installation and adjustment data for the vg-5 safety gears

TD-2.2 Outline Dimensionswww.atwellinternational.com

Installation and Adjustment Data for the VG-5 Safety Gears

1 Atwell International Limited

Contents

Mounting and Installation 2 Overspeed Governor 3 Governor Rope Attachment 3 Inertia Spring Setting 3 Guide Rail Type 4 Guide Rail Installation 4 Guide Rail Lubrication 4 Safety Gear Switch 4 On-site Adjustment 5 Routine Maintenance of Safety Gear 5 Periodic Inspections 5

Figures

TD-8.1 Adjustment Data 6 TD-8.2 Outline Dimensions 7 TD-8.3 Downward Acting Safety Gears 8 TD-8.4 Bi-Directional Safety Gears 9 TD-8.5 Bi-Directional Safety Gears 10 TD-SK1A Braking Curve 11 ATW.VG8.AP1 Adaptor Plate 12 ATW.VG8.CR1 Horizontal Connection Rod 13 ExaminationCertificate 14 Declaration of Conformity 15


Introduction

Mounting and Installation

The VG-8 is a hybrid with the linkage mechanism of the VG-5 safety gear mounted within the footprint of the VG-4.Itisboltedtothecarframeorbufferchannelsviaanadaptor/supportplateasshowninfigureTD-8.1.ThisisnormallysuppliedandfittedbythecarmanufacturertodesignsapprovedbyAtwellInternational.Asuitableadaptor plate is illustrated in drawing ATW.VG8.AP1.

The lower surface of the safety gear is used for mounting the bottom car guide shoes either directly or using an adapter plate. Applications TD8.3, TD8.4 and TD8.5 illustrate a sliding guide shoe ETN WSM140 and T409 guide shoe.

1. Themountingandadjustmentofthesafetygearmustfirstbecarriedoutwiththeguideshoes removed.Thecarbalanceshouldfirstbecheckedandanycompensationweightsaddedtoensure that the Out-of-Balance load (OBL) is within the rating of the guide shoes.

2. The car frame must be correctly positioned relative to the guide rails in both planes and blocked to maintaincorrectlocationwhilethesafetygearisbeingfitted.Eachsafetygearendunitshouldbe loosely bolted to the mounting plate using 12 mm diameter bolts.

3. Theactuatingarmandonetransferarmshouldbefittedtothegovernorendandonetransferarm fittedtotheremoteendasshowninapplicableApplicationdrawing.Theactuatingandtransfer armscanbefittedoneithersideofthesafetygeartosuitthelocationofthegovernor.

4. Each end assembly must be set square and central to the guide rails in both planes before tightening the bolts. This can be done by raising the actuating and transfer arms until the inserts contact with the guide rail and then tightening the retaining bolts. When located correctly, the gap between the top of the insert holder and the underside of the top plate when the inserts are in contactwiththeguiderailshouldbebetween8to9mm(seefigureTD-8.1).

5. With the inserts still in contact with their respective guide rail, the guide shoes can be located central with the safety gear and clamped securely in place. Remove any blocking between sling and guide rail and release the actuating /transfer arms.

6. Aconnectingrodbetweentheendassembliesshouldnowbefittedtosynchronisetheactuation of both end units. The recommended connecting rod is illustrated in drawing ATW.VG8.CR1. The length of the rod should be adjusted, using the clevis ends, so that both sets of inserts contact their respective guide rails simultaneously as the actuating arm is raised.

IMPORTANT CHECK - All inserts on both end units MUST contact the guide rails when the actuating arm is lifted. Check alignment of the guide shoes if this does not happen.

When both end units are correctly synchronised and centralised, the clevis ends should be locked using the nuts provided.

7. The safety gears can be pinned to their mounting plates by drilling through one or more pilot holes inthetopplateandfitting8mmdiameterspringtensionpins.Thisisrecommendedbut not essential.

8. Aropeanchoragebracketshouldbefittedtotheslingandtheoperatingrodadjustedsothatthe actuating arm is fully retracted. Check that the insert holders are not being lifted and the complete assembly operates freely before connecting to the governor rope.


Overspeed Governor

Bi-Directional Operation

In common with all VG safety gears, the VG-8 can be inverted to act as an “upward-acting” brake. The mounting and installation is identical to the downward acting safety gear outlined above.

The preferred arrangement is to place the downward acting safety gear beneath the lift car and the upward acting brake on the top of the lift car. This arrangement is illustrated in Application TD8.4 which shows the two brake units being operated by accessory kit SK10.

The Average Braking Force (ABF) required for an upward acting safety gear is substantially lower than that required for a down acting safety gear. An analysis is appended which shows that the ABF can be based on the formula 8(P+Q) compared with 16(P+Q) for a downward acting safety gear.

Forbrakinginthe“up”directiontheVG-8shouldbefittedwithspringstack3andeithercarbideinsert CDS01934 or insert CDS10013.

It is recommended that all upward acting brakes should have a visible marking on the pivot bar assemblyforeaseofon-siteidentification-“RedSleaving”.

Overspeed Governor

The safety gear is designed to work with overspeed governors of either the “drop-jaw” type or “friction” type. However, drop-jaw governors are preferred as these will not reset and release the safety gear if the lift car is jerked upwards by the counterweight falling back following an on-site braking test.

Providedthattheguideshoesarefittedcorrectly,theforcerequiredtoengageapairof“down”acting VG-8 safety gears is approximately 50 Newtons for single torsion springs and 90 Newtons whenapairofspringsisfitted.Forupwardactingsafetygearswhenfittedwith2torsionsprings,the force to engage a pair of safety gears is approximately 70 Newtons.

The minimum force exerted by the governor must be at least twice that required to engage the safety gear subject to a minimum force of 300 Newtons.

The mechanical tripping speed of the governor must be set in accordance with the current issue of EN81 or the equivalent National Standard.

Spreadsheet programme TD-4.3.1 can be used to check that the governor and tension weight for friction type governors complies with EN81.

Governor Rope Attachment

The VG-8 safety gear is supplied with a standard operating kit. Depending on the application, the governor rope is connected to the actuating arm either directly or via a supplementary kit. The maximum force that the safety gear operating arm is subjected to should not exceed 500 Newtons.

One standard arrangement is illustrated in Application TD-8.3. This shows a rope anchorage bracketfittedtothecrownchannelsorsuspensionmembers.Thebracketalsoincorporatesanauxiliary inertia spring for lift travels greater than 25 metres.

The bracket permits full movement of the operating arm whilst preventing excess loads being appliedtotheoperatinglinkage.Thetotaltravelofthesafetygearactuatingrodis35mm.Thefirst26 mm is used to raise the inserts into contact with the guide rail. Full engagement of the safety gearsonlyoccursduringthefinal8to9mmoftravel.Thestandardropeanchoragebracketscanwithstand a maximum governor force of 1500 N.

Other operating arrangements are possible and reference should be made to common “Application and Sales Data” sheets issued for all VG safety gears.


Guide Rail

Inertia Springs

AllVGsafetygearsarefittedwithtorsionspringstohelpovercomethegovernorsysteminertiawhenacceleratingtothenormalrunningspeedofthelift.Onetorsionspringisfittedasstandardtoeachend assembly when it is being used as a conventional downward acting safety gear. A force of 50 Newtonsisrequiredtoengageapairofsafetygears.Iftwospringsarefittedtoeachendassembly,theforce will increase to 90 Newtons

Single torsionspringsshouldprovidesufficient inertia force for lift travelsup to25metresusingafrictiontypegovernorfittedwithropediametersof6or8mm.

Spreadsheet programme TD-4.3.1 can be used to check whether additional inertia springs are required for all popular applications.

When testing counterweight buffers, it is recommended that the safety gear is disconnected as lift car bounce may cause spurious operation of the safety gear.

Guide Rail Type

The VG-8 has been extensively tested on different combinations of guide rail manufacturers and carbide inserts.

As the guide rail manufacturer may be unknown when specifying VG safety gears, the adjustment data isbasedontheAverageFrictionCoefficient.Thefactorysettingdataforthevariouscombinationsofcarbide insert and spring stacks is given in data sheet TD-4.6.2

Should on-site testing require the braking force to be adjusted, this can be achieved by increasing or decreasing dimension “Y” as illustrated in data sheet TD-8.1.

NB all brake adjusting nuts should be adjusted equally on all brake units.

Guide Rail Installation

Guide rails should be designed and installed in accordance with EN81 or equivalent National Code. The running surfaces should be free from rust or other contamination which could affect the braking capacity of the lifts. The joints between adjacent sections must be checked to ensure that steps are below 0.1 mm.

Guide Rail Lubricant

ThelubricantusedinthecertificationoftheVG-8wasISOgrade68oil.However,VGsafetygearsusingcarbideinsertCDS10013havebeencertifiedusingotheroilsincluding:-

a) An 80 grade EP gear oil b) A general 15-50 grade engine oil c) A high pressure grease LG280 d) EP gear oil (Carter 460)

Consequently,AtwellLtdisconfidentthatmanydifferentgradesofoilcanbeusedwithoutsignificantlyaffecting the braking force.

Safety gear switch

When the safety gear is engaged, a device mounted on the car shall initiate the stopping of the motor before or at the moment of safety gear operation. A suitable switch and operating cam may be mounted on either end/side of the safety gear end units.


Routine Maintainance

On-site Testing and Adjustment

The safety gear has been adjusted to suit the load and Governor Tripping Speed stipulated on the serial label. CE marked safety gears are type tested under “free fall” conditions to achieve an average deceleration rate of 0.6g.

When tested with the counterweight connected, the deceleration rate will be approximately 15% higher at around 0.73g. Therefore, to compensate for the braking effect of the counterweight, the test mass should be at least 25% higher than the rated capacity of the lift.

It should also be noted that the braking force of safety gears can vary with speed. The actual speed variation will depend on the maximum speed of the lift. However, at the maximum rated speed and mass,thefinaldecelerationmayexceed1gduringthelast50mmoftravel.Similarly,iftestedwithaload less than the maximum lift capacity, the average deceleration rate may also exceed 1g.

Under certain on-site test conditions, the counterweight may over-travel after the lift car has come to rest. The subsequent fall-back of the counterweight may cause the lift car to be jerked upwards and release the safety gear. This cannot occur under “free-fall” test conditions which the safety gear has beencertified.

When using “drop-jaw” governors, the safety gear will re-engage if the lift car is driven downwards. However, friction type governor may reset and release the safety gear thereby allowing it to descend once again. Some lift consultants may not accept this and may insist on having a drop-jaw governor fitted.

Routine maintenance

Atsixmonthlyintervals,thefollowingchecksshouldbecarriedout:-

1. The actuating rod should be disconnected and the safety gear operated by hand to check that all moving parts are free and that the safety switch operates correctly. The pivot points on the insert holders, linkages and the disc springs should be sprayed with a water repellent lubricant such as WD40 if there is any sign of atmospheric corrosion.

2. Check that the inserts contact both faces of both guide rails when the actuating arm is r aised. - Adjust the safety gear, linkage rod and guide shoe in accordance with installation data if the inserts do not clamp both guide rails correctly.

3. Inspect all pins and carbide inserts for signs of corrosion, deformation, clogging or fractures. Replace any defective parts as required.

Periodic Safety Gear Operation

VG safety gears use toothed carbide inserts which cause localised and controlled grooving of the guide railsurfaceduringbraking.Extensivedevelopmentintovarioustypesofbrakingmediahasconfirmedthat these provide the safest and most consistent braking on machined guide rails independent of the type of rail lubricant or surface condition.

During braking, the inserts produce parallel grooves approximately 0.25 mm deep by 0.5 mm wide. These grooves can be smoothed quickly and easily using emery cloth without impairing the integrity of the guide rail.

The VG-8 safety gear has also been tested over previously used sections of guide rail without any loss of Average Braking Force.

Each set of inserts should be capable of completing in excess of 10 full-load, full-speed safety gear checks before needing to be replaced. However, the inserts should be inspected after each safety gear operationtoconfirmthattheyareingoodconditionandarenotcloggedwithanybrakingresidueorhave any broken teeth.


TD-8.1 - Adjustment Data

"Y" Dimension "Y" Dimension

X

CL of Guide rail

Support Mounting Plate

Brake Force Adjusting Nut Brake Force Adjusting Nut

Governor Force500Newtons Max

8 - 9mm when inserts contact guide rail face

Dry or Lubricated Rails

TD-8.1 Adjustment Data

BRAKE FORCE ADJUSTMENT NUTS ARE FACTORY SET TO THE SPEEDAND LOADDATA IN TD-4.6.2. THE NUTS SHOULD ONLY BE ALTERED IN ACCORDANCE WITH THE TEST INSTRUCTIONS OUTLINED BELOW.NOTE: - A TURN OF ONE FLAT OF THE NUT = 0.25MM MOVEMENT

THE SLIDE DISTANCE WITH A 125% FULL LOAD AND WITH THE SAFETY GEAR ENGAGED AT THE GOVERNOR SPEED SHOULD BE BETWEEN THE MAXIMUM AND MINIMUM VALUES GIVEN ABOVE. THESE VALUES REPSENT DECELERATION RATES OF 0.5g AND 0.7g RESPECTIVELY.

SHOULD THE STOPPING DISTANCE BE OUTSIDE TEH RANGE SHOWN, THE SAFETY GEAR CAN BE ADJUSTED BY INCREASING OR DECREASING THE SETTING DIMENSION "Y" SHOWN ABOVE.THE BRAKE ADJUSTING NUTS ON BOTH END ASSEMBLIES SHOULD BE ROTATED EQUALLY TO INCREASE OR DECREASE THE BRAKING FORCE.

THE LIFT SHOULD BE RE-TESTED AFTER EACH ADJUSMENT UNTIL THE SLIDE DISTANCE FALLSBETWEEN THE TWO VALUES. NOTE! THE GIB INSERTS SHOULD BE INSPECTED AFTER 10 TESTSAND CHANGED IF THERE IS ANY SIGN OF DETERIORATION.

GOVERNOR SPEED MAXIMUM SLIDE DISTANCE

MINIMUM SLIDE DISTANCE

1.0 m/sec 100 mm 71 mm1.5 m/sec 225 mm 161 mm2.0 m/sec 400 mm 286 mm2.5 m/sec 625 mm 446 mm

2.63 m/sec 900 mm 643 mm

TD-8.2 - Outline Dimensions


TD-8.2 Outline Dimensions

VG 8 Safety Gear DataSafety Gear VG8Minimum Mass 400 kgMaximum Mass 2250kgMax Gov'r Speed 2.63 m/secRail Condition Dry or OiledGuide Rails T73 to T89Safety Switch IP67 220V - 4AOperating Force of a Pair of Safety Gear Frames (1 x torsion spring per frame)

50 Newtons

Weight 7.3 kg per Frame

To Suit 6 - 8mm rope SK9 KIT

T409

Operating Force25 Newtons

Inertia Bracket - SK2

Adaptor Plate12mm THICK

Location of Safety Switch

Guide ShoeAdaptor Plate

Inertia Spring M12 Clevis Assembly

Item 10 - Optional

Option WSM140 Guide Shoe

Item 11 - Optional

Slave Arm 01947

Option

M8 Clevis Assembly

T409 GuideShoe

Movement of Actuating Rod

13 x 252 Mounting Slots

5 Holes 8.5mm dia

Note: Purchaser to ensure safety gear clearsguide clips, joint plate bolts and guide fixings


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TD-8.4 - Bi-Directional Safety Gears

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ith A

pplic

atio

n TD

-8.4

Item

No.

Desc

riptio

nQ

ty1

VG8

Fram

e (D

own)

21a

VG8

Fram

e (U

p)2

2Tr

ansf

er A

rm 0

1948

23

Slav

e Ar

m 0

1947

24

Safe

ty S

witc

h2

5M

8 Cl

evis

Asse

mbl

y4

6M

12 C

levi

s Ass

embl

y2

6aLi

nk P

late

Ass

embl

y 10

027

27

Bi-d

irect

iona

l Kit

18

6/8m

m ro

pe so

cket

s2

Opt

iona

l Equ

ipm

ent S

uppl

ied

as R

eque

sted

9VG

8 to

Slin

g Ad

apte

r Pla

te4

10Ho

rizon

tal C

onne

ctio

n Ro

ds

M8

Stud

ding

(DBG

- 20

0mm

)2

11Ve

rtic

al C

onne

ctio

n Ro

d

M

12

Stud

ding

(3m

tr)

1

12T4

09 G

uide

Sho

e, C

/W 1

6mm

line

r &

VG

8 to

Gui

de S

hoe

Adap

ter P

late

*4

12a

WSM

140G

uide

Sho

e C/

W 1

6mm

Lin

er &

VG

8 to

Gui

de S

hoe

Adap

ter P

late

*4

ATW

ELL

INTE

RN

ATIO

NAL

LTD

DRA

WN

: R.W

ALK

ERDA

TE: 2

3-M

ay-1

7

THIS

DRA

WIN

G IS

CO

NFI

DEN

TIAL

AN

D M

UST

NO

T BE

CO

PIED

OR

DISC

LOSE

D W

ITHO

UTTH

E W

RITT

EN C

ON

SEN

T OF

ATW

ELL

INTE

RNA

TION

AL

DIM

ENSI

ON

S &

TOLE

RAN

CES

(A

PPLY

AFT

ER P

AIN

TING

/ P

LATIN

G)

UNLE

SS O

THER

WIS

E ST

ATE

D DI

MEN

SIO

NS

ARE

IN

mm

WHO

LE N

UMBE

RS (e

.g.

55)

+ /

- 0

.5m

mO

NE

PLA

CE

DEC

IMA

L (e

.g.

55.5

)

+ /

- 0

.2m

mTW

O P

LAC

E DE

CIM

AL

(e.

g. 5

5.55

)

+

/ -

0.1m

mA

NG

ULA

R DI

MEN

SIO

NS

+

/ -

0.5

DEG

REES

.

MA

TER

IAL:

FIN

ISH

:

DO

NO

T SC

ALE

DR

AW

ING

.

DES

CR

IPTI

ON

: VG

8 A

pplic

atio

n TD

-8.4

DR

AW

ING

NO

.

ATW

.VG

8TD

8.4

IS

SUE

NO

. A

SHEE

T

O

F

BA

LL M

ILL

TOP

BU

SIN

ESS

PAR

KH

ALL

OW

WO

RC

ESTE

R W

R2

6PD

Tel:

019

05 6

4188

1

Fa

x: 0

1905

641

298

Web

: w

ww

.atw

ellin

tern

atio

nal.c

omEm

ail:

info

@at

wel

linte

rnat

iona

l.com

11

SIG

NED

OFF

:C

HEC

KED:


TD-8.5 - Bi-Directional Safety Gears

174

230

2000 Max.

Max

imum

Gov

erno

r For

ce90

0New

tons

Stab

ilise

r Bra

cket

supp

lied

with

item

7

7a

UP

actin

g sa

fety

gea

r fitt

ed w

ith 2

x T

orsi

on S

prin

gsAn

d "R

ED"

Slea

ving

on

Pivo

t Bar

A

2a2

54

1010

33

1212

a

WSM

140

Gui

de S

hoe

Opt

ion

Not

e:Pu

rcha

ser t

o en

sure

safe

ty g

ear

clea

rs g

uide

clip

s, jo

int p

late

sbo

lts a

nd g

uide

fixi

ngs

3535

DET

AIL

ASC

ALE

1 :

1

9 1a 1

7 1178

6 6a

4

T409

Gui

de S

hoe

Opt

ion

Leng

th o

f con

nect

ing

link

mus

t be

adju

sted

so th

e br

acke

tha

s 35m

m o

f tra

vel i

n bo

th d

irect

ions

* Ad

ditio

nal G

uide

Sho

es fo

r the

top

of th

e ca

r slin

g ar

e no

t inc

lude

d in

the

kits

show

n ab

ove

but a

requ

oted

sepa

ratle

y.

Item

s Sup

plie

d W

ith A

pplic

atio

n TD

-8.5

Item

No.

Desc

riptio

nQ

ty1

VG8

Fram

e (D

own)

21a

VG8

Fram

e (U

p)2

2Tr

ansf

er A

rm 0

1923

22a

Actu

atin

g Ar

m 0

1924

23

Slav

e Ar

m 0

1947

24

Safe

ty S

witc

h2

5M

8 Cl

evis

Asse

mbl

y4

6M

12 C

levi

s Ass

embl

y1

6aLi

nk P

late

Ass

embl

y 19

411

7Bi

-dire

ctio

nal K

it1

7aIn

vert

ed M

ount

ed F

ixin

g Ki

t2

86/

8mm

rope

sock

ets

2

Opt

iona

l Equ

ipm

ent S

uppl

ied

as R

eque

sted

9VG

8 to

Slin

g Ad

apte

r Pla

te2

10Ho

rizon

tal C

onne

ctio

n Ro

ds

M8

Stud

ding

(DBG

- 20

0mm

)2

11Ve

rtic

al C

onne

ctio

n Ro

d

M

12

Stud

ding

(3m

tr)

1

12T4

09 G

uide

Sho

e, C

/W 1

6mm

line

r &

VG

8 to

Gui

de S

hoe

Adap

ter P

late

*2

12a

WSM

140G

uide

Sho

e C/

W 1

6mm

Lin

er &

VG

8 to

Gui

de S

hoe

Adap

ter P

late

*2

ATW

ELL

INTE

RN

ATIO

NAL

LTD

DRA

WN

: R.W

ALK

ERDA

TE: 0

5-M

ay-1

7

THIS

DRA

WIN

G IS

CO

NFI

DEN

TIAL

AN

D M

UST

NO

T BE

CO

PIED

OR

DISC

LOSE

D W

ITHO

UTTH

E W

RITT

EN C

ON

SEN

T OF

ATW

ELL

INTE

RNA

TION

AL

DIM

ENSI

ON

S &

TOLE

RAN

CES

(A

PPLY

AFT

ER P

AIN

TING

/ P

LATIN

G)

UNLE

SS O

THER

WIS

E ST

ATE

D DI

MEN

SIO

NS

ARE

IN

mm

WHO

LE N

UMBE

RS (e

.g.

55)

+ /

- 0

.5m

mO

NE

PLA

CE

DEC

IMA

L (e

.g.

55.5

)

+ /

- 0

.2m

mTW

O P

LAC

E DE

CIM

AL

(e.

g. 5

5.55

)

+

/ -

0.1m

mA

NG

ULA

R DI

MEN

SIO

NS

+

/ -

0.5

DEG

REES

.

MA

TER

IAL:

FIN

ISH

:

DO

NO

T SC

ALE

DR

AW

ING

.

DES

CR

IPTI

ON

: VG

8 A

pplic

atio

n TD

-8.5

DR

AW

ING

NO

.

ATW

.VG

8TD

8.5

ISS

UE

NO

. A

SHEE

T

O

F

BA

LL M

ILL

TOP

BU

SIN

ESS

PAR

KH

ALL

OW

WO

RC

ESTE

R W

R2

6PD

Tel:

019

05 6

4188

1

Fa

x: 0

1905

641

298

Web

: w

ww

.atw

ellin

tern

atio

nal.c

omEm

ail:

info

@at

wel

linte

rnat

iona

l.com

11

SIG

NED

OFF

:C

HEC

KED:

TD-SK1A - Braking Curve



ATW.VG8.AP1 - VG-8 to Car Sling Adaptor Plate

100

100

92

35

To suit Car Sling - Min Dim = 150

To S

uit C

ar S

ling 12

0 To

Sui

t Car

Slin

g12

0 To

Sui

t Car

Slin

g

To suit car slingTo suit car sling

13.5

00 T

HRU

27.2

10 X

90°

6

36 29

M12

x 4

0mm

Cou

nter

sunk

scre

ws w

elde

d in

pos

ition

and

gro

und

flush

.Th

ro' h

ole

can

be u

sed

if it

does

not

cla

sh w

ith c

ar sl

ing

chan

nels

.

VG8

Fixi

ng H

oles

13.5

00 T

HRU

27.2

10 X

90°

M12

x X

Xmm

Cou

nter

sunk

scre

ws e

nsur

e he

ads a

re b

elow

surf

ace

to e

nsur

e VG

8 is

flus

h an

d sq

uare

to a

dapt

er p

late

12 M

in

ATW

ELL

INTE

RN

ATIO

NAL

LTD

DRA

WN

: DA

TE: 0

5-M

ay-1

7

THIS

DRA

WIN

G IS

CO

NFI

DEN

TIAL

AN

D M

UST

NO

T BE

CO

PIED

OR

DISC

LOSE

D W

ITHO

UTTH

E W

RITT

EN C

ON

SEN

T OF

ATW

ELL

INTE

RNA

TION

AL

DIM

ENSI

ON

S &

TOLE

RAN

CES

(A

PPLY

AFT

ER P

AIN

TING

/ P

LATIN

G)

UNLE

SS O

THER

WIS

E ST

ATE

D DI

MEN

SIO

NS

ARE

IN

mm

WHO

LE N

UMBE

RS (e

.g.

55)

+ /

- 0

.5m

mO

NE

PLA

CE

DEC

IMA

L (e

.g.

55.5

)

+ /

- 0

.2m

mTW

O P

LAC

E DE

CIM

AL

(e.

g. 5

5.55

)

+

/ -

0.1m

mA

NG

ULA

R DI

MEN

SIO

NS

+

/ -

0.5

DEG

REES

.

MA

TER

IAL:

12m

m M

ild S

teel

FIN

ISH

: Pow

der C

oate

d B

lack

DO

NO

T SC

ALE

DR

AW

ING

.

DES

CR

IPTI

ON

: VG

8 to

Car

Slin

g A

dapt

er p

late

DR

AW

ING

NO

.

ATW

.VG

8.A

P1

ISSU

E N

O. A

SHEE

T

O

F

BA

LL M

ILL

TOP

BU

SIN

ESS

PAR

KH

ALL

OW

WO

RC

ESTE

R W

R2

6PD

Tel:

019

05 6

4188

1

Fa

x: 0

1905

641

298

Web

: w

ww

.atw

ellin

tern

atio

nal.c

omEm

ail:

info

@at

wel

linte

rnat

iona

l.com

11

SIG

NED

OFF

:C

HEC

KED:


ATW.VG8.CR1 - Horizontal Connection Rod

40DB

G -

200

M8

Both

End

s8m

m d

ia

M8

HT S

tudd

ing

Can

also

be

used

ATW

ELL

INTE

RN

ATIO

NAL

LTD

DRA

WN

: R.W

alke

rDA

TE: 2

3-M

ay-1

7

THIS

DRA

WIN

G IS

CO

NFI

DEN

TIAL

AN

D M

UST

NO

T BE

CO

PIED

OR

DISC

LOSE

D W

ITHO

UTTH

E W

RITT

EN C

ON

SEN

T OF

ATW

ELL

INTE

RNA

TION

AL

DIM

ENSI

ON

S &

TOLE

RAN

CES

(A

PPLY

AFT

ER P

AIN

TING

/ P

LATIN

G)

UNLE

SS O

THER

WIS

E ST

ATE

D DI

MEN

SIO

NS

ARE

IN

mm

WHO

LE N

UMBE

RS (e

.g.

55)

+ /

- 0

.5m

mO

NE

PLA

CE

DEC

IMA

L (e

.g.

55.5

)

+ /

- 0

.2m

mTW

O P

LAC

E DE

CIM

AL

(e.

g. 5

5.55

)

+

/ -

0.1m

mA

NG

ULA

R DI

MEN

SIO

NS

+

/ -

0.5

DEG

REES

.

MA

TER

IAL:

HT

Stee

l

FIN

ISH

: BZP

Pas

siva

te

DO

NO

T SC

ALE

DR

AW

ING

.

DES

CR

IPTI

ON

: Ite

m 1

0 - H

oriz

onta

l Con

nect

ion

Rod

DR

AW

ING

NO

. A

TW.V

G8.

CR

1

ISSU

E N

O. A

SHEE

T

O

F

BA

LL M

ILL

TOP

BU

SIN

ESS

PAR

KH

ALL

OW

WO

RC

ESTE

R W

R2

6PD

Tel:

019

05 6

4188

1

Fa

x: 0

1905

641

298

Web

: w

ww

.atw

ellin

tern

atio

nal.c

omEm

ail:

info

@at

wel

linte

rnat

iona

l.com

11

SIG

NED

OFF

:C

HEC

KED:

installation and adjustment data for the vg-5 safety gears

Documents