Precor 5.17 User manual

5.17 Elliptical Fitness Crosstrainer

Page 1

5.17 Elliptical Fitness Crosstrainer

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

20039-123

5.17 Ellipitical Fitness Crosstrainer

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Section One - Things You Should Know

System Information

The 5.17 disables lift (ramp) operation and changes in resistance levels when the unit is not in

use. In order for ramp and resistance levels to be selectable the unit must be in use, that is, the

system must be receiving a normal pulse from the reed switch speed sensor.

The 5.17 EFX operates from a 12 Vdc source. An AC to DC power adapter is provided with the

EFX. See Diagram 1.1.

Diagram 1.1 - Power Adapter

Right, Left, Front, and Back Conventions

In this manual, right, left, front, and back are from the perspective of a user standing on the EFX

5.17, 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

5.17 Elliptical Fitness Crosstrainer

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this manual include:

• To remove power from the EFX 5.17, the power adapter’s power cord must be disconnected

from the wall outlet. Always ensure that the EFX 5.17 power adapter is unplugged from the

wall outlet when you inspect or adjust the EFX 5.17, or when you isolate, remove, or replace

a EFX 5.17 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 EFX 5.17

operation.

Caution statements are intended to prevent damage to the EFX 5.17 as a result of the current

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

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

same notch orientation.

Safety guidelines you should know and follow include:

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

• Visually check the EFX 5.17 before beginning service or maintenance operations. If it is not

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

and checking the EFX 5.17.

• When operating the EFX 5.17, 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 EFX 5.17.

• 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.

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General Information

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

website at “www.precor.com/Dealer.

Required Tools and Equipment

The following list is a summary of the tools and equipment required when you service Precor’s

EFX 5.17.

TOOLS EQUIPMENT

phillips and flat-head screwdrivers anti-static wrist strap

digital multimeter

standard and metric allen wrench sets

open-end wrench set Supplies

blue loctite

drive ratchet and ratchet set cable ties

chip puller Spares

rubber mallet interconnect cables

snap ring pliers

torque wrench

belt gauge (part # 20030-117)

5.17 Elliptical Fitness Crosstrainer

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Section Two - Preventive Maintenance

Preventive maintenance measures are either scheduled or unscheduled. Scheduled preventive

maintenance activities are included here so that you are aware of preventive measures

performed on a regular basis.

Regular Preventive Maintenance (Owner)

Cleanliness of the EFX 5.17 and its operating environment will keep maintenance problems and

service calls to a minimum. Precor recommends that you perform the following preventive

maintenance schedule.

At the End of Each Day

Wipe down the stairarms, ramps, wheels and frame with a damp cloth.

Every Week

Wipe the surface of the electronic console with a slightly-damp sponge or soft cloth. Dry with a

clean towel.

CAUTION

Keep water away from electronic components to prevent shock.

On-Site Preventive Maintenance (Service Technician)

Perform the following preventive maintenance tasks each time you are called to service an EFX

5.17:

Examine the belts for wear, cracks or other signs of deterioration and replace if necessary.

Visually examine all wires and check connectors and wire connections. Secure connections and

replace wiring as necessary.

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Section Three - Checking EFX 5.17 Operation

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

of the EFX at the end of most maintenance procedures.

Procedure

1. Plug the power adapter’s power cord into the wall outlet, the power adapter’s jack into the

EFX 5.17 and set the on/off switch in the “on” position.

2. Select Resistance Level 1.

3. Operate the EFX for 4–5 minutes. As you operate the EFX, concentrate on the operating

sounds made by the unit. Be on the alert for unusual rubbing, hitting, grinding, or squeaking

noises.

4. If the EFX makes unusual noises or the electronic display does not change appropriately,

troubleshoot per section 6.

5. Press the RESISTANCE key until you reach Resistance Level 5. Operate the EFX for

another 2–3 minutes.

6. If the EFX resistance does not change or the operation of the EFX feels inconsistent

compared with Resistance Level 1, troubleshoot per section 6.

7. Press the RESISTANCE key until you reach Resistance Level 10. Operate the EFX for

another 2–3 minutes.

8. If the resistance of the EFX 5.17 does not change or the EFX operation feels inconsistent

with Resistance Levels 1 and 5, troubleshoot per Procedure 6.5.

9. Press the CROSSRAMP key while viewing the electronic console. Confirm that the foot

pads incline and the ramp display increments to 7 as the CROSSRAMP key is pressed.

10. Press the CROSSRAMP  key while viewing the electronic console. Confirm that the foot

pads return to the lowest position and the ramp display decrements to 1 as the

CROSSRAMP key is pressed.

11. If the ramp system of the EFX 5.17 does not operate properly, troubleshoot per Procedure

6.4.

12. Turn off the EFX with the circuit breaker, then unplug the power adapter’s power cord from

the wall outlet.

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Procedure 4.1 - Calibrating the Lift Motor

1. In order to calibrate the lift motor, it is necessary to disconnect the lift motor from the ramp

assembly.

2. Set the on/off switch in the “off” position. Remove the six screws that retain the front half of

the front cover to the rear half of the front cover and remove the front half cover.

3. Remove the retaining clip from each lift nut mounting pin. Support the lift ramp assembly

and remove the lift mounting pins from the lift nut. Raise the ramp and support it from the

handlebars using a bungi cord (See Diagram 4.1).

Diagram 4.1 - Supporting the Ramp

4. Connect a DC voltmeter between the blue and brown wires of the lift motor connector. Set

the on/off switch in the on position. Operate the ramp until the DC voltmeter reading is as

close to 1.1 VDC as possible. Set the on/off switch in the off position. Set the meter, while

still connected between the blue and brown wires, to read ohms. Grasp the lift motor drive

screw and rotate it until the ohmmeter reads 240Ω(See Diagram 4.2)

5. Rotate the lift nut on the lift motor drive screw until the distance between the top surface of

the lift nut and the top of the lift motor drive screw is three inches. If the lift motor drive screw

is allowed to rotate while lift nut is being positioned, the ohmmeter will no longer read 240Ω.

The lift calibration number must be 240Ω. The distance measurement must be correct and

the ohmmeter must read 240Ω for the lift calibration to be correct.

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Diagram 4.2 - Lift Motor Mounting

6. Remove the bungi cord from the ramp and set the ramp at it’s mounting position. Do not

rotate the lift nut any more than is necessary to align the holes in the lift nut with the holes in

the ramp. Replace both lift nut mounting pins. Replace both retaining clips on the lift nut

mounting pins.

7. Set the on/off switch in the “on” position. Thoroughly test all lift related functions per Section

Three.

8. Set the on/off switch in the “off” position, replace the front cover per Procedure 6.1.

3.00”

Lift Nut Pin

Lift Nut

Retaining Clip

Lift Nut

Lift Motor

Drive Screw

Lift Motor

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Procedure 4.2 - Inspecting and Adjusting Belt Alignment and

Tension

Procedure

1. Set the on/off switch in the “off” position.

WARNING

Before continuing with this procedure, review the Warning and Caution statements listed in

Section One, Things You Should Know.

2. Remove the rear cover as described in Procedure 6.1.

3. Operate the unit by rapidly rotating a crankarm by hand. As the unit operates watch the

drive belts for proper alignment. The belts should operate parallel to each other and the

belts should maintain even spacing.

4. If the belts are not correctly aligned...

THEN... OTHERWISE...

Continue with the next step. Skip to step 13

5. Refer to Diagram 4.3 for the following belt alignment steps.The right and left tension bolts

have locking tabs. If necessary, use pliers to bend the locking tabs out of the way so that the

bolts can be turned.

6. If the step up pulley belt is out of alignment to the right, continue with step 8.

7. If the step up pulley belt is out of alignment to the left, continue with step 10.

8. Turn the left tension bolt 1/4 turn clockwise, then repeat step 3. If turning the left adjustment

bolt 1/4 of a turn was not sufficient, turn the right tension bolt 1/4 of a turn counterclockwise.

9. Repeat step 8, alternating between the left and right tension bolts until the alignment is

correct. Continue with step 13.

10. Turn the right tension bolt 1/4 of a turn clockwise, then repeat step 3. If turning the right

adjustment bolt 1/4 of a turn was not sufficient, turn the left tension bolt 1/4 turn

counterclockwise.

11. Repeat step 10, alternating between the right and left tension bolts until the alignment is

correct.

12. Belt tension must now be checked and if necessary corrected. Remember, if it is necessary

to change the belt tension, the belt alignment must be maintained.

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Diagram 4.3 - Drive Unit

13. Place a belt gauge (McMaster-Carr 6160K12 or Grainger 3HX33) in the middle of the step

up belt and the center of the belt span (see Diagram 4.4). Lay a straight edge along the

length of the belt and beside the belt gauge. Slide one of the o-rings up against the shoulder

of the belt gauge. Press downward on the belt gauge, causing the belt to deflect. Read the

deflection on the belt gauge at the edge of the straight edge. Deflect the belt 1/2”. Read the

tension across the top edge of the o-ring. If the belt is correctly tensioned the gauge will

read between 14 and 16 pounds.

14. If the tension in step 13 is correct skip to step 18. Otherwise continue with the next step.

Step up

Belt

Brake

Input

Belt

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