Precor C844 Manual de usuario

C844 Upright Cycle

Page 1

C844 Bicycle

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.

Unauthorized Reproduction and Distribution Prohibited By Law

C844 Upright Cycle

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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 from the perspective of a user sitting on the C844,

facing the display enclosure.

Warning and Caution Statements and General Safety Guidelines

Warning statements indicate a particularly dangerous activity. Warning statements you will find in

this manual include:

• To remove power from the C844, the power cord must be disconnected from the wall outlet.

Always ensure that the C844 is unplugged from the wall outlet when you inspect or adjust the

C844, or when you isolate, remove, or replace a C844 component.

• Removing the covers exposes high voltage components and potentially dangerous

machinery. Exercise extreme caution when you perform maintenance procedures with the

hood removed.

• During service operations you will be very close to moving machinery and high voltage

components. When you perform maintenance procedures with the covers removed, remove

jewelry (especially from ears and neck), tie up long hair, remove neck ties, and do not wear

loose clothing.

• Exercise caution when touching any wire or electrical component during C844 operation.

• The flywheel is very heavy. Be prepared for the weight of the flywheel when it comes off of

the flywheel shaft.

Caution statements are intended to prevent damage to the C844 as a result of the current

activity. Caution statements included in this manual are listed below:

• Notice the orientation notch on the PROM (U3). These components must be positioned with

the same notch orientation.

• When it is necessary to lift the C844, ensure that the C844 has adequate support. Do not lift

the C844 by the front cross-member.

Safety guidelines you should know and follow include:

• Read the owner’s manual and follow all operating instructions.

• Visually check the C844 before beginning service or maintenance operations. If it is not

completely assembled or is damaged in any way, exercise extreme caution while operating

C844 Upright Cycle

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and checking the C844.

• When operating the C844, do not wear loose clothing. Do not wear shoes with heels or

leather soles. Check the soles of your shoes and remove any embedded stones. Tie long hair

back.

• 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 C844.

• To prevent electrical shock, keep all electrical components, such as the power cord and

circuit breaker away from water and other liquids.

• Do not use accessory attachments that are not recommended by the manufacturer, such

attachments might cause injuries.

General Information

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

website at “www.precor.com/Dealer.

C844 Upright Cycle

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Required Tools and Equipment

The following is a summary of the tools and equipment that may be required when you service a

Precor C844 Upright Cycle.

Tools

Phillip and flat-head screwdrivers

Standard and metric allen wrench set

Open-end wrench set

Socket wrench set

Chip puller

Rubber mallet

Snap ring pliers

Torque wrench

Equipment

Anti-static kit

Digital multimeter

Supplies

Cable ties

C844 Upright Cycle

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Procedure 2.1 - Performing C844 Cycle Diagnostics

This procedure tests or displays the following:

• Display Array

• Seven Segment Displays

• Baseline Resistance

• Software Revision Number

• Heart Rate Diagnostic

• Power Bits

• Keypad Test

1. Plug the power cord into the wall outlet, then turn on the cycle with the ON/OFF switch.

2. With the PRECOR C844 banner scrolling, press the STOP, WORK LEVEL UP and WORK

LEVEL DOWN keys simultaneously.

3. Verify that the entire left display window illuminates, then two diagonal lines sweep across

the display.

4. Watch the electronic display as the LED test progresses. This test is programmed to display

the following LED illumination sequence:

a. Every LED on the left display window illuminates simultaneously;

b. Horizontal, vertical, and diagonal lines of illuminated LED’s sweep across the left display

window;

c. The right display windows illuminate, then decrement from 8.8.8.8 to 0.0.0.0;

d. The function LED’s illuminate simultaneously and then extinguish; and

e. Each function LED illuminates separately and then extinguishes.

5. If you do not observe the LED illumination sequence described in the previous steps . . .

THEN . . . OTHERWISE . . .

Replace the upper PCA as described Continue with the next step.

in Procedure 7.1.

C844 Upright Cycle

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6. Make a note of the Baseline Resistance numbers displayed on the electronic console.

Individually press the WORK LEVEL keys and verify that the Baseline Resistance numbers

change as the WORK LEVEL keys are pressed.

7. The software version number is displayed on the electronic console. Press ENTER, then

release.

8. HArt is displayed in the right display window. Put on the heart rate monitor.

9. While using the Heart Rate Transmitter, verify that the HEART RATE indicator blinks in time

with your heart beat and the heart rate information displayed is correct . . .

THEN . . . OTHERWISE . . .

Diagnostic software HArt mode checks Refer to the Smart Rate System

correctly; continue with the next step. Service and Maintenance Manual.

10. Press ENTER, then release. The power bits is displayed on the electronic console. Press

ENTER, then release.

C844 Upright Cycle

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Note: Seven dots are displayed in the center of the left window.

As you press each key listed in Step 11, the column of the left display window corresponding to

the key pressed should illuminate. When you release each key, the column of light should be

replaced by a single dot.

11. Press each key listed:

BLANK

ENTER

BLANK

STOP

WORK LEVEL UP

WORK LEVEL DOWN

12. If the appropriate sections of the left display window illuminated when the corresponding

keys were pressed . . .

THEN . . . OTHERWISE . . .

The keypad test passed successfully; Replace the upper PCA as described

continue with the next step. in Procedure 7.1.

13. Press ENTER and WORK LEVEL UP to return to the PRECOR C844 banner.

C844 Upright Cycle

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Procedure 2.2 - Displaying the Odometer

This procedure displays total distance (in miles or kilometers).

1. Plug the power cord into the wall outlet, then turn on the bike with the circuit breaker.

2. With the PRECOR C844 banner scrolling, press the STOP and WORK LEVEL UP keys

simultaneously and hold them until the message CYCLE ODOMETER scrolls across the left

display window.

Note: The right display window displays total miles or kilometers on the cycle (see

Diagram 2-2). The top display window shows the most significant bits of the number; the

lower display window shows the least significant bits of the number. The number

displayed is 102,187,723 (in miles or kilometers).

3. Press ENTER twice to return to the User ID prompt.

Diagram 2-2. Odometer Reading For the C844 Cycle

0001

0218

7723

C844 Upright Cycle

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Procedure 2.3 - Selecting Club Settings

This procedure allows the modification of the following settings:

• U. S. Standard/Metric

• Line Voltage Selection

• Get Max Workout Time

1. Plug the power cord into the wall outlet, then turn on the cycle with the ON/OFF switch.

2. With the PRECOR C844 banner scrolling, press the QUICKSTART and WORK LEVEL ▲

keys simultaneously. Across the left display window scrolls either the banner U. S.

Standard or the banner Metric.

3. If you wish to change the measurement standard . . .

THEN . . . OTHERWISE . . .

Use the UP or DOWN keys to toggle Continue with the next step.

to an alternate measurement standard;

then continue with the next step.

4. Press ENTER, then release. The line voltage currently selected is displayed on the left

display window.

5. If you wish to toggle to the alternate line voltage. . .

THEN . . . OTHERWISE . . .

Use the UP or DOWN keys to toggle Continue with the next step.

to the alternate line voltage; then

continue with the next step.

6. Press ENTER, then release. The maximum workout time is displayed on the left display

window.

7. If you wish to change the maximum workout time . . .

C844 Upright Cycle

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THEN . . . OTHERWISE . . .

Use the UP or DOWN keys to select Continue with the next step.

the new maximum workout time;

then continue with the next step.

8. Press ENTER, then release to return to the C844 Cycle banner.

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