Quinton Q55 User manual

551

65

ieal

min

Service Manual

Qui

,

..

Other

quality

products

a.vailable from Quinton:

TREADMILLS

ARTIFICIAL KIDNEY A-V

CANNULAE

DIAG

NOSTle

ELECTRONIC

INSTRUMENTS

GASTROINTESTINAL

I NSTRUMENT.S

HOME

EXERCISE

NT

AND ACCESSORIES

@ 1983

by

Quinton

Co.

All

rights

reserved.

Publication

No. 0208-830

Quinton

PUBLICATION

CHANGE

NOTICE

instrument

co.

PUBLICATION(SJ

AFFECTED:

Q55/Q65

Medical Treadmill

Service

Manual

Publication

Number

0208-830

Serial

Numbers

Affected:

All

DATE:

May

2,

1984

1.

Section

2.4,

page

2-1.

Insert

the

following

warning

preceeding

the

step

2

paragraph:

Qr02

-0029

lOB)

I

WARNING

I

EXCESSIVE

RISK

CURRENT

(LEAKAGE)

MAY

RESULT

IF

THIS

EQUIPMENT

IS

CONNECTED

TO

OTHER

THAN

SINGLE

PHASE

GROUNDED

CENTER

TAP

SUPPLY.

-

TABLE

OF

CONTENTS

SECTION

1.

INTRODUCTION

1.1

1.2

1.3

1.3.1

1.3.2

1.3.3

1.4

1.5

1.6

1.6.1

1.6.2

1.7

1.7.1

1.7.2

1.8

1.9

SCOPE

.......................................................................................................................

1-1

ORGANIZATION

..•..•.•...•.•.••.••••..••••••••..•.......•....••.....•..•.•

1-1

Q55/Q65

PRODUCT

DESCRIPTION

••••••••••••••••••••••••••••••••••••••••••••

1-1

Q2000 Stress Test

Monitor

.......................................................................................................

1-1

Mode1645

Programmable

Treadmill

Controller

•••••••••••••••••••••••••••••••••••

1-2

Treadmill Controller ..................................................................................................................

1-2

TREADMILL

CONTROLLERS

............................................................................

1-2

ACCESSORIES ...........................................................................................................................

1-2

OPTIONS

.....••...•••••....•.••••••••••••••••••....•.....•.............

Power

Options

............................................................

.1-2

Hardware Options (Q55/Q65)

.....•....•..••..••..•............................

1-3

SPECIFICATIO

NS

...•..•.••.••••.••••••.•.••••••.••....

Q

55

SpecificatioIlS

.••.....•..•.••.••.•.••.••....•.......

.1-3

Q65

Specifications

...........•.•..••••.••.••..•...•..•....•.....••...........

1-3

OPERATOR

MANUAL

•••••••••••••••••••••••••••••••••••••••••••••••••••••••

1-4

REFERENCES

...•••••••••••••.••••••••••••••.•••.•.••.••••..•..•.......•...

1-4

SECTION

2.

OPERA

TIO N

2.1

2.2

2.3

2.4

INTRODUCTIO

N

RECEIVING

•••••

...........................................................

...

........................................................

.2-1

•2-1

UNPACKING

AND

INSPECTION

••••••••••••••••••••••••••••••••••••••••••••••

2-1

INSTALLATION

CHECKOUT

PROCEDURE

•••••••••••••••••••••••••••••••••••••

2-1

SECTION

3. THEORY

OF

OPERATION

3.1

3.2

3.3

3.4

3.5

3.5.1

3.5.2

3.5.3

3.5.4

3.6

3.7

3.8

3.9

3.10

3.11

INTRODUCTION

..•••.••...•....•.••.••••.••••.•....•.....•..•.••••••.••••••

3-}

PRINTED

CIRCUIT

BOARD (PCB)

•••••••••••••••••••••••••••••••••••••••••••••

3-1

POWER SUPPLY

.•••.•.....••.•••••••••••••.....••.•.......••.••.••.•....••••

3-}

DRIVE MOTOR

..•..•..••.•..•••••••.•...•••..•.•.•..•.....•..•.••••••••••••.

3-3

INPUT

SHAFT,

OUTPUT

SHAFT,

BELTS AND PULLEYS

•••••••••••••••••••••

3-3

Input

Shaft.

. . . . . . . . . . . •. . . . . • . . . . . . . . . . . . . . . . . . . . . . . .

.....•...•..•••.••..

3-4

Output Shaft

.........•.•..•........•..............................•...•.....

3-4

Variable Speed Belt

.......•.....•.•........................•..••.••..••......

3-4

Treadmill

Drive

and

Idler

Pulleys

••••••••••••••••••••••••••••

WALKING BELT

AND

BELT

TRACKING

SWITCHES

••••••••••

.

.............

.

3-4

.

.............•

3-4

SPEED

CHANGE

MOTOR ASSEMBLY

••••••••••••••••••••••••••••••••••••••••••

3-5

TACHOMETER ASSEMBLY ......................

GRADE

MOTOR

...•••••••.••••••••••••••...••••

PINION

SHAFT

AND

RACK

GEARS

•••••••••••••

GRADE

POTE

NTIOMETER

••••••••••••••••••••••

.......................

.

3-5

·

.....

.

.................

.

3-5

·

.......................

.

3-5

·

.......................

•

3-5

SECTION 4. TROUBLESHOOTING

4.1

4.2

4.3

INTRODUCTIO

N

•.••••••.•••••••••••••••••....•.••.••....•.....•••..•...•.••

4-1

DIAG NOSTIC

AIDS

•••.••.•••••••••..•.••••••••••••.......•..•.•..•...•..•••.

4-1

TROUBLESHOOTING

PROCEDURE

••••••••••••••••••••••••••••••••••••••••••••

4-1

SECTION

5.

CORRECTIVE

MAINTENANCE

5.1

5.2

5.2.1

5.2.1.1

5.2.1.2

5.2.1.3

5.2.1.4

5.2.1.5

5.2.1.6

5.2.1.7

5.2.1.8

5.2.1.9

5.2.2

5.2.2.1

5.2.2.2

5.2.2.3

5.2.2.4

5.2.2.5

5.2.3

5.2.3.1

5.2.3.2

5.2.3.3

5.2.3.4

5.2.3.5

5.2.4

5.2.4.1

5.2.4.2

5.2.4.3

5.2.5

5.2.6

5.2.6.1

5.2.6.2

5.2.6.3

5.3

5.3.1

5.3.2

5.3.3

5.3.4

5.3.5

5.4

5.4.1

5.4.2

5.4.3

5.4.4

5.5

INTRODUCTION

••••••••••••••••••••••••••••••••••••••••••••••••••••

"

••••••

5-1

DISASSEMBLY

AND

REASSEMBLY

PROCEDURES

••••••••••••••••••••••

'

•••••••

5-1

Access

Under

the

Treadmill

Hood

•••••••••••••••••••••••••••••••••••••••••••••

5-1

Drive

Motor

2M2

Replacement

••••••••••••••••••••••••••••••••••••••

,

••••••

a_*

.5-1

Speed

Change

Motor

2A2

Replacement

••••••••••••••••••••••••••••••••••••••••

5-1

Speed

Change

Motor

Capacitor

2A2Cl

Replacement

•••••••••••••••••••••••••••••

5-2

Tachometer

2A3

Optical

Sensor

Replacement

•••••••••••••••••••••••••••••••••••

5-2

Tachometer

Beam

Chopper

Replacement

•••••••••••••••••••••••••••••••••••••••

5-2

Grade

Motor

2Ml

and/or

Grade

Motor

Gearbox

Replacement

•••••••••••••

~

•••••••

5-2

Grade

Potentiometer

2RI

Replacement

••••••••••••••••••••••••••••••••••••••••

5-3

Printed

Circuit

Board

(PCB)

2Al

Replacement

•••••••••••••••••••••••••

,

••••••••

5-4

Drive

Motor

Contactor

2Kl

Replacement

••••••••••••••••••••••••••••••••••••••

5-4

Disassembly

to

Remove

the

Input

Shaft

Assembly

•••••••••••••••••••••••••••••••

5-4

Input

Shaft

Assembly

Replacement

••••••••••••••••••••••••••••••••••••••••••••

5-4

Replacement

of

a

Seized

Bearing

on

the

Input

Shaft

...............................

5-5

Reinstallation

of

a

Loose

Bearing

on

the

Input

Shaft

•••••••••••••••••••••••••••••

5-6

Speed

Change

Spindle

Assembly

Replacement.

••••••••••••••••••••••••••••••••••

5-6

V-Belt

and/or

Machined

Pulley

Replacement

••••••••••••••••••••••••••••••••••••

5-6

Disassembly

to

Remove

the

Output

Shaft

Assembly

•••••••••••••••

~.

ir~

~:.;~

tl'

•••

"~

••.

5~6,\

Output

Shaft

Assembly

Replacement

••••••••••••••••••••••••••••••

'

.'~,,:

~

:c

••• ;•

~

5~7

...

Replacement

of

a

Seized

Bearing

on

the

Output

Shaft

•••••••••••••

.,.

•••••••

·

•••••

5-7

Reinstallation

of

a

Loose

Beari

ng

on

the

Output

Shaft

••••••••••••••••

~

••••••••••

5-7

Variable

Speed

Belt

Replacement

•••••••••••••••••••••••••••••••••

~

,-.':'

••••••••

5-8

..

'.

-

'.

Tlming Belt

Replacement

•••••••••••••••••••••••••••••.•••••••••

~

.:

••••••••.••

5-8

Disassembly

to

Remove

the

Rack

Gears

or

Pinion

Shaft

••••••••••••••••••••••••••

5-8

Rack

Gear

Reassembly

••••••••••••••••••••••••••••••••••••••••••••••••••••••

5-8

Replacement

of

a

Jammed

Rack

Gear

•••••••••••••••••••••••••.••••••••••••••••

5-9

Pinion·

Shaft

Replacement

••••••••••

e

••

·

•••••••••••••••••••

e

••••••••••••••••••••

5~9

Belt

Tracking

Switch

Replacement

••••••••••••••••••••••••••••••••••••••••••••

5-10

Disassembly

to

Remove

the

Walking

Belt

or

Drive

or

Idler

Pulley

••••••••••••••••••

5-10

Walking Belt

Replacement

•••••••••••••••••••••••••••••••••••••••••

~

•

~

•••••••

5-10

Drive

or

Idler

Pulley

Replacement

••••••••••••••••••••••••••••••••••••••••••••

5-10

Removing

a

Burr

from

the

Deck

•••••••••••••••••••••••••••••••••

,•

-.'f

r"',

~,.'.,

• • • • t 5-10

ADJUSTMENT

AND

ALIGNMENT

PROCEDURES

•••••••••••••••••••

':~

•••••••••

'5-11

Timing

Belt

Tension

Adjustment

••••••••••••••••••••••••••••••••••••••

~

•••••••

5-11

Walking

Belt

Tension

or

Track

Adjustment

•••••••••••••••••••••••••••••••••••••

5-11

Adjusting

the

Setscrews

on

the

Speed

Change

Yoke

••••••••••••••••••••••••••••••

5-11

Torque

Limiter

,Adjustment

•••••••••••••••••••••••••••••••••••••••••••••••••••

5-12

Tachometer

Beam

Chopper

Alignment

•••••••••••••••••••••••••••••••••••••••••

5-12

CALIBRATION

PROCEDURES

•••••••••••••••••••••••••••••••••

'

••••••••••••••

5-13

Speed

Calibration

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

5-13

Grade

Calibration

...........................................................

5-14

Trip

Level.(Low Volts)

Calibration

••••••••••••••••••••••••••••••••••••.••••••••

5"-15

Grade

Potentiometer

Calibration

•••••••••••••••••••••••••••••••.••••••••••••••

5-15

.

POST-MAINTENANCE

PROCEDURE

•••••••••••••••••••••••••••••••••••••••••

5-15

SECTIO N 6. DRA

WI

N

GS

•••••••••••••••••••••••••

,

••••••••••••••••••••••••••••••••••••

6-1

-

LIST

OF

FIGURES

Figure

1-1

Figure

1-2

Figure 1-3

Figure

3-1

Figure

3-2

Figure 3-3

Figure 4-1

Figure

5-1

Figure 5-2

Table

3-1

System

Q (Q2000 with Q55)

...............................................

1-1

Model 645

Programmable

Treadmill

Controller

•••••.•••••••••••••.••••.••••

1-1

Q65 with

Treadmill

Controller,

14544-002

.•••.••••••••••••.•.••••••••.

1-2

Q55/Q

65

Medical

Treadmill

Components

••••••••••••••••••••••••••••••••••.

3-2

Q55/Q65

Medical

Treadmill

Functional

Block

Diagram

•••••..••.•••••••••••••

3-7

Input

Shaft,

Output

Shaft,

Belts

and

Pulleys

••••••••••••••.•••••••••...•••••

3-3

Waveform

at

2AIP7,

1

...............................................

4-18

Loosening

the

Variable

Speed

Belt

•••••••••.••••••••.••••••••••.••••••••••

5-5

Speed

Change

Spindle

Assembly·

•••••••••.•••••••••••••••••••••••••••••.••

5-11

Drive Motor Specifications

...............................................

3-3

Thank you

for

purchasing

this

product from Quinton Medical Co.

With

proper

care

and

operation,

it

will provide

outstanding

performance,

both now and in

the

years

to

come.

To assure

safe

operation

and

efficient

use

of

your

time,

please

read

the

entire

operator

manual before

operating

the

equipment.

If you have questions

or

problems regarding

either

operation

or

service,

please

contact

your

local

representative

or

our

Seattle

office.

If

you

discover

damage

to

your equipment,

refer

to

Section

2

for

instructions

on

damaged

shipments

and

freight

claims.

-

SECTION

1.

INTRODUCTION

1.1 SCOPE

This

service

manual includes

information

on

how

to

install

and maintain Quinton's Q55 and

Q65 Medical Treadmills. The manual does not

include

information

regarding any

of

the

three

treadmill

controllers

that

can

be

used with

the

treadmill:

the

Q2000

Stress

Test

Monitor

(PIN

0207-001 through 0207-006),

the

Model 645

Programmable

Treadmill

Controller

(PIN

0222-001 through 0222-003)

or

Quinton's

Treadmill

Controller

(PIN

14544-001 or -002).

1.2 ORGANIZATION

The

information

in

this

service

manual is

organized

as follows:

Sect

ion 1

contains

a

general

description

of

the

Q55 and Q65 Medical Treadmills and

lists

options, accessories,

specifications

and

references.

Section

2

contains

information

on

rece

lYIng,

uncrating,

inspecting and installing

the

Q55/Q65

Medical Treadmill.

An

installation

checkout

procedure

is included.

Section

3

contains

the

theory

of

operation

for

the

Q55/Q65.

It

contains

a

general

description

of

the

treadmill

to

the

functional

block

diagram

level.

Section

4

addresses

troubleshooting

the

Q55/Q65.

It

describes

diagnostic aids built

into

the

treadmill

unit and includes

fault

logic

diagrams

to

assist

in troubleshooting.

If

a

failure

occurs

on

the

printed

circuit

board

(PCB),

component

replacement

should

occur

at

the

factory.

For

this

reason,

detailed

troubleshooting

procedures

for

the

PCB

are

not

provided.

Section

6

contains

corrective

maintenance

procedures. The

section

includes alignment,

adjustment,

disassembly,

repair

and

reassembly procedures.

Section

7

contains

assembly drawings,

cross-indexed

to

reference

designations.

1.3

055/065

PRODUCT DESCRIPTION

The Q55 and Q65 Medical Treadmills

are

designed

to

function

as

Unit 2

of

Quinton's Q

Series

of

stress

test

products. One

of

the

following Quinton

instruments

functions

as

Unit I,

the

treadmill

controller.

1.3.1

02000

Stress

Test

Monitor

In

Quinton's

System

Q,

the

treadmill

is a

peripheral

to

the

Q2000

Stress

Test

Monitor.

Figure

1-1

shows

the

System

Q (Q2000 with

Q55).

Figure

1-1

System 0

(02000

with

055)

In

System

Q,

the

Q55 or Q65 depends

entirely

upon

the

Q2000

for

operational

control.

The

operator

can

use

the

dedicated

treadmill

controls

on

the

Q2000

front

panel

to

change

speed

or

grade. The

operator

can

also use a

stored

treadmill

protocol,

programmed

by

the

operator,

to

control

speed, grade and

duration

for

each

stage

of

the

protocol.

Figure 1-2 Model 645 Programmable Tread-

mill

Controller

1-1

1.3.2

Model

645

Programmable Treadmill

Controller

Quintons

Model 645

Programmable

Treadmill

Controller

(PTC)

can

also

be

used

to

run

the

Q55

or

Q65. The 645

PTC

is

a

microprocessor-controlled

system

that

can

automatically

control

the

Q55

or

Q65

during

a

stress

test.

The 645 PTC

can

store

up

to

12

protocols,

two

of

which

are

permanently

stored.

The

other

10

protocols

can

be

programmed

by

the

operator.

Controls

on

the

645

PTC

also

allow

manual

control

of

the

treadmill.

The

645 PTC displays

metabolic

information

as

well

as

speed

and

grade

indication.

Figure

1-2 shows

the

Model 645

Programmable

Treadmill

Controller.

1.3.3

Treadmill

Controller

A

third

control

device

that

can

be

used with

the

Q55/Q65

is

Quinton's

Treadmill

Controller.

Figure

1-3 shows

the

Q65 with

the

Treadmill

Controller.

In

this

configuration,

treadmill

control

is

totally

manual.

Figure

1-3

065

with

Treadmill Controller, PIN

14544-002

1.4

TREADMILL CONTROLLERS

Any

of

the

following

treadmill

controllers

can

be

used

to

operate

the

Q55/Q65

treadmill.

Treadmill

Controller

Q2000

Stress

Test

Monitor

230V, 60Hz

230V, 50Hz

100V, 60Hz

100V, 50Hz

208V, 60Hz

115

V,

60Hz

1-2

Part

Number

0207-001

0207-002

0207-003

0207-004

0207-005

0207-006

645

Programmable

Treadmill

Controller

Handrail

Mount 0222-001

Table

Top 0222-002

Rack

Mount 0222-003

Treadmill

Controller

Q55

Treadmill

Q65

Treadmill

1.5

ACCESSORIES

14544-001

14544-002

The following

accessories

are

shipped

with

the

Q55/Q65.

Your Quinton

sales

or

service

representative

will

inventory

these

items

during

installation.

Accessory

Handrail

Assembly

Handgrip,

Fabric

Operator

Manual

1.6

OPTIONS

Part

Number

12976-001

13802-001

0208-841

The following

options

are

available

for

the

Q55/Q65:

1.6.1

Power

Options

Q55

Option

230V, 60Hz, Single

phase

230V, 50Hz, Single

phase

100V, 60Hz, Single phase

100V, 50Hz, Single

phase

208V, 60Hz, Single

phase

l15V, 60Hz, Single

phase

Q65

Option

230V, 60Hz, Single

phase

208V, 60Hz, Single

phase

Part

Number

0208-001

0208-002

0208-003

0208-004

0208-005

0208-006

Part

Number

0221-001

0221-005

Treadmill

users

are

advised

that

an

autotransformer

should

not

be

used

to

increase

115 Vac

to

230 Vac

to

run

the

treadmill.

Consult

your

local

licensed

electrician

to

correct

the

voltage

at

your

facility.

-

--

1.6.2 Hardware Options

(a55/a65)

Option

Overhead

Mask

Support

Side

Handrail,

Short

Side

Handrail,

Long

Emergency

Off

Switch

Ca

theter

Arm

Support

1.7

SPECIFICATIONS

1.7.1

a55

Specifications

Performance

Part

Number

13689-001

13690-001

13691-001

13675-001

0043-002

Maximum

rated

load: 350 Ib (159 kg),

Bruce

Protocol

Belt

speed

range:

1

to

10

mph (1.6

to

16

kph),

continuously

adjustable

Elevation

range: 0

to

2596

grade

(0

to

14°)

Power

options:

100 Vac, 1 PH, 50

or

60

Hz, 24 A

115 Vac, 1

PH,

60 Hz, 24 A

230 Vac, 1

PH,

50

or

60 Hz,

12

A

208 Vac, 1

PH,

60 Hz,

12

A

Minimum

branch

circuit

requirements:

100 Vac -30 A

115Vac-30A

208

Vac-

15

A

230

Vac-15

A

NOTE

The

branch

circuit

must

be

dedicated

to

the

Q55 only. If

used

with a Q2000,

do

not

connect

the

Q55

and

the

Q2000

to

the

same

circuit.

En

vironmental

Operating

temperatures:

60

to

95°P (15

to

35°C)

Storage

temperatures:

0

to

120

0P (-18

to

49°C)

Humidity: 30

to

9096, noncondensing

Physical

Nominal

walking

area:

20 x 55

in

(51

x 140

cm)

Ploor

space

required:

28 x 76

in

(71

x 193 cm)

Walking

surface

height: 5.3

in

(13.5

cm)

Handrail

height:

43

in

(l09

cm)

above

floor

Weight: 400

lb

(l81

kg)

Shipping

weight:

500

Ib

(227

kg)

1.7.2

a65

Specifications

Perf

ormance

Maximum

rated

load: 400

Ib

(l81

kg),

Bruce

Protocol

Belt

speed

range:

1.5

to

15

mph (2.4

to

24

kph),

continuously

adjustable

Elevation

range:

0

to

2596

grade

(0

to

14°)

Power

options:

230 Vac, 1

PH,

60 Hz,

16

A

208 Vac, 1

PH,

60 Hz, 16 A

Minimum

branch

circuit

requirements:

230 Vac -20 A

208 Vac -20 A

NOTE

The

branch

circuit

must

be

dedicated

to

the

Q65 only. Do

not

connect

the

Q65

and

the

Q2000

to

the

same

circuit.

Environmental

Operating

temperatures:

60

to

95°P

(I5

to

35°C)

Storage

temperatures:

0

to

1200P (-18

to

49°C)

Humidity: 30

to

9096,

noncondensing

Physical

Nominal

walking

area:

20

x 65 in

(51

x 165

cm)

Ploor

space

required:

28 x 86 in

(71

x 218 c

m)

Walking

surface

height:

5.3

in

(13.5

cm)

Handrail

height: 44 in

(Ill

cm)

above

floor

Weight: 425 Ib (193 kg)

Shipping weight: 600 Ib (272 kg)

1-3

1.8 OPERATOR MANUAL

A

comprehensive

operator

manual

is

supplied

with

this

equipment.

You

may

order

additional

copies

by

writing

to

Quinton

Instrument

Company, 2121

Terry

Avenue,

Seattle,

Washington 98121;

or

by

calling

our

Customer

Service

Department

at

(800)

426-0347.

1.9 REFERENCES

The following

references

were

used in

the

preparation

of

this

manual:

1.

Operator

manual

for

the

Model Q55/Q65

Medical

Treadmill,

0208-841

2.

Operator

manual

for

the

Quinton Model

Q2000

Stress

Test

Monitor,

0207-840

3.

Service

manual

for

the

Quinton Model

Q2000

Stress

Test

Monitor,

0207-830

4.

Technical

Programmable

0222-830

1-4

manual

for

the

Model 645

Treadmill

Controller,

-

SECTION

2.

OPERATION

2.1 INTRODUCTION

This

section

contains

the

reCeIVing, unpacking

and

inspection,

and

installation

procedures.

2.2

RECEIVING

Before

leaving

the

factory,

the

Q55/Q65

is

thoroughly

inspected

and

tested

for

proper

operation.

To

minimize

shipping

damage,

the

Q55/Q65

is

shipped in a

specially

designed

packing

crate.

The Q55 weighs 500 lb. (272

kg) and

the

Q65 weighs 600

lb.

(272 kg).

Quinton

Instrument

Company's

responsibility

for

this

shipment

ends

upon

delivery

to

the

carrier,

who

assumes

responsiblity

for

safe

delivery.

Therefore,

when

damage

or

loss

to

merchandise

shipped FOB

Factory

is

sustained

in

transit,

claims

must

be

made

by

the

customer

and

directed

to

the

carrier.

When

shipments

are

sent

FOB

Destination,

Quinton

Instrument

Company will

file

the

claim,

provided we

are

furnished with

an

acceptable

inspection

report

from

the

carrier.

If

a

claim

is

disallowed

because

of

failure

to

obtain

the

report,

repair

charges

will

be

billed

to

the

customer.

Upon

receipt

of

the

shipment,

the

containers

or

units

should be

inspected

for

external

damage.

Discrepancies

should be

noted

on

the

waybill, which should

then

be signed by

the

carrier's

agent.

Failure

to

adequately

describe

external

evidence

of

loss

or

damage

on

the

waybill

may

result

in

the

carrier

refusing

to

honor

the

claim.

2.3

UNPACKING AND INSPECTION

The

front

handrail

assembly

and

the

operator

manual

arc

shipped

with

the

Q55/Q65 Medical

Treadmill

as

standard

equipment.

These

items

are

not

listed

on

the

waybill.

1.

Inspect

the

shipping

crate

for

evidence

of

damage.

2. Pull

the

nails

out

of

the

lower

skirting

of

the

crate.

3.

Cut

the

bands.

4.

Lift

the

top

of

the

crate

straight

up

off

the

pallet.

5.

Remove

the

plastic

sheeting.

6.

With

the

aid

of

a

second

person,

lift

the

flat

end

of

the

treadmill

no

more

than

6

inches

off

the

pallet.

Lifting

from

the

wrong

end

of

the

treadmill

or

lifting

more

than

6

inches

off

the

pallet

or

floor

can

damage

the

treadmill.

Limit

switches

on

the

underside

of

the

treadmill

can

break

if

the

treadmill

is

not

lifted

carefully

off

the

pallet.

7.

Ease

one

of

the

front

wheels

off

the

pallet.

8.

Ease

the

second

wheel

off

the

pallet.

9. Roll

the

treadmill

into

the

desired

position.

10.

Install

the

handrail

by

positioning

on

the

two

supports

provided on

the

headframe.

2.4

INSTALLATION CHECKOUT PROCEDURE

WARNING I

Do

not

start

belt

when

anyone

is

standing

on

it.

1. Verify

that

the

service

outlet

voltage

matches

the

voltage

on

the

nameplate.

If

using

the

Q2000

as

the

treadmill

controller,

verify

that

the

treadmill

alld

the

Q2000

are

on

separate

branch

circuits.

2.

Plug

the

Q55/Q65

power

cord

into

the

service

outlet.

2-1

3.

Inspect

treadmill

connector

2A4W2Jl for

damage,

then

connect

the

control

cable

(PIN

13102-001)•

4.

If

using

the

Q2000

as

the

treadmill

controller,

perform

the

following

steps.

If no

error

codes

appear

during

performance

of

the

test,

the

treadmill

is

operational.

a. Ensure

that

the

checkout

procedure in

Section

2.3

of

the

Q2000

Operator

Manual

(P

IN

0207-840) has been

performed.

b. Run

treadmill

calibration

(Steps

1,

2 and 7

of

Section

4.4

of

Q2000

Service

Manual)

and

store

data.

c.

Press MASTER RESET.

d.

If

AUTO

TM

red

LED

is

on, press AUTO

TM

to

return

treadmill

to

manual

operation.

e.

Press

START.

f.

Using speed and grade,

increase

and

decrease

(

......

and".)

controls. Verify

that

the

treadmill

can

be

controlled

manually

2-2

through

the

entire

range

specified for

both speed and grade.

g.

Press

STOP and

verify

that

treadmill

stops.

5. If using Model 645 Programmable

Treadmill

Controller

as

the

treadmill

controller,

perform

the

checkout

procedure in

Section

2.3

of

the

Model 645

Programmable

Treadmill

Controller

Technical

Manual

(PIN

0222-830).

6.

If

using Quinton's Treadmill Controller,

perform

the

following

steps.

a.

Ensure

that

CABLE CO NN

LED

is

on.

b. Press RUN

to

start

the

treadmill.

c.

Using SPEED and

ELEV

(grade)

increase

and

decrease

keys, verify

that

the

treadmill

can

be

controlled

manually

through

the

entire

range specified for

both speed and grade.

d. Press STOP and verify

that

treadmill

stops.

-

SECTION

3.

,

THEORY

OF

OPERATION

3.1 INTRODUCTION

The Q55/Q65 Medical Treadmill uses one

motor

to

drive a walking

belt,

one motor

to

change

the

speed

of

the

walking

belt

and one

motor

to

change

the

grade

(elevation)

of

the

treadmill

..

, The

treadmill

is considered Unit 2

of

Quinton's Q

Series

of

stress

test

products.

It

can

be

controlled

by

any

of

the

following

treadmill

controllers

(the

controller

is

considered Unit

I):

the

Q2000

Stress

Test

Monitor,

the

Model 645 Programmable

Treadmill

Controller

or

Quinton's Treadmill

Controller.

The Q55 and Q65

are

functionally

identical

and use

identical

cable

interfaces

to

the

various

types

of

controllers.

The Q55

operates

between

I and

10

mph

(l.6

and

16

kph), and

the

Q65

operates

between

1.5 and

15

mph (2.4 and

24

kph).

A

drive

motor

provides

the

motive

force

to

turn

the

treadmill

drive pulley and move

the

walking

belt.

An

arrangement

of

shafts,

belts

and pulleys, including a variable speed belt,

allows a moveable

sheave

on

the

input

shaft

to

affect

the

rate

of

rotation

of

the

output

shaft

and

the

walking

belt.

A

reversible

speed change

motor

moves

the

speed change spindle assembly and moveable

sheave

along

the

input

shaft

to

effect

changes

in

the

speed

of

the

walking

belt.

A

tachometer

is linked

to

the

output

shaft

to

monitor

the

speed

of

the

walking belt.

A

grade

motor

turns

a pinion

shaft

to

raise

and

lower

the

headframe

of

the

treadmill

on two

x:ack

gears. A

grade

potentiometer

linked

to

the

pinion

shaft

by a chain and

sprockets

allows

grade

change

to

be monitored.

A printed

circuit

board (PCB) assembly

contains

electrical

and

electronic

elements

necessary

for

motor

control

and

treadmill

controller

interface.

Signals from the

controller

initiate

start/stop,

speed

increase

or

decrese,

grade

change and

grade

direction

change. Feedback signals from

the

tachometer,

grade

potentiometer,

drive

motor,

treadmill

control

cable

and walking

belt

are

routed

through

the

PCB

to

the

treadmill

controller.

Figure 3-1 shows

treadmill

components

and

figure

3-2 shows

the

functional block diagram

for

the

Q55/Q65 Medical Treadmill. Figure

3-2 is

located

at

the

end

of

Section

3.

3.2

PRINTED CIRCUIT BOARD (PCB)

Motor

control

relays, fuses and

electronic

circuits

are

mounted on

the

printed

circuit

board (PCB)

2Al.

Mounted on

the

back of

the

PCB

bracket

are

drive

motor

contactor

2Kl

and

transformer

2Tl.

Connector

2AIPll

on

the

PCB provides

the

interface

between

the

treadmill

controller

(Unit

I)

and

the

treadmill

(Unit 2).

Circuits

on

the

PCB and

electrical

components

are

described

in

this

section

as

they

relate

to

the

treadmill

subassemblies

that

they

control

or

monitor.

3.3

POWER SUPPLY

Line voltage is available

to

treadmill

control

circuits

on

the

PCB when

the

power

cord

is

plugged in. Power

is

routed

directly

through

connectors

2AIPI

and

2AIP6

to

the

motors

and fan. Line voltage is

stepped

down through

transformer

2Tl before

it

goes

to

the

power

supply

circuit

on

the

PCB.

Transformer

2Tl

also provides

electrical

isolation from primary

power.

The power supply

circuit

uses a diode bridge

rectifier,

filters

and voltage

regulators

2Al

VR

I and 2Al

VR2

to

supply

+24

Vac

to

the

power supply monitor

circuit

and

+12

Vdc

and

+23

Vdc

to

other

PCB

circuits.

A

+24

Vac power supply monitor

circuit

uses a

rectifier/filter,

a low

voltage

comparator,

a

pulse

stretcher

and

an

output

driver

to

sense

and

indicate

low line

voltage.

Sensitivity

can

be adjusted

by

the

trip

level

potentiometer.

When .low line

voltage

is sensed,

the

LO

VOLTS

LED on

the

PCB

lights

and

feedback

is

sent

to

the

treadmill

controller.

A

+23

Vdc continuity

test

circuit

on

the

PCB

also monitors

the

treadmill

control

cable

connection

to

ensure

that

there

is no break in

continuity. A CABLE

OK

LED

lights

on

the

PCB unless

there

is a

break

in

the

plug

connection

circuit.

Feedback

goes

to

the

treadmill

controller

if a

break

is

detected.

The cooling fan

2Fl

is on any

time

the

drive

motor

is on.

3-1

3·2

4-----

3---

2----r-

1---+

5 6 7 8 9

10

11

12

13

1 Headframe

2 Tachometer

assembly

3 Drive motor

4 Printed circuit board

5 Grade motor

6 Grade potentiometer

7 V-belts

8 Pinion shaft

9 Cooling fan

10 Input shaft

11

Fixed sheave

12

Variable speed belt

13 Moveable sheave

14 Rack gear

15 Speed change

spindle assembly

16 Speed change motor

17 Timing belt

18 Output shaft

19 Drive pulley

20 Walking belt

..........

----14

---15

--16

------17

--18

19

----20

Figure

3-1

055/0S5

Medical Treadmill Components

Table

3-1

Drive

Motor

Specifications

QUINTON

FREQUENCY

PART

USED

(SINGLE

NUMBER

ON

VOLTAGE

PHASE)

13657-001

Q55

208-240

Vac

60

Hz

13657-002

Q55

110-120

Vac

60

Hz

13657-003

Q55

200-240

Vac

50

Hz

13657-004

Q55

100-120

Vac

50

Hz

14560-001

Q65

208-240

Vac

60

Hz

3.4 DRIVE MOTOR

The

drive

motor

2M2

provides

the

motive

force

to

turn

the

treadmill

drive pulley and

move

the

walking

belt.

Table

3-1

shows

motor

specifications

for

different

motors

used in

the

Q55 and Q65. All

are

continuous duty, single

phase

motors

that

have

internal

overload

protection.

Drive

motor

contactor

2K

1

turns

on

or

shuts

off

the

drive

motor

when a signal from

the

treadmill

controller

energizes

the

motor

contactor

driver

latch

circuit

on

the

PCB.

The

+23

Vdc

motor

contactor

driver/latch

circuit

responds

to

a START

or

STOP signal

from

the

treadmill

controller.

It

uses a

driver

and a

latch

to

keep

the

motor

started

or

stopped.

A signal from

the

motor overload

latch

circuit

or

the

EMERGENCY OFF switch

overrides

any commands

to

start

or

stop

the

motor.

The +

12

Vdc

motor

overload

latch

circuit

uses

optical

isolator

2Al

U5

to

monitor a

thermal

sensor in

the

motor

or

motor

contactor.

When

the

motor

overloads,

the

optical

isolator

actuates

this

circuit

to

disable

the

motor

contactor

driver/latch

circuit.

The

treadmill

will

not

restart

until

the

motor's

thermal

sensor

has cooled and

reset

and

the

START

switch

is

pressed. The

circuit

also

lights

the

MOTOR LED on

the

PCB and sends feedback

to

the

treadmill

controller

if

an

overload

condition

occurs.

The MOTOR LED will

stay

on

until

the

thermal

overload has

cleared

and

the

treadmill

has

been

restarted.

3.5 INPUT SHAFT, OUTPUT SHAFT, BELTS

AND PULLEYS

HP

1

1/2

1

1/2

1

1/2

1

1/2

3

FULL

LOAD LOAD

RPM

CURRENT

1725 7

1/2

amps

1725

15

amps

1425 8

amps

1425 16

amps

3540

15

amps

An

input

shaft,

an

pulleys

function

as

Q55/Q65. Figure

arrangement.

The

describe

shaft,

belt

detail.

3

2

1

Drive motor output

shaft

2 V-belts

3 Machined pulley

4 Input shaft

5 Input shaft fixed

sheave

INSULATIO

N

CLASS

MOUNT

B

Resilient

B

Resilient

B

Resilient

B

Resilient

B

Solid

Base

output

shaft,

belts

and

a transmission on

the

3-3

illustrates

this

following

paragraphs

and pulley

operation

in

7

n

--8

;....--9

;;..---10

r--o----11

-------12

14

13

8 Speed change

~

spindle assembly

15

9 Variable speed belt

10 Timing belt

11

Output shaft

12 Drive pulley

13 Output shaft fixed

sheave

6 Input shaft moveable

sheave 14 Output shaft

moveable sheave

15 Output pulley

Input

Shaft,

Output

Shaft,

Belts

and

Pulleys

7 Input pulley

Figure

3-3

3.5.1

Input

Shaft

The

input

shaft

is

equipped with a machined

pulley,

the

fixed and moveable

sheaves

that

comprise

the

input pulley, and

the

speed

change

spindle assembly. Two V-belts link

the

drive

motor

output

shaft

with

the

input

shaft.

The

input

shaft

turns

at

a

fixed

rate.

The

speed

change

spindle assembly

consists

of

a fork, a

speed

change spindle and a yoke.

As

the

speed

change

motor

turns

the

spindle,

the

fork moves

laterally

on

the

input

shaft

in

tandem

with

the

moveable

sheave.

'The

~unction

.o.f

the

speed

change

spindle assembly

IS

to

posItIon

the

moveable

sheave

on

the

input

shaft.

3.5.2

Output

Shaft

The

output

shaft

is equipped with a spring,

the

moveable and fixed

sheaves

that

comprise

the

output

pulley, and a

timing

pulley, The

output

shaft

turns

at

a

variable

speed depending

on

the

pitch

diameter

of

the

output

pUlley.

3.5.3

Variable

Speed

Belt

A

variable

speed

belt

links

the

input pulley and

the

output

pulley. Because

the

four

sheaves

in

the

arrangement

are

graded,

the

variable

speed

belt

can

be

forced

in

or

out

between

pairs

of

sheaves

to

increase

or

decrease

pitch

diameter.

Spring tension

against

the

moveable

sheave on

the

output

shaft

tends

to

force

the

belt

outward,

increasing

the

pitch

diameter

of

the

output

pulley. When

the

speed

change

fork

moves

the

moveable

sheave

on

the

input

shaft

~nward,

the

pitch

diameter

of

the

input pulley

Increases

and

causes

a

concurrent

decrease

in

the

pitch

diameter

of

the

output

pulley. This

turns

the

output

shaft

at

an

increased

rate.

3.5.4

Treadmill Drive

and

Idler

Pulleys

The

timing

pulley on

the

output

shaft

drives

the

treadmill

drive pulley. The drive pulley, in

turn,

drives

the

walking

belt

and

the

treadmill

idler pulley.

3.6

WALKING

BELT

AND

BELT TRACKING

SWITCHES

The walking

helt

is

the

tread

mill conveyor

belt.

Two

factory-set

limit

switches

on

the

underside

of

the

treadmill

deck

monitor

the

lateral

movement

of

the

walking

belt.

If

the

walking

belt

comes

close

to

touching

an

edge

3-4

of

the

treadmill

drive

pulley,

one

of

the

switches

actuates.

If a

switch

actuates,

the

BELT LED on

the

PCB

automatically

lights

and

a message is sent

to

the

treadmill

controller

that

a hazardous condition

exists.

On

the

Q2000,

the

message TREADMILL BELT

TRACKING ERROR

appears

on

the

screen.

On

the

645 PTC,

the

BELT TRACKING

LED

in

the

SELF TEST box

lights.

On

the

Treadmill

Controller

panel,

the

BELT TRACK LED

lights.

3.7

SPEED CHANGE MOTOR ASSEMBLY

The speed

change

motor

assembly

2A2

consists

of

a

reversible,

spli

t-capacitor

gear

motor

2A2M

I

and

the

speed

change

capaci

tor

2A2CI.

The speed

change

motor

is

linked

by a

chain

and

sprockets

to

the

speed

change

spindle

assembly

that

moves

the

assembly

laterally

along

the

input

shaft.

The speed

change

capacitor

provides

the

phase

shift

necessary

to

start

the

motor. The

motor

cannot

be

operated

unless

the

drive

motor

is

also

on.

Relay

drivers

2Al

V3

on

the

PCB

receive

logic

level

signals

from

the

treadmill

controller

and

deliver

appropriate

voltage

to

the

appropriate

speed

change

motor

relay.

Speed change

motor

relay

2AIK3

controls

speed

increse,

and

speed

change

motor

relay

2AIK4

controls

speed

decrease.

Relay

2AIK3

is

also a lockout

relay

to

prevent

both

relays

from

energizing

simultaneously.

3.8

TACHOMETER ASSEMBLY

Tachometer

assembly

2A3

uses

an

optical

emitter

and a sensor

that

run on

+12

Vdc from

the

PCB. The

sensor

measures

the

rate

of

light

beam

interruptions

caused

by a

rotating

beam chopper. The

resulting

variable

frequency

pulses

are

converted

by

the

tachometer

circuit

into

a dc

voltage

proportional

to

the

speed

of

the

treadmill.

The .

tachometer

circuit

uses

frequency

d.oublmg pulse

amplifier

2AI VI

and

a low pass

fIlter

(also

2A

1V 1)

to

convert

the

variable

frequency

pulses

received

from

the

tachometer.

The

output

of

the

filter

is

l'eferenced

to

+12

Vdc. The

tachometer

current

source

then

changes

the

voltage

signal

to

a

current

signal and

transmits

the

current

signal back

to

the

treadmill

controller.

Tachometer

gain

potentiometer

2AIR13

allows

calibration

of

the

tachometer

current

-

source so

that

1 milliampere

represents

a

rate

of

1 mile per hour.

3.9 GRADE MOTOR

Grade

motor 2Ml

is

a right angle

gear

motor.

The motor

shaft

is linked

to

a pinion

shaft

by

a

chain

and

sprockets. The chain

turns

a

sprocket

on

the

pinion

shaft

to

raise

and lower

the

headframe

of

the

treadmill

on two

parallel

rack

gears.

Relay

drivers

2Al

U3

on

the

PCB

receive

logic

level

signals from

the

treadmill

controller

and

deliver

appropriate

voltage

to

grade

change

relay

2AIKl

or

grade

direction

change

relay

2AIK2.

Grade

change

relay

2AIKl

starts

or

stops

the

grade

motor.

It

works with

relay

2AIK2

to

increase

or

decrease

grade, depending on

the

polarity

of

the

direction

control

windings.

Grade

direction

change

relay

2A

1

K2

controls

the

polarity

of

the

direction

control

windings

in

the

grade

motor. The change in polarity

does not

cause

the

grade

motor

to

turn,

although

it

alters

the

direction

that

the

grade

motor

shaft

will spin.

The.2

second delay

circuit

on

the

PCB delays

the

signal

to

relay

2AIK2

to

ensure

that

the

grade

motor

stops

completely

before

changing

direction.

3.10 PINION SHAFT AND RACK GEARS

The pinion

shaft

and

rack

gears

allow

the

entire

headframe

assembly

to

tilt

for

grade

increase

or

decrease.

The pinion

shaft

rotates

two

sprockets

at

either

end

to

move up and

down a

parallel

pair

of

rack

gears.

Mechanical

stops

at

the

top

of

the

rack

gears

prevent

upward

overtravel,

while

the

deck

prevents

downward

overtravel.

The pinion

shaft

has

a

torque

limiting

device

to

prevent

damage

to

the

grade

motor

if

it

continues

to

turn

at

the

upper

or

lower

limits

of

travel.

3.11 GRADE POTENTIOMETER

Grade

potentiometer

2R

1 monitors

the

rotation

of

the

pinion

shaft

to

indicate

changes

in grade. The

potentiometer

is linked

to

the

pinion

shaft

by a

pair

of

sprockets

and

a

chain. The

potentiometer

runs on +

12

Vdc

from

the

PCB. The

voltage

signal from

the

potentiometer

is changed by

the

grade

current

source

on

the

PCB

to

a

current

feedback

signal

that

goes

to

the

treadmill

controller.

Grade

zero

potentiometer

2AIR29 allows

calibration

of

the

grade

current

source

when

the

grade

angle is

zero

so

that

an

increase

in

voltage

represents

an

increase

in grade.

Grade gain

potentiometer

2AIR30 allows

calibration

of

the

grade

current

source

so

that

a I milliampere change

represents

a

296

change

in grade.

3-5/3-6

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Quinton Q55 User manual

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