Wadkin Bsw 20 inch User manual

,

20

l;

(~·S·l,v

'..

. I

www.DaltonsWadkin.com

CIRCULAR

SAWBENCH

TYP~

20'B§:tI

..

RIVING KNIFE ADJUSTABLE

TO SUIT SIZE

OF

SAW AND

RISES AND FALLS WI .SAW.

"

REMOVABLE GAP

PLATE WITHFELT

&WOOD PACKING

PIECES.

MACHINE

REFERENCE

NUMBER

PLATE~

MICRO

~DJUSTMENT

SAW RISE & FALL

, j LOCK.

I

REAR COVER GIVES

ACCESS TO BELTS.

MOTOR &PULLEYS.

www.DaltonsWadkin.com

2

SECTION A

SECTION B

Sl£CTION C

SECTION D

SECTION E

SECTION A

SECTION B

SECTION C

SECTION D

SECTIONS

SPECIFICATION

INSTALLATION

DESCRIPTION &

OP~{ATION

MAINTENANCE

SPARE PARTS

LIST

ILLUSTRATIONS·

FIG

A~

5QOmm

BSW

CIRCULAR

SAW

BENCH

FIG

B~

WIRING

DIAGRA.H

(3

PHASE)

FIG

B2

FIG

C~

FIG

C2

FIG

C3

FIG

c4

FIG

C4A

FIG

CS

FIG

c6

FIG

C7

FIG

cB-Cll

FIG

Dl

FIG

D2-D3

FIG

D4-D12

FIG

D13

FOUNDATION

PLAN

CANTING

FENCE

CONTROLS

FENCE

ALIGNMENT

POINTS

RIVING KNIFE DETAIL

R1SE

AND

FALL

CONTROLS

RIVING KNIFE DETAIL

MITRE

FENCE

MITRE FENCE STOP

ROD

POSITIONS

SAW

PACKINGS

OPERATION

OF

OPTIONAL

FEATURES

SA\{

SPINDLE ASSEHBLY

BELT

TENSIONING

SAW

MAINTENANCE

LUBRICATION

j

www.DaltonsWadkin.com

3

SECTION

A

SPECIFICATION

Maximum

diameter

of

saw-----------------------------------------

20"

500

mm

Maximum

saw

proj

ection

------------------------

7"

175

mm

Size

of

table

-------------------------------------------------

36" x 38"

915

x 965

mm

Table

height------------------------------------------------

34"

865

mm

Max.

distance

saw

to

fence

-----------------------

600

mm

Fence

dimensions-----------------------------------------------

17" x

6"

430 x

150

mm

Fence

cants

up

to----------------------------------------------

45°

Rise

and

fall

of

saw

spindle-------------------------------

100

mm

Speed

of

saw

spindle------------------------------------------

2200 rpm

Horse power

of

motor-----------------------------------------

7!

Diameter

of

saw

bore--------------------------------------

30

mm

Diame

ter

of

driving

------------------------------

12

mm

Net

weight---------------------------------------------------

924

lb

420

kg

Gross

weight---------------------------------------------------

1230

lb

560

kg

Shipping

dimensions---------------------------------------------

46

cu.ft.

1.3

m3

www.DaltonsWadkin.com

4 SECTION B

•

Installation:-

Remove

protective

anti-rust

coating

£rom

bright

parts

by

applying

a

cloth

soaked

in

paraf£in

or

other

solvent.

Wiring,,:

-

The

motor

and

control

gear

have

been

wired

in

be£ore

despatch,

there£ore

all

that

is

required

to

be

done

is

to

connect

the

mains

supply

to

the

starter,

or

isolator

where

£itted.

POINTS

TO

NOTE

WHEN

CONNECTING

TO

POWER

SUPPLY.

1 -

Check

voltage,

phase

and

£requency

2 -

It

is

important

that

the

correct

cable

is

used

to

deliv~r

the

correot

voltage

to

the

starter.

RUNNING

ON

LOW

VOLTAGE

WILL

DAMAGE

MOTOR.

(SEE

LIST).

j

Check

main

line

fuses

are

of

correct

capacity.

4 -

Connect

line

leads

to

correct

terminals

(SEE

WIRING DIAGRAM).

5 -

Check

all

connections

are

sound.

6 -

Check

spindle

rotates

in

correct

direction.

If

not

reverse

any

two

o£

the

line

lead

connections.

FAILURE

TO

START:-

1

Fuses

have

blown

or

have

not

been

£itted.

2

Isolator

switch

ha~

not

been

closed.

3 -

Lock

o£f

or

stop

button

(when

fitted)

has

not

been

released.

4 -

Supply

not

available

at

machine.

STOPPAGE

DURING

OPERATION & FAILURE

TO

RESTART:-

I -

Overloads

have

tripped.

I£

hand

re-set,

set

by

pressing

button.

If

automatic

they

will

re-set

after

a

short

period.

2 -

Fuses

have

blown.

VOLTAGE.

PHASE.

CYCLES

l!!:

S.W.G.

TINNED

COPPER WIRE.

220

3

50

5-S

17'

340/420

j

50

11

.20

200/250

1

50

11

1-+

220

j

60

u

17

400/550

3

60

JI

21

,Foundat:ion:-

~

5S

32

102

55

29

The

machine

should

be

lev~lled'and

bolted

down

firmly_

For

mounting

into

concrete.

150

to250square

holes

should

be

cut

in

the

rloor

and

rag

bolts

fitted.

after

which

the

holes

should

be

run

with

cement.

For

mounting

on

wood

floors

coach

bolts

will

be

found

adequate.

(see

Fig.

82.)

www.DaltonsWadkin.com

-

.t3BOOK

RT3

STARJER£THREE

PHhS

E

DIAGRAM).·

5

SUP,PLY

r

L1

L2

.L3'

LINK'X'

BROWN

L1NK'T' I

ORANGE

,A

B

C,

•

MOTOR

IU!,",OTI!

"STAftT·STO

..

••

IIUTTONS

FOR

ANY

OTHER

TYPE

OF

STARTING

SEE

SEPARATE

WIRING

DIAGRAM

ENCLOSED

INSIDE

STARTER

BOX.

FIG

BI

4-16mm

/Diaholes

584mm.

I I

I

!'\ --

f-

I'

~

j.I

\;

~

-

546

mm

www.DaltonsWadkin.com

6

SECTION C

CANTING &

RIP

FENCE

CONTROL~,

QUICK

ADJUSTMENT;-

•

The

£ence

slides

on

a

round

bar

with

a

rule

incorp-

orated

into

it.

To

adjust

the

fenee

follow

the

under

mentioned

proceedure:-

~

L

Unlock

lever

"A:

and

screw'B

(Fig.

C.1.)

2.

Slide

the

fence

along

the

bar

until

the

req~ired

dimension

is

indicated

against

the

pointer

on

the

£ence

bracket.

3.

Lock

lever

'A"

£irm1y

to

secure

in

position.

FINlD

ADJVS1HENI:-

After

adjusting

the

fence

by

the

above

method

provision

is

made

for

precise

setting

by

Gperating

the

fine

adjust-

ment

reature.

To

operate

follow

under

mentioned

proceedure.

1.

Ensure

lever

'A'

is

UNLOCKED

and

screw'B"is

LOCKED

£irm1y.{Fig.C.1.)

2.

Turn

knurled

hand

screw'

'c'

in

direction

required

in

order

to

draw

the

fence

along

the

rule

bar

to

or

away

from

the

saw

and

to

the

required

setting.

3.

Lock

lever

'K

firmly.

CANTING;-

.

To

cant

fence

follow

under

mentioned

proceedure

(Fig.C.1.)

1.

Unlock

tevor'D'and

allow

fence

to

pivot

over

to

required

angle.

2.

Unlock

lever'E'a11owing

fence

plate

to

drop

down

until

the

lower

edge

of

the

plate

lies

flat

on

the

table

surface.

" "

3.

Lock

levers

D

and

E

firmly.

FENCE

PQSIIIQltINq:-

The

fence

plate

is

designed

to

slide

along

the

table

in

order

to

compensate

for

di£ferent

sizes

of

saws

which

may

be

used.

By

unlocking

1.v.r

'E'

the

pla

te

mayb'e

slid

alongadovetail

slot

in

the

back

of

the

fence

to

the

required

position.

after

which

locking

lever'E'Yill

fix

the

fence

firmly

in

place.

N01'E:-J'br

crosscutting

swing

fence

over

the

rule

bar

to

clear

the

table

FENCE SETTING

AND

ALIGNING:-

,.I

On

despatch

'from

the

works

the

movements

o£

the

fence

have

been

finely

adjusted

for

accurate

cutting

by

the

provision

o£

the

setting

screws

at

points

F.G.H.I.

(FIG

C2).

These

adjustments

have

seperate

uses,

and

should

only

be

re-set

to

compensate

for

wear

which

may

take

~

place

from

constant

use.

The

seperate

uses

of

these

points

are

as

outlined

underneath:-

POINT

F.,-

is

an

eccentrically

turned

centre

which

allows

the

fence

to

be

set

paraleli

to

the

say,

or

to

be

set

in

or

out

as

required.

POINT G;-

is

a

true

centre

which

allows

slackness

to

be

removed

between

centres

F

and

G.

POINT

H:-

is

a

jacking

point

which

prov1des

a

positive

stop

which

will

not

allow

the

fence

to

be

pulled

up

further

than

90

degrees

to

the

table

when

set

correctly.

POINT 1t -

is

also

a

jacking

point

which

brings

centres

F

and

G

parallel

to

the

table

for

true

canting

action

of

the

fence.

NOTFJ-

SET ALIGNMENT

ONLY

WITH

CENTRE

F.

DO

NOT

PACK

BETWEEN

BACK

PLATE

AND

FENCE

AS

THIS

CAN

CRACK

THE

CASTINGS.

www.DaltonsWadkin.com

7

FIG.Cl

IGC2

www.DaltonsWadkin.com

8

RISE

AND

FALL CONTROLS:-

By

turning

handwheel

'J'

(fig.

04

)

the

saw

may

be

raised

or

lowered

between

the

maximum

and

minimum

position

as

given

in

section

'A'

specificati~n.

Under

no

circumstances

shoulrl

this

dimension

be

varied.

It

i.

imp~~tant

after

operating

the

rise

and

fall

that

lever

handle

'K'

is

loc.ked

firmly

before

running

the

saw.

The

rise

and

fall

handwheel

is

connected

through

pivoted

yolks

at

~ints

A.

&

B.

(FIG

04.)

At

the

handwheel

end

of

the

screw

a

thrust

race

C

is

fitted

to

give

free

ro~ation

when

in

use.

It

is

therefore

important

that

th~

pivots

and

screw

are

cleaned

and

luhricated

regular-

ly

a~d

that

the

tirust

race

is

oiled

according

to

the

maintenance

schedule.

RIVING

KNIFE

PLATE:-

The

riving

knife

plate

is

situated

behind

the

saw

in

the

saw

com-

partment

ID'

(fig.

C4A}

and

allows

the

riving

knife

to

rise

and

fall

with

the

saw

at

a

set

clearance

to

the

saw

teeth.

It

is

important

that

the

area

surrounding

the

radial

slot

cut

in

the

plate

be

kept

clean

and

well

lubricated

to

give

free

movement.

RIVING

KNIFE,HOLDER DETAIL

The

riv1ng

knife

is

supplied

in

the

inverted

position.

:fit

upright

adopting

the

f'ollowing

proceedure:

-(figC3)

Remove

and

1.

~it

knife

into

groov~d

oacking

piece

'E'

and

bolt

up

to

solid

pack-

ing

piece

'P"

with

the

lOr:nm

nLJ.ts'G'

provided.

2.

With

saw

in

place

set

knife

to

clear

around

saw

teeth

approximatelv

~"

(6mm)

and

lock

firmly

in

place

with

nuts

'G'.

.

).

If

the

knife

is

not

in

line

with

the

saw,

partially

slacken

nuts

'G'

and

jeck

packing

piece

'F'

out

with

grub

screws

'H'

until

the

knif'e

has

equal

overhand

either

side

of'

the

saw

blade.

Lock

nuts

'G'

firmly.

NOTE:-

BE~ORE

RUNNING, ADJUST

SAW

GUARD

TO

GIVE

MAXIMUM

PROTECTION

AND

TO

CLEAR

SAW

BLADE.

DO

NOT

RUN

MACHINE

WIT!iOt!l'

GUARD

IN

POSITION.

IMPORTANT:-

ENSURE

THAT

RIVING

KNIFE

BLADE

IS

CORRECT

IHICKNl:tSS

FOR

SA\l USED

, H

'(:J\

® .-

~

-

(@@

:\1

E

I H

\

.Riving Knife

i

)

www.DaltonsWadkin.com

9

FIGC4 '

FIGC4A

www.DaltonsWadkin.com

10

JtIOUNTING SAWBLAnES : -

When

mounting

saws

the

undermentioned

proceedure

should

be

fol1owed:-

1.

Isolate

machine

2.

Remove

table

insert

and

raise

the

saw

spindle

housing

into

the

top

position.

J.

Remove

spindle

nut

(left

hand

thread)

and

front

saw

flange

from

spindle.

4.

Select

blade

required

depending

on

type

of

work

which

is

to

be

done.

Check

the

blade

is

in

good

condition

and

free

from

dirt,

sawdust

and

gum.

especially

where

it

will

be

gripped

by

the

saw

flange.

Mount

saw

on

the

spindle

checking

that

the

face

o£

the

back

saw

flange

is

clean

and

that

the

saw

bmre

and

hole

centres

fit

correctly

onto

those

on

the

flange.

'5.

Check

that

the

saw

teeth

point:

towards

the

front

of

the

me

chine

be-

fore

replacing

the

flange

and

locking

UP

firmly

with

the

spindle

nu~.

IMPOrtTANT:-

ENSURE

SPINDLE

HUNS

IN

CORRECT

DIRECTION,REFER

TO

S~CTIQ~

.JL

(ELECTRICS

L

NOTE:-

IF

THE FLANGE

OR

SAW

FACES ARE

NOT

CLEAN

THIS

CAN

CAUSE VIBRATION

DUE

TO

THE

SAW

RUNNING

OUT-OF-TRUE.

NITHE

FENCE

(llg......Q

5)

-f

EXTRA, )

The

mitre

fence

is

fitted

into

the

grOOVA

provided

on

the

saw

t~blet

which

should

he

kept

clean.

A

scale

is

provided

to

indicate

accurate

setting,

and

a

positive

stog

'A'

is

incorporated

in

the

scale

to

give

quick

setting

at

90

0

and

45

to

the

saw.

The

p1sstic

handwhee1

'B'

locks

the

mitre

fence

firmly

in

any

position.

Accurate

repetitive

cutting

can

be

obtained

by

use

of

the

stop

rods

(:fig.

CS.)

-,

- I

The

rods

are

held

in

the

:fence

with

the

thumbscrews

'C'

and

the

stop

rods

by

the

two

clamps

'D!

Tb

adjust

the

stop

rods

slacken

clamps

'Cl

and

'D'

and

slide

the

rods

into

the

position

required

as

illustrated

in

)

(:fig.

C6.)

www.DaltonsWadkin.com

FfGCS

11

MITRE

SlOT

www.DaltonsWadkin.com

12

SAW

PACKING.

It

is

usual

to

provide

a

saw

blAde

with

some

form

of

packing,

but

it

is

not

intended

that

this

packing

be

used

as

a

guide

for

buckled

or

out-of-true

saws.

The

idea

of

£itting

packing

pieces

into

the

table

and

gap

plate

is

to

steady

the

saw,

but

it

should

he

noted

that

the

packing

must

not

be

tight

as

this

will

generate

heat,

resulting

in

a

consequent

loss

of

tension

in

the

blade.

The

arrangement

of

the

saw

packings

are

in

such

a

way

that

a

hard-

wood

mouthpiece

of

a

length

extending

beyond

the

depth

of

the

saw

teeth

retains

the

felt

packing

pieces

in

place.

Also

wood

strips

secured

to

the

underside

of'

the

table

and

to

the

front

of

the

gap

pla

te

support

the

felt

in

position.

At

the

rear

of

the

gap

plate

and

table

similar

wood

strips

close

the

saw

gap

and

provide

a

guide

f'or

the

saw.

(SEE

DIAGRANS

OPPOSITE.

)

It

should

be

noted

that

af'ter

some

time,

the

packings

will

need

to

be

renewed.

and

should

not

be

allowed

to

f'al1

into

bad

condition.

Tbe

provision

of

the

felt

inserts

allow

application

of

a

small

amount

of

lubricating

oil,

which

not

only

cleans

the

saw,

but

also

re-

duces

heat_and

burning

whilst

running.

It

is

theref'ore

important

that,

at

every

opportunity,

the

felt

pieces

are

lubricated.

NOTE;-

REPLACE!oLENT

LENGTHS

OF

FELT

12

x

11

x

100

mm

..

J

I

J

www.DaltonsWadkin.com

I

I~

L_

Saw

~

--..,

I

~~~======~-+~~-:

H~

I

-h-'-tH-t_tt)+.~

I

Felt--==F=======Cldtl

I

tt11

. I

FIGC

~arrl

..

.ood

-

-lnOUthpiece

I

S.,w

t

Saw

SECTION

AA

Saw

Felt

Screw

SECTION

'\

a~

Saw

SECTla~

" ,

13

/f

j

UI

I

www.DaltonsWadkin.com

1+

.

PILLAR

SAW

GUARD

To

raise

and

lower

the

guard,

unlock

lever

'A'

anrlturn

handle

'B'

(FIG

CS)

To

poeition

the

guard

on

centre

,,,itll

the

sa,,,,

unlock

lever

'Cl

and

slide

the

guard

pillar

'D'

until

the

guard

is

in

the

correct

position.

To

centralize

the

guard

to

clear

saw

and

riving.

kni"fe,

unlock

lever

'E'

and

slide

j!'uarrl

back

or

fOl"l.,arn

aJor:g

bar

'F'

until

correctly

positioned.

To

~a{n

access

to

saw,

the

guard

cover

will

hinge

up

and

over

to

reveal

blade.

EXTRA

EQVIPMENTi-

SPINDLE

BRAKE

:-

This

device

is

opera

ted

"from

the

brake

lever

lA'

situated

the

rise

and

rall

handwheel.

It

is

connected

to

the

brake

pad

by

means

0 f a

ca

ble

'B'

leading

rrom

the

opera

t

ing

lever

f

and

is

spring-loaded

to

relieve

tension

when

hand

pressure

is

reljeved.

To

ten~ion

the

cable,

turn

the

knurled

nut

'Cl

on

the

lever.

Where

excessivp

slackness

is

to

be

removed,

unlock

the

grub

screw

'D'

on

the

pill~r

ut

the

spindle

end

and

pull

cable

through,

re-lock

grub

screw

..

nd

tens

i.on

cable

as

ment

ioned

above

with

knurled

screw.

'Yhen

re-

placing

brake

pad

it·

ie

important

that

new

rivets

are

used

and

that

the

rivet

heads

are

below

the

surrace

or

the

oad

material.

Do

not

allow

brake

pad

to

wear

down

to

rivets

as

thi~

will

score

the

surlace

of"

the

:!Special

pulley.(FIGC11)

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15

FIG

CB

:-:

••

-

!-~iilli!~-

38mm

Rad

38mm

",/

Size of

cut-out

Rad

~------------560mm----------~

FIGCIO

B

FIG

Cl

I

to suit'sefand

position

of

wobble

saw unit.

\

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16

SECTION

D.

-

MAINTENANCEj-

During

the

operating

life

of

the

sawbench

it

may

be

found

necessary

to

replace

worn

or

damaged

pArts

(i.

e.

ball

races.)

To

undertake

this

proceedure

follow

the

undermentioned

instructions.

(SEE

FIG

D

1.)

1.

,I,§QMIE

MA

CHINE_EJ~IEcrRl.CALLX

BEFQHE

A

TTlillW

NG

ANY

WORK",;

2.

REMOVE GAP

PLATE,

SAW

AND

SAW

SPINDLE

FRONI'

AND

REAR COVERS

FROt-{

Tal':

J.

4.

5.

6.

7.

8.

10.

MACHINE.

SLACKEN

AND

REMOVE

V-ROPES

FROM

PULLEYS

AND

REMOVE TURNBUCKLE AND

TENSION

STUDS AFTER

PACKING

MOTOR

UP

AS

SHOWN

IN

(FIG

0.2

..

)

'/IND

SAW

CARRIAGE

INTO

MIDWAY

POSITION.

REI-lOVE

COUNTERSUNK SCREW

AND

WASHER

'A'

AND

SLACKEN GRUB SCREWS

'R

t

IN

PULLEY

'C'

AND

REMOVE.

REMOVE

KEY

'D'

~~D

DIST~~CE

PIECE

'E'.

REHCVE

CIRCLIP

'Ft

AND

}fOTOR

TENSION

BRACKET I GI

AND

UNSCREW

AND

REMOVE

DUSTCAP

'H'.

WORKING

AT

THE

FRONT

OF

THE

SAW

SP1NDLE.

REMOVE NUT

III,(L.H.THREAD)

AND

SA

W FLANGE I J I •

UNSCREW

SAW

FLANGE

'Kt

(L.B.THREAD.)

RENOVE

RIVING

KNIFE

PLATE*AND

LINK,

A.~D

UNSCREW

AND

REHOVE DUST

CAP

'L'

.

11.

PLACE A

WOOD&~

DRIFT

ON

THE

PULLEY

END OF THE

SPINDLE

AND

DRIVE

TIlE

SHAFT THROUGH

THE

HOUSING.

BY

DOING

THIS

THE

SPINDLE

WILL

~~~RGE

FROM

THE HOUSING

WInl

TIlE

SAW

ENT)

BEARING

ON

IT.

DRIVE

THIS

BEAR-

ING

FHO:t-[

THE

SHAFT

AND

RE-INSERT

SHAFT

INTO

HOUSING

KNOCJ=ING

SPINI)Li~

THROUGH

'HTH

HANHER AN!)

DRIFT

TO

REMOVE

THE PULLEY END

BEARING.

To

re-assemble,

reverse

above

proceedure

ensuring

all

original

parts

are

thoroughly

cleaned

out.

'*

.

It

should

also

be

noted

that

the

two

locknuts

on

th~

radial

slot

in

the

rivin~

knife

plate

should

on].v

be

tightened

enouLh

to

provide

a

gyide

for

the

motion

of'

the

elate

and

not

to

clamp

or

lock

the

plate

in

posi-

tion.

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-

o

'--t)

www.DaltonsWadkin.com

18

BELT

TENSION:-

On

the

standarn

machine

the

drive

from

the

5.

SHP

motor

(4KW')

to

the

saw

spindle

is

by

means

of

three

ALPHA

500

type

"V"

Belts.

To

ensure

maximum

e~ficiency

and

life.of

these

belts,

it

is

important

that

the

correct

belt

tension

is

maintained

at

all

times

~rom

new,

especially

in

the

"running

in"

period.

To

tension

the

belts

follow

the

undermen-

tioned

proceedure.

(SEE

FIG.

D.2.)

By

turning

turnbuckle

'A'

linking

the

tension

studs,

the

centre

distance

of

the

pulleys

can

be

increased

to

provide

greater

tension

on

the

belts.

To

achieve

the

correct

tension,

measure

the

centre

distance

of

the

~ulley3

(FIG

D3.)

and

adjust

with

the

turnbuckle

until,

whilst

applying

a

force

at

right

~n~Jes

ar.~

central

Along

the

belt,

the

deflec-

tion

is

not

greater

than

0-5mm

per25mrrrof

span

-

(e.g.584·

span:::

Tl-5mm

def'lection.)

REPLACING

BELTS,.:-

To

replace

belts,

decrease

pulley

centre

distance

by

screwing

turn-

buckle

and

thus

relieving

tension

on

the

belts

for

their

removal.

After-

,,.,arde

retension

as

given

above.

POINTS

TO

NOTE

WHEN

HAINTAINING BELT

DRIVES:-

1.

ALWAYS

MAINTAIN

CORRECT

BELT TENSION•

.2.

REPLACE

WOHN

m'::LTS

WITH

SAME

TYPE AS

SPECIFIED.

J.

ALl-lAYS

REPLACE

WORN

OR

D.\J.tAGED

BELTS DtMEDIATELY.

4.

ENSURE

pm

.LEYS

ARE

CO

RH.ECTL

Y ALIG!\ED.

5.

DO

NOT

PRISE

BELTS

OVER

PULLEYS lfITH SCREli DRIVERS

OR

OTHER

SHARP

IMPLEM~NTS

AS

THIS

CAN

DAMAGE

BELTS.

6.

ENsrJ!1E PULLEY

GROOV'ES

AND

BELTS

ARE

CLEAN

AND

RE}10VE

k"fY

OIL,

GREASE

RUST

OR

BURRS

'mIcn

ARE

PRESENT. j

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Method

of

packingup

motbr

for remcNal of

tension screws

as

outlined in section

D1

I

19

u---+--t---A

FIG

D2

FIG

D3

DEElnECTION

__

O·5rnm

PE

R

25

mm

__

.

OF

SPAN

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Wadkin BSW 20 inch User manual

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