Poulan 1990-10 User Manual - Page 15

GENERAL

MAINTENANCE

A

good

maintenance

program

of

regular

inspection

and

care

will

increase

the

service

life

and

help

to

main-

tain

the

safety

and

performance

of

your

saw.

•

Make

all

adjustments

or

repairs

(except

car-

buretor

adjustments)

with:

—

spark

plug

wire

disconnected.

—

engine

cool

as

opposed

to

a

saw

that

has

just

been

run.

•

Check

the

saw

for

loose

bolts,

screws,

nuts,

and

fittings

regularly.

Loose

fasteners

can

cause

an

unsafe

condition

as

well

as

damage

to

your

saw.

A

WARNING

Have

all

chain

saw

service

performed

by

a

quali-

fied

service

dealer

other

than

the

items

li

sted

in

the

maintenance

section

of

this

manual.

A.

GUIDE

BAR.

AND

CHAIN

Increase

the

service

life

of

your

Guide

Bar

and

Chain

by:

—

Usingthe

saw

properly

and

as

recommended

in

this

manual.

—

Maintaining

correct

chain

tension.

—

Proper

lubncation.

—

Regular

maintenance

as

described

in

this

manual.

1.

CHAIN

MAINTENANCE

•

Sharpen

the

chain

when:

- -

wood

chips

are

small

and

powdery.

Wood

chips

made

by

the

saw

chain

should

be

about

the

size

of

the

teeth

of

the

chain.

- -

saw

has

to

be

forced

through

the

cut.

- -

saw

cuts

to

one

side.

CAUTION:

Always

wear

gloves

when

handling

the

chain.

The

chain

can

be

sharp

enough

to

cut

you

even

though

it

is

too

dull

to

cut

wood.

a

SHARPENING

INSTRUCTIONS

NOTE:

These

instructions

apply

to

Poulan

P720

and

P730

chain.

Other

chain

types

may

vary.

Fol-

low

the

manufacturer's

specifications

for

the

chain

used

on

your

saw.

Items

require&

Gloves

Flat

File

7/32"

Diameter

File

Depth

Gauge

6"

File

Holder

1.)

Stop

Engine.

2.)

Adjust

the

chain

for

proper

tension.

Page

7.

3.)

Work

at

the

midpoint

of

the

bar

moving

the

chain

forward

by

hand

as

Pa

eh

cutter

is

fi

led.

4.)

Sharpen

Cutters.

a.)

Position

the

file

holder

at

a

10°

angle

on

the

top

plate

of

the

cutter

and

depth

gauge.

Figure

28

.

b.)

Align

the

25°

fi

le

holder

marks

with

the

bar

and

parallel

to

the

center

of

the

chain

Figures

29

&

31.

NOTE:

If

your

file

holder

bps

a

30°

mark,

disre-

gard

this

mark

and

file

at

a

25°

angle.

c.)

File

from

inside

toward

outside

of

cutter,

straight

across

on

forward

stroke

in

one

direction

only.

Use

2

or

3

strokes

per

cut-

ting

edge.

Figure

30

.

d.)

Keep

all

cutters

the

same

length.

Fig-

ure

30

.

e.)

File

enough

to

remove

any

damage

to

the

cutting

edges

(side

plate

and

top

plate)

of

the

cutter.

Figure

30

.

1)

File

chain

to

meet

specifications

shown

in

Figure

31

.

A

WARNING

Maintain

the

proper

hook

angle

according

to

the

manufacturer's

specification

for

the

chain

you

are

using.

Too

much

hook

angle

will

increase

the

chance

of

kickback

which

can

result

in

serious

injury.

Figures

31

&

33

.

10°

File

Holder

/

File

Cutter

O

O

a

Depth

Gauge

90°

Figure

28

File

Holder

—

Marks

Cutter

7.11•••••••

1

771e.•

in••••samma

Cutter

Figure

29

Cutters

Same

Length

H

Remove

Damage

La\

-

.

:O

Side

Plate

Top

Plate

Figure

30

60°

ti

i

I

1--

25OI

,O

O

0

O

Figure

31

Depth

Gauge

Tool

/

.o.

File

Depth

Gauge

Figure

32

5.)

Correct

Depth

Gauges

a.)

Place

depth

gauge

tool

over

each

cutter

depth

gauge.

Figure

32

b.) File

depth

gauge

with

a

flat

file

until

it

is

level

with

the

top

of

the

depth

gauge

tool.

c.)

Maintain

rounded

front

corner

of

depth

gauge

with

a

flat

file.

Figures

32

&

33

.

NOTE:

The

very

top

of

the

depth

gauge

should

be

flat

with

the

front

half

rounded

off

with

a

flat

file.

-15-

Poulan 1990-10 User Manual - Page 15

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