Jet BD-920N Manuale utente

JET

EQUIPMENT

TOOLS

OPERATOR

MANUAL

BD-920N

Belt

Drive

Bench

Lathe

(shown

with

optional

stand)

JET

EQUIPMENT

TOOLS,

INC.

WMH

Company

www.jettools.com

P.O.

BOX

1349

Auburn,

98071-1349

e-mail

[email protected]

253-351-6000

Fax

253-939-8001

M-321373

2/02

Important

Information

1-YEAR

JET

offers

one-year

limited

LIMITED

WARRANTY

warranty

this

product

REPLACEMENT

PARTS

Replacement

parts

for

this

tool

are

available

directly

form

JET

Equipment

Tools.

place

order,

call

1-800-274-6848.

Please

have

the

following

information

ready:

Visa,

MasterCard,

Discover

Card

number

Expiration

date

Part

number

listed

within

this

manual

Shipping

address

other

than

Post

Office

box.

REPLACEMENT

PART

WARRANTY

JET

Equipment

Tools

makes

every

effort

assure

that

parts

meet

high

quality

and

durability

standards

and

warrants

the

original

retail

consumer/purchaser

our

parts

that

each

such

part(s)

free

from

defects

materials

and

workmanship

for

period

thirty

(30)

days

from

the

date

purchase.

PROOF

PURCHASE

Please

retain

your

dated

sales

receipt

proof

purchase

validate

the

warranty

period.

LIMITED

TOOL

AND

EQUIPMENT

WARRANTY

JET

makes

every

effort

assure

that

its

products

meet

high

quality

and

durability

standards

and

warrants

the

original

retail

consumer/purchaser

our

products

that

each

product

free

from

defects

materials

and

workmanship

follows:

YEAR

LIMITED

WARRANTY

THIS

JET

PRODUCT.

Warranty

does

not

apply

defects

due

directly

indirectly

misuse,

abuse,

negligence

accidents,

repairs

alterations

outside

our

facilities

lack

maintenance.

JET

LIMITS

ALL

IMPLIED

WARRANTIES

THE

PERIOD

SPECIFIED

ABOVE

FROM

THE

DATE

THE

PRODUCT

WAS

PURCHASED

RETAIL.

EXCEPT

STATED

HEREIN,

ANY

IMPLIED

WARRANTIES

MECHANTABILITY

AND

FITNESS

ARE

EXCLUDED.

SOME

STATES

NOT

ALLOW

LIMITATIONS

HOW

LONG

THE

IMPLIED

WARRANTY

LASTS,

THE

ABOVE

LIMITATION

MAY

NOT

APPLY

YOU.

JET

SHALL

EVENT

LIABLE

FOR

DEATH.

INJURIES

PERSONS

PROPERY

FOR

INCIDENTAL,

CONTINGENT,

SPECIAL

CONSEQUENTIAL

DAMAGES

ARISING

FROM

THE

USE

OUR

PRODUCTS.

SOME

STATES

NOT

ALLOW

THE

EXCLUSION

LIMITATION

INCIDENTAL

CONSEQUENTIAL

DAMAGES,

THE

ABOVE

LIMITATION

EXCLUSION

MAY

NOT

APPLY

YOU.

take

advantage

this

warranty,

the

product

part

must

returned

for

examination,

postage

prepaid,

authorized

service

station

designated

our

Auburn

office.

Proof

purchase

date

and

explanation

the

complaint

must

accompany

the

merchandise.

our

inspection

discloses

defect,

JET

will

either

repair

replace

the

product

refund

the

purchase

price,

cannot

readily

and

quickly

provide

repair

replacement,

you

are

willing

such

refund,

JET

will

return

repaired

product

replacement

JET’S

expense,

but

determined

there

defect,

that

the

defect

resulted

from

causes

not

within

the

scope

JET's

warranty,

then

the

user

must

bear

the

cost

storing

and

returning

the

product.

This

warranty

gives

you

specific

legal

rights,

and

you

have

other

rights,

which

vary,

from

state

state.

JET

Equipment

Tools

•

P.O.

Box

1349,

Auburn,

98071-1349

•

(253)

351-6000

WARNING

Read

and

understand

the

entire

instruction

manual

before

operating

machine

Always

wear

approved

safety

glasses/face

shields

while

using

this

machine

Make

certain

the

machine

properly

grounded

Before

operating

the

machine,

remove

tie,

rings,

watches,

other

jewelry,

and

roll

sleeves

above

the

elbows

Remove

all

loose

clothing

and

confine

long

hair

NOT

wear

gloves,

Keep

the

floor

around

the

machine

clean

and

free

scrap

material,

oil

and

grease

Keep

machine

guards

place

all

times

when

the

machine

use

removed

for

maintenance

purposes,

use

extreme

caution

and

replace

the

guards

immediately

NOT

over

reach

Maintain

balanced

stance

all

times

that

you

not

fall

lean

against

blades

other

moving

parts

Make

all

machine

adjustments

maintenance

with

the

machine

unplugged

from

the

power

source

Use

the

right

tool

Don't

force

tool

attachment

job

which

was

not

designed

for,

10,

Replace

warning

labels

they

become

obscured

removed

11,

Make

certain

the

motor

switch

the

OFF

position

before

connecting

the

machine

the

power

supply

12,

Give

your

work

undivided

attention.

Looking

around,

carrying

conversation,

and

"horse-play’

are

careless

acts

that

can

result

serious

injury.

Keep

visitors

safe

distance

from

the

work

area

Use

recommended

accessories;

improper

accessories

may

hazardous

Make

habit

checking

see

that

keys

and

adjusting

wrenches

are

removed

before

turning

the

machine.

Never

attempt

any

operation

adjustment

the

procedure

not

understood.

17.

Keep

fingers

away

from

revolving

parts

and

cutting

tools

while

operation.

Keep

belt

guard

place

and

working

order

Never

force

the

cutting

action

not

attempt

adjust

remove

tools

during

operation.

21.

Always

keep

cutters

sharp

22.

Always

use

identical

replacement

parts

when

servicing.

Failure

comply

with

all

these

warnings

may

cause

serious

injury

22.

WARNING:

Some

dust

created

power

sanding,

sawing,

grinding,

drilling

and

other

construction

activities

contains

chemicals

known

cause

cancer,

birth

defects

other

reproductive

harm

Some

examples

these

chemicals

are

•

Lead

from

lead

based

paint

•

crystalline

silica

from

bricks

and

cement

and

other

masonry

products,

and

•

arsenic

and

chromium

from

chemically-

treated

lumber.

23.

Your

risk

from

those

exposures

varies,

depending

how

often

you

this

type

work.

reduce

your

exposure

these

chemicals:

work

well

ventilated

area,

and

work

with

approved

safety

equipment,

such

those

dust

masks

that

are

specifically

designed

filter

out

microscopic

particles

Table

Contents

Warnings.1

Table

Contents.2

Specifications.3

Contents

the

Shipping

Container.3

Set-Up

and

Preparation

for

Operation.3

General

Description.4-6

Controls.7

Operation.8-13

Adjustments.14-16

Electrical

Connections.16

Lubrication

Schedule.17

Parts

Lists

and

Breakdowns.18-41

Wiring

Diagram.42

CAUTION

The

three

jaw

chuck

and

the

face

plate

have

set

screw

their

flanges

that

secures

them

the

threaded

spindle.

Before

removing

the

three

jaw

chuck

the

faceplate,

remove

the

set

screw

completely

from

the

flange.

Failure

remove

the

set

screw

may

cause

damage

the

threads

the

spindle.

When

installing

either

the

three

jaw

chuck

the

faceplate,

tighten

the

set

screw

firmly

prevent

the

chuck

the

faceplate

from

coming

off

the

spindle

during

operation.

The

specifications

this

manual

are

given

general

information

and

are

not

binding.

JET

Equipment

and

Tools

reserves

the

right

effect,

any

time

and

without

prior

notice,

changes

alterations

parts,

fittings,

and

accessory

equipment

deemed

necessary

for

any

reason

whatsoever.

Specifications:

Stock

No.

Capacities:

Swing

Over

Bed.

Swing

Over

Cross

Slide.

Distance

Between

Centers.

Headstock:

Hole

Through

Spindle.

Spindle

Nose.

Taper

Spindle

Nose.

Spindle

Bearing

Type.

Number

Spindle

Speeds

Range

Spindle

Speeds.

Gear

Box:

Number

Longitudinal

Feeds

Range

Longitudinal

Feeds..

Number

Inch

Threads.

Range

Inch

Threads.

Number

Metric

Threads.

Range

Metric

Threads.

Leadscrew.

BD-920N

Compound

and

Carriage:

.321373

Toolpost

Type.Single

and

4-Way

Maximum

Tool

Size.1/2"

1/2"

.9"

Maximum

Compound

Slide

Travel.1-7/8"

.5-5/16"

Maximum

Cross

Slide

Travel.5"

.20"

Maximum

Carriage

Travel.16"

Tailstock:

.25/32"

Tailstock

Spindle

Travel.1-9/16"

1-1/2"

T.P

Diameter

Tailstock

Spindle.1-1/16"

.MT-3

Taper

Tailstock

Spindle.MT-2

Tapered

Roller

Miscellaneous:

Steady

Rest

Capacity.1/4"'-1-1/8"

.130-2000

RPM

Rest

Capacity.1/4"-1-7/8"

Length

Bed.32"

.27

Width

Bed.4-1/2"

.005"-

011"

Height

Bed.6-5/8"

.27

Overall

Dimensions..

37-1/2"Lx19-3/4"Wx15-3/4"H

.8-56

P.l

Main

Motor.3/4

HP,

Ph.,

115V

.11

Net

Weight

(approx.).235

lbs.

.05-3

Shipping

Weight

(approx.).250

lbs

9/16"x16

T.P.I

Contents

the

Shipping

Container

Toolbox

Contents

Lathe

Four-Jaw

Independent

Chuck

Three-Jaw

Universal

Chuck

Faceplate

Four

Way

Tool

Post

Operator's

Manual

Warranty

Card

Steady

Rest

Single

Tool

Holder

Chuck

Jaws

Chuck

Keys

Cross

Point

Screwdriver

Flat

Blade

Screwdriver

pcs

Hex

Wrench

Set

8/10mm

Open

End

Wrench

MT-2

Center

MT-3

Center

28T

Gear

30T

Gear

36T

Gear

42T

Gear

45T

Gear

80T

Gear

Set

and

Preparation

for

Operation

avoid

twisting

the

bed,

make

sure

the

location

which

the

lathe

bolted

absolutely

flat

and

level.

Place

machinist’s

level

the

bedways

and

check

for

level

side

and

front

rear

stand

mounted,

the

stand

must

fastened

the

floor.

Remove

rust

protected

from

all

surfaces

with

kerosene,

diesel

oil,

mild

solvent.

not

use

gasoline,

paint

thinner,

lacquer

thinner

These

will

damage

painted

surfaces.

After

cleaning,

wipe

with

clean,

dry

cloth

and

cover

all

machined

surfaces

with

light

film

machine

oil.

General

Description

Lathe

Bed

The

lathe

bed

made

high

grade

iron.

combining

high

cheeks

with

strong

cross

ribs,

bed

low

vibration

and

rigidity

produced

(Fig.

The

two

precision-

ground

V-slideways,

re-enforced

heat

hardening

and

grinding,

are

and

accurate

guide

for

the

carriage

and

tailstock.

The

main

motor

mounted

the

rear

the

bed.

(Fig.

Headstock

The

headstock

cast

from

high

grade,

low

vibration

cast

iron

bolted

the

bed

with

four

screws

and

uses

four

adjusting

screws

for

alignment.

the

head,

the

large

main

spindle

mounted

two

precision

taper

roller

bearings.

The

hollow

spindle

Morse

taper

with

25/32"

bore.

(Fig

quick

change

the

belt

can

accomplished

easing

the

tension

the

idler

(Fig

protect

the

machine

against

accidental

damage,

clutch

fitted

the

reduction

pulley

the

130

R.P.M

speed.

Carriage

The

carriage

made

from

high

quality

cast

iron.

The

sliding

parts

are

smooth

ground.

(Fig.

They

fit

the

bed

without

play.

The

lower

sliding

parts

can

easily

and

simply

adjusted.

The

cross

slide

mounted

the

carriage

and

moves

dove

tailed

slide.

Play

the

cross

slide

may

adjusted

with

the

gibs.

Move

the

cross

slide

with

it's

conveniently

positioned

handwheel.

There

graduated

collar

the

handwheel.

One

graduated

mark

equals

0.0254

millimeters

0.001

inches.

(Fig.

The

top

slide,

mounted

the

cross

slide,

can

rotated

360°.

The

top

slide

and

the

cross

slide

travel

dove

tailed

slides

and

have

gibs,

adjustable

nuts,

and

graduated

collars.

four

way

tool

post

fitted

the

top

slide.

The

four

way

tool

post

can

converted

single

tool

holder

with

parts

enclosed

the

tool

box.

(Fig.

For

accurate

facing

operations,

the

carriage

can

locked

tightening

the

hex

socket

cap

screw.

(A,

Fig.

Apron

The

apron

mounted

the

bed.

half

nut

fitted

the

apron.

The

half

nut

gibs

can

adjusted

from

the

outside.

The

half

nut

engaged

the

half

nut

lever.

rack,

mounted

the

bed,

and

pinion

operated

handwheel

the

carriage

allow

for

quick

travel

the

apron.

(Fig.

Fig.

Tailstock

The

tailstock

slides

way

and

can

clamped

any

location.

(Fig

The

tailstock

has

heavy

duty

spindle

with

Morse

taper

No.

socket

and

graduated

scale.

The

spindle

can

clamped

any

location

with

clamping

lever.

The

spindle

moved

with

handwheel

the

end

the

tailstock.

Leadscrew

The

leadscrew

mounted

the

front

the

machine

bed.

connected

the

gear

box

the

left

for

automatic

feed

and

supported

bearing

both

ends.

The

nut

and

set

screw

the

right

end

are

designed

take

play

the

leadscrew.

(Fig.

10)

Gear

Box

The

gear

box

made

from

high

quality

cast

iron

and

mounted

the

left

side

the

machine

bed

(Fig.

11)

The

motor

drives

through

nine

changeable

speeds.

Always

raise

idler

the

disengaged

position

when

changing

speeds.

(A,

Fig.

12)

Drive

and

Electrical

Equipment

The

main

drive

provided

single

phase,

A.C.

motor

mounted

the

rear

the

lathe

bed.

(B,

Fig.

12)

The

forward-reverse

switch

(C,

Fig.

12)

mounted

the

top

the

electric

box.

The

motor

condenser

also

contained

this

box.

Fig.

Controls

Forward/Reverse

Switch

V-Belt

Tension

Lever

Longitudinal

Travel

Handwheel

Half-Nut

Lever

Cross

Slide

Handwheel

Top

Slide

Handwheel

Longitudinal

Lock

Screw

Tool

Post

Tailstock

Spindle

Handwheel

10.

Tailstock

Spindle

Clamping

Lever

11.

Tailstock

Locking

Screw

12.

Tailstock

Off-Set

Adjustment

13.

End

Gear

Cover

Lock

Screw

14.

Automatic

Feed

Lever

15.

Gear

Box

Quick

Change

Lever

Operation

Tool

Set-Up

The

cutting

angle

correct

when

the

cutting

edge

line

with

the

center

axis

the

work

piece.

The

correct

height

the

tool

can

achieved

comparing

the

tool

point

with

the

point

the

center

mounted

the

tailstock.

The

correct

tool

height

can

obtained

using

shims

under

the

tool.

(Fig.

13)

When

turning,

the

tool

has

tendency

bend

under

pressure.

For

best

results,

tool

overhang

should

kept

minimum

3/8"

less.

Manual

Turning

Apron

travel,

cross

travel,

and

top

slide

handwheels

can

operated

for

longitudinal

cross

feeding.

(Fig.

14)

Fig.

Longitudinal

Turning

with

Auto-Feed

Three

automatic

feeds

are

available.

(Fast

0.011

"/rev.,

medium

0.007"/rev.,

slow

0.005"/rev.)

These

can

set

altering

the

gear

wheel

combinations

(See

table

Fig.

15)

moving

lever

(A,

Fig.

16)

upward,

the

automatic

feed

engaged.

■

-fK

a-J

120-J

b-.

Lever

Feed

.005

.007

.011

Fig.15

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