3d25db3b-6fdb-7352 - mantenimiento · pdf file · 2014-05-28section 4: rim &...

23
4-1 Section 4 Section 4 Rim & Face Alignment Method Section 4: Rim-Face Alignment Method ....... 4-2 Mounting the Dial Indicator Fixtures................. 4-3 Measuring the A, B, & C Dimensions ............... 4-5 Obtaining As-Found Readings ......................... 4-6 Measuring & Interpreting Vertical Misalignment ................................................... 4-7 Measuring & Interpreting Horizontal Misalignment ................................................... 4-9 Calculating the Front and Rear Feet Positions4-11 Rim-Face Calculation Precautions ................. 4-12 Constructing a Rim-Face Graph .................... 4-13 Plotting Offsets .............................................. 4-16 Determining the Movable Shaft Position ........ 4-18 Rim-Face Graphing Precautions .................... 4-20 Making Vertical Corrections ........................... 4-22 Making Horizontal Corrections ....................... 4-23

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Page 1: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-1

Sect

ion

4

Sect

ion

4 R

im &

Fac

e Al

ignm

ent M

etho

d

Se

ctio

n 4:

Rim

-Fac

e Al

ignm

ent M

etho

d....

...4-

2 M

ount

ing

the

Dia

l Ind

icat

or F

ixtu

res.

......

......

....4

-3

Mea

surin

g th

e A,

B, &

C D

imen

sion

s....

......

.....

4-5

Obt

aini

ng A

s-Fo

und

Rea

ding

s....

......

......

......

...4-

6 M

easu

ring

& In

terp

retin

g Ve

rtica

l M

isal

ignm

ent.

......

......

......

......

......

......

......

......

..4-

7 M

easu

ring

& In

terp

retin

g H

oriz

onta

l M

isal

ignm

ent.

......

......

......

......

......

......

......

......

..4-

9

Cal

cula

ting

the

Fron

t and

Rea

r Fee

t Pos

ition

s4-1

1 R

im-F

ace

Cal

cula

tion

Prec

autio

ns...

......

......

..4-

12

Con

stru

ctin

g a

Rim

-Fac

e G

raph

......

......

......

..4-

13

Plot

ting

Offs

ets.

......

......

......

......

......

......

......

...4-

16

Det

erm

inin

g th

e M

ovab

le S

haft

Posi

tion

......

..4-

18

Rim

-Fac

e G

raph

ing

Prec

autio

ns...

......

......

.....

4-20

M

akin

g Ve

rtica

l Cor

rect

ions

......

......

......

......

...4-

22

Mak

ing

Hor

izon

tal C

orre

ctio

ns...

......

......

......

..4-

23

Page 2: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-2

Sect

ion

4: R

im &

Fac

e Al

ignm

ent M

etho

d

You

can

use

the

Rim

& F

ace

Met

hod

to p

erfo

rm a

ca

lcul

ated

pre

cisi

on a

lignm

ent p

roce

ss.

You

may

use

a v

arie

ty o

f sha

ft al

ignm

ent f

ixtu

res.

We

reco

mm

end

that

you

use

a c

omm

erci

al p

acka

ge

desi

gned

to a

ccom

mod

ate

a va

riety

of s

haft

diam

eter

s.

The

fixtu

res

shou

ld in

clud

e an

ass

ortm

ent o

f rod

s to

sp

an v

ario

us c

oupl

ing

leng

ths.

The

se p

acka

ges

expe

dite

the

prec

isio

n al

ignm

ent p

roce

ss.

Also

, sag

va

lues

can

be

pre-

dete

rmin

ed fo

r the

sta

ndar

d ro

d as

sortm

ent.

To p

erfo

rm th

e R

im &

Fac

e M

etho

d, y

ou m

ust:

♦ M

ount

the

dial

indi

cato

rs fi

xtur

es.

♦ M

easu

re th

e A,

B, &

C d

imen

sion

s.

♦ O

btai

n as

-foun

d re

adin

gs.

♦ D

eter

min

e th

e ve

rtica

l foo

t pos

ition

s.

♦ M

ake

verti

cal c

orre

ctio

ns.

♦ M

ake

horiz

onta

l cor

rect

ions

.

♦ R

e-m

easu

re a

nd re

cord

fina

l alig

nmen

t val

ues.

Page 3: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-3

Sect

ion

4

Mou

ntin

g th

e di

al in

dica

tor f

ixtu

res

To m

ount

the

fixtu

res

follo

w th

ese

step

s:

1.

With

the

coup

ling

brok

en, m

ount

the

fixtu

re to

the

stat

iona

ry s

haft

or c

oupl

ing

hub.

2.

Span

the

coup

ling

with

a ro

d.

3.

Rot

ate

the

fixtu

re to

12:

00.

4.

Atta

ch th

e fa

ce d

ial i

ndic

ator

. Th

e di

al in

dica

tor

plun

ger m

ust b

e ce

nter

ed fo

r equ

al p

ositi

ve a

nd

nega

tive

trave

l.

5.

Atta

ch th

e rim

dia

l ind

icat

or.

The

dial

indi

cato

r pl

unge

r mus

t be

cent

ered

for e

qual

pos

itive

and

ne

gativ

e tra

vel.

Page 4: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-4

Fixt

ure

Mou

ntin

g Pr

ecau

tions

Reg

ardl

ess

of th

e sp

ecifi

c ha

rdw

are

bein

g us

ed, t

he

follo

win

g pr

ecau

tions

sho

uld

be o

bser

ved.

♦ N

ever

atta

ch th

e fix

ture

to th

e fle

xibl

e po

rtion

of t

he

coup

ling.

♦ M

axim

ize

the

swee

p di

stan

ce o

f the

face

dia

l in

dica

tor f

or th

e ge

omet

ry o

f the

mac

hine

bei

ng

alig

ned.

If t

he fa

ce d

ial c

onta

cts

the

coup

ling

face

di

rect

ly, e

nsur

e th

e pl

unge

r of i

ndic

ator

con

tact

s th

e co

uplin

g ne

ar it

s ou

ter e

dge.

♦ En

sure

fixt

ures

are

mou

nted

at a

pos

ition

whe

re

rota

tion

is p

ossi

ble.

It i

s de

sira

ble

to h

ave

360

degr

ees

of ro

tatio

n.

Befo

re o

btai

ning

alig

nmen

t mea

sure

men

ts, d

eter

min

e di

al in

dica

tor b

ar s

ag o

f the

rim

dia

l ind

icat

or a

nd

ensu

re d

ial i

ndic

ator

read

ings

are

val

id a

nd re

peat

able

. Se

e Se

ctio

n 2

for d

etai

ls.

Page 5: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-5

Sect

ion

4

Mea

surin

g th

e A,

B, &

C d

imen

sion

s

To

mea

sure

the

A, B

, & C

Dim

ensi

ons,

follo

w th

ese

step

s.

1.

The

�A�

Dim

ensi

on is

the

diam

eter

of f

ace

indi

cato

r tra

vel.

The

�A� D

imen

sion

sho

uld

be

slig

htly

less

than

the

coup

ling

diam

eter

.

This

is th

e m

ost c

ritic

al d

imen

sion

. M

easu

re �

A�

very

car

eful

ly.

2.

The

�B�

Dim

ensi

on is

the

dist

ance

from

the

rim

indi

cato

r to

the

front

foot

bol

t cen

ter.

Thi

s di

men

sion

is m

easu

red

para

llel t

o th

e sh

aft.

3.

The

�C�

Dim

ensi

on is

the

dist

ance

bet

wee

n fro

nt

and

rear

foot

bol

t cen

ters

. Th

is d

imen

sion

is

mea

sure

d pa

ralle

l to

the

shaf

t.

Page 6: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-6

Obt

aini

ng A

s-fo

und

Rea

ding

s

To o

btai

n a

com

plet

e se

t of a

s-fo

und

read

ings

, per

form

th

e st

eps

belo

w:

1.

Rot

ate

the

dial

indi

cato

rs to

12:

00.

2.

Set t

he ri

m d

ial i

ndic

ator

to th

e po

sitiv

e sa

g va

lue.

3.

Set t

he fa

ce d

ial i

ndic

ator

to z

ero.

4.

Rec

ord

the

setti

ng o

f bot

h di

als

at 1

2:00

.

5.

Rot

ate

the

dial

indi

cato

rs to

3:0

0.

6.

Det

erm

ine

and

reco

rd th

e re

adin

g on

bot

h di

als.

7.

Rot

ate

the

dial

indi

cato

rs to

6:0

0.

8.

Det

erm

ine

and

reco

rd th

e re

adin

g on

bot

h di

als.

9.

Rot

ate

the

dial

indi

cato

rs to

9:0

0.

10.

Det

erm

ine

and

reco

rd th

e re

adin

g on

bot

h di

als.

11.

Rot

ate

the

dial

s to

12:

00 a

nd e

nsur

e bo

th d

ials

re

turn

to th

eir o

rigin

al s

ettin

g.

Doc

umen

t as-

foun

d re

sults

usi

ng a

form

at s

imila

r to

that

sho

wn

belo

w.

Page 7: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-7

Sect

ion

4

Mea

surin

g &

Inte

rpre

ting

Vert

ical

M

isal

ignm

ent

To m

easu

re v

ertic

al m

isal

ignm

ent,

perfo

rm th

e fo

llow

ing

step

s:

1.

Rot

ate

the

dial

indi

cato

rs to

6:0

0.

2.

Se

t the

face

dia

l ind

icat

or to

read

zer

o.

3.

Set t

he ri

m d

ial i

ndic

ator

to th

e sa

g va

lue.

4.

Rot

ate

both

sha

fts (i

f pos

sibl

e) to

12:

00.

5.

R

ecor

d th

e D

IR a

nd D

IF d

ial i

ndic

ator

TIR

val

ues.

Page 8: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-8

To d

eter

min

e of

fset

and

ang

ular

ity fr

om th

e 12

:00

TIR

�s, u

se th

e fo

llow

ing

rule

s:

♦ C

oupl

ing

Offs

et =

Rim

Dia

l (D

IR) T

IR

2

♦ Sh

aft A

ngul

arity

= F

ace

Dia

l (D

IF) T

IR

A

dim

ensi

on

Page 9: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-9

Sect

ion

4

Mea

surin

g &

Inte

rpre

ting

Hor

izon

tal

Mis

alig

nmen

t

To m

easu

re h

oriz

onta

l mis

alig

nmen

t, pe

rform

the

follo

win

g st

eps:

1.

Rot

ate

the

dial

indi

cato

rs to

9:0

0.

2.

Se

t bot

h di

al in

dica

tors

to z

ero.

3.

Rot

ate

both

sha

fts to

3:0

0.

4.

R

ecor

d th

e D

IF a

nd D

IR d

ial i

ndic

ator

TIR

val

ues.

Page 10: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-10

To d

eter

min

e of

fset

and

ang

ular

ity fr

om th

e 3:

00 T

IR�s

, us

e th

e fo

llow

ing

rule

s:

♦ C

oupl

ing

Offs

et =

Rim

Dia

l (D

IR) T

IR

2

♦ Sh

aft A

ngul

arity

= F

ace

Dia

l (D

IF) T

IR

A

dim

ensi

on

Page 11: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-11

Se

ctio

n 4

Cal

cula

ting

the

fron

t and

rear

feet

pos

ition

s

Fron

t foo

t pos

ition

cal

cula

tion:

Rear

Foo

t pos

ition

cal

cula

tion:

Posi

tive

valu

es m

ean

the

foot

is h

igh,

shi

ms

mus

t be

rem

oved

.

• N

egat

ive

valu

es m

ean

the

foot

is lo

w, s

him

s m

ust

be a

dded

.

Page 12: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-12

Rim

-Fac

e C

alcu

latio

n Pr

ecau

tions

1.

Ensu

re th

e rim

and

face

dia

l ind

icat

or T

IR�s

are

pr

oper

ly d

eter

min

ed fr

om th

e di

als

prio

r to

perfo

rmin

g ca

lcul

atio

ns.

2.

Be c

aref

ul N

OT

to m

ake

mat

hem

atic

al e

rror

s w

hen

subt

ract

ing

sign

ed n

umbe

rs.

3.

Obs

erve

par

enth

eses

in th

e eq

uatio

ns.

Perfo

rm

oper

atio

ns in

side

par

enth

esis

firs

t.

4.

Do

NO

T m

ake

hum

an e

rror

s su

bstit

utin

g re

al

valu

es in

to th

e eq

uatio

ns.

5.

Ensu

re th

e A,

B, a

nd C

dim

ensi

ons

are

accu

rate

an

d ar

e pr

oper

ly e

nter

ed in

to th

e eq

uatio

ns.

Page 13: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-13

Se

ctio

n 4

Con

stru

ctin

g A

Rim

-Fac

e G

raph

To c

onst

ruct

a s

cale

d R

im-F

ace

grap

h, p

erfo

rm th

e fo

llow

ing

step

s:

1.

Obt

ain

grap

h pa

per w

ith 1

0 di

visi

ons

betw

een

bold

lin

es.

2.

Turn

the

grap

h pa

per s

o th

at th

e lo

ng s

ide

is

horiz

onta

l.

3.

Dra

w a

hor

izon

tal l

ine

at th

e ce

nter

of t

he p

age.

♦ Th

is li

ne re

pres

ents

the

stat

iona

ry s

haft

cent

er

and

is d

raw

n ac

ross

the

page

mid

way

dow

n th

e gr

aph

divi

ding

the

page

. It

is h

elpf

ul if

this

lin

e is

on

top

of o

ne o

f the

bol

d lin

es.

4.

Det

erm

ine

the

horiz

onta

l plo

tting

sca

le.

♦ Al

way

s us

e th

e la

rges

t sca

le p

ossi

ble.

M

easu

re th

e di

stan

ce fr

om th

e s

tatio

nary

in

dica

tor p

lung

er to

the

cent

er-li

ne o

f the

rear

fe

et o

f the

mov

able

mac

hine

. St

anda

rd g

raph

pa

per i

s ab

out 1

0 in

ches

acr

oss.

The

larg

est

horiz

onta

l sca

le w

ill b

e th

e m

achi

ne d

ista

nce

divi

ded

by th

e pa

ge w

idth

. N

ote

your

ho

rizon

tal s

cale

.

5.

Mak

e a

verti

cal l

ine

on th

e ex

trem

e le

ft of

the

horiz

onta

l lin

e.

Page 14: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-14

♦ Th

is m

ark

repr

esen

ts th

e po

int w

here

the

rim

dial

indi

cato

r con

tact

s th

e sh

aft o

r cou

plin

g hu

b an

d is

labe

led:

DIR

.

6.

Mak

e a

seco

nd v

ertic

al li

ne re

pres

entin

g th

e po

int a

long

the

shaf

t len

gth

of th

e fro

nt fe

et o

f th

e m

ovab

le m

achi

ne (F

F).

7.

Mak

e th

e th

ird v

ertic

al li

ne re

pres

entin

g th

e po

int a

long

the

shaf

t len

gth

of th

e re

ar fe

et o

f th

e m

ovab

le m

achi

ne (R

F).

Page 15: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-15

Se

ctio

n 4

Upo

n co

mpl

etio

n of

the

step

s ab

ove,

the

grap

h w

ill lo

ok

sim

ilar t

o th

e on

e sh

own

belo

w.

For t

his

exam

ple,

the

B an

d C

dim

ensi

ons

both

equ

al 1

0 in

ches

.

Page 16: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-16

Plot

ting

Offs

ets

Afte

r set

ting

up th

e gr

aph,

the

next

ste

p is

to p

lot t

wo

offs

et p

oint

s. O

ne is

the

offs

et m

easu

red

in th

e pl

ane

of th

e rim

dia

l ind

icat

or (D

IR).

The

oth

er o

ffset

poi

nt is

de

rived

from

the

face

dia

l ind

icat

or (D

IF) r

eadi

ng a

nd

the

�A� d

imen

sion

. To

plo

t the

offs

ets,

per

form

the

follo

win

g st

eps:

1.

Det

erm

ine

the

verti

cal s

cale

.

♦ Th

e ve

rtica

l sca

le is

typi

cally

1 m

il (0

.000

�) p

er

divi

sion

. In

cas

es o

f gro

ss m

isal

ignm

ent

whe

re th

e of

fset

s w

ill n

ot fi

t on

the

page

, a

larg

er s

cale

, suc

h as

2-3

mils

per

div

isio

n, is

so

met

imes

requ

ired.

2.

Plot

the

offs

et fr

om th

e rim

dia

l ind

icat

or o

n lin

e D

IR.

♦ U

se th

e ho

rizon

tal l

ine

repr

esen

ting

the

stat

iona

ry s

haft

cent

erlin

e as

the

refe

renc

e. A

ll po

ints

abo

ve th

is h

oriz

onta

l lin

e ar

e po

sitiv

e (+

) an

d al

l poi

nts

belo

w th

e lin

e ar

e ne

gativ

e (-

).

♦ En

sure

you

div

ide

the

Rim

Dia

l TIR

by

2 to

ob

tain

an

offs

et v

alue

.

3.

Plot

the

seco

nd o

ffset

poi

nt u

sing

the

shaf

t slo

pe

(Fac

e TI

R /

�A� d

imen

sion

).

♦ Pl

ot th

is p

oint

cou

ntin

g fro

m th

e D

IR o

ffset

po

int!

Page 17: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-17

Se

ctio

n 4

In th

e rim

-face

gra

ph e

xam

ple

belo

w, t

he D

IR o

ffset

is -

10 m

ils a

nd th

e sh

aft s

lope

is +

4 m

ils o

ver a

n A

dim

ensi

on o

f 5�.

Page 18: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-18

Det

erm

inin

g M

ovab

le S

haft

Posi

tion

Afte

r plo

tting

the

two

poin

ts, t

o de

term

ine

the

mov

able

sh

aft p

ositi

on p

erfo

rm th

e fo

llow

ing

step

s:

1.

Usi

ng a

rule

r or s

traig

hted

ge, d

raw

a li

ne

thro

ugh

the

two

offs

et p

oint

s th

at e

xten

ds to

th

e re

ar fe

et o

f the

mov

able

mac

hine

.

2.

Cou

nt th

e nu

mbe

r of s

quar

es in

the

plan

e of

th

e fro

nt a

nd re

ar fe

et to

det

erm

ine

the

posi

tion

and

corr

ectio

ns n

eede

d.

Page 19: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-19

Se

ctio

n 4

In th

e ex

ampl

e be

low

, the

fron

t fee

t of t

he m

achi

ne a

re

2 m

ils lo

w; s

him

s ne

ed to

be

adde

d. T

he re

ar fe

et a

re

posi

tione

d 6

mils

too

high

; shi

ms

need

to b

e re

mov

ed

from

bot

h re

ar fe

et.

Page 20: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-20

Rim

-Fac

e G

raph

ing

Prec

autio

ns

1.

Ensu

re p

rope

r hor

izon

tal a

nd v

ertic

al s

calin

g te

chni

ques

are

con

sist

ently

use

d.

2.

Alw

ays

doub

le c

heck

the

posi

tion

of v

ertic

al li

nes

draw

n to

repr

esen

t the

DIR

, FF,

and

RF.

3.

Ensu

re th

e tw

o pl

ot p

oint

s ar

e pr

oper

ly d

eter

min

ed

from

TIR

�s.

4.

Ensu

re p

ositi

ve o

ffset

s ar

e pl

otte

d ab

ove

the

horiz

onta

l ref

eren

ce li

ne a

nd n

egat

ive

offs

ets

are

plot

ted

belo

w th

e lin

e.

5.

Whe

n in

terp

retin

g th

e gr

aph

to d

eter

min

e th

e m

ovab

le s

haft�

s fro

nt a

nd re

ar fe

et p

ositi

ons

in th

e ve

rtica

l pla

ne, o

bser

ve th

e fo

llow

ing

rule

s:

♦ If

the

mov

able

sha

ft is

abo

ve th

e ho

rizon

tal

stat

iona

ry s

haft

refe

renc

e lin

e th

e sh

aft i

s to

o hi

gh.

♦ If

the

mov

able

sha

ft is

bel

ow th

e ho

rizon

tal

stat

iona

ry s

haft

refe

renc

e lin

e, th

e sh

aft i

s to

o lo

w.

Page 21: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-21

Se

ctio

n 4

6.

Whe

n in

terp

retin

g th

e gr

aph

to d

eter

min

e th

e m

ovab

le s

haft�

s fro

nt a

nd re

ar fe

et p

ositi

ons

in th

e ho

rizon

tal p

lane

, vie

w th

e gr

aph

the

way

you

vie

w

the

mac

hine

, tha

t is,

sta

ndin

g be

hind

the

mov

able

m

achi

ne fa

cing

the

stat

iona

ry m

achi

ne.

Also

ob

serv

e th

e fo

llow

ing

rule

s:

♦ If

the

mov

able

sha

ft is

abo

ve th

e ho

rizon

tal

stat

iona

ry s

haft

refe

renc

e lin

e th

e sh

aft i

s po

sitio

ned

to th

e rig

ht.

♦ If

the

mov

able

sha

ft is

bel

ow th

e ho

rizon

tal

stat

iona

ry s

haft

refe

renc

e lin

e, th

e sh

aft i

s po

sitio

ned

to th

e le

ft.

Page 22: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-22

Mak

ing

vert

ical

cor

rect

ions

To c

orre

ct v

ertic

al m

isal

ignm

ent,

follo

w th

e st

eps

belo

w:

1.

Det

erm

ine

the

verti

cal p

ositi

on o

f the

mov

able

m

achi

ne u

sing

cal

cula

tion

and/

or g

raph

ing

tech

niqu

es.

• Po

sitiv

e va

lues

at t

he fe

et m

ean

that

the

mov

able

mac

hine

is h

igh,

ther

efor

e yo

u w

ill

rem

ove

shim

s.

• N

egat

ive

valu

es m

ean

that

the

mov

able

mac

hine

is

low

, so

you

will

add

shi

ms.

2.

Mak

e sh

im c

hang

es to

bot

h fro

nt fe

et a

nd b

oth

rear

feet

as

need

ed.

3.

Alw

ays

chec

k sh

im th

ickn

ess

with

an

outs

ide

mic

rom

eter

. Pr

ecut

shi

ms

aren

't al

way

s w

hat

they

're m

arke

d; m

any

shim

man

ufac

ture

rs

desi

gnat

e sh

ims

with

the

�nom

inal

� thi

ckne

ss.

4.

Use

con

sist

ent a

nd c

orre

ct to

rqui

ng p

roce

dure

s.

5.

As s

him

cha

nges

are

mad

e, c

heck

for a

nd ta

ke

prec

autio

ns to

avo

id c

reat

ing

soft

foot

con

ditio

ns.

Page 23: 3D25DB3B-6FDB-7352 - Mantenimiento · PDF file · 2014-05-28Section 4: Rim & Face Alignment Met 4-2 hod You can use the Rim & Face Method to perform a calculated precision alignment

4-23

Se

ctio

n 4

Mak

ing

horiz

onta

l cor

rect

ions

To c

orre

ct h

oriz

onta

l mis

alig

nmen

t, fo

llow

the

step

s be

low

:

1.

Rot

ate

the

dial

indi

cato

rs to

9:0

0 an

d ze

ro th

em.

2.

Rot

ate

both

sha

fts (i

f pos

sibl

e) to

3:0

0.

3.

Adju

st th

e di

al in

dica

tors

to o

ne-h

alf v

alue

s.

4.

Mov

e th

e fro

nt fe

et o

f the

mov

able

mac

hine

as

you

wat

ch th

e rim

indi

cato

r m

ove

to z

ero.

5.

Mov

e th

e re

ar fe

et o

f the

mov

able

mac

hine

as

you

wat

ch th

e fa

ce in

dica

tor

mov

e to

zer

o.

6.

Rep

eat s

teps

4 &

5 u

ntil

both

dia

l ind

icat

ors

read

ze

ro.