1
Important Safety Instructions 1-2
Caution Decals . . . . . . . .
..
1-4
2 Technical Specifications
Specifications . . . . . . . . ...2-1
Bioflex
2-2
3 Preventive
Maintenance
Reguar Maintenance
Activities
3-1
Cleaning Your Treadmill
....
3-1
Running
Belt
Maintenance . 3-2
Other Preventive
Maintenance
3-6
Service
Schedule 3-7
Log
Sheet
3-8
4 TroubIeshooU1g
Diagnostic
Test
Mode 4-1
Diagnostic Menu 4-1
LED Functions 4-6
Motor
Current & Voltage
4-7
Speed
Sensor
Adjustment..4-9
Error
Codes
4-10
Flow
Charts
4-13
5 Removal &
Replacement
Running
Belt
&
Deck
5-1
Drive
Belt . . . . . . . . . . . . . . .
5-4
Front Roller
5-4
Rear Roller
5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes
5-12
Bevation
Motor
5-14
Umit
Switch
Assembly
5-17
PWM
Module
5-18
Display
Board
5-20
EPROM 5-21
Contact Heart Rate
Board
. 5-22
CSAFE
Board
5-24
Display Cable
5-25
Display Overlays
5-26
Handrail Assembly
5-28
6
Diagrams
Parts Us!. . . . . . . . . . . . . . . . 6-1
Exploded View
6-3
900T
Schematic 6-4
7
Customer
Service
Contacting Service 7-1
Serial
Number
7-1
Retum Material Authorization
(RMA) 7-1
Damaged Parts . . . . . . . .
..
7-2
Page
4-1
Page
4-2
Cybex
900T Treadmill Service
Manual
Press
Enter
which returns the displaytothe test menu choices.
2. DYNAMIC TESTS
You
will see
the
words "685 BASE MONITOR MODE".
Press
Entertoselect the test. Use
the
Scan
buttontoadvance through
the
test displays
included in test 2.
To
start the treadmill in the Dynamic Test Mode, press the
Manual
Start
button.
ERROR REGISTER - lists the current ERROR CODE.
LINE FREQUENCY - displays electrical frequency
of
power
source in Hz.
MOTOR CURRENT - displays
the
average current
draw
in Amps over the last 15
seconds. Cybex recommends that you check the current
draw
periodically. The
recommended intervals are shown in the Service Schedule in
the
Preventive Maintenance
chapter. See instructions under
Motor
Current
and
Voltage in this chapter.
MOTOR VOLTAGE - displays DC voltage measured across
the
drive motor. The MOTOR
VOLTAGE
test
is usedtoindicate if the
motor's
permanent magnets have weakened.
Cybex recommends that you
check
the
motor
voltage periodically. The recommended
intervals are shown
in
the Service Schedule in the Preventive Maintenance chapter. See
instructions under
Motor
Current
and
Voltage in this chapter.
ACTUAL SPEED - displays actual speed in kilometers per hour (minus the decimal
point):
for
example:
1 mph =
161
5 mph =805
10 mph
=1610
12.4 mph
=1996
ENCODER
COUNT
- confirms that a signal is being detected by
the
speed sensor.
ELEV RPM - displays measured revolutions per minuteofthe
elevation motor.
ACTUAL ELEV - displays incline in % grade.
To
exit test 2, press Entertoreturntothe Diagnostic Menu; press Cleartoreturn
to
Dormant Mode.
3. LED TEST
This test illuminates each
LEDonthe
control panel independently. This test begins
by
sequentially illuminating each segmentofthe Time, Distance, Incline and Speed
windows
then followsbyilluminating the central control panel LEDs in the green frequency
for
the first
vertical column
of
LEDs on the far rightofthe display. The test moves from righttoleft, one
column at a time.
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Cybex
900T
Treadmill
Service
Manual
After the testofthe green LEOs is completed, the
test
repeats
for
the red
LEOs,
this
time
only illuminating the LEOs from the 0-15 range.
Pressing and holding the
+ button will illuminate all
of
the
green LEOs at one
time. Pressing and holding
the-button
will illuminate allofthe red
LEOs
from
0-15.
With test 3, you can easily locate any LED that may
notbeworking properly.
The display can be disassembled and the LED can be replaced with a
new one.
4. TONE GENERATOR
CHECK
This test checks the tone generator on the control panel.
When you press
Entertobegin this test, the display scrolls
the
message, "YOU
SHOULD HEAR 10 BEEPS", and the display will emit 10 audible beeps. A
defective tone generator will
not
produce any tones.
With test 4 you can determine if the tone generator needs
tobereplaced.
Press
+
or-to
incrementtoanother test.
5. OVERLAY TEST
This test checks that each button on the overlay is sending a signal
to
the
control panel.
When you press
Entertobegin this test, the control panel will display the
message:
"PRESS STOP TO END"
(it will scroll across the
top
lineofthe Dot Matrix
panel) and "KEY
HIT'
(stays illuminated on the middle line throughout the
test
until
Stop
is pressed).
Pressing any button will cause the
numberornameofthe
button
pressedtobe
displayed on
the
bottom lineofthe Dot Matrix panel.
NOTE: Press
Stop
last becauseitwill also cause
youtoexit
test 5
and
return to the diagnostic
test
menu.
If you locate a button that is
not
functioning properly, the overlay can be
replaced
to
correct the problem.
6.
DMD
CABLE
CHECK
This test checkstosee that
the
cable connecting the
upper
display board and
the lower control board
is
functioning property. If this cable is defective, no
Front
Pages
About
this Manual i
FCC
Compliance Information
..
i
Table
of
Contents
iii
1
Safety
ImportantVoltage Infoonation
1-1
Grounding Instructions
.....
1-1
ImportantSafety Instructions 1-2
Caution Decals . . . . . . . .
..
1-4
2
TeetV1icaI
Spec:ifications
Specifications . . . . . . . . ...2-1
Bioflex 2-2
3 Preventive Maintenance
RegUar
Maintenance
Activities
3-1
Cleaning
Your
Treadmill. ...3-1
Running
Belt
Maintenance . 3-2
Other
Preventive
Maintenance
3~
Service
Schedule 3-7
Log
Sheet.
3-8
4
TroubIeehooting
Diagnostic Test Mode 4-1
Diagnostic
Menu
4-1
LED Functions
4~
Motor
Current & Voltage 4-7
Speed
SensorAdjustment
..
4-9
Error~
4-10
Flow
Charts 4-13
5 Removal &
Replacement
Running
Belt
&
Deck
5-1
Drive Belt . . . . . . . . . . . . . . . 5-4
Front
Roller
5-4
Rear
Roller
5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes 5-12
Elevation
Motor
5-14
Umit
Switch Assembly 5-17
PWM
Module 5-18
Display Board 5-20
EPROM
5-21
Contact Heart Rate Board . 5-22
CSAFE Board 5-24
Display Cable 5-25
Display Overlays 5-26
Handrail
Assembly 5-28
6
Diagrams
Parts
Ust
6-1
Exploded
VieW
.........•.
6-3
900T
Schematic 6-4
7 CustomerService
Contacting Service
7-1
Serial
Number
7-1
Retum
Material
Authorization
(RMA)
7-1
Damaged Parts 7-2
Page
4-3
Page
4-4
Cybex
900T
Treadmill
Service
Manual
signals can be transmittedtoand from either board.
Press
Entertoactivate this test. If the cable is functioning, the display will
show
"LOWER
COMM
OK, LOWER TIMING OK"
If
the
cable is not transmitting
data
successfully,
the
message will scroll either:
"NO
LOWER
COMM,
LOWER TIMING
OK"
- indicates a problem with the communications
between
the
two
boards
or
"LOWER
COMM
OK, NO LOWER
TIMING"
- indicates a problem with the timing circuit
of
the
upper
board or
the
'RTS' (readytosend) wireinone or bothofthe display cables.
In
most
cases, if eitherofthe
"NO"
messages are present, replacing the upper and/or lower
display cable will correct the problem.
7. CSAFE PORT
CHECK
This test checks the CSAFE port, located on the rearofthe control panel console. When you
run this test,
the
display will indicate either
"OK"or"CSAFE PORT CONNECTION OPEN".
To
conduct
this test properly, the CSAFE
test
wire fixture needstobe plugged into the
connector at
the
backofthe console. Without
the
connector in place, the test will always read
CSAFE PORT CONNECTION OPEN
8.
CLEAR
ERROR MESSAGE
This
test
will allow youtoclear an error
code
displayedinthe control panel.
When
Enter
is pressed, "ERROR MESSAGE CLEARED" will scroll across the
topofthe
display.
9. ERROR LOG
This test lists the last 16 error
code
numbers
the
treadmill has recorded. The first number
to
scroll across the displayisthe
most
recent error code generated by the treadmill.
10.
CLEAR
ERROR LOG
This test will allow you
to
clear the log displayed in test
9.
When
Enter
is pressed, the message "ERROR LOG CLEARED" will scroll across the
top
of
display.
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Cybex
900T
Treadmill
Service
Manual
11.
TOTAL
MILEAGE
This
test
displays
the
actual accumulated total mileage,todate,
the
treadmill
has been used.
For example: "1348
MI"
The control panel displays the test results until you press +
or-.
12.
TOTAL
HOURS
This
test
displays
the
actual accumulated total time,todate, in hours and
minutes
the
treadmill has been used.
For example: HOURS RUN: 396:52
The control panel displays the test results until you press
+ or
-.
13.
NUMBER
OF
STARTS
This
test
displays
the
numberoftreadmill startups.
For example: 469 STARTS
14.
"OUT
OF
ORDER"
DISPLAY
MODE
Repeated pressingofthe
Enter
button
allows youtotoggle between activation
and deactivation
of
the
"OUT OF ORDER" message. The display will indicate
status as follows:
"OUT
OF ORDER" DISPLAY ON, TREADMILL DISABLED
or
"OUT
OF ORDER" DISPLAY
OFF,
TREADMILL RE-ENABLED
15. DISPLAY BASE
ID
AND
VERSION
NUMBER
This
test
displays
the
revision
numberofthe
software versionofthe program
chip in
the
lower board.
For example: BASE
10 #: 3 REVISION 3.01
16.
EXIT
DIAGNOSTICS
To
exit
the
Test Mode, returntothe
diagnostic menu and press +or- until you
see
the
"16. EXIT DIAGNOSTICS" message. Press
Entertoreturn
the
treadmill
to
its previous state before entering diagnostic mode.
Front
Pages
About this Manual i
FCC Compliance Information
..
i
Table
of
Contents
iii
1
Safety
ImportantVoltage Information
1-1
Grounding Instructions
.....
1-1
Important Safety Instructions 1-2
caution
Decals . . . . . . . ...1-4
2 Technical
Specifications
Specifications . . . . . . . . ...2-1
Bioflex 2-2
3 Preventive Maintenance
ReglJar
MaintenanceActivities 3-1
Cleaning YourTreadmill
....
3-1
Running
Belt
Maintenance . 3-2
Other Preventive
Maintenance 3-6
Service Schedule 3-7
Log Sheet
3-8
4 TroubIeehoota1g
Diagnostic Test Mode 4-1
Diagnostic
Menu 4-1
LED Functions
4-6
Motor
Ct.JTent
& Voltage 4-7
Speed
Sensor
Adjustment..4-9
Enor
Codes
4-10
Row
Charts
4-13
5 Removal &
RepIacemMt
Running Belt & Deck 5-1
Drive
Belt
5-4
Front Roller. . . . . . . . . . . . . . 5-4
Rear Roller 5-4
Drive
Motor
5-5
Drive
Motor
Cleaning 5-8
Motor
Brushes. . . . . . . ...5-12
Elevation
Motor
5-14
Limit
Switch
Assembly 5-17
PWM
Module 5-18
Display Board 5-20
EPROM 5-21
Contact
Heart
Rate Board . 5-22
CSAFE Board 5-24
Display
Cable
5-25
Display Overlays 5-26
Handrail Assembly 5-28
6
Diagrams
Parts List 6-1
Exploded
VieW
6-3
900T Schematic 6-4
7
Customer
Service
Contacting Service
7-1
Serial
Number
7-1
Retum Material Authorization
(RMA)
7-1
Damaged Parts 7-2
Page
4-5
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