Precor 9.23 Manuel utilisateur

9.23, 9.27 Treadmill

20081-118 Page 1

9.23, 9.27 Treadmill

Warning: This service manual is for use by Precor trained service providers only.

IfyouarenotaPrecorTrainedServicer,youmustnotattempttoserviceanyPrecorProduct;

Call your dealer for service.

This document contains information required to perform the majority of troubleshooting, and

replacement procedures required to repair and maintain this 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 wiring diagrams.

To move directly to a procedure, click the appropriate procedure in the bookmark section to the

left of this page. You may “drag” the separator bar between this page and the bookmark section

to change the size of the page being viewed.

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9.23, 9.27 Treadmill

Page 2

Section One -

Things you Should Know

About This Appendix

Section One, Things You Should Know. This section includes technical specifications. Read

this section, as well as the 9.23, 9.27 Treadmill Owner’s Manual, before you perform the

maintenance procedures in this manual.

Section Two, Software Features. Precor treadmills are programmed with several diagnostic

and setup features. This section contains the procedures you need to access the diagnostic

features on this treadmill.

Section Three, Checking Treadmill Operation. This section provides you with a quick way of

checking treadmill operation. Check treadmill operation at the end of a maintenance procedure

and when it is necessary to ensure that the treadmill is operating properly.

Section Four, Inspection and Adjustment Procedures. Perform inspection procedures when

a trouble symptom points to a particular problem and after removing and replacing major

components. Many maintenance problems can be fixed by adjusting various treadmill

components. This section also provides you with the step-by-step procedures required to make

these adjustments.

Section Five, Troubleshooting Procedures. The diagnostic and troubleshooting procedures

contained in this section should be performed when it is necessary to isolate a problem to a

particular component.

Section Six, Replacement Procedures. When a treadmill component must be replaced, go to

this section and follow the step-by-step procedures required to remove and replace the

component.

Section Seven, Technical Diagrams and Parts Lists. This section includes wiring diagrams,

and block diagrams for the 9.23, 9.27 Treadmill.

General Information

For the latest exploded view diagram, part number and part pricing information, visit the Precor

dealer website at “www.precor.com/connection”.

9.23, 9.27 Treadmill

20081-118 Page 3

Technical Specifications

Length: 76.5 inches (194.3 cm.)

Width: 30.5 inches (77.5 cm.)

Height: 55 inches (140 cm.)

Running surface: 20 inches by 59 inches (51 cm. by 149.9 cm.)

Motor: 2.75 hp. continuous duty DC

Speed: 0.5 to 12 mph or 0.8 to 20 kph)

10 mph is equivalent to a 6 minute mile

Incline: 0% to +15% grade

Power: 120 Vac 50/60 Hz @ 15 amp

9.23, 9.27 Treadmill

Page 4

Procedure 2.1 - Error Codes and Lower PCA Indicators

Error Codes:

03 - EEPROM Error: EEPROM checksum test error, when this error is consistently displayed,

the upper PCA is usually the cause. If displayed intermittently, the cause is typically

external, A.C. power spikes, for example.

26 - Speed Error: This error indicates that the speed control circuit is not receiving correct motor

speed pulses. This could be the result of incorrect speed, speed sensor failure, or drive

motor failure.

40 - Lift Error: This error indicates that the lift control system is not receiving correct analog

position information from the lift motor. This could be the result of lift motor connection

failure, lift motor potentiometer failure, lift motor failure or lower PCA failure.

Lower PCA Indicators: The lower PCA is furnished with seven LED indicators. Their names and

functions are listed below.

Power - The POWER LED should illuminate when the treadmill is powered “on”. The POWER

LED is in the 12 Vdc power supply and indicates the input to the power supply is

receiving voltage.

UP - The UP LED should illuminate when the incline is operating in the upward direction. The UP

LED indicates that operating voltage has been applied to the incline up relay.

DOWN - The DOWN LED should illuminate when the incline is operating in the downward

direction. The DOWN LED indicates that operating voltage has been applied to the

incline down relay.

PWM - The PWM LED should illuminate whenever the drive motor is in motion. The PWM LED

indicates that the PWM drive signal is being applied to the drive motor power controller

circuit.

LIMIT - The LIMIT LED indicator will illuminate when too much current is being demanded from

the drive motor power controller circuit. If the drive motor’s instantaneous current

exceeds 28 amps, the current limit circuit is activated. When current limit is activated the

drive motor current and speed can not be increased.

MOT DRV - Indicates a defective drive motor circuit. Typically caused by a component failure on

the lower PCA.

SHUTDOWN - If the drive motor current exceeds 28 amps for 3-5 seconds, the motor drive

signal is removed and the motor drive circuit is shutdown.

9.23, 9.27 Treadmill

20081-118 Page 5

Procedure 2.2

- Accessing the Odometer and Hour Meter

1. Set the on/off switch in the “on” position and remove the safety key from the console. Allow

the internal power supply to discharge, approximately 10 seconds, and then replace the

safety key on the console. Within 2 seconds of replacing the safety key, press the STOP,

INCLINE , SPEED keys, sequentially.

2. The odometer in miles or kilometers will be displayed in the DISTANCE window of the

display. See Diagram 2.1, below.

3. The hour meter will be displayed in the TIME window. See Diagram 2.1, below.

4. The upper PCA software version will be displayed in the main window.

5. Press the STOP key to exit this program.

Diagram 2.1 - 9.27 Display

Distance

Window

Time

Window

Speed Keys

Incline Keys

Quick Start

Key

Enter Key

Stop Key

9.23, 9.27 Treadmill

Page 6

Procedure 2.3 - Accessing the Service Mode Program

Calibration - Incline calibration and treadmill calibration

Console Sel - Sets the console for 9.23 or 9.27 operation

Display Test - Tests the display

Key Test - Tests the keypad

1. Set the on/off switch in the “on” position and remove the safety key from the console. Allow

the internal power supply to discharge, approximately 10 seconds.

2. While pressing the QUICK START and SPEED keys, simultaneously, replace the safety

key on the console. Continue to press the QUICK START and SPEED keys until the

display scrolls “SERVICE MODE”. The main screen will display the upper software version

number.

3. Press the ENTER key, the display will read CALIBRATION. Use the , to scroll between

the four test modes, Calibration, Key Test, Display Test and Console Sel. Press the

ENTER key to select the appropriate test. You may press and hold the STOP key at any

time to exit the SERVICE MODE program.

Calibration

4. Inc Limit will be displayed at the bottom of the display and the incline A/D number will be

displayed in the HEART RATE window. As the incline is raised or lowered the A/D number

should track the incline’s movement.

5. The A/D number will be used to calibrate the incline, Procedure 4.1. Warning, Do not

change the A/D number at this point, if the incline requires calibration, go to Procedure 4.1.

6. Press the ENTER key to enter the treadmill calibration mode.

Warning

During this procedure the running belt will be accelerated to the treadmill’s maximum

(12.0 mph) speed. Do not stand on the treadmill’s running belt during this procedure.

7. This procedure must be performed after the upper PCA, the upper PCA software or the

lower PCA has been replaced and before the treadmill is placed into normal operation.

8. When the running belt stops the display show the test results Pass or FAIL and will then

return to the normal user mode and the calibration process is complete.

Key Test

9. One at a time press all of the keys on the console, the key name should be displayed at the

bottom of the display. Pressing the STOP key a second time will exit the key test.

9.23, 9.27 Treadmill

20081-118 Page 7

Display Test

10. The display test will light every segment in the display. You must watch the display

throughout the test to ensure that every display segment is functioning. This test will run

continuously until you press the STOP key to halt the display test.

Console Sel

11. The display will indicate whether the console is set as a 9.23 or 9.27 treadmill/ The will

toggle the setting. Press the ENTER key to save the setting that agrees with the treadmill’s

model number.

9.23, 9.27 Treadmill

Page 8

Procedure 2.4 - U.S. Standard/Metric Selection

1. Set the on/off switch in the “on” position and remove the safety key from the console. Allow

the internal power supply to discharge, approximately 10 seconds, and then replace the

safety key on the console. Within 2 seconds of replacing the safety key, press the STOP,

INCLINE , SPEED keys, sequentially.

2. Press the ENTER key to toggle the selection between U.S. Standard and METRIC.

3. Press the ENTER key to save the selection.

9.23, 9.27 Treadmill

20081-118 Page 9

Procedure 2.5

- Documenting Software Problems

When a problem is found with the software in the upper or lower PCA, record the information

listed below.

When a problem occurs, record the following information:

• Model and serial number. Provide the model number as accessed in Procedure 2.2.

• Program number running when the problem occurred

• A description of:

a. What happened or failed to happen.

b. The action taken by the user just before the problem occurred.

c. Problem-related information (such as how far into the program the problem occurred,

the work level being used when the problem occurred, etc.).

• The frequency of occurrence.

9.23, 9.27 Treadmill

Page 10

Section Three

- Checking Treadmill Operation

This section provides you with a quick method of checking treadmill operation. Check treadmill

operation at the end of a maintenance procedure and when it is necessary to ensure that the

treadmill is operating properly.

Procedure

1. Plug the power cord into the AC outlet. Set the safety switch in on its operating position on

the console, refer to Diagram 2.1. Set the on/off switch in the “on” position, the on/off switch

should illuminate. All of the LED’s on the display should illuminate for a couple of seconds

and the scroll the message PRESS QUICKSTART OR PROGRAM. The POWER LED

should illuminate on the lower PCA.

2. Place the treadmill in Manual Mode. Adjust the speed of the running belt to 2–3 m.p.h.

Remove the safety switch from the console. The display should go blank and the treadmill

belt stop. Replace the safety switch on the console, all of the LED’s on the display should

illuminate for a couple of seconds and the scroll the message PRESS QUICKSTART OR

PROGRAM.

3. Place the treadmill in Manual Mode. Adjust the speed of the running belt to 2–3 m.p.h.

Operate the treadmill for at least 5 minutes.

a. Concentrate on the feel of the running belt and the sound of the drive motor and rollers.

Be on the alert for unusual noises, smells, or vibrations.

b. Log the AC input current under loaded and unloaded conditions.

c. Observe the LED’s on the electronic console. Make sure that each LED lights as the in-

formation corresponding to that LED is displayed on the electronic console.

4. Press the STOP key. When the treadmill comes to a stop, view the electronic console as the

treadmill the message PAUSED - PRESS QUICK START TO CONTINUE scrolls on the

display. Adjust the speed of the running belt to 2–3 m.p.h.

5. Press the INCLINE ▲key while viewing the electronic console. Confirm that the running

bed inclines and the incline display increments to 15% as the INCLINE ▲key is pressed.

6. Press the INCLINE ▼key while viewing the electronic console. Confirm that the running bed

returns to a level position and the incline display decrements to 0% as the INCLINE ▼key is

pressed.

7. Set the on/off switch in the “off” position, then unplug the treadmill from the AC outlet.

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