Precor EFX 825 User manual

EFX 885, 835, 825
Service Manual 20039-166
Page 1
©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
EFX 885, 835, 825
Warning: This service manual is for useby Precor trained service providers only.
If you are not a Precor Trained Servicer, you must notattempt to service any Precor Product; Call your dealer for service.
This documentcontains information required to perform the majority of troubleshooting, and replacement procedures
required to repair and maintainthis product.
This document contains general product information, software diagnostic procedures (when available), preventative
maintenance procedures, inspection and adjustment procedures, troubleshooting procedures, replacement procedures
and electrical block and wiringdiagrams.
To move directly toa procedure, click the appropriate procedure in the bookmark section to the left of this page. You
may drag the separator bar betweenthis page and the bookmark section to change thesize of the page being viewed.

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Section One - Things you Should Know
Right, Left, Front,and Back Conventions
In this manual, right, left, front, and back are fromthe perspective of a user standing on the C576ifacing thedisplay
enclosure.
General SystemInformation
The generator performs three functions in the EFX. First, by controlling the amount of electrical load applied to
internal battery. Lastly, one ofthe generators six phase outputwindings is monitored to determinewhen the
unit is in use and when it is idle. This system also determines the stride rate by determining the operating speed
(output frequency) of themonitored generatorwinding.
Warning and Caution Statements and General Safety Guidelines
Warning statements indicate a particularly dangerous activity. Warning statements you will find in this manual include:
If the EFX hasbeen in recent use, the load resistors and load resistor mounting bracket may be extremelyhot.
Because thisis a self powered unit, it will either be necessary to either equip theunit with the optional external
power supply orhave an assistant pedal on the unitwhile voltagemeasurementsare being taken. Because of the
danger of working onthe unit while it is in motion using the optional external power supply is strongly
recommended.
When the unit isused, stairarms are in motion; the generator will operate and produce potentially hazardous
voltages even when the battery is disconnected.
To remove power from the EFX, the optional external power supply (whenequipped) mustbe disconnected
from the wall outlet and the red (positive) lead must be disconnected from the battery. Always ensure that the
EFX external power supply is unplugged from the wall outlet and thered (positive) lead is removed from the
battery when you inspect or adjust theEFX, or whenyou isolate, remove, or replace anEFX component.
Removing the covers exposes high voltage components and potentially dangerousmachinery. Exercise extreme
caution when you perform maintenance procedureswith the cover(s) removed.
During service operations you will bevery close to moving machinery and voltagebearing components. When
you perform maintenance procedures with the covers removed, remove jewelry (especially from earsand neck),
tie up long hair, removeneck ties, and do notwear loose clothing.
Exercise caution when touching any wire or electrical component during EFX operation.

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A pinching hazard exists when the unit is operatedby turning thecrankarms by hand. Itis possible to seriously
pinch a finger between thecrankarm and stairarm. The stairarms should be removed beforeoperating the
crankarms by hand.Caution statements are intended to prevent damage to theEFX as a result ofthe current
activity. Caution statements included in this manual are listed below.
When it is necessary to lift or move the EFX, ensure that the EFX has adequate support and that you useproper
lifting techniques.
Safety guidelines you should know and follow include:
manual and follow all operating instructions.
Operate the EFX on asolid, level surface.Visually check the EFX before beginningservice or maintenance
operations. If it isnot completelyassembled or isdamaged in any way, exercise extreme caution while operating
and checking the EFX.
When operating the EFX, do not wear loose clothing. Do not wear shoes with heels or leather soles.Check the
soles of your shoesand removeany embedded stones. Tie long hairback.
Do not rock the unit. Do not stand or climb on the handlebars, display enclosure, or cover.
Do not set anything on the handlebars, display enclosure, or cover. Never place liquids on any part of the EFX,
while performing service.
To prevent electrical shock, keep all electrical components away from water and other liquids.
Do not use accessory attachments that are notrecommended by themanufacturer-such attachments might
cause injuries.
GeneralInformation
For the latest exploded view, part number and part pricing information, visit the Precor dealer website at
www.precor.com/connection.
Tools Required
Multimeter Allen wrench set
Anti-static kit Screwdriver set
4 - 6 gear puller 7/16 allen key, socket wrench mounted
Precor part number 20030-108 belt gauge Straight edge
US and metric endwrench set
US and metric socket wrench set
Torque wrench, 200 in./lbs.
Torque wrench, 200 ft./lbs

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Section Two Precor Console line
Console Line
The EFX with the upper body exercise andthe adjustable incline system will beavailable with two different console
options, the P80 and the P30. The following sections will provideprocedures on replacing components and
troubleshooting the three consoles. Choose the console section that applies toyour EFX.
EFX 885 with P80 Console
EFX 835 with P30 Console
EFX 825 with P20 Console

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Section Three P80 Console EFX

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Procedure 3.1 P80 Systems Settings
Procedure
1. The Welcome screenwill be the first screen you seewhen you approach the P80 console. Press the Pausekey
and continue holdingit down while youdouble press (prior to 1.1versionsoftwarerelease) or single press (1.1
version or after software release) in sequential order an Xconfiguration on theVolume and Channel key pad (
Channel Up, Volume Down,Volume Up,Channel Down). See Diagram 3.1.1. Release thePause key when
done pressing the arrows. Note: The keypad X configuration sequence should be not faster than 1 second
between each key stroke. Any speed faster than1 second mayresult in an unsuccessful access to thesign-in
screen.
2. The sign-in screen will be displayed. Type in the technician access code and then touch OK. The Settings menu
will be displayed. See Settings Table.
3. Use the System modeto configure settings inways that benefit theusers and the facility. Changes madeto these
settingssave to the fitness equipment. To select a Setting touch on an item in the Settings menu.
Diagram3.1.1
1
2
3
4
Volume &
Channel Key Pad
Pause Button

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4. Touch BACK to the Welcome screen.
Settings
Menu Item
Description
Navigation
Configure/View/Test
About
System information
settings provide
basic information
including equipment
models and serial
numbers. Most of
these settings are
for informational
purposes only and
cannot be modified.
Touch About
See Procedure 3.2, About
EquipmentUsage
The Equipment
Usage settings
provide information
on individual usage
as well as
cumulative
equipment usage.
This information and
these settings are
accessible only to
administrators and
registered service
technicians.
Touch Equipment
Usage
See Procedure 3.3,
EquipmentUsage
SystemSettings
Use the System
Settings to test your
equipment and set
parameters that
benefit your users
and your facility. The
System Settings
menu is visible only
to administrators
and registered
service technicians.
Touch System
Settings
See Procedure 3.4, System
Settings
Software
Downloads
Allows software to
be automatically
downloaded.
It is recommended
that this remain ON
at all times. Contact
Precor Customer
Service before this
setting is disabled.
Touch Software
Downloads
Touch radio button next to
On to Enable Automatic
Downloads.
DefaultisON
Touch radio button next to
Off to Disable Automatic
Downloads.
Reflashing
Used in advanced
troubleshooting.
Contact Precor
Customer Service
before changing
these settings.
Touch Reflashing
Contact Precor Customer
Service
Available Updates
Or
No Available
Updates(Default)
The default is No
Available Updates.
When Software
Downloads is
enabled and aUSB
flash drive is
installed that
contains a valid
software package,
Available Updates
will be displayed.
Touch Available
Updates
Touch nexttoany of the
available updates.
Touch View to see the
details of the update. Touch
BACK to updates list.
Touch Install toload the
update intothe console.
See Procedure 3.5, Updating
Software.

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Procedure 3.2 P80 About
1. Refer to Procedure 3.1 Settings, to access theAbout menus.
2. About settings providebasic information includingequipment models and serialnumbers. Most of these
settingsare for informational purposesonly and cannot be modified. See About Table. To select a About
item, touch on an item in the About menu.
About
Menu Item
Descriptions
Navigation
Configure/View/Test
EventLog
Provides a list of the most recent
hardware and software events, and
equipment status. If no events have
occurred since the last time the
event log was cleared, the event log
screen will be empty.
Touch Event Log
Details of the Event will belisted.
Touch REFRESH to update the list
in the log.
Touch SAVE to save the log to a
Flash drive device.
Touch BACK to About
EventCount
Number of events recorded by
equipment over its lifetime.
None
None
Console Serial Number
Set by Precor and stored in the
console's memory.
None
None
Lower Serial Number
Stored in the console's memory.
Note: This information is not
currently available to be displayed.
None
None
Location
Entered on console at the time of
registration.
Touch Location
Displays location information.
Touch BACK to About
Release Bundle Version
Shows current version of software.
Automatically updatesas part of
each software upgrade.
Touch Release
Bundle Version
Displays detailed information about
the current software.
Touch BACK to About
Etag Check Interval:
Determines how often the console
will check for updates.
None
None
HeartbeatInterval
Determines how often the console
communicates with the Server.
None
None
MinimumHeartbeat
Interval
Minimum amountof time between
heartbeats to the Preva server.
None
None
MaximumHeartbeat
Interval
Maximum amount of time between
heartbeats to the Preva server.
None
None
Mfe MAC Address
Stored in the consolesmemory. Set
at factory
None
None
Network Time Server 1
These addresses are set at the
factory and will notneed to be
changed in the field.
None
None
Network Time Server 2
These addresses are set at the
factory and cannot be changed in
the field.
None
None
Network Time Server 3
These addresses are set at the
factory and cannot be changed in
the field.
None
None
Machine Type
Type of equipment (AMT, RBK,
UBK, EFX, & TRM). Set at factory.
None
None
3. Touch BACK to Settings. Procedure 3.1.

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Procedure 3.3 P80 Equipment Usage
1. Refer to Procedure 3.1 Settings to access theEquipment Usage menus.
2. The Equipment Usage settings provide information on individual usage as well as cumulative equipment
usage. See EquipmentUsage Table.
3. The Equipment Usagescreen currently does not have additionaldetail or test screens.
4. Touch BACK to Settings. Procedure 3.1.
Equipment Usage
Menu or Information Item
Description
Navigation
DetailorTest
Cumulative Workout Seconds
Total number of seconds. Seconds are countedwhen
the workout clock starts
None
None
Cumulative Workout Distance
Treadmills will report miles of use.
AMTs will reporta horizontal distance as
miles.
Ellipticals will convert total strides to
miles.
Bikes will convert total revolutions to
miles
None
None
Cumulative WorkOut Sessions
Total number of sessions. A session is countedif the
summary screen displays.
None
None
Last Workout StartDate Time
The date of the start of the last workout.
None
None
Last Workout End Date Time
The date of the end of the last workout.
None
None

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Procedure 3.4 P80 System Settings
1. Refer to Procedure 3.1 Settings, to access theEquipment Usage menus.
2. Use the System Settings to test your equipmentand set parameters that benefityour users and your facility.
System Settings
Menu or Information Item
Description
Navigation
Configure/View/Test
SystemsTest
The systems tests allow you
to check specific functions of
the equipment.
Touch
Systems
Test
See Procedure 3.6
Connectivity
The connectivity screens
allow you to configure or
provides information about
connection.
Touch
Connectivity
See Procedure 3.7
Display
The display settings allow
you to configure,
Measurement units, Standby
Mode Delay, Time Zone, and
Closed Captioning.
Touch
Display
See Procedure 3.8
TV Settings
TV Settings help you setup
television channels for your
users.
Touch TV
Settings
See Procedure 3.9
Work out Limits
The Workout Limit settings
give you control over how the
equipment is used.Use these
settings to create reasonable
limitations for equipment
usage including speed,
incline, resistance, and
duration.
Touch
Workout
Limits
See Procedure 3.10
Manage Settings
Use this setting to save your
equipment settings to a USB
flash drive, or to import
settings from aUSB flash
drive.
Touch
Manage
Settings
See Procedure 3.11
(Cloning)

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Procedure 3.5 P80 Updating Software
during a workout.
Periodically the software will need tobe updated with improvements to the functionality and features. Procedurewill
A USB Flash drive device with pre-loaded softwareor a web site location where youcan upload the software onto aUSB
Flash drive device will be provided by PRECOR.
Procedure to update (Flash) software for P80consoles:
1. The Welcome screen will be the first screen you seewhen you approach the P80 console. Press the Pause key and
continue holding it down while you double press (prior to 1.1 version software release) or single press (1.1 version
or after software release) in sequential order an X configuration on the Volume and Channelkey pad (Channel
Up, Volume Down,Volume Up,Channel Down). SeeDiagram 3.1.1. Release the Pause key when done
pressing the arrows. Note: The keypad X configuration sequence should be not faster than 1 second between
each key stroke. Any speed faster than1 second may result in an unsuccessful access to the sign-in screen.
2. The sign-in screen will be displayed. Typein the technician access code and press enter.
3. Insert the USB Flash Drive into the USB Drive Port ofthe P80 console. See Diagram 2.
Diagram1
1
2
3
4
Volume &
Channel Key Pad
Pause Button
USB Drive Port
Diagram2
USB Flash Drive

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4. The P80 software will automatically access theUSB Flash Drive files and look for a valid software update. While the
USB Flash Drive isbeing validated, No Updates Available,will be displayed onthe P-80 console screen.Once an
update file has been identified and validated, Updates Available, will be displayed on the P-80 console screen.
Touch the spot on the P80 console screen whereUpdates Available isdisplayed to select.
5. A software packageor list ofsoftware packages will be displayed onthe P80 console screen. Touchthe spot on the
P80 console screen displaying the software package required.
Note: PRECOR customer service will specifywhich software package is required when the service is
requested to update P-80Consolesoftware. Ifyou are unsure of which software package should be
installed, contact PRECOR customer service.
6. Touch the spot on the screen displayingInstall and theP80 console will start the software installation process. The
software installation process can take up to 35 minutes and theconsole will automatically rebootwhen it has
finished.
7. Once the download asstarted itis safe to remove the USB Flash Drive device from theP80 USB port.
8. When the P80 has completed rebooting the Welcome screen willbe displayed.The installation ofthe software
update is now complete.
9. Verify the correct version of software has been installed. This can be found byaccessing the main menu using the
instructionsprovided in steps 1 and 2, then selecting About. The software version will be displayed underInstalled
Bundle Version and should match the package selected in step 5.

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Procedure 3.6 P80 Systems Tests
1. Refer to Procedure 3.1 Settings, to access theEquipment Usage menus.
2. The systems tests allow you to check specific functions of the equipment.
3. To select a Systems Test touch on an item inthe SystemsTest menu.
Systems Tests
Test
Equipment
Description
AutoStopTest
TRM Only
1. Touch AutoStopTest, then Touch START.
2. The Auto stop testwill start the belt at 1 mph; count will be reset to 0, and then
count up with each step.
3. Touch STOP to end the test. Touch BACK to exit to Systems Test.
BeltSpeedTest
TRM Only
1. Touch BeltSpeedTest, then TouchSTART.
2. The belt will start a 0.5 mph, using the machine control paddle to increase by 0.1
mph increments. The console will display motor currentas the belt speed
increases or decreases.
3. Touch STOP to end the test. Touch BACK to exit to Systems Test.
Incline Test
TRM Only
1. Touch InclineTest, and then Touch START.
2. Use the machine control paddle to change the lift. The consolewill display the
analog to digital (A/D) incline position number and the incline position in
percent of incline.
3. Touch STOP to end the test. Touch BACK to exit to Systems Test.
AMT Stride Position Test
AMT Only
1. Touch AMT Stride Position Test and then Touch START.
2. The High, Low and Dynamicpositions will bedisplayed. The low position display
shows the lowest position reading achievedduring the test. The high position
display shows the highest position reading achieved during the test. The
dynamic position display changes with current stride position. Stride on the
AMT to the maximum horizontal movement in bothdirections. Atmaximum
stride length the low stridedisplay should read 0 and the high stride display
should read 40.
3. Touch STOP to end the test. Touch BACK to exit to System Tests.
Brake Test
AMT, RBK,
UBK, EFX
1. Touch BrakeTest, then Touch START.
2. Use the machine control paddle to change the resistance upand down. The
resistance changes will be displayed in power bits.
3. Touch STOP to end the test. Touch BACK to Systems Test.

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Systems Tests Continued
BatteryTest
AMT, RBK,
UBK, EFX
1. Touch BatteryTest, and then Touch START.
2. The console will display the voltage of the battery.
3. Touch STOP to end the test. Touch BACK to Systems Test.
SPM
AMT, EFX
1. Touch SPMTest, and then START.
2. The console will display Pulse. The pulse is showing a count ofzero crossings from
the generator. SPM shows a software averaged version of pulse. A averaged pulse
per minute will display asMinimumand a Maximum pulse.
3. Touch STOP to end the test. Touch BACK to exit to Systems Tests.
RPMTest
RBK, EFX
1. Touch RPMTest, and then START.
2. The console will display Pulse. The pulse is showing a count ofzero crossings from
the generator. RPM shows a software averaged version of pulse.
3. Touch STOP to end the test. Touch BACK to exit to Systems Test.
CrossRamp
EFX Only
1. Touch CrossRampTest , and then Touch START.
2. Use the machine control paddle to change the CrossRamp.The console will display
the analog to digital (A/D) and Glitches incline position number. Available battery
voltage to the lift system will be displayed.
3. Touch STOP to end the test. Touch BACK to Systems Test.
USBTest
All
1. Touch USBTest.
2. The USB Test will show the numberof USBports currentlyactive, there should be
six. Insert a USB Flash drive into the USBport and then Touch CLOSE, and then
Touch USB Test again. The numberof active USB ports should beincreased by
one.
3. Touch CLOSE to exit to Systems Test.
Touchscreen Test
All
1. Touch TouchscreenTest.
2. Place your finger on one corner of the screen and run it around the edges multiple
times.
3. The line drawn by yourfinger should be very close to previous passes. Besure that
you do not touchanything else with your otherhand.
4. Touch FINISH to exit to Systems Test.

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Systems Tests Continued
Touchscreen Calibration
All
1. Touch Touchscreen Calibration.
2. A +will be displayedon a white screen. Touch the +, the spot you just touched
will disappear and then be replaced with another +in a different location on
the white screen.
3. Continue to touch the +as they appear on the screen until the test
automatically exits to the Systems Test screen. You cannot exit this testuntil
all the +have been touched and the screen is calibrated.
BacklightTest
All
1. Touch BacklightTest
2. The backlight will display three levels ofbrightness, 100%, 60%, and 0%in
succession in 1 second intervals, returning to the System Tests menu when
complete.
RGBTest
All
1. Touch RGBTest.
2. The full screen should move through a succession of five colors, requiring a
touch anywhere on the screen to advance to the next. These are Red, Green,
Blue, Black, White, returning to theSystems Testsmenu when all the
displayed colors have been touched.
Speaker Test
All
1. Touch Speaker Test.
2. This test will send an audible sound to the speaker mountedin the headphone
jack and while providing a graphic of a scrolling bar on the screen.When the
test is complete it will automatically exit to the Systems Test screen.
NumericBacklightTest
All
1. Touch NumericBacklightTest.
2. This tests the back lights of the lower displayjust above thepaddle controls.
The back lights of thedisplay will illuminate in sequence and then
automatically exit to the Systems Test screen.
NumericDisplayTest
All
1. Touch NumericDisplayTest.
2. This will test the numeric LCD display just above the paddle controls. All the
numeric characters will be displayed in sequence and then automatically exit
to the Systems Test.
HeartRate
All
1. Touch HeartRate.
2. Grasp both of the heart rate grips onthe handlebar, after a couple of seconds
the heart rate will be displayed.
3. Touch BACK to exit to SystemsTest.
3. Touch BACK to Settings. Procedure 3.1.

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Procedure 3.7 P80- Connectivity
Configuring youraudio, video, and network infrastructure requiresexpertise. Precor strongly recommends that you work
with a qualified contractorto set up this infrastructure.
This setting provides the following information:
Network Type
oWired (Default)
oWireless (This isa selectable option but is not currently supported)
Configuration
Status
IP Address
Preva Server
To view connectivity information:
1. Refer to Procedure 3.1 Settings, to accessthe Connectivity menus.
2. To select a Connectivity Setting touch on an item inthe Connectivity Settings menu.
Connectivitysettings
Settings
Default
Detail
Network Type
Wired
Configuration
Automatic
Automatic (DHCP) or Manual
(Static IP)
Press Network Settings to view the
IP Address
Netmask
Gateway
DNS Primary
DNS Secondary
Status
N/A
Connected Connected
to the network.
Not Connected Not
connected to the
network
IP Address
N/A
Location-specific
Preva Server
na.preva.precor.com

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Connectivity Set Up and Registration Procedure
1. Before you attempt to connectto the Precor Preva Server, check thestatus field and ensure that the Connected
is displayed. If the Status field shows Not Connected, you will needto diagnose your networking issue. Continue
with Step 2. If the Status Field showsConnected go to step 3. SeeDiagram3.7.1
2. Either the Ethernet cable is not connected or there isa problem with the network connection. Check the
connection and then check theStatus field again. If the Statusfield shows Connected continuewith step 3. If the
Status field still shows Not Connected contact your IT expert.
Diagram 3.7.1
3. Check the IP Address field for a valid IP Address. If the IPAddress is present continue with step 12. If the IP
Address is not present continue with step 4. See Diagram3.7.2.
Diagram 3.7.2
IP Address NotPresent
IPAddressPresent
Connected
NotConnected

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4. If the Status shows Connected and theIP Address isnot present, itwill be necessary to either have theP80
software assist in acquiring the IP Address (Recommended) or enter the IP address manually. Touch
Configuration from the Connectivity menu.
5. Touch on the radio button next to Automatic, and then touch SETTINGS. SeeDiagram 3.7.3.
Diagram 3.7.3
6. The P80 will attempt to connectto the network, andwhen successful will acquire the networking information
screen and display the current network information. Once a good IP Address has been acquired, the P80 can
now be registered.Continue with step 12.
7. Note: Manually setting up the network configurationis not recommended. Precede with the following
procedure only with assistance fromthe facilitiesIT staff. Touch Configuration form the Connectivity menu.
8. Touch on radio button next to Manual, and then touch SETTINGS. SeeDiagram 3.7.4.
Diagram3.7.4
9. Touch one of the networksettings items from the Connectivity menu.
10. Enter the data acquired fromthe network administrator using theon-screen key pad, and then select OK. See
Diagram3.7.5.
11. Repeat steps 9 and 10 for the remaining network settings.
Settings
Manual
Automatic
Settings

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Diagram 3.7.5
12. Once a good IP Address is displayed, touch Preva Server to enter the web address.
13. If you are in North America enter na.preva.precor.com by using the on-screen key pad.
14. Touch OK.
15. A screen will appear stating, The equipment is ready tobe set up, touch USER NAME AND PASSWORD.
16. The user name and password will havebeen provided by Precor prior to installation. Enter theuser name using
the on-screen keypad, then touch NEXT.
17. Enter the password using the on-screen keypad, thentouch NEXT.
18. The next screen willlist information that you need toknow before continuing with the registration process.
Site Code
Base Serial Number
Friendly Name
Site Code This is given at the time of the dispatch.
Base Serial The base serial number is located onthe exercise equipment.
Friendly Name - It is recommended that you have a list of the equipment with friendly names already assigned,
such as Elliptical 1,Treadmill 22, and so forth. Touch NEXT.
19. Enter the Site Code usingthe on-screen keypad, then touch NEXT.
20. Enter the Base SerialNumber using theon-screen keypad, then touch NEXT.
21. Enter the Friendly Name using the on-screen keypad,then touch NEXT.
22. The next screen displayed will be the Registration Summary screen. Reviewthe screen toensure the information
entered is correct before completing the registration. If the information is not correct touch BACK until the
screen with incorrect information is displayed. Make the corrections andthen touch NEXT unit you are back at
the Registration Summary Screen.
23. Touch Register to submit thedata.
24. If the registration was successful a screen with current software version will be displayed. Touch FINISH to the
Systems Settings menu, if a newer software version is available, the console will automatically start the
download.
25. Touch BACK to Settings. Procedure 3.1.
On Screen Key Pad