GARDEN MASTER GMPLMCNC Installation manual

SAFETY AND OPERATING MANUAL
4HP 46CM PETROL LAWN MOWER GMPLMCNC
CAUTION: Carefully read this entire Instruction Manual before using this product

2
GENERAL POWER TOOL SAFETY
WARNINGS
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
PETROL LAWN MOWER
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 – Petrol 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 petrol while the
engine is running or when the engine is hot;
- If petrol 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 petrol 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
collet;
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) Disengage all blade and drive clutches before
starting the engine;
n) Start the engine or switch on the motor carefully
according to instructions and with feet well away
from the blade(s);
o) 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;
p) Do not start the engine when standing in front of
the discharge chute;
q) Do not put hands or feet near or under rotating
parts. Keep clear of the discharge opening at all
times;
r) Never pick up or carry a lawnmower while the
engine is running;
s) Stop the engine and disconnect the spark plug
wire, make sure that all moving parts have come
to a complete stop and, where a key is tted
remove the key;
- 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

3
restarting and operating the lawnmower;
- If lawnmower starts to vibrate abnormally (check
immediately);
t) Stop the engine and disconnect the spark plug
wire, make sure that all moving parts have come
to a complete stop and, where a key is tted
remove the key:
- Whenever you leave the lawnmower;
- Before refueling;
u) Reduce the throttle setting during engine shut
down and, if the engine is provided with a shut-
off valve, turn the fuel off at the conclusion of
mowing;
v) Go slow when using a trailing seat.
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 petrol 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, battery compartment and petrol 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
Read instruction handbook before
operation this machine.
Warning
Keep bystanders away.
Beware of sharp blades - remove spark plug
lead before maintenance.
Appropriate ear, eye, and head protection
must be worn.
Forbid smoking and ring
Warning! The lawnmower exhaust gas
contain poisonous substances. Do not run
the engine in closed or poorly ventilated
areas.
Blade continues to rotate after the machine
is switched off. Wait until all machine
components have completely stopped
before touching them.
Hot surfaces will burn ngers or palms
Fast position: for mowing
Slow position: for idling
C-tick approval mark
CHOKE
FAST
SLOW
STOP

4
1
2
7
17
18
19
20
8
9
10
111213151416
3
4
5
6
21 22

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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 lter cover
9. Spark plug cap
10. Steel deck
11. Mufer 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 ap
19. Grass catcher
20. Pull starter hook
21. Socket spanner for spark plug
22. Spanner
23. Oil drain plug (See Fig. M)
Not all the accessories illustrated or described
are included in standard delivery.
ACCESSORIES
Grass catcher 1
Spanner 1
Socket spanner for spark plug 1
Cable clips 2
We recommend that you purchase your accessories
from the same store that sold you the tool. Use good
quality accessories marked with a well-known 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.
TECHNICAL SPECIFICATIONS
Engine power: 4HP
Engine displacement: 139cc
Max cutting dia: Ø46cm
Cutting height range: 19-70mm
Engine: 4-stroke engine
Wheels size: 150mm/front & 175mm/rear
Collection capacity: 47L
Weight: 28kg
ASSEMBLY
WARNING! Lift your lawnmower from the
carton required 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 position, bend at the knees and keep your
back straight.
1. ASSEMBLY OF THE HANDLE (SEE FIG. A-B)
1) Remove the packaging from the handle.
2) Fit the lower handle (5) to the steel deck as shown in
Fig. A. Tighten it with the screws and nuts (16) included
in carton box. The nuts must be tted outside of the
deck (See Fig. B).
Fig.A
Fig.B
2. ASSEMBLING THE GRASS CATCHER (SEE FIG. C1-C3)
1) Assemble the handle of the catcher according to the
process shown in Fig. C1.
2) Assemble the two halves of grass catcher (19). Snap
together the top and bottom grass catcher halves by
pushing all the “snap ts” together around the edges,
start from the rear and work towards the front.
Fig.C1

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Fig.C2
Fig.C3
3. INSTALLING/REMOVING THE GRASS CATCHER
(SEE FIG. D1-D2)
NOTE: Always t the grass catcher before start the
engine.
1) Raise the safety ap (18) and hold it up.
2) Pick up the grass catcher (19) by the handle and
position grass catcher on the hooks on the mower deck
as shown in Fig. D1.
3) Release the safety ap. Ensure the grass catcher is
installed securely.
4) To removing the grass catcher, raise the safety ap
(18) and hold it up, lift the grass catcher to make the
hooks away from 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
mower has been disconnected from the mains
supply. The lawnmower shall not be operated
without either the entire grass collection catcher
or the guard in place.
Fig.D1
1
2
2
Fig.D2
OPERATION INSTRUCTION
1. BEFORE START 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 petrol. Purchase
fuel in quantities that can be used within 30 days.
Never mix oil with petrol.
Fill to base of neck to allow for fuel expansion. Do
not overll the fuel tank.
4. FILLING WITH ENGINE OIL (SEE FIG. E-F)
CAUTION! To prevent engine damage the
engine is shipped without oil or petrol. The
engine must be lled with the correct grade of oil
and petrol 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 (See Fig. E).
2) Insert the dipstick into the oil ller neck, but do
not screw it in.
3) Check the oil level. The oil level must between
the Min and Max marks on the dipstick (See 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 high
detergent, premium quality 4-stroke engine oil.
Use non-detergent oil can shorten the engine’s

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service life and using 2-stroke oil will damage the
engine.
Fig.E
Fig.F
5. FILLING WITH FUEL
WARNING! Petrol 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 petrol tank cap (17)
before removing the cap. Remove the warning label,
check the fuel level.
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 petrol 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 the engine is refueled or
where petrol is stored. Avoid repeated or prolonged
contact with skin or breathing of vapor.
NOTE: Petrol should be stores in an approved
container. Never buy or store more than 30 days
supply of petrol. Do not mix oil with petrol.
6. STARTING THE ENGINE (SEE FIG. G-I)
WARNING! Do not operate the machine in
a closed or poorly ventilated areas as the
exhaust gas contain 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 petrol.
Step1: Throttle lever (2)-STARTING (See Fig. G)
For start a cold engine, move the throttle lever to the
CHOKE position.
For start a warm engine, move the throttle level to
the MIN position.
Fig.G
Step2: Pull starter handle (13) (See Fig. H1-H2)
With right hand, slowly but rmly pull the starter
handle and rope out until you felt resistance. Let the
rope recoil, then pull briskly. If the engine fails to
start after three pulls, repeat the start process. When
the engine starts, return the starter rope gently.
Fig.H1
Fig.H2
Step3: Throttle lever (2)-RUNNING
Once the engine is running, move the throttle level to
the position MIN (Fig. I).
Clear a ooded engine
If the engine won’t start after you operated the

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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 (Fig. I).
2) Remove the spark plug, dry it, then reinstall it.
NOTE: install the spark plug carefully by hand, to
avoid cross-threading. After the plug is seated,
tighten 1/8 to1/4 turn with socket spanner of spark
plug to compress the washer.
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. J)
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.
CAUTION: Do not touch rotating blades.
For the rst cutting of the season, a high cutting
adjustment should be selected.
The lawnmower can be set to 7 cutting heights
between 19mm and 70mm. For this purpose, move
the cutting height adjustment lever (14) outwards
then adjust to the preferred position.
Fig.I
1
2
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 wish to start mowing, move the throttle lever
to its MAX position (Fig. G).
To stop the engine, move the throttle lever to the
STOP position (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 result 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 time of the year.
Never use the lowest cutting height for the rst cut of
the season or in drought conditions. Only about one
thirds 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 COLLECTION 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,
switch off the motor and wait until the blade
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 debris in the glass collection
catcher, and ret glass catcher as above instruction.
4) If any grass residues are caught in the opening,
clean it using a pushing bar.
5) Do not remove grass debris in the mower casing
or on the blade by hand or with your feet. Instead use
suitable tools such as a brush or broom.
6) To ensure that the cutting grass can be blown into
glass catcher, the discharge opening and inside the
mower casing must be cleared of any blockage.
11. REPLACING THE BLADE (SEE FIG. J)
Maintain the sharpness of the blade when cutting
grass if the blade has worn excessively and becomes
pitted or blunt it should be replaced. The sharpness
of the blade will affect the performance of the lawn
mower.
For safety reasons we recommend that the blade
will only be changed by persons qualied and
authorized to do so.
WARNING! Before replacing the blade,
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 to remove the blade.
2) Hold the blade and unscrew the blade bolt

9
counterclockwise using a spanner wrench. Remove
the washer and the blade.
3) Fit a new blade and bolt kit, locate the blade on
the two studs on the blade ange and then replace
the washer and bolts. Make sure the blade is
correctly located, then rmly tighten the bolt. Do not
over tighten.
The up turn of the blade must project into the motor
compartment.
Always handle the blade with care-sharp edges
could cause injury USE GLOVES
Renew your metal blade 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.
Fig.J
MAINTENANCE
1. CLEANING
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 grass discharge ap
are clean. The grass catcher must always be emptied
after use. Make sure that the exterior of the engine is
clear of all debris, cuttings and dirt.
Maintenance schedule
12 hours
of use
24hours
of use
36hours
of use
Air lter Clean Clean Replace
Spark plug Check Clean Replace
Engine oil Check Replace Check
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.
5) After the spark plug is seated, tighten with spanner to
compress the washer.
FigS
Fig.K
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.
WARNING! Never runt he engine without the
air lter element installed.
Fig.L1
Fig.L2
4. CHANGING THE OIL (SEE FIG. M)
The oil drain plug (23) 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 (i.e. not screwed in place), the oil level must

10
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.
Fig.M
23
5. STORAGE (SEE FIG. N1-N2)
CAUTION! Petrol left in the fuel tank over the
winter period will become state and the engine
will not start.
For long term storage and at the end of the season,
the oil tank should be drained. Remove the fastening
nut on Oil Drain Plug to drain the oil tank (See Fig. M ).
Make sure the lawnmower has been thoroughly cleaned
before storing it in a clean dry place.
NOTE: Before storage, remove the rst fastening nut and
loosen the second fastening nut for lower handle
(See Fig. N1).
Fig.N1
Fig.N2

11
6. TROUBLE SHOOTING
PROBLEM POSSIBLE FAULT REMEDY
Engine will not turn over
Engine starting bail arm lever
released. Operate engine starting bail arm lever
Incorrect oil level. Check oil level.
Obstruction under deck. Remove obstruction.
Engine smokes
Excess oil level. Check oil level.
Air cleaner cartridge oil soaked or
blocked. Service air cleaner.
Engine runs then stops
Fuel starvation. Fill fuel tank.
Fuel cap vent blocked.
Petrol tap closed
Clean fuel cap vent.
Check petrol tap position
Engine will not start
Engine under load. Raise height of cut.
Fuel starvation. Fill fuel tank. Check petrol tap position
Engine cold. Set throttle to ‘choke’ position.
Incorrect/contaminated fuel. Drain fuel tank and ll with correct fuel.
Spark plug lead disconnected. Connect spark plug lead.
Faulty spark plug. Clean and adjust gap or replace.
Engine runs rough
Spark plug lead becoming
disconnected in use.
Connect spark plug lead.
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.
Engine vibrates excessively
Mounting bolts loose. Tighten bolts
Blade bolt loose. Tighten bolt
Blade out of balance. Balance blade
Bent crankshaft. Consult your dealer
Uneven cut
Undulating ground conditions Change direction of travel
Blade worn Sharpen the blade
Blade out of balance Balance the blade
Wheels / roller damaged Inspect and replace as necessary

PROBLEM POSSIBLE FAULT REMEDY
Discharge chute blocks
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 Clean the grass catcher
Engine speed too slow Airow through the grass catcher is
restricted
Mower is hard to push
Cut height too low Increase cut height
Wheels / roller damaged Inspect and replace as necessary
Poor grass collection
Airow through the 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 fast position
WARRANTY
This product is warranted for a 2-year period for
home domestic use from the date of the original
purchase. If found to be defective in materials
or workmanship, the tool or the offending faulty
component will be replaced free of charge with
another of the same item. A small freight charge may
apply.
The warranty replacement unit only made
available by returning the tool to the place of
purchase with a conrmde register receipt.
Proof of purchase is essential.
We reserve the right to reject any claim where
the purchase cannot be veried.
This warranty does not include damage or defects to
the tool caused by or resulting from abuse, accidents,
alterations or commercial or business use.