Baumr-AG 660EX/MOWPSH6NDBMRADJF User manual

E&OE ©2017 Bäumr-AG
Petrol Powered Lawn Mowers
User Manual
[Revision 2.0 March 2017]
READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY
DAMAGE AND MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by
this manual may vary in appearance, assembly, inclusions, specifications, description and packaging.
The product is NOT supplied with engine oil, although traces of oil from the manufacturing
process may be present. It is essential to add adequate engine oil of the correct type to the
engine before use – see Checking and Changing Engine Oil. Failure to add engine oil will void the
product warranty.

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Safety
Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or
equipment or property damage if not understood or followed. Safety messages have the following symbols:
You WILL be KILLED or
SERIOUSLY INJURED if you do
not follow instructions.
You CAN be KILLED or
SERIOUSLY INJURED if you do
not follow instructions.
You CAN be INJURED if you do
not follow instructions or
equipment damage may occur.
It is important that you read and
understand the instruction manual before
use and keep the manual in a safe place
for future reference. Safety information
presented here is generic in nature – some
advice may not be applicable to every
piece of equipment. The term “equipment"
refers to your product, be it electrical
mains, battery or petrol engine powered.
Read all safety warnings and all
instructions. When using the equipment,
basic safety precautions detailed here
must always be followed to reduce the risk
of fire, electric shock, personal injury and
material damage.
IMPORTANT – Handle the equipment
safely and carefully.
BEFORE USE - If you are not familiar with
the safe operation/handling of the
equipment, or are in any way unsure of any
aspect of suitability or correct use it for
your application, you should complete
training conducted by a person or
organization qualified in safe use and
operation of this equipment, including
fuel/electrical handling and safety.
WARNINGS
•Read all safety warnings and all
instructions. When using the equipment,
basic safety precautions detailed here
must always be followed to reduce the
risk of fire, electric shock, personal injury
and material damage.
•Do not operate the equipment in
flammable or explosive environments,
such as in the presence of flammable
liquids, gases or dust. The equipment
may create sparks or heat that may
ignite vapours, dust etc
•Keep clear of moving parts.
•Equipment may be a potential source of
electric shock or injury if misused.
•Do not operate the equipment if it is
damaged, malfunctioning or is in an
excessively worn state.
•Do not allow others to use the
equipment unless they have read this
manual and are adequately trained.
General Work Area Safety
Work areas should be clean and well it.
Do not operate the equipment if
bystanders, animals etc are within
operating range of the equipment or the
general work area.
General Personal Safety
Keep packaging away from children - risk
of suffocation! Operators must use the
equipment correctly. When using the
equipment, consider conditions and pay
due care to persons and property.
Prevent unintentional starting of the
equipment - ensure equipment and power
source switches are in the OFF position
before connecting or moving the
equipment. Do not carry equipment with
hands/fingers touching any controls.
Remove any tools or other items that are
not a part of the equipment from it before
starting or switching on.
Stay alert and use common sense when
operating equipment. Do not overreach.
Keep proper footing and balance at all
times. Do not use equipment when tired or
under the influence of drugs, alcohol or
medication. This equipment is not intended
for use by persons with reduced physical,
sensory or mental capabilities.
You must wear appropriate protective
equipment when operating, servicing, or
when in the operating area of the
equipment to help protect from serious
injury, including eye injury, inhalation of
toxic fumes, burns, and hearing loss.
Always wear eye protection. Protective
equipment such as respirators, non-skid
safety shoes, hard hat, hearing protection
etc should be used for appropriate
conditions. Other people nearby should
also wear appropriate personal protective
equipment. Do not wear loose clothing or
jewellery, which can be caught in moving
parts. Keep hair and clothing away from
the equipment.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used. Use of dust collection can reduce
dust-related hazards.
General Equipment Use and Care
Do not force the equipment. Use the
correct equipment for your application. The
correct equipment will perform better and
be safer within its design parameters.
Do not use the equipment if the ON/OFF
switch malfunctions – any equipment that
cannot be controlled with the ON/OFF
switch is dangerous and must be repaired.
Use the equipment and accessories etc. in
accordance with these instructions, taking
into account working conditions and the
work to be performed. Using the equipment
for operations different from those intended
could result in hazardous situations.
Before use, inspect the equipment for
misalignment or binding of moving parts,
loose components, damage or any other
condition that may affect its operation. If
damaged, have the equipment repaired by
an authorized service center or technician
before use.
Always keep the equipment and
accessories (cutting tools, nozzles, bits
etc) properly maintained. Keep the
equipment, controls and handles dry and
free from dirt, oil and grease.
Store the equipment out of reach of
children or untrained persons. To avoid
burns or fire hazards, let the equipment
cool completely before transporting or
storing. Never place the equipment in
places where there are flammable
materials, combustible gases or
combustible liquids etc.
The equipment is not weatherproof, and
should not be stored in direct sunlight, at
high ambient temperatures or locations
that are damp or very humid.
Lawn Mower Use and Care
•The equipment is designed for domestic
use only.
•Always wear substantial footwear, such
as boots, and long trousers when
operating the product. Do NOT wear
open shoes and shorts.
•Check the work area before mowing and
remove any objects (stones etc) that
may be thrown by the mower or may
otherwise damage it.
•Avoid cutting wet or very tall grass. If
grass is tall, mow in severalpasses,
each time reducing the cut height.
•Do not use the equipment for purposes it
is not designed for, such as shredding
leaves or wood chipping.
•Avoid overly steep slopes when mowing
and, when mowing on an incline, mow
across the face of the incline, not up and
down it.
•Do not start self-propelled models
(where applicable) with the drive
mechanism engaged.
•Use caution when reversing or pulling
the equipment towards you, and
changing direction.
•After stopping the engine, always allow
all moving components (blades etc) to
stop moving before moving, lifting etc.
•Stop the engine if the equipment
requires tilting or moving over non-grass
surfaces.

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General Fuel Safety
Petrol/fuel/gasoline is extremely
flammable – keep clear of
naked flames or other ignition
sources.
•Do not spill fuel. If you spill fuel, wipe it
from equipment immediately – if fuel
gets on your clothing, change them
immediately
•Do not smoke near fuel.
•Always shut off the engine before
refuelling.
•Do not refuel a hot engine.
•Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly.
•Always refuel inwell ventilated areas.
•Always check for fuel leakage. If fuel
leakage is found, do not start or run the
engine until all leaks are fixed.
General Electrical Safety
•Inspect electrical equipment, extension
cords, power bars, and electrical fittings
for damage or wear before each use.
Repair or replace damaged equipment
immediately.
•Ensure all power sources conform to
equipment voltage requirements and are
disconnected before connecting or
disconnecting equipment.
•When wiring electrically powered
equipment, follow all electrical and
safety codes.
•Wherever possible, use a residual
current device (RCD).
•Electrically grounded equipment must
have an approved cord and plug and be
connected to a grounded outlet.
•Do not bypass the on/off switch and
operate equipment by connecting and
disconnecting the power cord.
•Do not use equipment that has exposed
wiring, damaged switches, covers or
guards.
•Do not use electrical equipment in wet
conditions or damp locations.
•Do not use electrical cords to lift, move
or carry equipment.
•Do not tie electrical cords in tight knots
and ensure electrical cords do not
present trip hazards.
General Service Information
•Have the equipment serviced or repaired
at authorized service centers by
qualified personnel only.
•Replacement parts must be original
equipment manufacturer (OEM) to help
ensure that equipment safety is
maintained.
•Do not attempt any maintenance or
repair work not described in this
instruction manual.
•After use, the equipment and
components may still be hot – allow the
equipment to cool and disconnect spark
plugs and/or electrical power sources
and/or batteries from it before making
adjustments, changing accessories or
performing repair or maintenance.
•Do not make adjustments while the
equipment is running.
•Perform all service related activities
under suitable conditions, such as a
workshop etc.
•Replace worn, damaged or missing
warning/safety labels immediately.
•Do not clean equipment with solvents,
flammable liquids or harsh abrasives.
DANGER
Running combustion engines in confined areas
CAN KILL IN MINUTES. Engine exhaust fumes
contain carbon-monoxide – a deadly gas that you
cannot smell or see.
NEVER run a combustion engine in confined areas
EVEN IF windows and doors are open. ONLY run
petrol engines OUTDOORS and away from doors,
windows and vents.
Do not operate the equipment in hazardous locations,
such as where there may be a risk of fire or explosions
from flammable liquids, gases or dust.
Do not operate the equipment in confined areas where
exhaust gases, smoke or fumes could reach dangerous
concentrations.
Do not refuel a combustion engine while it is running, on
or hot.
Never smoke while refuelling combustion engines or
handling flammable substances.
For generators, the electrical output is potentially lethal
and must only be connected to a fixed electrical
installation by an appropriately licensed person.
Be aware that the equipment may include hazardous
components, such as blades, hot surfaces and moving
parts.
Handle any flammable substance with extreme caution.

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Table of Contents
Safety...................................................................................................................................................2
Table of Contents...............................................................................................................................4
Applicable Models .............................................................................................................................5
Parts Identification.............................................................................................................................7
Before Use Checklist.........................................................................................................................8
Assembly ...................................................................................................................................................8
4-Stroke Engine Oil....................................................................................................................................9
Air Filter......................................................................................................................................................9
Fuel............................................................................................................................................................9
Priming the Fuel System......................................................................................................................9
Spark Plug .................................................................................................................................................9
Engine Starting and Stopping........................................................................................................10
Environmental Considerations.................................................................................................................11
Altitude...............................................................................................................................................11
Temperature......................................................................................................................................11
Using the Throttle.....................................................................................................................................12
Engine Safety Bar..............................................................................................................................12
Adjusting Cutting Height...........................................................................................................................13
Using the Grass Catcher..........................................................................................................................13
Using the Mulching Attachment ...............................................................................................................13
Using the Side Discharge Attachment......................................................................................................14
Using the Self-Propel Function ................................................................................................................14
Using the Deck Wash Function................................................................................................................14
Mowing Guidelines...................................................................................................................................15
Maintenance .....................................................................................................................................16
Maintenance Schedule.............................................................................................................................16
Checking and Changing Engine Oil.........................................................................................................17
Checking, Cleaning or Replacing the Air Filter.........................................................................................18
Air Filter Inspection and Cleaning......................................................................................................18
Spark Plug ...............................................................................................................................................19
Spark Plug Cleaning and Gap Checking...........................................................................................19
Spark Plug Removal/Installation........................................................................................................19
Cleaning Guidelines.................................................................................................................................20
Transportation and Storage............................................................................................................20
Troubleshooting...............................................................................................................................21
Specifications...................................................................................................................................23
Service and Maintenance Record..................................................................................................24

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Applicable Models
This manual applies to the following Bäumr-AG lawn mowers:
660EX / MOWPSH6NDBMRADJF 16” 139cc 4-Stroke
670EX / MOWPSH6KSBMRADJF 16” 139cc 4-Stroke
Electric Start
690SX Series II / MOWPSHBMRA6DW 16” 139cc 4-
Stroke Self-Propelled
700SX Series II / MOWPSHBMRA6CH 16” 139cc 4-
Stroke Self-Propelled
750SX / MOWPSHBMRA8CD 18” 165cc 4-Stroke Self-
Propelled
760SX Series II / MOWPSHBMRA9CH 19” 165cc 4-
Stroke Self-Propelled

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770SX Series II / MOWPSHBMRA9BS 19” 140cc 4-
Stroke Self-Propelled
880SX Series II / MOWPSHBMRA1CH /
MOWPSHBMRB1CG 21” 218cc 4-Stroke Self-Propelled
890SX Series II / MOWPSHBMRA1BS 21” 163cc 4-
Stroke Self-Propelled

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Parts Identification
Lawn mowers come with all parts required for normal domestic use. A basic toolkit may also be included. It is
strongly recommended that you familiarise yourself with all major components of the machine before using it
or performing any maintenance tasks.
Products detailed in this manual may vary in appearance, inclusions, description and packaging
from those shown or described. For example, the drive activation mechanism for self-propelled
mowers is not applicable to non-self-propelled types, or a side discharge chute may apply to some models.
This section shows typical major components common to most 4-stroke petrol powered lawn mowers; the
position of some components may also vary between models.
No. Name No. Name
1 Deck 13 Air Filter Cover (filter inside)
2 Fuel Filler and Tank 14 Engine Safety Bar (where applicable)
3
Handle
15
Fuel Primer (where applicable)
4 Choke or Throttle or Engine On/Off Control 16 Side Discharge Chute (where applicable)
5 Exhaust 17 Cut Height Adjuster
6 Oil Filler/Dipstick 18 Rear Guard
7 Cutting Blade 19 Drive Activation Bar/Bail (self-propelled models)
8
Handle Attachment Nut
20
Grass Catcher
9 Handle Adjustment Lever 21 Deck Wash Hose Connector (where applicable)
10 Spark Plug 22 Console (where applicable)
11 Starting Cord 23 Starting Cord Hook
12 Drive Mechanism (self-propelled models)
1
2
3
4
x
5
6
7
8
9
12
11
14
13
15
17
16
18
19
20
21
10
22
23

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Before Use Checklist
Ensure that you carry out all procedures below before starting the engine or operating the
equipment. All procedures described are generic in nature and slight variations between
different models may exist. Failure to follow the checklist and carry out the procedures correctly may
result in making the product warranty void. The product is NOT supplied with engine oil, although traces
of oil from the manufacturing process may be present. It is essential to add adequate engine oil of the correct
type to the engine before use – see Checking and Changing Engine Oil. Failure to add engine oil will void
the product warranty.
Assembly
Typically, the lawn mower requires minimal assembly. Prior to assembly, unpack all components and check
that all items have been received.
Handle
The handle comes assembled, however, must be attached to the lawn mower handle mounting brackets.
Note that the following procedure is typical and that there may be slight differences between models; for
example, on some machine the handle is attached using 2 screws and nuts per side.
1. Remove the handle attachment nuts and screws from the handle mounting brackets (C).
2. Pull the handle adjustment levers (D) out to unlock them and unfold the handle, then push the levers
back into the locked position. On some models that do not have adjustment, the top handle sections are
attached directly to the lower sections using screws and nuts, similarly to the procedure below.
3. Ensure that any cables/wires are running along the top of the handle, then place the ends of the handle
in position with the mounting brackets (E) – for some models, the bottom hole in each leg of the handle
goes over a spigot (F); for other models the handle is secured using 2 screws on each leg, with the
handle mounted to the outer face of the brackets. Note that some models may have additional holes that
can be used for changing the angle of the handle.
4. Insert the handle attachment screws (B) through the second hole in each handle leg from the inside,
then secure the handle with the handle attachment nuts (A). Firmly tighten (rotate right) the nuts.
5. Once the handle is secure, check that all cable/wires are
properly routed, without kinks etc, and are secured to the handle
with any supplied clips.
6. If the machine is equipped with a "console" (G) that houses the
throttle control, drink holder etc, place it in position over the
handle rails, and attach it using the supplied screws and curved
washers (H).
Blades
Some machines feature "cross-cut" blades (four-blade design). If this is the
case, pull them outward so they are straight – use caution as the cutting edge
of the blade is sharp.
B
A
D
E
F
G
H

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4-Stroke Engine Oil
The product is NOT supplied with engine oil, although traces of oil from the manufacturing
process may be present. It is essential to add adequate engine oil of the correct type to the
engine before use – see Checking and Changing Engine Oil. Failure to add engine oil will void the
product warranty.
Four-stroke engines require engine oil in the crankcase for lubrication of internal components. Severe or
irreparable damage may occur if the engine is allowed to run without engine oil. The engine oil level requires
regular maintenance. Check the engine oil level and ensure that the oil level is at or just under the maximum
level indicator.
Always check the engine oil level before starting the engine. See Checking and Changing Engine Oil.
Air Filter
The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal
damage to it. The air filter requires regular maintenance.
Always check the air filter before starting the engine. See Checking, Cleaning and Replacing the Air Filter.
Fuel
Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or other ignition
sources. • The engine must be cool before refuelling.
Adequately fill the fuel tank with the correct fuel type.
•Use non-ethanol unleaded petrol (higher RON values will provide best engine performance). Do not use
old or contaminated fuel.
To fill or top up fuel:
1. Place the machine in an upright position on a flat and level surface.
2. Clean the machine around the fuel filler so that no dirt or other material enters the engine when the cap
is removed.
3. Remove (rotate left) the fuel filler cap.
4. Using a funnel, carefully fill the tank with fuel. Do not fill above the top of the strainer (if equipped) or
otherwise overfill the tank.
5. When finished, re-install (rotate right) the fuel filler cap until firm. Wipe away any residual fuel from the
machine. If fuel has been spilt, move the machine away from the spillage before starting the engine.
Priming the Fuel System
For engines equipped with a fuel primer, it may be necessary to “prime” the
fuel system before attempting to start the engine. This means removing any
air from the fuel line and filling the carburettor with fuel. To prime:
1. Fill the fuel tank with fuel.
2. Locate the fuel primer (A).
3. Press the fuel primer repeatedly until you feel that fuel is in the primer.
4. Start the engine.
Spark Plug
The spark plug may come disconnected from the spark plug lead. If this is the case, place the electrical lead
over the spark plug terminal and push it down so that it connects firmly with the terminal. See Spark Plug
Removal/Installation.
A

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Engine Starting and Stopping
Before starting the engine, ensure that you have followed all procedures described in the
Before Use Checklist. The product is NOT supplied with engine oil, although traces of oil
from the manufacturing process may be present. It is essential to add adequate engine oil of the correct type
to the engine before use – see Checking and Changing Engine Oil. Failure to add engine oil will void the
product warranty.
Different models may feature variations in design; for example, some have different
engine types etc. There are currently two major variations in how the engine speed is
controlled:
•Manual – This is the more traditional style, using a throttle lever, where the position
of the lever determines the engine speed [just like the accelerator on your car].
Manual throttle engines generally have a choke setting on the throttle that is used for
starting the engine when it is cold.
•Automatic – These engines have a
system that adjusts the throttle
automatically based on the current engine
load. For example, when the grass being
cut is thick etc, the throttle opens up to
maintain engine speed. Engines with an
automatic throttle generally do not have a
choke setting on the throttle, but rather
just a "run" or "on" position.
Major engine controls are identified on the machine by stickers or other markings. The following procedures
and images are typical – the position or appearance of controls etc may vary. To start the engine:
1. PRIME – If necessary, “prime” the fuel system.
2. CHOKE – If the machine is equipped with a "choke" or "cold" or "cold start" throttle setting, and the
engine is cold, place the throttle in that position. If the engine is warm or the ambient temperature is high,
place the throttle somewhere in the “run” region [generally, just off the "stop" position is good].
If the machine has no choke, place the throttle in the "start" or "run" position.
3. IGNITION – If the machine has an engine ON/OFF switch or key switch, place it in the “on” (“I”) position.
Note that some models may be wired so that "O" is the "on" position. For key switches, the “off” position
allows the key to be removed from the switch. The “on” position is reached
when the key is rotated from the “off” position.
4. START – Slowly pull out the starter cord (A) until you feel it engage with
the engine, then pull it out rapidly. The engine should start. Allow the
starter cord to rewind slowly – do not let it “snap” back.
If the machine is equipped with electric start, press the "start" or "power"
button or turn the key switch to the "start" position to use the electric start.
Typically, electric start engines can also be pull started.
Note: If the machine features an "engine safety bar", it must be engaged in order to start the engine and for it
to remain running. • Many models feature an extended length starter cord that hooks to the mower handle
and allows the engine to be started from a normal standing position behind the mower.
5. WARM-UP and THROTTLE – It is good practice to allow the engine to warm-up and run smoothly
before using the machine. For manual throttles, set the desired engine speed once the engine is warm.
If the engine does not start, repeat step 4. If the engine fails to start after several attempts, refer to
Troubleshooting.
Manual Throttle
Automatic Throttle
Engine ON/OFF Switch
A

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To stop the engine:
•Place the throttle control in the “stop” or "off" position, or, if equipped, release the engine safety bar.
•If equipped, place the engine ON/OFF switch or key switch in the “off” position.
Environmental Considerations
Altitude
If the engine is being used in altitudes at or above 1500m (approximately 5000’), adjustments to the
carburettor may be required. This is because there is less oxygen in the air as altitude increases, which
effectively “enriches” the ratio of fuel to air going into the engine and the higher the altitude, the richer the
fuel mixture becomes. If the engine is being permanently operated at high altitude, it is recommended to
have an authorized service center make the necessary carburettor adjustments. If the engine is used
occasionally at altitude (not extreme altitudes), no adjustments should be required, however, a slight
decrease in engine performance can be expected.
Temperature
If the engine is being used in extremely cold or hot
environments; for example, desert or snow conditions, the type
of engine oil may need to be changed to suit environmental
temperatures. Oil thickens as the temperature decreases and
thins as temperature increases, which means that if the engine
oil is not suited to the temperature its ability to properly lubricate
the engine may be affected. Use the following chart to determine
the correct engine oil:

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Lawn Mower Operation
The product is NOT supplied with engine oil, although traces of oil from the
manufacturing process may be present. It is essential to add adequate engine oil of
the correct type to the engine before use – see Checking and Changing Engine Oil. Failure to add engine
oil will void the product warranty. • Always wear suitable protective clothing and equipment when using
the machine. • Inspect the machine before each use and check for wear or damage. If the machine is
damaged, have it inspected and repaired at an authorized service centre before using it again. • If you
experience excessive vibration from the mower during operation, this is an indication of wear or damage. It is
recommended to have it inspected and repaired at an authorized service centre before using it again. • Be
aware that once the engine is running, the cutting blades will be rotating and parts of the machine may be
extremely hot. • Ensure that the area to be mowed is free of objects that may get caught in the mower or be
thrown by it (stones, branches etc).
When the engine is idling (slowest continuous running speed), the cutting action is minimal. As engine speed
increases, the cutting action becomes more efficient. Note the following recommendations:
•Operate the engine at a sufficient speed to provide the desired cutting action. This may vary on the type
of grass, grass height and density etc.
•After use, it is recommended to clean the mower of excessive grass cuttings, dirt etc. Some models
feature a "deck wash", which can be used to simplify cleaning the underside of the mower deck.
The lawn mower may have additional features to "just" cutting grass. For example, mulching, side discharge
chute etc.
Using the Throttle
Once the engine is started, the machine can be used. For manual throttle machines, you adjust engine
speed manually; for example, when cutting thicker or longer grass, increase engine speed. Push or pull the
throttle within the range between the "start" and "stop" positions to reach the required engine speed.
For machines that have automatic throttle control, just leave the throttle in the "start" position.
When you are pushing the mower from one area to another, but not cutting, you can "idle" the engine [run it
slow, but not stop]. For manual throttle machines, place the throttle close to the "stop" position. For automatic
throttle machines, pull the throttle toward you approximately mid-way.
Engine Safety Bar
Some models may have an "engine safety bar" (A) [also known
as a "brake bar" or "bail"] that must be engaged in order for the
engine to start and run. When the bar is released, the engine
automatically stops. This is a safety feature to help ensure that
the mower operator is behind the mower while the engine is
running.
To start and run the engine, hold the engine safety bar against
the handle (B). A
B

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Adjusting Cutting Height
Most mowers feature adjustable cutting heights. The mechanism raises/lowers
the lawn mower deck and has several steps. When setting cutting height, note
that weeds can spread more easily in very short grass. If the grass is long it
may be necessary to cut it in several passes, each time lowering the cutting
height. To set the cutting height:
1. Pull the height adjustment lever (A) outward so that is disengages with the
teeth (B).
2. Rotate the lever forward to raise, or backward to lower, then release it at
the desired height.
Using the Grass Catcher
Note: Ensure that the mulching attachment (if equipped) is not installed when using the catcher.
When you want to catch the grass cuttings for disposal, use the grass catcher. The grass catcher hooks to
the rear of the mower, under the rear guard. To attach and detach it:
1. Lift the bottom edge of the rear guard (A) sufficiently to allow the catcher to pass underneath it and hold
it in this position.
2. Insert the catcher (B), with open end toward the mower, and hook the catcher fingers (C) onto the
mounting points (D), then lower the rear guard so it rests on the top of the grass catcher.
To remove the grass catcher, lift the bottom edge of the rear guard, then lift the grass catcher to unhook it
from the mower. Once unhooked, pull the grass catcher out and lower the rear guard.
Using the Mulching Attachment
Some models may feature a "mulching" attachment. Mulching is to re-circulate the cut the grass through the
blades so that is very finely "chopped" and can be left on the cut grass as a "grass feed". When mulching,
the grass catcher is not required. To install the mulching attachment:
1. Remove the grass catcher, if installed. Lift
up and hold the rear guard (A).
2. Insert the mulching attachment (B), with
the top angled forward slightly so that the
protrusions on the bottom of the
attachment enter the slots in the mower
deck. Pull the top of the attachment back
slightly so it is correctly fitted, then lower
the rear guard.
To remove the mulching attachment, lift the rear guard, unhook the mulching attachment from the deck and
pull it out, then lower the rear guard.
B
C
D
A
B
A
A
B

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Using the Side Discharge Attachment
Some models may feature a "side discharge chute" attachment. The side discharge chute ejects the grass
cutting to the side of the mower. When using the side discharge chute, the grass catcher is not required. To
install the side discharge chute attachment:
1. Remove the grass catcher, if installed. Lift up and hold the flap (A) on the side of the mower deck.
2. Insert the side discharge chute attachment (B) under the flap. Ensure that the protrusions (C) on the
underside of the flap enter the slots (D) on the top of the side discharge chute, then lower the flap.
To remove the side discharge chute attachment, lift the flap until the chute unhooks from it, then remove the
chute and lower the flap.
Using the Self-Propel Function
Some models may have a self-propelling function (forward
direction only) to make mowing easier. The function is switched
on and off using "drive activation bar" (A). When the bar is
released, the drive stops. The speed of the drive is not directly
controllable, however, may vary somewhat with engine speed.
Note: When the engine is not running, if the drive activation bar is
pulled in, the drive gears will engage which can make it difficult to
move the mower. It is recommended to release the drive
activation bar when changing direction, reversing etc.
To activate the self-propel function, hold the drive activation bar
against the handle (B). To deactivate the function, release the bar.
Using the Deck Wash Function
Some models may have a "deck wash" function to help make cleaning
the blades and cutting area (under the deck) easier. Note that the
function is not intended to completely clean the mower – it will remove
some built-up cuttings and dirt from the deck, but more importantly, will
soften it up to make removal by hand easier. Keeping the underside of
the deck clean will prolong the life of the machine and blades. To use the
deck wash function:
1. Install the mulching and side discharge chute attachments and lower
the deck to the lowest cutting height.
2. Attach a garden hose the deck wash port (A) and turn the water on.
3. Start the engine and allow it to run at high speed for approximately 30 to 60 seconds – be aware that
water and grass cuttings/dirt will be ejected through the side discharge chute.
4. Stop the engine and turn off the water, then scrape away cuttings/dirt from the deck by hand (wear
gloves) or using a suitable tool. This procedure may have to be repeated several times.
A B C
D
A
B
A

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Mowing Guidelines
If the machine strikes against an object during mowing or an object gets caught in the
mower, stop the machine immediately. Allow the machine to stop running completely and to
cool down before inspecting the machine and/or removing any objects that may be caught in it. If the
machine is damaged, have it inspected and repaired at an authorized service centre before using it again. • If
you experience excessive vibration from the mower during operation, this is an indication of wear or damage.
It is recommended to have it inspected and repaired at an authorized service centre before using it again.
The following information are general guidelines to mowing:
•The equipment is designed for domestic use only.
•Always wear substantial footwear, such as boots, and long trousers when operating the product. Do
NOT wear open shoes and shorts.
•Check the work area before mowing and remove any objects (stones etc) that may be thrown by the
mower or may otherwise damage it.
•Avoid cutting wet grass. Wet grass clipping do not collect well and have a tendency to stick to the
underside of the mower deck.
•Avoid cutting very tall grass. If the grass is tall, mow in several passes, each time reducing the cut
height.
•Do not use the equipment for purposes it is not designed for, such as shredding leaves or wood
chipping.
•Avoid overly steep slopes when mowing and, when mowing on an incline, mow across the face of the
incline, not up and down it.
•Do not start self-propelled models (where applicable) with the drive mechanism engaged.
•Use caution when reversing or pulling the equipment towards you, and changing direction.
•After stopping the engine, always allow all moving components (blades etc) to stop moving before
moving, lifting etc.
•Stop the engine if the equipment requires tilting or moving over non-grass surfaces.
•Be aware that cutting more than one third of the total height of the grass may affect the health of the
grass, and that weeds are able to spread more easily in extremely short grass. A healthier lawn is
achieved by regular mowing and not cutting the grass back excessively.
•When mowing, move the mower through the grass at a sensible rate so as to not strain the machine or
otherwise reduce its effectiveness, and to achieve the best cutting results.
•Mow in slightly overlapping rows. An effective pattern is to mow in straight lines,
starting along the longest edge of the work area, then turning at the end and mowing
the next row and so on. Using a regular pattern helps keep the end result neat and
reduces the chance of uncut areas.
•For lawns with trees or flowerbeds, for best results it is recommended to cut 1 or 2
rows around the circumference of trees/flowerbeds.
•Regularly empty the grass catcher. Some models may feature an indicator to
show when the grass catcher requires emptying. This is usually a small flap
on the top of the catcher that lifts when the catcher becomes full.

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Maintenance
Running combustion engines in confined areas CAN KILL IN MINUTES. Engine
exhaust fumes contain carbon-monoxide – a deadly gas that you cannot smell
or see. NEVER run a combustion engine in confined areas EVEN IF windows and doors are open. ONLY run
combustion engines OUTDOORS and away from doors, windows and vents. • Petrol/fuel/gasoline is
extremely flammable – keep clear of naked flames or other ignition sources. • The product is NOT supplied
with engine oil, although traces of oil from the manufacturing process may be present. It is essential to add
adequate engine oil of the correct type to the engine before use – see Checking and Changing Engine Oil.
Failure to add engine oil will void the product warranty. • Do not have the engine running during
inspection and maintenance unless specifically required. • The engine should be cool enough to touch before
performing maintenance activities. • Some maintenance activities described may be beyond the scope of
some users. For procedures that you are not comfortable with or have the tools or experience for, have the
unit serviced by a service centre or qualified technician.
To keep the equipment performing at optimal efficiency, regular checks and maintenance is required. Proper
care and maintenance ensures best performance and longest service life.
The maintenance schedule below specifies preventative maintenance checks and necessary maintenance
tasks and how often they should be performed.
Harsh operating environments such as extreme temperatures, dust etc may necessitate more
frequent maintenance. • Maintenance frequencies are based on general factors including a
maximum use of approximately 300 hours per year. Apply common-sense when following the maintenance
schedule based on your actual use of the product. • Keep reasonable records of maintenance activities for
reference. Failure to follow the maintenance schedule, using incorrect or non-compatible accessories
or replacements parts, or general negligence may result in making the product warranty void.
Maintenance Schedule
Frequency – Whichever Comes First
Component/Task Every Use First Month or 20 Hours Use Every 3 Months or 50 Hours Use Every 6 Months or 100 Hours Use Every Year or 300 Hours Use
Engine Oil Check *Replace *Replace
Oil Leaks Check/repair as
necessary
Air Cleaner Check Clean and replace as necessary
Spark Plug Check Replace
Valve Clearance Adjust as
necessary
Combustion
Chamber De-coke as necessary
Idle Speed Check/adjust as
necessary
Fasteners Check/tighten
as necessary
Fuel Tank Flush and clean
Fuel Line Replace as necessary
Fuel Filter Clean and replace as necessary
Fuel Strainer Check
* Briggs & Stratton "EXi" type engines do not require regular oil changes.

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Checking and Changing Engine Oil
The product is NOT supplied with engine oil, although traces of oil from the manufacturing
process may be present. It is essential to add adequate engine oil of the correct type to the
engine before use. Failure to add engine oil will void the product warranty. • Always check engine oil
level when the machine is in an upright position on a flat and level surface. • Do not use used or
contaminated engine oils. • Use only engine oils of the correct type (see Specifications). • Perform the first oil
change within the first 20 hours of use. Subsequently, change the oil every 20 hours of use. • It is
recommended that the engine be warm, but not hot, when performing oil changes. When the oil is warm it
drains faster. • Using dirty or incorrect engine oil may cause engine damage and void any warranty • Always
use suitable tools. • Always dispose of used oil in an environmentally responsible manner and according to
regulations.
Four-stroke engines require engine oil in the crankcase for lubrication of internal components. Severe or
irreparable damage may occur if the engine is allowed to run without engine oil. The engine oil level requires
regular maintenance as per the maintenance schedule.
To check engine oil level:
1. Place the machine in an upright position on a flat and level
surface.
2. Clean the machine around the oil filler cap/dipstick (A) so that
no dirt or other material enters the engine when the cap is
removed.
3. Remove the oil filler cap/dipstick (rotate left) until fully
unscrewed, or, for bayonet style caps, unlocked, then:
a. Wipe the dipstick clean with a piece of cloth or paper.
b. Insert the dipstick back into the oil filler but do not screw/lock it in.
c. Remove and inspect the dipstick – the oil level is determined by
where oil can be seen on it. Depending on model, the dipstick
has two "dots" or is "hatched" or "ribbed" to indicate the
permissible minimum and maximum levels.
4. Ensure that the oil level is at or just under the permissible maximum.
If the oil level is low, add additional oil until the correct level is
reached. If the oil level is too high, drain some oil until the correct level is reached.
5. When finished, re-install (rotate right) the oil filler cap until firm. Wipe off any residual oil from the
machine.
To change the engine oil:
Note: Briggs & Stratton "EXi" type engines do not require regular oil changes.
1. Place the machine on a suitable work surface that is flat and level and have a container ready to catch
drained oil.
2. Clean the machine around the oil filler (A) so that no dirt or other material enters the engine when the
plug or cap is removed.
3. Remove the oil filler cap/dipstick (rotate left) until fully unscrewed, or, for bayonet style caps, unlocked.
4. Tilt the machine and drain all oil from the engine. Once drained, allow the machine to sit level again.
5. Using a funnel, carefully add oil to the engine until the permissible maximum is reached. Double-check
the oil level (described above).
6. When finished, re-install (rotate right) the oil filler cap until firm. Wipe off any residual oil from the
machine.
A

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Checking, Cleaning or Replacing the Air Filter
Operating the machine without a functional air filter may cause severe engine damage and will void
any warranty. • A dirty or oil saturated air filter will restrict air flow, which can be mistaken as fuel
system problems. Check the condition of the air filter before adjusting engine idle speed, where applicable. •
If the air filter is damaged (torn, broken, disintegrating), replace it.
The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal
damage to it. The air filter requires regular maintenance as per the maintenance schedule.
Air Filter Inspection and Cleaning
Inspect the air filter for dirtiness and debris, damage etc. Clean or replace the filter element as necessary. To
clean air filters:
•For foam filters, wash the filter in warm water and mild detergent, then rinse and allow to dry.
•For paper filters, use compressed air to blow particles from it, if possible. The air should be blown from
the engine side of the filter. Tapping the filter element against a hard surface and brushing the pleats
using a soft brush may also help remove debris from the filter.
•For foam filters, place a few drops of clean engine oil on the filter then squeeze it a few times to spread
the oil through the filter material and remove any excess oil.
•It is recommended to clean the air filter cover and air intake assembly of any dirt, cuttings etc.
To remove the air filter:
1. Depending on model, the air filter cover (A) may be secured using a screw (B), or clips (C) into position.
If the cover has a screw, loosen it (rotate left) and remove the cover from the air intake assembly. If the
air filter cover is secured with clips, carefully release them – usually, you will need to press the tab of the
clip to release it. Carefully remove the air filter cover – some covers may hinge or have protrusions that
help locate it against the engine.
2. Remove the filter element (D).
To install the air filter:
1. Insert the air filter element, and ensure it is correctly positioned in relation to the air intake assembly as it
will seat and seal properly in one position only.
2. Re-install the filter cover, ensuring it is fitted properly against the engine and secure it with the screw
(rotate right and tighten by hand. Do not over-tighten), or clips.
A
A
B
C
D
D

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Spark Plug
If the spark plug is damaged (cracked insulator, broken or eroded electrodes etc), replace it. •
Always use spark plugs of the correct “heat range” - see Specifications.
The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug has electrodes on one
end and an electrical terminal on the other. The spark plug requires regular maintenance.
Spark Plug Cleaning and Gap Checking
The spark plug should be checked and cleaned as per the maintenance schedule.
1. Remove any carbon deposits on the spark plug (A) electrodes (B) with a wire
brush.
2. Clean the spark plug threads and the electrical terminal (C) on the top.
To check and adjust the spark plug “gap”:
1. Use “feeler” or “thickness” gauges (X) to measure the existing gap. The gauge
must drag a little when being slid between the electrodes (B) – this means the
measurement is fairly accurate.
2. Adjust the gap to within specification (see Specifications). If the gap needs to be
reduced, gently tap the electrode as required. If the gap needs to be increased,
use pliers to gently pull the electrode as required.
3. Measure the gap again and ensure it is within the specified range before re-installing the spark plug.
Spark Plug Removal/Installation
1. Pull the electrical lead (A) from the terminal on top of the spark
plug (B).
2. Clean the area around the spark plug so that no dirt or other
material can enter the engine when the spark plug is removed.
3. Use the spark plug tool (C) to remove the spark plug (rotate left).
To re-install the spark plug:
1. Place the spark plug in its hole and screw it in (rotate right) until
“finger tight”.
2. Use the spark plug tool to tighten the spark plug approximately
one quarter turn (do not over-tighten).
3. Place the electrical lead over the spark plug terminal and push it
down so that it connects firmly terminal.
A
B
B
X
C
A
B
C

Bäumr-AG Petrol Powered Lawn Mowers
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Cleaning Guidelines
Do not use solvents, chemicals or abrasives when cleaning the machine, as some surfaces may be
damaged. • Wear gloves or use suitable tools to assist in cleaning – do not use bare hands. • Clean
the machine after every use to ensure best performance and longest service life. • It is recommended to jack
the machine up when inspecting or working on the underside of the deck. Avoid tilting the machine to avoid
potential fuel or oil spills or leaks.
Use a slightly damp cloth, water and mild detergent for cleaning.
Use a brush for parts that are difficult to reach.
Ensure air vents and surfaces designed for heat dissipation are clean and free of obstructions or debris.
Remove clippings, dirt etc from the underside of the deck and cutting blades (the deck wash function on
some models assists this procedure).
It is recommended to lightly oil the cutting blades after each use to help prevent corrosion.
Ensure all chutes and flaps are clean and not obstructed.
Ensure that spring-loaded parts, such as the rear guard, return to the normal position when released.
Clean and check the grass catcher for any damage – replace damaged parts. Allow the grass catcher to dry
thoroughly before storing to prevent mildew or deterioration of the catcher netting (where applicable).
Ensure that all control cables, levers, switches etc are clean and operate normally and smoothly.
Transportation and Storage
Always ensure that the machine is cool enough to touch before transporting or
storing. • Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or
other ignition sources.
Preparing for Transport and Storage
•Clean the equipment before transport or storage.
•Disconnect the spark plug lead.
•Store the equipment in a dry, well-ventilated area and out of the reach of children.
Long Term Storage
Follow the normal procedures for storage, then:
•Drain the fuel system. It is advised to have the fuel tank as empty as possible before draining.
a. Unscrew (rotate left) the carburettor drain plug. Use a suitable container to catch the draining fuel,
and allow the fuel to drain. Store the drained fuel in a properly sealed container.
b. Re-install (rotate right) the carburettor drain plug and tighten.
•Remove the spark plug and put 30ml of clean engine oil into the cylinder. Pull the starter rope slowly to
distribute the oil. Re-install the spark plug.
•Cover the equipment to protect it from dirt and dust.