Pioneer 1073 User manual

rnodell]

(Q)71~

---

PART

NO.

430092

,

CHOKE

FUEL

&

OIL

COMFORTABLE

REAR

HANOLE

FILLERS

CONVENIENTL

Y -ifi'.-"1

LOCATEO

STARTER

HOUSING

HALF

WRAP

CUSHION GRIP

F

HANOLE

,.rP

~

STRUT

(SPROCKET

ANO

CHAIN

COVER)

LARGE

CAPACITY

MUFFLER

·

.

....

QUICK

RELEASE

SCREW

ACCESSIBLE

LOW SPEEO

SETTING

"ON"

.

TOGGLE

SWITCH

THROTTLE

TRIGGER

1

I

2

3

TABLE OF CONTENTS

Identification

of

Controls & Features .

..

2

Stopping

Instru

ct

ion

s.

Operating Instructions.

Preventive Maintenance.

7

8

9

Table

of

Contents

Foreword.

Servicing Procedures

Manual.

Specifications.

Warning Symbols

Preparing

Your

Saw

Fo

r

Use

Fuel & Lubrication

Chain

Lubrication.

Starting Instructions

3

4

5

&6

6

7

Safety

Precautions.

Service Diagnosis.

Filing Instructions

Sharpening

Cutters.

Chain Diagnosis. . . . . . . . .

Common

Problems

Found

With

10&11

11

11&12

..

12

Cutters &

Links.

..

.....

13

Warranty.

. . . . . . . .

..

(Back

Cover)

FOREWORD

This operators manual has been prepared

to

assist

you

in

the

proper

operation

and mainte

nance

of

your

n

ew

Pioneer Chain Saw.

It

coinains

information

that

you

should

know

in

order

to

realize

peak performance. Please read this e

ntir

e

book

carefully, and keep it

handy

for

iuture

reference.

For

service, always

contact

your

local

authorized

Pioneer dealers. Specify

your

complete model

numb

e

r.

SERVICING PROCEDURES

MANUAL

'A

se

rvicing procedures manual

is

written primarily for the service technician with prior chain saw

training and who

is

equipped with the proper tools. Although limited

in

use to the average individ-

ual, this publication

is

available for purchase. If

you

wish to purchase a pr9cedures manual, please

send cheque

or

money

order

for 50 cents to

Outboard

Marine

Corporation,

739

Monaghan' Road,

Peterborough, Ontario, Canada. In

the

U.S.

A.

order from PioneerChain Saws,

900

North

21 Street,

Lincoln, Nebraska. Sorry NO C.O.D. shipments will be made.

To

assure receiving the correct man-

ual, state full model

number

and

quote

part

no.

430141.

All repairs should be carried

out

by

your

authorized

Pioneer Dealer during

your

warranty period.

SPECIFICATIONS

DRY

WEIGHT

{LESS

ATTACI-L}

101bs.

5

oz.

TYPE

OF

DRIVE

Direct

FRONT

HANDLE

Half

Wrap

-

Cushion

Grip

CHAIN

OIL

PUMP

Automatic

CHOKE

or

PRIMER

Choke

MUFFLER

Large

capacity

TH

ROTTLE

LOCK

Std.

Eq't.

GUIDE

BAR

LC

(ULTRA

SLIM)

14"

.050"

Ga

.

SPROCKET

3/8"

Pitch

7

Tooth

CHAIN

3/S"

Pitch

Sureguard

.

050"

Ga.

OPTIONAL

CUTTING

ATTACHMENTS

See

Saw

Chain

&

Accessory

Catalogue

SPARK

PLUG

&

GAP

Champion

CJ6

.030"

Gap

POINT

GAP

.015"

FUEL

CAPACITY

OIL

CAPACITY

ENGINE

LUBRIFI-

CATION

FUEL/OIL

MIX

RATIO

CHAIN

OIL

ENGINE

TYPE

BORE

&

STROKE

DISPLACEMENT

COMPRESSION

RATIO

COMPRESSION

PRESSURE

.75

Imp.

Pt.

.90

U.S.

Pt,

.27

Imp.

Pt

,

.33

U,S.

Pt.

SAE

30-40

2

Cycle

Motor

Oil

with

reg. gas.

16:

1

Pioneer

SAE

10

to

40

Wt.

Single

C'il.,

2

Cycle,

Air

Cooled

1-5/8"

x

1-1/2"

3.1

Cu.

In.

(51

eel

7.0:

1

145

PSIG.

CRANKSHAFT

MAIN

BEARINGS

CRANKSHAFT

SEALS

CONNECTING

ROD

CON.

ROD

BRG.

-

WRIST

END

CON.

ROD

BRG

. -

CRANK

END

PISTON

PI

STON

RINGS

PISTON

RING

GAP

CRANKCASE

CYLINDER

TYPE

STARTER

CLUTCH

IGNITION

INTAKE

CARBURETOR

AIR

FILTER

FUEL

FILTER

CYLINDER

ANGLE

R.P.M.

@

Max.

H.P.

CHAIN

SPEED

@

MAX.

H.P.

3

Piece

Const.,

Forged

Alloy

Steel

Anti

Frict.

Ball

Bearings

Closure

Type

1 Pee.

Forged

Alloy

Steel

Full

Complement

Encased

Needle

8rg.

Grease

Retained

1

Pce

.

Caged

Roller

Ass·y.

Die

cast

Alum.

Alloy

2

Cast

Iron

.088"

to

.098"

2

Pee.

Magnesium

Die

Cast

Alum.,

Chrome

Plate

Bore,

Integral

Head

Ratchet

Drive,

Auto.

Rewind

Centrifugal

2

Shoe

Flywheel

Magneto

-

Breaker

Type

Piston

Ported

Tillotson

HU

Natural

Feutron

Felt

&

Screen,

Dangler

Horiz.

7500

3280

ft./min.

OUTBOARD

MARINE

CORPORATION

reserves

the

right

to

change

weight,

construction,

materials,

speCifications

or

prices

without

notice

and

without

obligation.

WARNING

SYMBOLS

The

purpose

of

safety

symbols

is

to

attract

your

attention

to

possible danger.

The

sym-

bols,

and

the

explanations

with

them,

deserve

your

careful

attention

and

understand-

ing.

Safety

warnings

do

not

by themselves,

eliminate

any

danger.

The

instructions

or

warnings

they

give

are

not

substitutes

for

proper

accident

preventIon measures.

SYMBOL

MEANING

ADVISES

YOU

OF

INFORMA-

TION

OR

INSTRUCTIONS

VIT

·

NOTE:

AL

TO

THE

OPERATION

OR

MAIN

TENANCE

OF

YOUR

E·

QUIPMENT.

SYMBOL

o

PROHIBITED:

SYMBOL

MEANING

WARNS YOU AGAINST

AN

ACTIVITY

WIlICH IS,

OR

MAY BE, I

LLEGAL

IN

YOUR

AREA.

MEANING

FAILURE

TO

OBEY A

SAFETYWARNING

MAY

RESULT

IN

INJURY

TO

YOU

OR

TO

OTHERS.

4

i

I

5

FOR

BEST RESULTS USE PIONEER'DURAGUARD'OR'DURASPEED'SAW CHAIN

PREPARING

YOUR

SAW FOR USE:

As

this

is a new saw it will be necessary

to

assemble

your

guide

bar

and

chain

to

the

eng

ine

unit

and

properly

adjust

the

chain

tension.

Follow

these

steps

for

correct

assembly.

1.

Remove

the

two

strut

nuts

and

lift

the

strut

assembly

(sprocket

cover)

off

the

guide

bar

mounting

bolts. See

Figure 1.

(1

FIG.

1

2. Install

the

guide

bar

by

placing it

over

the

(\Vo

studs

loc-

ated

on

the

side

of

the

crankcase.

You

will

notc

the

ad-

justing

slots

will

permit

the

forward

and

backward

move-

ment

of

the

guide

bar.

See

Figure

2.

NOTE:

Keep

bar

pad,

guide

bar

face

and

guide

bar

oil

slot

clean.

Turn

your

bar

over period-

ically

to

keep

wear

even.

• •

FIG.2

-

--

~

3.

Slide

the

chain

over

the

dutch

drum

and

ontO

the

sprocket.

Feed

the

chain

drive

links

or

centre

links

into

the

top

bar

groove,

continuing

around

the

nose

of

the

bar

until

the

chain

is

on

the

bar.

Be

sure

the

teeth

face

in

the

direction

of

chain

rotation

which

is

away

from

the

sprocket

along

the

top

edge

of

the

bar.

See

Figures

3

and

4.

FIG. 3

4.

Replace

the

strut,

but

keep

the

nues

slack.

Pry

the

bar

outward

with

the

bar

\vrench

supplied.

as

shown

in

Fig

-

ure

5,

until

the

chain

is

snug

around

the

entire

bar

COI1-

tour.

5. Vhth the bar in a raised position adjust the chain tension

and

tighten

the

strut

nuts. See Figure

6.

FIG.6

6.

Proper

tension

is

achieved when

the

chain can be easily

pulled

around

the

bar

by hand. See Figure 7.

A

Safety

PROTECT

YOUR

HANDS

FROM

TIlE

&.

Warning

SIIARP

CHAIN

CUTTE

RS.

AL

WA

YS

USE

A

RAG

OR

WEAR

GLOVES

WI

-

lEN

WOR-

KING

ON

SAW

CHAIN.

"

\:'

••

••••

.....

,

.......

,

F

IG.7

FUEL

AND

LUBRICATION:

A

Safety

Gasoline

is

extremely

flammable and high-

BIllA..

Warning

I)' explosive

under

certain

conditions.

Al-

ways

stop

engine,

and

do

not

smoke

or

al-

Iowan

open

flame

or

spark near

the

saw

when

refueling or servicing

the

fuel

system

.

Always mix

in

well vented area.

THE

INTERNAL

MOVING

PARTS

OF

YOUR

CHAIN

SAW

ENGINE

ARE

LUBRICATED

SOLELY

BY

THE

LUBRI-

CANT

WHICH IS

ADDED

TO

THE

GASOLINE.

GASOLINE: Use regular gasoline.

Premium

or

high

octane

gasoline

is

not

required.

LUBRICATION:

The

proporti

on

of

oil

to

gasoline

is

1

part

OMC 2 cycle

motor

oil

(Pioneer

Chain Saw

Engine oil in

the

U.S.A.)

or

a

reputable

brand

2 cycle engine oil

to

16

parts gaso-

line. (112

pint

of

oil

to

1 gallon gasoline).

(.237

lines

of

oil

to

3.785 litres

of

gaso-

line).

NOTE:

FUEL

MIXTURE,

CHAIN

LUBRICA-

TION,

TEMPERATURE

BELOW

0°

E

(-17.8

0

C)

0°

-

50°

F

(-17.8

-

10°

C)

ABOVE

50°

F

(10°

C)

Keep

your

fuel

thoroughly

mixed

and

clean

at

all times. DO NOT MIX

DIRECTLY

IN

YOUR

CHAIN

SAW

FUEL

TANK.

Fill

the

oil

tank

with

PIONEER

CHAIN

LiJBRICANT

or

equivalent

according

to

the

following chart.

LUBRICANT

LIGHT

CHAIN

LUBRICANT

(SAE

10)

MEDIUM

CHAIN

LUBRICANT

(SAE

20)

HEAVY

CHAIN

LUBRICANT

(SAE

30)

6

7

ALWAYS USE GENUINE PIONEER PARTS AND ACCESSORIES

NOTE:

Under

extreme

winter

cutting

conditions

(below

-10°F,

-23°C),

even

SAE

10

oil will

become

too

thick

to

prime

and

flow

through

the

automatic

oiling

system

on

a

cold

start.

Although

the

oil may warm

up

in

the

saw within minutes,

the damage to

the

chain and guide

bar

can be extensive in

this

short

time

.

At

lower

temperatures

this

thickening

of

the

lubricant

could

lead

to

permanent

damage

of

the

pump

mech

-

anism itself.

Therefore,

it

is

recommended

to

dilute

the chain

lubricant

with

Kerosene, Diesel

ar

Fuel oil

under

extreme

cold

weather

conditions

to

the

following

racios:

-10°F

(-23°C)

add

one

pint

diluent

to

one

gallon

of

oil

-20°F

(-29°C)

~dd

one

quart

diluent

to

one

gallon

of

oj(

The required

mixture

sh

ould,

of

course, be

prepared

prior

to

the

indicated

subzero

temperature

exposure

.

STARTING INSTRUCTIONS:

A..~

Safety

Before using

the

saw, refer

.to

safety

pre-

~Warning

cautions

shO\

....

n

on

page

9.

1. Fill fuel

tank

with

properly

mixed

fuel

as previously ex-

plained.

2. Fill

your

chain

oil reservoir

with

the

recommended

oil.

3.

To

start

the

engine,

place

the

chain

saw

in a

convenient

position

where

it will sit

firmly

wh~n

you

pull

the

start-

er

handle.

4.

Ensure

that

the

ignition

switch

is

in

the

"ON"

position.

5. Pull

the

choke

knob

out

.

6.

Set

throttle

lock.

7.

Hold

front

.

handle

firmly

and

place

your

foot

in

the

rear

handle

loop.

8. .

Grip

the

starter

handle.

Pull

handle

slightly uncil

you

feel

the

starter

engage,

then

give a

sharp.

firm pull.

Repeat

until

engine

starts.

9. When

the

engine

starts,

allow

the

starter

handle

to

recoil

to

its original

position.

Do

not

allow

handle

to

snap

back.

10.

Once

engine

is

started

and

requires

no

further

choking.

release

the

throttle

lock

to

ensure

a

slow

idle.

A

~afety

With

throttle

lock

set,

the

clutch

is

engag-

.warnin

g

ed

and

the

chain

is

moving

around

the

bar

and

could

be

a

potential

haJ:ard.

11. A

hot

engine

should

restart

without

choking.

Hold

the

throttle

fully

open

or

reset

throttle

lock

and

give

the

starter

sharp.

firm

pulls.

12.

Should

a

hot

engine fail

to

restart,

a single

choking

may

aid

starting.

13. Avoid

flooding.

Do

not

choke

a

hot

engine

without

first

trying

to

start

with

only

the

throttle

open.

A

flooded

en-

gine

may

take

6

to

8 pulls

to

clear itself

and

restart.

STOPPING INSTRUCTIONS:

..

Safety

Alwaysshuc

off

the

engine

before

setting

&'Warning

down

the

saw.

To

stop

the

saw, place ignition

switch

to

"OFF"

position

by

moving

the

toggle

switch

downward.

OPERATING INSTRUCTIONS:

If

you

haven't

previously

operated

a

chain

saw,

cut

a

few

lengths

from

a

small

log

to

get

the

feel

of

a

chain

saw

in ac-

tion.

When

starting

a

cut,

don't

race

the

engine

and

jam

the

saw

into

the

wood.

Slowly

increase

the

throttle

to

engage

the

chain

as

you

start

a

cut

.

Always

maintain

full

throttle

while in a

cut.

Your

chain

saw

is

a

direct

drive

type,

and,

be-

cause

of

its high

speed

cutting

accion,

you

should

not

exert

pressure

to

force

it

through

the

wood.

A

light

but

firm

touch

will

get

more

wood

cut

with

less

effort

on

your

part.

When

coming

to

the

end

of

the

cut.

be

prepared

to

release

the

throt

-

Ie

immediately.

Study

the

following

illustrated

cutting

tech-

niques. Avoid

dangerous

practices

for

your

safety

and

longer

chain

saw

and

attachment

life.

Remember.

a

chain

saw

like

any

power

cutting

tool,

if

used

without

proper

precautions,

can cause serious

injury.

A

periodic

check

and

re-tightening

of

all

ex

ternal

nuts,

bolts

and

screws will

help

to

ensure

a

more

reliable

and

safer

saw.

I

•

I

FOR BEST RESULTS USE PIONEER'OURAGUARO'OR'OURASPEEO'SAW CHAIN

FELLING

LlMBING

BUCKING

BUCK

TROM

10f'

A,

VOlo

cu

nlN(;

f.

ARIIi'

1".. UP

Pl

R N0 10 UN

(;CUT

r'

-\

,~'"

'

4,h

c

ur

\

2nd

UpnR

N01

(H

IN

GCU

I

<t

LOWU!

NOT(HINr..

CU r

PREVENTIVE

MAINTENANCE

KLEP

MJR;I(

O

ff

GR

OU

ND

LE"V

l

~U

M'ORT

LIMSS UN

TI

L

TR

lllS

8UCKl O

Preventive

maintenance

is

the

elimination

of

potential

causes

of

trouble

before

they

occur.

To

realize

the

full value

of

your

investment

and

prevent

unnecessary repair bills

together

with loss

of

use, MAKE PREVENTIVE MAINTENANCE A

MUST.

Check

your

chain

saw

daily

and

set

up

a

system

of

regular

inspections

and

rune-ups.

1.

AIR

CLEANER:

Your

air cleaner

is

the

specially proces-

sed filter

element

which fits securely

under

the

top

cover.

To

service,

turn

the

centrally

located

screw

to

the

left

which releases

the

cover. Periodic cleaning

andlor

re:place-

ment

of

this filter

is

required

to

ensure

a

smooth

running

saw. While

the

top

cover

is

off,

wipe all

accumulated

dust

away

from

the

carburetor.

This will

prevent

many

car-

buretor

problems

at

a

later

date.

2.

CYLINDER

HEAD AND FINS,

The

cylinder fins

must

be

kept

thoroughly

clean. Blocked cylinder fins will cause

the

unit

to

overheat. With a

thin tool

remove

any

accum-

ulated

sawdust

from

between

the

fins. This increases

the

cooling effl'ct

of

forced

air

from

the fan

on

the flywheel.

3.

EXHAUST

PORTS: Remove

the

screws securing

t!"le

muf-

fler.

Turn

the

engine

over

to

a position

where

the

piston

is

clear

of

exhaust

ports.

With a

blunt

edged

tool,

care-

fully

remove

any

accumulated

carbon

and

wipe away

small particles

before

reinstalling the muffler. Replace

the

exhaust

gasket if required.

4.

lGNlTlON:

Check

your

spark plug wire for possible wear

or break. During reassembly be careful

that

no

part

of

this wire

is

permitted

to

rub

against

the

flywheel. CAU-

TREE

SUPPORTED

ALONG

ENTIRE

LENGTH

2nd

CUI

8U

CK

(lI J

,

~

UIA, I

I"

CUT BUO':

II

/l

,d

01

"- I

TO

AVOID

PINC

HIN(.

TREE SUPPORTED ON

80TH

ENOS

TION -excessive oil on

the

cam

wiper

itself may damage

your

points. Replace felt or wash in clean gasoline, sque-

eze

dry

and

add

one

drop

only

of

clean oil.

5.

SPARK

PLUG: As in

the

case

of

a1l2-cycle

motors

your

spark plug

should

be

checked

and

kept

clean

of

carbon

and

readjust

to

a gap

of

.030

inches.

6. MAGNETO: Do

not

inspect, remove

or

adjust

the

mag-

neto

unless

absolutely

necessary.

To

check the

breaker

point

gap which

should

be

maintained

at

.015 inches, re-

move

the

cover

and

slowly

turn

the engine over until

the

points

are

open

by

the

cam,

then

with

a feeler gauge,

check

to

.015".

It

is

recommended

that

all

magneto

ser-

vice work be carried

out

by

an

authorized

Pioneer dealer.

7. CARBURETOR: As

mentioned,

do

not

change the car-

buretor

needle settings unnecessarily.

Should

the

carbur-

etor,

for

any

reason, need servicing, this

should

be per-

formed

by

your

servicing dealer.

8. CLUTCH:

Th

e

clutch

assembly

of

your

chain saw

is

of

a

centrifugal

type

and

fully

automatic.

The

clutch engages

when

the

throttle

is

opened

to

a

point

where

the engine

revolutions cause

the

clutch

shoes

to

engage. Do

not

slip

your

clutch

through

overloading

as

it

will wear

out

the

shoes.

Paractic~immediately

releasing

the

throttle

if

the

chain

is

pinched

as well as

at

the

end

of

a

cut.

9.

BAR

MAlNTENANCE:

To

assure

that

the

oil reaches

the

chain

at

all times, cleaning

of

the

bar

groove and

the

oil

inlet

hole

is

important.

Remove

sawdust

from

these

areas

after

each

day

of

cutting,

or whenever

the

oil

supply

ap-

pears

inadequate.

To

keep

the

wear equal

on

the

rails

of

the

cutter

bar,

it

should

be

turned

over periodically. 8

I

9

SAFETY

PRECAUTIONS

1.

2.

3.

4.

5.

6.

Never

operate

a chain saw when

you

are fatigued.

Use

safety

footwear,

snug-fitting clothing,

and

eye, hear-

ing

and

head

protection

devices.

Always use

caution

when

handling

fuel. Move

the

chain

saw

at

least

10

feet

(3

m)

from

the

fueling

point

before

starting

the

engine.

Do

not

allow

other

persons

to

be

near

the

chain saw

when starring

or

cutting

with

the

chain saw. Keep by-

standers

and

animals

out

of

the

work

area.

Never

start

cutting

until

you

have a clear

work

area, se-

cure

footing,

and

a planned

retreat

path

from

the

falling

trec.

Always hold

the

chain saw firmly

with

both

hands

when

the

engine

is

running. Use a firm grip

with

thumbs

and

fingers encircling

the

chain saw handles. See Figure 8.

FIG

. 8

7. Keep all parts

of

your

body

away

from

the

saw chain

with

the

engine

is

running

.

8. Before

you

start

the

engine,

make

sure

the

saw chain

is

not

contacting

anything.

9. Always

carry

the

chain saw

with

the

engine

stopped.

the

guide bar and saw chain

to

the rear, and the

muffler

away

from

your

body.

10

. Never

operate

a chain saw

that

is

damaged,

improperly

adjusted,

or

is

not

completely

and securely as.sembled.

Be

sure

that

the

saw chain

stops

moving

when

the

throt-

tle

control

trigger

is

released.

11. Always

shut

off

the

engine

before

setting

it

down

.

12

.

Use

extreme

caution

when

cutting

small size

brush

and

saplings because slender material

may

catch the saw chain.

and

be

whipped

toward

you

or

pull

you

off

balance.

13. When

cutting

a limb

that

is

under

tension

be

alert

for

spring

back

so

that

you

will

not

be

struck

when

the

[en-

sian

in

the

wood

fibres

is

released.

14

. Keep

the

handles

dry,

dean

and

free

of

oil or fuel mix·

ture.

15.

Operate

the

chain saw only in well ventilated areas.

16. Do

not

operate

a chain saw

in

a tree.

17. All chain

saw

service,

othe

r

than

the

items listed in the

Owner's

l\-lanual

maintenance

instructions,

should

be

performed

by

competent

chain saw service personnel.

Safety

Warning

(e.g., if

improper

tools

are used

to

remove

the

flywheel,

or

if

an

improper

tool

is

used

to

hold

the

flywheel in

order

to

remove the

clutch,

structural

damage

to

the

flywheel

could

occur

which

could

subsequently

cause

the

flywheel

to

burst).

18. Guard against kickback. Kickback

is

the

upward

motion

of

the

guide

bar

which

occurs

when

the

saw chain

at

the

nose

of

the

guide

bar

contacts

an

object.

l<ickback can

lead to dangerous loss

of

control

of

the

chain saw.

TO

A

VOID

KICKBACK,

Hold

the

chain saw firmly with

both

hands.

Don't

over

reach.

Don't

let

the

nose

of

the

guide bar

contact

a log,

branch,

ground

or

any

other

obstruction.

Cut

at

high

engine speeds.

Don't

cut

above

shoulder

height.

Follow

manufacturer's

sharpening

and

maintenance

instructions

for

the saw chain.

19. When

bucking

a log,

it

is

important

to

make sure

foot-

ing

is

firm

and

weight

is

evenly

distributed

on

both

feet.

If

possible,

the

log

should

be raised

and

supported

by

use

of

limbs, logs or chocks.

When

bucking

on a slope, alw·ays

stand

on

the

uphill

side

of

the

log, as illustrated in Figure 9. When

"cutting

through",

release

the

cQtting pressure near

the

end

of

the

cut. This will

maintain

complete

control

witl;lOut

relaxing

your

grip

on

the

chain saw handles

and

will

avoid allowing

the

saw chain

to

contact

the

ground.

Upon

completion

of

a

cut,

ensure

the

saw chain

is

stop-

ped

before

moving

the

chain saw.

20. As

the

felling

cut

gets close

to

the

hinge the

tree

should

begin

to

fall. If

there

is

any

chance

that

the

tree

might

not

fall in

the

desired direction.

or

may

roc~

back ,and

bind

the

S1\\i

chain,

stop

cutting

before

the

felling

back

cut

is

completed

and

use wedges made

of

wood,

plastic

or

aluminum

to

open

the

cut

and

drop

the tree along

the

desired line

of

fall.

When

the

tree begins

to

fall, remove

the

chain saw

from

the

cut,

stop

the

engine,

put

the

ehain saw

down,

then

use

the

retreat

path

planned. Be alert

for

overhead limbs

falling and watch

your

footing.

•

Pioneer 1073 User manual

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