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.

EFX 885, 835, 825
Service Manual 20039-166
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©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
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.

EFX 885, 835, 825
Service Manual 20039-166
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©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
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

EFX 885, 835, 825
Service Manual 20039-166
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©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
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

EFX 885, 835, 825
Service Manual 20039-166
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Section Three P80 Console EFX

EFX 885, 835, 825
Service Manual 20039-166
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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

EFX 885, 835, 825
Service Manual 20039-166
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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.

EFX 885, 835, 825
Service Manual 20039-166
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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.

EFX 885, 835, 825
Service Manual 20039-166
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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

EFX 885, 835, 825
Service Manual 20039-166
Page 10
©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
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)