Driveline System Balance Adjustment (Using EVA)

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This procedure is designed to fine-tune the balance of a propeller shaft while it is mounted in the vehicle. Small amounts of residual imbalance which could be present in other related driveline system components could be compensated for as a result of performing this procedure. The end result of...

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Document Title: Driveline System Balance Adjustment (Using EVA)

procedure

fine

balance

propeller

shaft

vehicle

related

driveline

system

components

result

tuning

vibration

first

rotation

balanced

total

perform

required

light

cord

equivalent

brake

rotors

engine

speed

causes

observe

greatest

degrees

marks

sensor

strobe

frequency

displayed

dominant

recorded

concern

amplitude

using

filter

range

placed

effect

clock

position

spot

clamp

weight

head

positioning

move

original

achieved

sufficient

over

following

steps

recheck

improvement

second

equal

distance

between

anddegrees

apart

each

other

relation

maximum

fine tuning

vehicle speed

causes vibration

dominant frequency

marks placed

light spot

using equivalent

amplitude recorded

balance achieved

clamp head

head over

over original

original light

original position

perform following

position clamp

recheck positioning

positioning propeller

shaft marks

improvement balance

required perform

second clamp

clamp propeller

shaft first

clamp heads

total weight

weight required

move position

spot between

distance light

maximum degrees

degrees apart

fine tuning balance

power cord extension

brake drums removed

vehicle speed causes

speed causes vibration

turn engine slow

engine slow stop

slow stop rotation

dominant frequency displayed

marks placed propeller

marks propeller shaft

propeller shaft move

erratically compare current

compare current amplitude

current amplitude vibration

frequency original amplitude

original amplitude recorded

amplitude recorded previously

amplitude decreased amplitude

decreased amplitude recorded

balance achieved sufficient

achieved sufficient vehicle

road tested determine

tested determine effect

determine effect vibration

clamp head over

head over original

over original light

original light spot

position clamp head

recheck positioning propeller

positioning propeller shaft

propeller shaft marks

improvement balance achieved

required perform following

perform following steps

steps second clamp

second clamp propeller

clamp propeller shaft

propeller shaft first

clamp clamp heads

clamp heads aligned

total weight required

move position clamp

position clamp heads

clamp heads equal

either light spot

light spot between

reduce total weight

total weight relation

equal distance light

distance light spot

maximum degrees apart

greatest improvement balance

weight required perform

second clamp heads