1977 DATSUN PICK-UP wheel alignment

Condition

Wheel
wobbles

Unevenly
or

excessively
worn

tire

Tire

squeals
Wheel
and
Tire

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Probable

cause

Improper
tire

pressure

Damaged
tire

or
distorted
wheel

rim

Unbalanced
wheel

Loose
wheel
nuts

Worn
or

damaged
wheel

bearing
or
excessive

play
of
wheel

bearing

Improper
front
wheel

alignment

Worn

or
damaged
ball

joint

Excessive

steering
linkage

play
or
worn

steering

linkage

Loose

steering
linkage
connection

Broken

suspension
spring

Damaged
shock

absorber

Improper
tire

rotation

Improper
tire

pressure

Unbalanced
wheel

Improperly
adjusted
brake

Improper
wheel

alignment

Excessively
distorted
or

improperly
installed

suspension
link

High
speed
on

curves

Sudden
start

and

improper
speed
due
to

rapid
acceleration

or

improper
brake

ap

plication

Improper
tire

pressure

Improper
front
wheel

alignment

Distorted
knuckle
or

suspension
link

WT
5
Corrective
action

Measure
and

adjust

Repair
or

replace

Balance

Tighten

Correct

play
or

replace
wheel

bearing

Align

Replace

Adjust
Or

replace

Tighten
nuts
to
rated

torque
or

replace

worn

parts
if

any

Replace

Replace

Conduct
tire

rotation

periodically

Measure
and

adjust

Balance

or

replace

Adjust

Align

Repair

replace
or
if

necessary
reinstall

Reduce

speed

Follow
correct
and

proper
driving
manner

Measure
and

adjust

Align

Repair
or

replace

STEERING
SYSTEM

TROUBLE
DIAGNOSES
AND
CORRECTIONS

Condition

Steering
wheel
moves

heavily

Steering
wheel
turns

but

sluggishly

Vehicle

pulls
to
one

side
Probable
cause

Wheel

alignment
out
of

specifications
or
air

pressure
in
tires

too
low

Steering

linkage
out
of

adjustment

Steering
column
out
of

alignment

Wheels
out
of

alignment
or
air

pressure
in

tires

too
low

Damaged
steering
linkage

Wheels
out

of

proper
alignment

Wheel

bearing
out
of

adjustment

Damaged

steering
linkage

ST
9
Corrective
action

Align
or

inflate
tires

to
correct

pressure

Adjust
and

see
relative

topic
under
Front

Suspension

Repair

Repair
or
inflate
tires

to
correct
air

pressure

Replace
and
see
relative

topic
under
Front

Suspension

Align

Adjust

Replace
and

see
relative

topic
under
Front

Suspension

Body
Frame

CAB

BODY
AND

FRAME

On
the
620

series
models

chassis

frames
are

classified
into
three

types

the
standard
wheelbase

model

long

wheelbase

model
and

Deluxe

Cab
The
frame
consists
of

right
and
left

side
members
which
are
linked

to

gether
with
crossmembers
to

form
a

rigid
structure
that
can

withstand
heavy
loads

The
second

crossmember

is

located
somewhat
to

the
rear
to

permit
individual

replacement
of
the

transmissiol

FRAME
ALIGNMENT

STANDARD
WHEELBASE
MODEL

f
r1
1

587
5

J
I

1

X
62
50

I

b
q

J

A
1

7
I
b

9

9

8

I
1

e

t
r

0
ij
e

6

rd

r
r
1sol

1

1
9ClS

1

085

42

721
Cl

H
1

I

11
OO

l
1

i11
175

6
89

1

069
4
42

10

942
5
37
11

1007
39
65

I

284

295

11
18
11

61
00

d

M

o
8
r

r

c

8

o
r

T
L

BF025B

Fig
BF

I
Underbody
dime1l8ion
Standard
whee

b
e

SF
2