Rockwell Shop RS8080 User Manual

139cc 40CM PETROL LAWN MOWER EN

RS8080

RS8080

1

2

20

3

4

5

19

18

14
16

21

6

17

7

8

9

10

11121315

16

RS8080

5

10

4

A

4

5

B2

C D1

B1

4

B3

18

5

5

19

18

D2 E

18

D2 E

RS8080

MAX

MIN

F G

H1 H2

1

STOPSLOW

FAST

CHOKE
(STAR)

2

I J

0.75mm

K L1

0.75mm

MAX

MIN

1

2

STOPSLOW

FAST

CHOKE
(STAR)

F G

H1 H2

I J

K L1

RS8080

L2 M

22

139CC 40CM PETROL LAWN MOWER EN

COMPONENT LIST

1

FOAM GRIP HANDLE

2

THROTTLE LEVER

3

UPPER HANDLE

4

LOCK CAM LEVER

5

LOWER HANDLE

6

CABLE CLIP

7

4-STROKE ENGINE (ENGINE COVER)

8

AIR FILTER COVER

9

SPARK PLUG CAP

10

STEEL DECK

11

MUFFLER COVER

12

OIL TANK CAP

13

PULL STARTER HANDLE

14

CUTTING HEIGHT ADJUSTMENT LEVER

15

FUEL TANK

16

FASTENING NUT FOR LOWER HANDLE

17

FUEL TANK CAP

18

SAFETY FLAP

19

GRASS CATCHER

20

PULL STARTER HOOK

21

SOCKET SPANNER FOR SPARK PLUG

22

OIL DRAIN PLUG (SEE FIG. M)

Not all the accessories illustrated or described are included in st andard deliv ery.

*

6

139CC 40CM PETROL LAWN MOWER EN

ACCESSORIES

Plastic grass catcher 1
Socket spanner for spark plug 1
Cable clips 1

Use good quality accessories marked with a well­known brand name. Choose the type according
to the work you intend to undertake. Refer to the
accessory packaging for further details. Store
personnel can assist you and offer advice.

WARNING! Read all safety
warnings and all instructions.

Failure to follow the warnings and instructions may

result in electric shock, re and/or serious injury.

Save all warnings and instructions for future
reference.

Safe operation practices for pedestrian controlled
rotary lawnmowers

1) Training

a) Read the instructions carefully. Be familiar with

the controls and the proper use of the equipment;

b) Never allow children or people unfamiliar with

these instructions to use the lawnmower. Local
regulations can restrict the age of the operator;

c) Never mow while people, especially children, or

pets are nearby;

d) Keep in mind that the operator or user is

responsible for accidents or hazards occurring to
other people or their property.

2) Preparation

a) While mowing, always wear substantial footwear

and long trousers. Do not operate the equipment
when barefoot or wearing open sandals;

b) Thoroughly inspect the area where the equipment

is to be used and remove all objects which can be

thrown by the machine;

c) WARNING – Fuel is highly ammable

- Store fuel in containers specically designed for
this purpose;

- Refuel outdoors only and do not smoke while
refueling;

- Add fuel before starting the engine. Never remove
the cap of the fuel tank or add fuel while the
engine is running or when the engine is hot;

- If fuel is spilled, do not attempt to start the engine
but move the machine away from the area of
spillage and avoid creating any source of ignition
until fuel vapours have dissipated;

- Replace all fuel tank and container caps securely;

d) Replace faulty silencers;
e) Before using, always visually inspect to see that

the blade, blade bolts and cutter assembly are
not worn or damaged. Replace worn or damaged
blades and bolts in sets to preserve balance;

f) On multi-bladed machines, take care as rotating

one blade can cause other blades to rotate.

3) Operation

a) Do not operate the engine in a conned space

where dangerous carbon monoxide fumes can
collect;

b) Mow only in daylight or in good articial light;
c) Avoid operating the equipment in wet grass, where

feasible;

d) Always be sure of your footing on slopes;
e) Walk, never run;
f) For wheeled rotary machines, mow across the

face of slopes, never up and down;

g) Exercise extreme caution when changing direction

on slopes;

h) Do not mow excessively steep lopes;
i) Use extreme caution when reversing or pulling the

lawnmower towards you;

j) Stop the blade(s) if the lawnmower has to be tilted

for transportation when crossing surfaces other
than grass, and when transporting the lawnmower
to and from the area to be mowed;

k) Never operate the lawnmower with defective

guards, or without safety devices, for example

deectors and/or grass catchers, in place;

l) Do not change the engine governor settings or

overspeed the engine;

m) Start the engine or switch on the motor carefully

according to instructions and with feet well away
from the blade(s);

n) Do not tilt the lawnmower when starting the

engine or switching on the motor, except if the
lawnmower has to be tilted for starting. In this
case, do not tilt it more than absolutely necessary
and lift only the part which is away from the
operator;

o) Do not start the engine when standing in front of

the discharge chute;

p) Do not put hands or feet near or under rotating

7

139CC 40CM PETROL LAWN MOWER EN

parts. Keep clear of the discharge opening at all
times;

q) Never pick up or carry a lawnmower while the

engine is running;

r) Stop the engine and disconnect the spark plug

wire, make sure that all moving parts have come
to a complete stop;

- Before clearing blockages or unclogging chute;

- Before checking, cleaning or working on the
lawnmower;

- After striking a foreign object. Inspect the
lawnmower for damage and make repairs before
restarting and operating the lawnmower;

- If lawnmower starts to vibrate abnormally (check
immediately);

- Whenever you leave the lawnmower;

- Before refueling;

4) Maintenance and storage

a) Keep all nuts, bolts and screws tight to be sure the

equipment is in safe working condition;

b) Never store the equipment with fuel in the tank

inside a building where fumes can reach an open

ame or spark;

c) Allow the engine to cool before storing in any

enclosure;

d) To reduce the re hazard, keep the engine,

silencer, and fuel storage area free of grass,
leaves, or excessive grease;

e) Check the grass catcher frequently for wear or

deterioration;

f) Replace worn or damaged parts for safety;
g) If the fuel tank has to be drained, this should be

done outdoors.

SYMBOLS

Appropriate ear, eye, and head
protection must be worn

Read instruction handbook before
operation this machine

Keep bystanders away.

Beware of sharp blades - remove
spark plug lead before maintenance.

RCM approval mark

ABN: Australian Business
Number. By this number, business
information such as entity type,
status, business location etc. can be

found at website http://abr.business.

gov.au.
ABN of Positec Australia Pty Limited
is 14 101 682 357

8

139CC 40CM PETROL LAWN MOWER EN

TECHNICAL SPECIFICATIONS

Engine displacement
Maximum engine power
Max cutting dia .
Cutting height range
No load sp eed
Cutting height position
Ignition
Fuel tank capacity
Oil tank capacit y
Machine weight
Engine
Collection capacity

139cc

2.5KW
40cm

25-75 mm

3000/min

C.D.I

0.8L

0.6L

25 kg

4-stroke engine

40L

ASSEMBLY

Lift your lawnmower out of the carton.

This will require two people. Make
sure that you have sufcient space to put
the lawn mower down. Keep your feet apart
so that you have a stable stance, bend at the
knees and keep your back straight.

1. ASSEMBLY OF THE HANDLES (See Fig. A)

1) Fit the two lower handles(5) to the handle

brackets. Tighten it in clockwise direction
with the screws and nuts (16). Making sure
the square protrusion on the bolt inserts fully
into the handle bracket. Pay special attention
to the orientation of the bolt and nut. The nut
should be located outside of the handle and
handle bracket to ensure the catcher can be
attached to the mower.

2) Fit the Upper Handle to the two Lower

Handles (5) as shown in Fig.B1. Pushing the
Cam Lock (4) outside to tighten and then lock
it upwards as shown in Fig. B2 & B3.

2. ASSEMBLY OF THE GRASS CATCHER (See
Fig. C)

The grass catcher(19) is composed of two
sections. Locate the top half on the top of the
bottom one, and interlock them together by
aligning the lugs and slots. Pushing the two
halves together until clicked into place.
NOTE: Start assembling from one side and then

the middle part , and nally assembly the other

side as shown in Fig.C. Ensure that all the lugs
clicked into the slots tightly.

3. INSTALLING/REMOVING THE GRASS
CATCHER (See Fig. D1-D2)
NOTE: Always t the grass catcher before
starting the engine.

1) Raise the safety ap (18) and hold it up.

2) Pick up the grass catcher (19) by the handle

8

and locate grass catcher onto hooks on the
mower deck.

3) Release the safety ap. Ensure the grass

catcher is installed securely.

4) To remove the grass catcher, raise the safety

ap (18) and hold it up, lift the grass catcher

to release the grass catcher from hooks on
the mower deck.

WARNING! Before you carry out any

repairs or servicing work on the mower,
you must ensure that the blade is not turning
and that the spark plug cap is disconnected
and moved away from the spark plug.
The lawnmower shall not be operated without
either the entire grass collection catcher or
the guard in place.

OPERATION INSTRUCTION

1. BEFORE STARTING THE ENGINE

CAUTION! The following procedures and

adjustments must be performed before
the engine is started. Do not attempt to make
any of these adjustments with the engine is
running.

2. OIL TYPE

Always use high quality detergent oil

classied SAE 30 oil. Never use additives with

recommended oil.
To prolong the life of your engine it is important

that the oil is changed after the rst 5 hours of

use - refer to “Maintenance”.

3. FUEL TYPE

Always use clean, fresh unleaded fuel. Purchase
fuel in quantities that can be used within 30
days. Never mix oil with fuel.

Fill to base of neck to allow for fuel
expansion. Do not overll the fuel tank.

9

139CC 40CM PETROL LAWN MOWER EN

4. FILLING WITH ENGINE OIL (See Fig. E-F)
CAUTION! To prevent engine damage the
engine is shipped without oil or fuel. The
engine must be lled with the correct grade
of oil and fuel before starting the engine.

Check the engine oil level with the engine
stopped and the mower on a level surface.

1) Remove the oil ller dipstick and wipe oil

from it with a clean cloth (Fig. E).

2) Insert the dipstick into the oil ller neck,

screw it in and then screw it out.

3) Check the oil level. The oil level must
between the Min and Max marks on the

dipstick (Fig. F). If near the lower level, ll

to upper level with the recommended oil

(SAE30). Do not overll. Wipe away any spilt

oil.

NOTE: Running the engine with a low oil level
will cause engine damage. Recommend use
of high detergent, premium quality 4-stroke
engine oil. Use of non-detergent oil can
shorten the engine’s service life and using
2-stroke oil will damage the engine.

5. FILLING WITH FUEL

WARNING! Fuel is highly inammable

and extreme precaution must be taken
when handling or working with it. Keep out
of reach of children.

1) Clean the area around the fuel tank cap (17)

before removing the cap. For rst time use,

remove the warning label and check oil level
before starting the engine.

2) Rell the tank if the fuel level is low. Refuel

carefully to avoid overlling or spilling fuel.

There should be no fuel in the tank neck.

3) Clean up any overow or splash of fuel

before starting the engine.

4) Tighten the tank cap securely after lling.

Refuel in a well-ventilated area with the

engine stopped. Do not smoke or allow

ames or sparks in the area where the engine

is being refueled or where fuel is stored.
Avoid repeated or prolonged contact with
skin or breathing of vapor.

NOTE: Fuel should be stored in an approved
container. Never buy or store more than 30
days supply of fuel. Do not mix oil with fuel.

6. STARTING THE ENGINE (See Fig. G-H)

WARNING! Do not operate the machine

in a closed or poorly ventilated area
as the exhaust gas contains poisonous
substance. Keep hands, feet, hair and
clothing away from all the moving parts of
the machine. The exhaust and other parts
of the machine will become hot during use.
Make sure that the blade is securely fastened
before starting the engine.
NOTE: To start the engine, make sure that the

spark plug cap (9) is located on the spark plug

and the machine is lled with sufcient oil and

fuel.

Step1: Throttle lever (2)-STARTING (See Fig. G)

For starting a cold engine, move the throttle
lever to the CHOKE position.
For starting a warm engine, move the throttle
level to the SLOW position.

Step2: Pull starter handle (13) (See Fig. H1-H2)

With your right hand, slowly but rmly pull

the starter handle and rope out until you feel
resistance. At this point pull briskly on the
starter rope. If the engine fails to start after three
pulls, repeat the start process. After the engine
starts, return the starter rope gently and hook
the start handle (13) to the pull starter hook (20).

Step3: Throttle lever (2)-IDLE SPEED

Once the engine is running, move the throttle
level to the position FAST (See Fig. G).

Clear a ooded engine

If the engine won’t start after you operating the

starter several times, the engine may be ooded

with excess fuel. Use following procedure to

clear and start a ooded engine.

1) Move the throttle level to STOP (See Fig. G).

2) Remove the spark plug, dry it, then reinstall

it.

3) Move the throttle level to CHOKE position.

4) Operate the starter as described above.

7. STOPPING THE ENGINE

Move the throttle lever to the STOP position (See
Fig. G).

8. ADJUSTING THE CUTTING HEIGHT (See Fig. I)

WARNING! STOP THE ENGINE, AND WAIT

FOR BLADE TO COME TO A COMPLETE
STOP. The blades continue to rotate after the
machine is switched off, a rotating blade can

cause injury.

10

139CC 40CM PETROL LAWN MOWER EN

CAUTION: Do not touch rotating blades.

For the rst mow of the season, a high cutting
adjustment should be selected.

The lawnmower can be set to 8 cutting heights
between 25mm and 75mm. For this purpose,

move the cutting height adjustment lever (14)
outwards then adjusted to the preferred position.

9. MOWING
Always observe the strictest safety
procedures when using the lawnmower.

Carefully read the safety instructions of this
manual before using the lawn mower.

Start the engine and allow it run. See “Starting
the engine”.
When it is time to start mowing, move the
throttle lever to its FAST position (See Fig. G).
To stop the engine, move the throttle lever to the
STOP position (See Fig. G).

Keep a rm grip on the upper handle and walk,

never run with the mower, be very careful when
mowing uneven or rough ground. Mow across
slopes, never up and down. Be careful when
changing the direction of the mower on a slope.
Do not use the mower on a steep slope of more
than 20°.
The best results will be achieved if the grass is
dry. Wet grass will tend to clog the blade and
the grass collection system. Grass grows at
different rates at different times of the year.

Never use the lowest cutting height for the rst

cut of the season or in drought conditions. Only
about one third of the grass height should be
cut.
If the lawnmower will not collect the cuttings

efciently, the grass discharge chute may be

blocked. The grass catcher may be full, or the
underside of the mower deck may be clogged.

10. EMPTY/ATTACH THE GRASS CATCHER

As soon as you see mown grass debris on the
lawn, the grass catcher needs to be emptied.

IMPORTANT! Before you remove the grass
catcher, move the throttle lever to the STOP
position and wait the blade system reaches a
standstill.

1) To remove the grass catcher, raise the safety

ap with one hand and remove the grass

catcher using its handle with your other
hand.

2) To maintain safety, the safety ap will close

back to cover the rear discharge opening,

when you release the ap.

3) Empty the grass clippings from the grass
catcher into the appropriate bin. Check with

your local council for more information. Ret

glass catcher as above instruction.

4) If any grass clippings are caught in the
discharge chute, clean it using a broom or
similar extension.

5) Do not remove grass debris in the mower

casing or on/around the blades by hand or

with your feet. Instead use suitable tools
such as a brush or broom.

6) To ensure that the grass clippings can be
blown into glass catcher, the discharge chute
and the inside of the mower deck must be
cleared of any blockage.

11. REPLACING THE BLADES (See Fig. J)

Always check the sharpness of blades before
cutting grass. If the blades are worn excessively
and becomes pitted or blunt they should be
replaced. The sharpness of the blade will affect
the performance of the lawn mower.

For safety reasons we recommend that the
blades will only be changed by persons
qualied and authorized to do so.

WARNING! Before replacing the blades,

ensure that the engine is switched off
and the spark plug cap is disconnected and
moved away from the spark plug.

1) You will need garden gloves (not provided)

and a spanner/wrench (not provided) to

remove the blade holder.

2) Hold the blade holder and unscrew the blade

bolt counterclockwise using a spanner /

wrench. Remove the blade bolt, retaining
washer and the blade.

3) Fit a new blade, locate the blade holder on

the two studs on the blade ange and then
ret the washer and bolt. Make sure the blade
is correctly located, then rmly tighten the

bolt. Do not over tighten (Do not less than 45
N.m tight torque).

The upturned ute of the blade must face the

motor side of the deck so the blades can throw
the grass into the catcher. (Do not less than 45
N.m tight torque).

Always handle the blade with care-sharp

11

139CC 40CM PETROL LAWN MOWER EN

edges could cause injury USE GLOVES
Renew your metal blades and bolts after
50Hrs mowing or 2yrs which ever is sooner
regardless of condition.
If the blade is cracked or damaged replace it
with a new one.

MAINTENANCE

1. CLEANING
WARNING! Make sure before carrying
out any cleaning or maintenance that

the spark plug cap is disconnected from
the spark plug and is moved away from the
spark plug!

To ensure the best performance of your lawn
mower, it is important to keep it clean. Always
clean your lawnmower immediately after use.
Do not allow grass cuttings and other debris
to become dry and hard on any of the mower
surface. This will directly affect the cutting and
grass collection performance. Make sure that the
underside of the lawnmower deck is clean and
clear.

Ensure the discharge chute and safety ap

are clean. The grass catcher must always be
emptied each use. Make sure that the exterior of
the engine is clear of all debris, cuttings and dirt.

Maintenance schedule

First 5 hours

of use

Air lter ―― Check Replace Replace

Spark
plug

Engine
oil

Check Check Clean Replace

Replace Check Check Replace

2. SPARK PLUG (See Fig. K)

1) Once the engine has cooled, remove

the spark plug using the socket spanner
supplied.

2) Clean the plug with a wire brush.

3) Using a feeler gauge, set the gap to 0.75mm.

4) Install the spark plug carefully by hand, to

avoid cross-threading.

12

12 Hours

of use

25 hours

of use

50 hours

of use

5) After the spark plug is seated, tighten with
spanner to compress the washer.

3. AIR FILTER (See Fig. L1-L2)

Unclip the air lter cover and remove the sponge
lter element. To avoid objects falling into the air
tank, replace the air lter cover. Wash the lter

element in warm soap water, rinse and allow to

dry naturally. Saturate the air lter element with
fresh engine oil approx 60ml. Wrap the lter in a

clean cloth and squeeze out excess oil for avoid
possible mower starting failure. (Do not wring

out or twist the lter as this will cause damage to
the foam) place air lter into the base.

WARNING! Never run the engine without

the air lter element installed.The
“foam only” style air lter system works
by trapping dirt and debris though the use
of motor oil spread throughout the oil foam
holding medium. A dry or non-oiled oil foam
lter will trap only the largest particles. If
the air lter element is foam only, it MUST be
oiled and serviced regularly. Your foam lter
requires replacement every 3 months or after
25 hours of use, whichever occurs rst, more
often under dusty conditions.

4. CHANGING THE OIL (See Fig. M)

The oil drain plug (22) is located under the oil

ller.
Tilt the lawnmower towards the oil ller, have

a container ready to catch the oil and remove
the drain plug. Once the oil has been emptied,
replace the dipstick and wipe clean any
spillages.

Rell of SAE30 oil. When the dipstick is rested
on the ller pipe, the oil level must be between

the min and max marks on the dipstick. See

‘’Filling with Engine Oil’’. Do not overll.
Start the engine and allow it run briey. Stop the

engine, wait one minute and check the oil level.
Top up if necessary.

5. STORAGE
CAUTION! Fuel left in the fuel tank over the
winter period will become state and the
engine will not start.

For long term storage at the end of the season,
the oil tank should be drained. On the last mow
of the season let the mower run until it stops

139CC 40CM PETROL LAWN MOWER EN

checking there is no more fuel in the fuel tank.
Then remove the oil drain plug (22) as shown
in Fig M by turning anticlockwise. Check that
there is no more oil being released from engine
and re attached the drain plug by turning in the
clockwise direction.
Make sure the lawnmower has been thoroughly
cleaned before storing it in a clean dry place.

13

139CC 40CM PETROL LAWN MOWER EN

6. TROUBLE SHOOTING

PROBLEM POSSIBLE FAULT REMEDY

Engine will not
turn over

Engine smokes

Engine runs
then stops

Engine will not
start

Engine runs
rough

Engine
vibrates
excessively

Uneven cut

Discharge
chute blocks

Incorrect oil level. Check oil level.

Obstruction under deck. Remove obstruction.

Excess oil level. (Blue /white/grey smoke) Check oil level.

Air cleaner cartridge soaked or blocked
(Black smoke).

Fuel starvation. Fill fuel tank.

Fuel cap vent blocked.
Fuel tap closed.

Engine under load. Raise height of cut.

Fuel starvation.

Engine cold. Set throttle to ‘choke’ position.

Incorrect/contaminated fuel.

Spark plug lead disconnected. Connect spark plug lead.

Faulty spark plug. Clean and adjust gap or replace.

Spark plug lead becoming disconnected in
use.

Faulty spark plug. Clean and adjust gap or replace.

Air cleaner blocked. Service air cleaner.

Incorrect/contaminated fuel. Drain tank and ll with correct fuel.

Mounting bolts loose. Tighten bolts

Blade bolt loose. Tighten bolt

Blade out of balance. Check/Replace Blade

Bent crankshaft. Consult manufacturer

Undulating ground conditions Change direction of travel

Blade worn Replace Blade

Blade out of balance Check/Replace Blade

Wheels / roller damaged Inspect and replace as necessary

Grass is wet Mow dry grass

Cut height too low Increase cut height

Grass catcher full Empty grass catcher

Airow through the grass catcher is

restricted

Engine speed too slow Set throttle to Max position

Service air cleaner.

Clean fuel cap vent.
Check fuel tap position

Fill fuel tank.
Check fuel tap position

Drain fuel tank and ll with correct

fuel.

Connect spark plug lead.disconnected in
use.

Clean the grass catcher

14

139CC 40CM PETROL LAWN MOWER EN

Mower is hard
to push

Poor grass
collection

Cut height too low Increase cut height

Wheels / roller damaged Inspect and replace as necessary

Airow through grass catcher is restricted Clean the grass catcher

Discharge chute blocked Remove blockage

Wet grass Mow dry grass

Grass catcher full Empty grass catcher

Engine speed too slow Set throttle to Max position

Staple your purchase

receipt here

Before returning this product for

warr anty or any other reason, ple ase

call.

POSITEC AUSTRALIA PTY LIMITED

ABN 14 101 682 357

Unit 15, 23 Narabang Way Belrose 2085 NSW Australia

FREE CALL 1300 8 89 028

EMAIL:of[e-mail]

15

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