Poulan 1990-10 User Manual - Page 8

E.

CHAIN

TENSION

•

Chain

Tension

is

very

important-

-

A

loose

chain

will

wear

the

bar

and

itself

—

A

loose

chain

can

jump

off

bar

during

cutting.

—

A

tight

chain

can

break

or

damage

the

saw

and/

or

bar.

•

The

chain

stretches

during

use,

especially

when

new.

Check

tension

periodically

as

follows:

—

each

time

the

saw

is

used;

—

more

frequently

when

the

chain

is

new;

—

as

the

chain

warms

up

to

normal

operating

temperature.

•

Chain

tension

is

correct

when

the

chain

can

be

lifted

about

1/8"

from

the

Guide

Bar

at

a

point

near

the

middle

of

the

bar

and

will

move

freely

around

the

bar.

•

Chain

tensioning

procedure:

Always

wear

gloves

when

handl-

ing

the

chain.

The

chain

is

sharp

and

can

cut

you

even

when

it

is

not

moving!

1.

Lift

up

the

tip

of

the

Guide

Bar

and

turn

the

Adjust-

ing

Screw

clockwise

until

the

chain

does

not

sag

be-

neath

the

Guide

Bar.

Figure

9

.

2.

Check

the

tension

by

lifting

the

chain

from

the

Guide

Bar

at

the

center

of

the

ban

Figure

10

.

3.

Continue

adjusting

the

Adjusting

Screw

until

the

tension

is

correct.

4.

Tighten

the

Bar

Clamp

Nuts

with

the

Bar

Wrench.

5.

Recheck

chain

tension.

CAUTION:

EZZ

Adjusting

Screw

Th

rn

To

Tighten

Tension

Turn

To

Loosen

Tension

Figure

9

Chain

Can

Be

Lifted

1/8"

When

Tension

Is

Correct

)

O

0_0

O

C

1/8"

Figure

10

F.

BAR

AND

CHAIN

OIL

•

The

Guide

Bar

and

Cutting

Chain

require

continuous

lubrication

to

remain

in

operat-

ing

condition.

Lubrication

is

provided

by

the

au-

tomatic

oiler

system

when

the

oil

tank

is

kept

filled.

—

Lack

of

oil

will

quickly

ruin

the

Bar

and

Chain.

—

Too

little

oil

will

cause

overheating,

re-

sulting

in

smoke

coming

from

the

chain

and/or

discoloration

of

the

guide

bar

rails.

•

Genuine

POULAN/POULAN

PRO

Bar

and

Chain

Oil

is

recommended

to

protect

your

unit

against

excessive

wear

from

heat

and

friction.

POULAN/POULAN

PRO

oil

resists

high

temperature

thinning.

If

POULAN/POULA.N

PRO

Bar

and

Chain

Oil

is

not

available,

use

a

good

grade

SAE

30

oil.

Never

use

waste

oil

for

bar

and

chain

lubrication.

•

In

freezing

weather

oil

will

thicken,

making

it

necessary

to

thin

bar

and

chain

oil

with

a

small

amount

of

Diesel

Fuel

#1

or

kerosene.

Bar

and

chain

oil

must

be

free

flowingfor

oil

system

to

pump

enough

oil

for

adequate

lubrication.

1.

USE

THE

FOLLOWING:

30°

or

above

—

100%

lubricant

—

undiluted.

30°-0°F

-

95%

lubricant

to

5%

Diesel

Fuel #1

or

kerosene.

Below

0°F

—

90%

lubricant

to

10%

Diesel

Fuel

#1

or

kerosene.

2.

HOW

TO

FILL

THE

OIL

TANK

a.

Stop

the

engine.

b.

Turn

saw

on

its

side,

oil

cap

up.

Figure

11

.

c.

Loosen

cap

slowly

and

wait

for

pressure

in

the

tank

to

be

released

before

removing

the

cap.

d.

Fill

the

oil

tank.

Figure

12

.

e.

Replace

the

oil

cap

securely.

3.

IMPORTANT

POINTS

TO

REMEMBER

a.

Fill

oil

tank

each

time

you

fill

fuel

tank

to

ensure

that

there

will

be

sufficient

oil

for

the

chain

whenever

you

start

and

run

the

saw.

b.

The

saw

will

normally

use

about

one

tank

of

chain

oil

for

each

tank

of

fuel

mixture.

If

less

oil

is

used,

check

for

a

plugged

oil

hole

in

the

guide

ban

c.

Keep

sawdust

and

debris

cleaned

from

the

oil

holes

in

the

guide

bar

to

allow

an ad-

equate

oil

fl

ow

to

the

bar

and

chain.

d.

Keep

spilled

and

spattered

oil

wiped

from

the

unit

to

avoid

sawdust

and

debris

build-up.

Pay

particular

attention

to

oil

on

the

fan

housing

and

starter

assembly

to

avoid

over-

heating

the

engine.

e.

It

is

normal

for

a

small

amount

of

oil

to

appear

under

the

saw

after

the

engine

stops.

This

is

excess

oil

draining

from

the

bar

and

chain

when

the

saw

is

not

in

use.

Oil

Cap

ea

-

4

4,

Figure

11

Figure

12

-8-

Poulan 1990-10 User Manual - Page 8

Chain, Tension

Page 8 highlights