SCIFIT ISO7000R Manuel utilisateur

Table of Contents

Section Page

I. General Information 2-5

II. Theory of Operations 6-8

III. Mechanical Troubleshooting 9-10

IV. Electrical Troubleshooting 11-23

V. Adjustments and Parts Replacement 24-64

VI. Assembly Drawings and Part List 65-82

I. General Information

Purpose

This manual provides information for the servicing of SCIFIT ISO7000R

cordless recumbent bikes. It uses systematic troubleshooting procedures

to address problems that may arise with the cordless bikes. The actions

taken to resolve problems must be performed in the order stated.

Deviating from this sequence may cause damage to the equipment, lead

to unnecessary repairs, and/ or void the warranty.

Technical Support

For further assistance in the service of SCIFIT products, please call (800)

745-1373 or (918) 359-2040. We can also be reached by fax at (918)

359-2045 or by e-mail at servi[email protected].The Product Support

department is staffed from 7 AM to 6 PM CST Monday through Friday. A

voicemail service is available 24 hours daily for recording messages to

request technical support and to order replacement parts. Our mailing

address is 5151 S. 110

E. Avenue, Tulsa, OK 74146.

Please have the following information prior to calling product

support:

•Model number of equipment

•Serial number of equipment

•Point of contact name, address, and phone number

•Detailed description of symptoms encountered

SCIFIT Statement of Warranty

SCIFIT warranties new products against defective workmanship and/ or

materials under normal and proper use subject to the following limitations:

1. SCIFIT’s obligation to the original purchaser shall apply to both

parts and cost of labor required to replace or repair a defective

product for a period of one (1) year from the user purchase date as

documented by the warranty card. If the customer fails to return

the warranty card, the date of shipment from the factory is used.

Thereafter, for a period of two (2) years, such obligation shall

extend only to the supply of replacement parts or products with any

labor costs associated with such replacement or repair to be at the

Buyer’s expense.

2. SCIFIT’s obligation shall be limited to repairing or replacing

defective parts. No allowance shall be granted for repairs made

by Buyer without SCIFIT’s prior written approval. The decision

to replace or repair shall be solely at SCIFIT’s election.

3. SCIFIT’s warranty does not apply to parts requiring replacement or

repair due to abnormal wear and tear, improper use, corrosion

(perspiration), improper maintenance, improper rated grounded or

dedicated electrical circuits, or improper storage, nor does it apply

where all or part of the product has been altered from its original

state.

4. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,

EXPRESSED OR IMPLIED, ARISING BY LAW OR OTHERWISE

INCLUDING WARRANTY OR MERCHANTABILITY OF FITNESS

FOR PARTICULAR PURPOSE, AND IS IN LIEU OF ALL OTHER

LIABILITIES OF SCIFIT INCLUDING DIRECT, INDIRECT,

SPECIAL AND CONSEQUENTIAL DAMAGES OR PENALTIES

EXPRESSED OR IMPLIED WHETHER ARISING OUT OF

CONTRACT, NEGLIGENCE, OR OTHER TORT.

5. Certain wear items are excluded from warranty coverage unless

determined to be defective. These items include, but are not

limited to:

Rubber Grips

Pedal Straps

Seat

6. The following items are covered for a period of one (1) year only:

Pedals

Contact Heart Rate Grips

Heart Rate PCB/ Transmitter

Freight and Shipping

SCIFIT is NOT responsible for the repair or replacement of any unit or part

damaged during transit or installation. Fire, flood, and acts of God are

NOT covered under this warranty. The customer is responsible for

pursuing all freight damage claims with the appropriate transit company.

If the customer signs for freight-damaged goods without noting the

damage on the bill of lading, the customer is solely responsible for

the cost of repair or replacement for such freight damage.

Parts Supply

During the first 30 days, warranty parts will be shipped via next day

overnight delivery, excluding international shipments. Determination must

be made before 2:00 p.m. CST on any given weekday for next day

delivery. After 30 days, parts will be shipped via ground shipment. The

customer is welcome to request overnight or second day parts shipping at

the customer’s expense. If requested, SCIFIT will charge the customer’s

UPS or Federal Express account, or COD the difference in freight cost

between ground shipment and overnight or second day.

Return Parts

In order to research problems and ensure they do not reoccur, the

rapid return of defective parts is our biggest help! Thank you in

advance for your assistance.

On electronics orders, a $100.00 core charge is assessed to each printed

circuit board. This amount will be credited once the boards have been

received by SCIFIT. All defective parts must be returned to the SCIFIT

factory within 20 days of receipt of replacement part for invoice credit.

Otherwise, SCIFIT will expect payment on the core charge net 30 days.

Please follow these three (3) easy steps for returning parts:

Step 1: Keep the box and packing material in which the new parts arrived.

Locate the enclosed prepaid UPS return label. The return label is only for

the parts that need to be returned as denoted on the picking ticket.

Step 2: Wrap the defective part and place in the box for a safe return.

Include a copy of the picking ticket that came with the replacement part.

Step 3: When the parts have been packaged, place the prepaid UPS

return label on the outside of the box. Drop the package at any UPS

service center or hand the package to any UPS driver.

When all of the parts are received and inspected at the factory, a credit

will be issued for the original parts invoice. Attention service

companies: Warranty labor invoices will NOT be paid until required

defective parts are returned to the factory.

Installation

SCIFIT is NOT responsible for the repair or replacement of any unit or part

damaged during installation. The customer is responsible for inspection of

each unit and part for damage at the time of installation. The customer is

responsible for pursuing all damage claims with the installer.

Service Labor

Where applicable, SCIFIT Product Support will arrange a local field

service technician to provide field support. Every effort will be made to

schedule service during the two (2) working days following notification of a

problem or as soon as repair parts are available to the field service

technician. Where possible, parts will be supplied in advance of the field

service technicians so that the product is repaired with one (1) call. All

jobs to be performed under labor warranty must have SCIFIT’s prior

written approval or they will not be paid.

Preventative Maintenance

After training, always wipe down your SCIFIT exercise product.

Perspiration that continuously settles on the frame, upholstery, casings,

and control panels may eventually cause rust or damage. Damage

resulting from lack of maintenance will NOT be covered under warranty. .

Preventative maintenance, completed according to the schedule below,

will keep your SCIFIT elliptical functioning properly. We realize your time

is valuable and have kept these maintenance items to a minimum.

This preventative maintenance schedule assumes the equipment is

utilized 6 to 8 hours per day. If the equipment is utilized to a greater

extent, the maintenance schedule must be adjusted accordingly.

Machine Weekly Monthly 6 Months Yearly

Cordless

Bikes

Clean exterior.

See Note 1. Check crank and

pedal tightness.

See Note 2.

Lubricate seat

track. See Note 5.

Check belt for

fraying.

Lubricate drive

chain. See Note 4.

Clean interior. See

Note 3.

Note 1: Clean the console with a damp cloth. Use mild soap and warm water.

Dry with a clean towel. The rest of the machine can be cleaned using common

household cleaners.

Note 2: IMPORTANT: All pedal crank arms MUST be tightened after eight (8)

hours of initial use to ensure that the crank arms are seated properly. Not

tightening the crank arms upon initial use will loosen the arms and cause

damage. This will void the warranty. To comply with this requirement, simply

tighten the 8mm Allen bolt to approximately 40-45 foot lbs.

Note 3: Clean the interior using a damp cloth. Use mild soap and warm water.

Dry with a clean towel.

Note 4: We use Energy Release® clear gear and chain lube (part no. P018).

Any high quality chain lube will do.

Note 5: We use Super Lube® synthetic grease (item no. 82328). Any high

quality industrial grease will do.

II. Theory of Operations

The following is a theory of operation that encompasses all the electrical

components, their functions, and how they interact with each other.

Independent electrical components found in SCIFIT’s Cordless product line:

1. Lower PCB (Power Supply)

2. Upper PCB (Display)

3. Generator/Electromagnetic Brake

4. 12 Volt Battery

5. Wall Pack Receptacle

6. Hand Grip Heart rate PCB (HG HR)

7. Wireless Heart rate PCB (Polar)

Component Functions

1. Lower PCB (Power Supply)

A. Converts the12 to 400 volts AC from the generator into 12 volts DC

using switching power supply technology.

B. Provides 12 volts DC to upper PCB.

C. Accepts 12 volts DC from either the battery or wall pack

transformer if unavailable from the generator

D. Receives Pulse Width Modulation (PWM) signal from the upper

PCB for brake control.

E. Contains Hi-power MOSFET circuitry that controls the brake.

2. Upper PCB (Display)

A. Accepts commands from a user.

B. Displays information to the user.

C. Regulates 12 volts DC from lower PCB down to 8 volts DC and 5

volts DC.

D. Operates the 8 and 5 volt DC serial communications (c-safe and

cardio-key)

E. Provides 5 Volts DC to the contact and wireless heart rate jacks.

F. Receives signals from the contact and wireless heart rate PCB’s.

G. Contains 5 volt DC display (LED) drivers.

H. Contains the 5 volt DC memory and processor components.

I. Provides PWM signal to lower PCB for brake control.

3. Generator/Electromagnetic Brake

Generator:

oA three (3) phase generator that produces 0 to 400 volts AC

depending on the RPM’s.

oProvides AC voltage to the lower PCB.

Electromagnetic Brake

oAn eddie current transformer that uses rising and collapsing

electromagnetic fields to slow down the generator magnet traveling

through it’s field.

oControlled by the lower PCB.

4. 12 Volt DC Battery

A. 12 volt sealed lead acid 1.3 Amp Hour Battery.

B. Provides 12 Volts DC to lower PCB during:

oPause mode

oBetween intervals

oProvides power for 15 seconds after generator stops.

5. Wall Pack Receptacle

A. 12 volt DC input receptacle that accepts voltage from a DC wall pack.

B. Provides 12 volts DC to lower PCB when a wall pack is connected to it.

C. Aids in battery charging.

6. Hand Grip (Contact) Heart Rate (HG HR) PCB

A. Outputs a square wave to the upper PCB.

B. Equipped with right and left grip inputs.

C. Power and ground is provided by the upper PCB.

7. Wireless Heart rate PCB

A. Outputs a square wave to the upper PCB.

B. Has a 30” range and position is critical.

C. Power and ground is provided by the upper PCB.

System Functions

Starting the Machine

A. Pedaling the machine rotates the generator, which generates a

current to power the electronics. A minimum of 13 RPM or 10 FPM

must be maintained to keep machine powered up.

B. The generator provides AC voltage to the lower PCB. The lower

PCB then provides DC voltage to the upper PCB.

C. The User controls the resistance by selecting a level on the display.

The display sends a PWM signal which varies, depending on the

level selected. The signal travels through the ribbon cable to the

lower PCB. The lower PCB sends a square wave signal to the

transformer on the brake which is proportionate to the amount of

resistance commanded.

D. The brake LED on the lower PCB, labeled D38 on older units and

D19 on newer units, will illuminate any time braking is applied. The

intensity of the LED is proportional to the level of resistance.

E. The battery is charged anytime there is more than 13 RPM’s

present.

Stopping the unit

A. When pedaling is discontinued, the brake continues to spin.

B. The battery will engage once the actual RPM’s dip below 13.

C. The battery remains active for 15 seconds and then a transistor that

connects the battery to the rest of the lower PCB is unlatched. The

transistor will remain unlatched until the unit sees an rpm value

above 13 RPM’s.

Using the Wall Pack

A. Using the wall pack will allow the machine to be powered up

without pedaling. Quick Start or any other program can be selected

without have to pedal first. The machine will be powered up

constantly when the wall pack is in use.

III. Mechanical Troubleshooting

A. Mechanical Troubleshooting Table

Problem Possible Reasons Solutions

Pedals wobble when

bike is pedaled. Pedal is loose or stripped

out.

8mm crank bolt is loose.

Spindle crank shaft is

rounded off.

Square tapered hole in

crank arm is rounded

out.

Replace pedal, if threads are

damaged. (P. 54-55)

Tighten 8mm crank bolt. (P. 53)

Replace spindle crank shaft. (P.

56-57)

Replace crank arm. (P. 53)

Pedals lock up while

operating. 6” pulley has moved over

and is rubbing a pem nut

on the monocoque.

Bearing on spindle crank

shaft has seized up.

Realign pulley by loosening the

set screw on pulley collar and

sliding over. (P. 60-61)

Replace bearing. (P. 56-57)

Grinding, rubbing, or

scraping noise while

rotating pedals.

6” pulley has moved over

and is rubbing a pem nut

on the monocoque.

Bad bearing on spindle

crank shaft.

Bad bearing in the brake.

Belt not aligned properly.

Realign pulley by loosening the

set screw on pulley collar and

sliding over. (P. 60-61)

Replace bearing. (P. 56-57)

Replace brake. (P. 51-52)

Realign belt. (P. 58-59)

Clunking noise from

inside the unit. Brake pulley is loose.

6” pulley set screw is

loose on key.

Loose set screw on

bearing collar on spindle

crank assembly.

Replace brake. (P. 51-52)

Loc-tite and tighten set screw on

pulley collar. (P. 60-61)

Loc-tite and tighten set screw on

bearing collar on the spindle

crank assembly. (P. 60-61)

Problem Possible Reasons Solutions

Unit slips when

pedaled. Belt is loose.

Lower PCB is bad.

Re-tension belt. (P. 60-61)

Replace lower PCB. (P. 32-35)

Clicking noise heard

around pedals. Pedal bearings are bad.

Bad bearing on spindle

crank.

Replace pedal. (P. 54-55)

Replace bearing. (P. 56-51)

Crunching noise is

heard when pedaled. Chain or spindle crank is

misaligned.

Chain is improperly

tensioned.

Bad bearing on spindle

crank shaft.

Bad bearing in the brake.

Realign chain or spindle

sprocket. (P. 56-57)

Re-tension chain.

Replace bearing. (P. 56-57)

Replace brake. (P. 51-52)

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