Sears 374.288450 Bedienungsanleitung

SERVICE

Manual

Model No.:

374.288450

(21-7119)

Treadmill

MADE IN U.S.A.

Prime Fit_"

Concourse 10.55 GI

Treadmill by p_p"

• Features

•Operation

•Trouble-Shooting

•Parts Replacement

•Adjustments

•Maintenance

• Parts List

•Parts Drawings 08-93

TABLE OF CONTENTS

FEATURES .................................................... 3

OPERATION ................................................... 4

Grounding Instructions ........................................... 4

Treadmill Operation .............................................. 4

Incline Adjustment ............................................... 4

Fitness Computer Operation ...................................... 6

Using The Pulse Pickup .......................................... 7

Operation Trouble-shooting ....................................... 8

SYSTEM TROUBLE-SHOOTING .................................. 9

Console ....................................................... 9

Interface Board ................................................ 9

Motor Controller ................................................ 9

Motor ......................................................... 9

Speed Control System Trouble-shooting ............................. 11

Speed Control System Wiring Diagram .............................. 12

PARTS REPLACEMENT ......................................... 13

Drive Belt, Front Roller, Treadbelt, Treadboard, and rear Roller Replacement 13

Motor/and or Flywheel Pulley Replacement ......................... 14

Motor Controller Replacement ..................................... 14

Interface Board Replacement ...................................... 14

Reed Switch Replacement ........................................ 14

Reset Switch Replacement ........................................ 15

Console, Fitness Computer, and /or Power Switch Replacement .......... 15

Wiring Harness Replacement ..................................... 15

Incline Lever Replacement ........................................ 16

Gas Cylinder Replacement ........................................ 16

ADJUSTMENTS ................................................ 17

Treadbelt Adjustment ............................................ 17

Reed Switch Adjustment ......................................... 17

Gas Cylinder Adjustment ......................................... 17

MAINTENANCE ................................................ 18

PARTS LIST

Treadmill ...................................................... 19, 20

Console ....................................................... 22

PARTS DRAWINGS

Treadmill ...................................................... 21

Console ....................................................... 23

FEATURES

• New Walk-Thru design features a more compact low profile footprint while offering more useable

running space. More track, less wasted space. 990 square inches of usable space; 10-15%

more than most extended profile designs.

• New Hard Body extruded frame provides superior strength; reduces vibration and noise.

• New Soft Step cushioned low impact deck with massaging effect.

• New Fast Track display features special visual graphics including a 1/4 mile trac and tacho

pulse graph. The extra large 2 1/2" x 4 3/4" LCD id fully programmable and allows continuous

viewing of time, speed, distance, pulse and calories. Fast Trac also features Fitness Index, a

computer calculated index that allows the user to monitor their fitness level.

• Side mounted 2 HP DC motor from G.E. featuring the new Silent Mountsystem to reduce noise

and vibration.

• Includes Power Key (start/stop) for easy-to-use safe operation.

• Gas assist incline allows you to adjust the percent grade for a more demanding workout.

• Speed range of 0.5 to 10.0 mph. FAST TRAC

•Made In U.S.A. DISPLAY

POWER

KEY

CUSHIONED

DUAL

HANDRAILS

ADJUSTMENT

LEVER

SOFT STEP

CUSHIONED

LOW IMPACT DECK

(TREADBOARD)

TREADBELT

HARDBODY

EXTRUDED

FRAME

(SIDERAILS)

SIDE MOUNTED

2 HP DC MOTOR

FIGURE 1

OPERATION

•This TREADMILL is intended for home use only.

Be sure your TREADMILL is sitting on alevel surface.

The TREADMILL should be plugged into a three prong (grounded) outiet in a 115/120 volt-60 Hz AC circuit separate

from all other appliances -see GROUNDING INSTRUCTIONS.

GROUNDING INSTRUCTIONS

This product must be grounded. If it should malfunction or breakdown, grounding provides a path of least resistance

for electric current to reduce the risk of electric shock. The plug must be plugged into an appropriate outlet that is

properly installed and grounded in accordance with all local codes and ordinances.

WARNING -- Improper connection of the equipment-grounding conduc-

tor can result in a risk of electric shock. GROUNDED

OUTLET

Check with a qualified electrician or serviceman if you are in doubt as to whether

the product is properly grounded. Do not modify the plug provided with the product GROUNDED

-- if.it will not fit the outlet, have a proper outlet installed by a qualified electrician. PIN __

This product uses a nominal 120 volt circuit and has a grounding plug that looks

similar to the plug illustrated.

No plug adapter should be used with this product. __,_pL :G_ _

The use of an extension cord with this product is not recommended, but if an

extension cord is needed, use a short (less than ten feet), heavy gauge (14 gauge U

or better) extension cord with a three prong (grounded) plug and receptacle.

TREADMILL OPERATION

NOTE: Before operating your treadmill, become familiar with all operating parts and controls -their location and

function -see FIGURE 3.

Step 1.

Step 2.

Step 3.

Step 4.

Step 5.

To Operate

CA UTION--To avoid injury, hold ontoHANDRAILS whilemounting and dismounting TREADMILL.

Place feet on SlDERAILS. Do notatand on TREADBELT. Securely attach POWER KEY CLIP to your

clothing. If you slip or fall while exercising, POWER KEY will pull out of CONSOLE, turning power off.

Insert POWER KEY fully into SLOT in CONSOLE, to turn treadmill's power "ON".

Push SPEED CONTROL UP BUTTON to adjust treadmill to slowest speed (0.5 mph).

Step onto TREADBELT and begin walking.

Push SPEED CONTROL UP BUTTON until you reach your desired speed.

NOTE: The TREADMILL is capable of speeds from around "0.5" to "10" miles per hour. Due to manufacturer

tolerances, the upper and lower speed limits may vary by +or -0.2 mph. The speed is read from the DISPLAY

in the CONSOLE.

Step 1.

Step 2.

Step 3.

Step 4.

To Stop

Push SPEED CONTROL DOWN BUTTON to adjust treadmill to slowest speed (0.5 mph)

Hold onto HANDRAILS and place feet on SIDERAILS.

Push STOP /PAUSE BUTTON.

Remove POWER KEY, to turn treadmill's power "OFF".

To Adjust Incline

CA UTION-- POWER KEY must be removed before incline adjustments are made.

RAISING .... Dismount the treadmill, pull up the INCLINE LEVER and release when the treadmill reaches the

desired incline angle.

LOWERING ---Mount the treadmill, pull up the INCLINE LEVER and release when the treadmill reaches the

desired incline angle. 4

OPERATION

FAST TRAC SPEED CONTROL

FITNESS COMPUTER UP/DOWN BUTTONS

SELECT

DISPLAY \,,i BUTTONS

STOP/PAUSE

BU1-FON

INCLINE

LEVER

POWER

KEY

POWER

KEY _

CLIP FITNESS

INDEX

BUTTON

OPERATOR'S VIEW

of CONSOLE

HANDRAILS

CONSOLE

TREADBELT

SlDERAILS

FIGURE 2

TREADBELT

ADJUSTMENT

SCREWS 5

OPERATION

FITNESS COMPUTER

The FITNESS COMPUTER is designed to provide five

functions displayed automatically, four programmable

functions and a fitness index function.

Automatically Displayed Functions

1. TIME:

2. SPEED:

3. DISTANCE

a. MILES:

b. LAPS:

4. CALORIES:

PULSE:

Counts up from 0:00.

Displays speed in miles per hour.

Counts up from 0 in total miles.

Counts up from 0 in total laps.

(1 lap = 114 mile)

Counts up from 0.

Displays your heart rate.

Programmable Functions

1. TIME: Time can be preset from 0:00 to

99.00 in one minute increments.

2. DISTANCE: Distance can be preset from 0 miles

(0 laps) to 49 3/4 miles (199 laps) in

1/4 mile (1 lap) increments.

3. CALORIES: Calories can be preset from Oto 990

in 10 calorie increments.

4. PULSE A pulse target can be preset from 90

TARGET: to 180 in 1 beat per minute incre-

ments or "--"for pulse display only.

The FITNESS INDEX button tracks your fitness level

with computer calculated fitness rating.

Insert POWER KEY. Functions willstart countingwhen

the treadmill speed is greater than Omph.

Press SELECT BUTrON until only display area of the

KEY

SELECT

BUTTON

FITNESS

INDEX

BUTTON

UP/DOWN

BUTTONS

desired function to beprogramed (TIME,

DISTANCE or CALORIES) is displayed.

Press UP or DOWN BUTTON until desired numberis

reached. Wait 4 seconds. When treadmill

speed is greater than 0 mph, desired pro-

_amed function (TIME, DISTANCE or

LORIES) will start counting.

1LAP

• Refer to TRAINING CHART on page 15 in owner's

manual for your recommened PULSE TARGET.

•Refer to "USING THE PULSE EARCLIP" section and

attach eamlip as directed,

Press SELECT BUTTON: until "PULSE" appears in

pulse display area.

Press UP or DOWN BUTTON : until desired PULSE

TARGET set point is

reached.

START IFINISH

IjPOINT

!lllllillilW

,.LAP---j m-- ,LAP

1/2 LAP 1LAP = 1/4 MILE 6

10Beats Per Pulse Target 10 Bests Per

Minute Below Set Point MinuteAbove

Pulse Target IPulse Target

_vi_v/\_ v/

\_" /\_" /\_" /

PULSE PULSE PULSE

BELOW WITHIN ABOVE

TARGET ZONE TARGETZONE TARGETZONE

OPERATION

The FITNESS INDEX button tracks your fitness level

with computer calculated fitness rating. The Fitness

Computer will calculate your fitness rating from 0 (Poor)

to 10 (Good).

Your level of fitness is determined by your pulse rate.

As you fitness level increases you will find that you will

need to walk or jog faster to stay in the pulse range you

have chosen. The FITNESS INDEX button gives you

feedback to your increasing fitness level.

NOTE: You must stay consistant in your workouts in

order to get an accurate and consistant fitness rating.

Refer to "USING THE PULSE EARCLIP" section and

attach earclip as directed.

After completing your workout, remain stillwith earclip

attached.

Press FITNESS INDEX button. 0:60 will appear in

TIME display area. Time will

count down to 0:00 and Fit-

ness Computer will calcu-

late your fitness rating from

Oto 10.

Using The PULSE EARCLIP

CA UTION -- This pulse earclip is not a medi-

cal device. Readings may not always be accurate. Best

readings may be obtained in a still, relaxed position.

IMPORTANT-- When exercising in a vig-

orous manner the erratic movement of the PULSE

EARCLIP or CABLE may cause the "P" to appear in the

PULSE window indicating incorrect pulse readings. Try

to keep the PULSE EARCLIP and CA BLE from uneces-

sary movement when exercising.

1. Insert EARCLIP PLUG into EARCLIP RECEPTACLE

on back of CONSOLE - see DETAIL "A".

2. Attach STRAIN RELIEF CLIP to your cellar or other

piece of clothing - see DETAIL "B".

]Y..Q.TJ_:EARCLIP CABLE must not be aflowed to be

in a strain.

3. Massage EARLOBE to increase circulation.

4. Attach EARCLIP to EARLOBE in a vertical position -

see DETAIL "C".

5. When exercise has been completed remove EAR-

CLIP from earlobe and clip it to EARCLIP CABLE.

DETAIL "A"

COLLAR """\

-. EARCLIP

-.. /CABLE

/:/

STRAIN RELIEF CLIP

DETAIL "B"

/._- _-.

// //-, •

/_: EARLOBE

EARCLIP

DETAIL "C"

OPERATION

10.

11.

12.

Treadmill Will Not Start.

Treadbelt Does Not Run In

Center Of Roller.

Treadbelt Slips While In Use.

Treadbelt Hesitates When

Stepped On.

Treadmill Makes "Rumbling"

Noise.

Treadmill Makes "whining"

Noise.

Treadmill Is DifficultTo Roll.

Black Particles Collecting

Under Treadmill.

No Display On Fitness

Computer in Console.

Fitness Computer Does Not

Display Speed Or Distance.

Fitness Computer Shuts Off.

No Pulse Displayed On

Fitness Computer.

OPERATION TROUBLE-SHOOTING

il. ! Not Plugged In.

i2.[ House Circuit Breaker

Tripped.

3. Treadmill Reset Switch

Tripped.

4. Unit Plugged Into Insufficient

Extension Cord.

5. Inadequate Voltage At Outlet.

1. Treadbelt Tension Not Even

Across The Treadbelt.

1. Treadbelt Tension Too Light.

1. Insufficient Lubricant On

Treadbelt.

1. Treadbelt Tensioned Too

High.

1. Walking Too Close To The

Edge Of Treadbelt.

1. Treadmill On Thick Carpeting.

1. Drive Belt Is Breaking In.

1. Treadmill Not Plugged In

And Power Key Not Inserted

Into Console.

1. Reed Switch Not Aligned

Properly.

1. Magnet Damaged Or Missing

From Pulley on t-ront Roller.

2. Reed Switch Not Working

Properly.

! 3. Fitness Computer Not

[ Working Properly.

21 Pulse Earclip Not Plugged

Into Console.

Pulse Earclip Not Properly

Attached To Earlobe.

Pulse Earclip In Direct

Sunlight

Pulse Earclip Is Moving

Around Too Much.

Plug Into Three Prong (grounded)

115/120 Volt-60 Hz AC Outlet - See

Treadmill Grounding.

Reset Or Replace Fuse.

Reset Treadmill Reset Switch.

Plug Directly Into Wall Outlet Or

Use Short (less Than Ten Feet),

Heavy Gauge (t4 Gauge Or Better)

Extension Cord.

Have Qualified Electrician Check

Voltage.

See - "Treadbelt Adjustment" on

page 17.

See - "Treadbelt Adjustment" on

page 17.

See "Maintenance" on page 18.

Loosen Treadbelt Ad ustment Bolts

Till Noise Ceases But Treadbe t

Does Not Slip While In Use.

Bring Stride Back Towards Center

Of Treadbelt.

Move To Hard Surface Or Low Cut

Carpeting.

Vacuum Under Treadmill

Periodically

Plug IntoThree Prong (grounded)

115/120 Volt-60 Hz AC Outlet - See

Treadmill Grounding. Insert Power

Key. Adjust Treadbelt Speed

greater than 0 mph.

See -"Reed Switch Adjustment" on

page 17.

Replace Magnet.

Replace Reed Switch.

i3. IReplace Fitness Computer.

r 1. ! Plug Pulse Earclip Into Back of

ti Console.

2. Massage Earlobe To Increase

Circulation And Reattach Pulse

Earclip.- See "Using The Pulse

3. I Earclip" On Page 7.

Place Pulse Earclip On Earlobe

.IAway From Direct Sunlight.

I4. Use Strain Relief Clip And Try Not

ITo Move Head Erratically -See

DETAIL "B" On Page 7.

IF OTHER PROBLEMS ARE ENCOUNTERED OR ANY PROBLEMS CAN NOT BE CORRECTED, PLEASE

CALL OUR SERVICE DEPARTMENT TOLL FREE AT 1-800-473-7247.

TROUBLESHOOTING

Console and Motor System

Four components make up the console and motor system; FAST TRAC FITNESS COMPUTER, mounted on the

console, INTERFACE BOARD, mounted on the bottom motor cover, MOTOR CONTROLLER and MOTOR mounted

to the front right rail.

Console

The CONSOLE contains the FAST TRAC FITNESS COMPUTER which controls the speed and elevation of the

treadmill. It also displays time, speed, distance (miles and laps), calories, and pulse.

The time will display from 0:00 to 99:00 inone minute increments. The speed will read between .5 and 10.0 at .1 MPH.

The distance is indicated in miles (0 to 49 3/4) and laps (0 to 199). The calories will be displayed from 0 to 990 in 10

calorie increments.The pulse displays your heart rate from 90 to 180 in 1 beat per minute increments. The time,

distance, calories, and pulse desired can be programmed into the fitness computer.

Interface Board

The interface board isan electronic circuitboard mounted tothe bottom motor cover- see FIGURE 3. With the treadmill

plugged in and the power key inserted the DC voltage from PI to N on the interface board should be 13.6 VDC. The

voltage from P2 to N will vary with the speed;

0 MPH - 0 VDC

.5 MPH - .68 VDC

10.0 MPH - 12.3 VDC

The voltage across the capacitor, Cl, should be 9.56 VDC. When the treadmill is runningat .5 MPH the motor should

maintain 250 RPM, at 10.0 MPH the motor should maintain 5200 RPM.

Motor Controller

The motor controller is an electronic circuitboard mounted to the right rail infront of the motor -see FIGURE 4. From

a grounded wall outlet the motor controller receives 120 VAC and converts it to variable DC 0 to 90 V. The monitor

and interface board adjust the output of the motor controllerfrom 0 to 90 volts.The motor controller senses the motor

speed by the tachometer. The tachometer on the motor tells the motor controller itsspeed. If a load isplaced on the

treadbelt the motor controller compares the set point of the speed control to the tachometer and makes adjustments

to the DC output voltage to the motor keeping the treadbelt runningat a fixed speed. For example, the output voltage

will be 9.5 volts at .5 MPH, as a person steps on the treadbelt the output voltage increases to compensate for the

extra motor loading, keeping the treadbelt runningat .5 MPH.

Motor

This treadmill uses a2HP DC motor - see FIGURE 5. When the voltage to a DC motor is changed the speed will

vary accordingly. The motor receives 0-90 VDC from the motorcontroller. The voltagefrom M1to M2whilethe treadmill

is running at 10.0 MPH should not exceed 90 VDC and the shouldbe turningat 5200 RPM. The motor has an integral

tachometer which tells the motor controllerthe motor'sspeed. The tachometer consistsof a coil ofwire inside a plastic

housing. A permanent magnet mounted to the motor, behind the fan, rotates inside the tachometer coil generating a

low voltage, proportional to the motor speed.

.66 VAC -250 RPM

9.40 VAC -5200 RPM

The tachometer coil should be 300 ohms 25 ohms.

Note: The tachometer can be measured with an ohmmeter only when disconnected from the motor controller.

The winding resistance should bevery low, approximately 1 ohm. Test each winding in the armature (the rotatingpart

inside the motor) by slowly rotatingthe motor shaft 1 complete revolution. All windings should be less than 2 ohms.

Note: The windings of the motor can be measured with an ohmmeter only when disconnected from the motor

controller.

TROUBLESHOOTING

INTERFACE

BOARD

MOTOR

CONTROLLER

FIGURE 3 FIGURE 4

SHAFT

2 HP DC

MOTOR

FAN

TACHOMETER

WIRESTO

CONTROLLER

POWER WIRES

TO M1 AND M2 ON

MOTOR CONTROLLER

,' TACHOMETER

GROUND WIRE

(GREEN)

TO FRAME

FIGURE 5

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