Mac allister MPRM 42SP User manual

125 cc /140 cc Pedestrian
Lawn mower
171504003/5
MPRM 42SP - MPRM 46SP
295442024/MCA - 295496224/MCA
Supported by
For all your Warranty,
Parts and Service needs
0800 121 6585
www.servicelink.org.uk
Do not return this product to store,
please call the Service Link Helpline
Products with petrol in
cannot be accepted back in store

Codice
Pedestrian lawn mower
GB-IE
Pedestrian controlled lawnmower MPRM 42SP / 46SP 3
Original instructions
2

Let’s
get started...
These instructions are for your safety. Please read through them thoroughly
before use and retain them for future reference.
Getting started... 5
Identication 6
Controls 7
Safety 8
In more detail... 11
Grass cutting 12
Routine Maintenance 14
Troubleshooting 15
Environmental protection 16
Technical specications 17
Warranty 18
Assembly 19
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Getting
started...
Identication 6
Controls 7
Training 8
Preliminary Operations 8
During Use 9
Maintenance and Storage 10
Transportation and Handling 10
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Getting started...
MPRM 42SP / 46SP by MacAllister

Identication
10. Identication Label 11. Chassis 12. Engine 13. Blade (Blade)
14. Rear discharge guard 15. Grass-catcher 16. Handle 18. Engine brake lever
19. Drive engagement lever
Symbols
SAFETY REQUIREMENTS - Your lawnmower must be used carefully.
Symbols have therefore been placed on various parts of the machine
to remind you of the main precautions to be taken. Their meaning
is explained below. You are also asked to carefully read the safety
regulations in the specic chapter of this manual.
41. Warning: Read the instruction manual before using the machine.
42. Risk of thrown objects. Keep all persons away from the work area
whilst mowing.
43. Danger of cutting yourself. Moving blades. Do not put hands or
feet near or under the opening of the blade housing. Disconnect
the spark plug cap and read the instructions before carrying out
any maintenance or repairs.
44. Only for lawnmowers with electric motor.
45. Only for lawnmowers with electric motor.
Symbols on the controls
24. Engine stop 25. Drive on
41
42
43
44
45
10.1 Acoustic power level
10.2 Name and address
of Manufacturer
10.3 Machine model
10.5 Motor power and speed
10.6 Mass in kilograms
10.7 Machine use
10.8 European article code
10.9 Year of manufacture
10.10 Serial number
10.11 Article Code
10.12 Conformity marking EC
Identication
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Getting started...

[1] Blade brake lever
The blade brake is controlled by the lever (1) which must be held against the handle for
starting and during lawnmower operations.
The engine stops when the lever is released.
[2] Drive engagement lever
On power-driven models, push the lever (1) toward the handle for forward movement.
The lawnmower stops moving forward when the lever is released.
[3] Cutting height adjustment
The cutting height is adjusted by the levers (1).
The four wheels must be adjusted to the same height.
DO THIS WHEN THE BLADE IS STOPPED.
Controls
[1]
[3]
[2]
Controls
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Getting started...
MPRM 42SP / 46SP by MacAllister

Training
Preliminary operations
1) Read the instructions carefully. Become familiar with the controls and the proper use
of the lawnmower. Learn how to stop the engine quickly.
2) Only use the lawnmower for the purpose for which it was designed, namely mowing and
collecting grass. Any other usage may be hazardous and harm persons and/or damage
things. Examples of improper use may include, but are not limited to:
– transporting persons, children or animals on the machine;
– letting oneself be transported by the machine;
– using the machine to tow or push loads;
– using the machine for leaf or debris collection;
– using the machine to trim hedges, or for cutting vegetation other than grass;
– use of the machine by more than one person;
– using the blades on surfaces other than grass.
3 Never allow children or persons unfamiliar with these instructions to use the lawnmower.
Local regulations can restrict the minimum age of the operator.
4) Never use the lawnmower:
– when people, especially children or pets are nearby;
– if the operator has taken medicine or substances that may impair his ability to react and
be attentive.
5) Bear in mind that the operator or user is responsible for accidents or unexpected events
occurring to other people or their property.
1) While mowing, always wear sturdy footwear and long trousers. Do not operate the
lawnmower when barefoot or wearing open sandals.
2) Thoroughly inspect the entire work area and remove anything that could be thrown by the
machine or damage the cutting unit or engine (stones, branches, iron wire, bones, etc.).
3) WARNING: DANGER! Petrol is highly ammable.
– store the fuel in suitable containers;
– add fuel using a funnel, only outdoors; never smoke while doing this and whenever fuel
is handled;
– add petrol before starting the engine; never add petrol or remove the petrol tank cap
while the engine is running or when it is hot;
– if you have spilt some fuel, do not attempt to start the engine but move the lawnmower
away from the area of spillage to avoid creating any source of ignition until the fuel has
evaporated and fuel vapours have dissipated.
– always put the tank and fuel container caps back on and tighten well;
4) Replace faulty silencers
5) Before use, always inspect generally and in particular to see that the blade, screws and
cutting deck are not worn or damaged. Replace damaged or worn blades and screws to
preserve balance.
6) Before starting work, t the exit guards (grass-catcher or rear discharge guard).
Safety
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Getting started...

1) Do not operate the engine in a conned space where dangerous carbon monoxide fumes
can develop.
2) Mow only in daylight or good articial light.
3) If possible, avoid mowing wet grass.
4) Make sure you have a steady foothold on slopes.
5) Never run, always walk; do not let the lawnmower pull you.
6) Always mow transversely on slopes and never up and down.
7) Be extremely careful when changing directions on slopes.
8) Do not mow on land that slopes more than 20°.
9) Be extremely careful when pulling the lawnmower towards you.
10) Stop the blade if the lawnmower is to be tilted for transport, when moving over surfaces
other than grass and when the lawnmower is transported from or to an area that must be cut.
11) Never operate the lawnmower with damaged guards or without the grass-catcher or the
rear discharge guard.
12) Do not change the engine settings or overspeed the engine.
13) On power-driven models, disengage wheel drive before starting up the engine.
14) Start up the engine carefully according to the instructions, keeping feet away from the
blade.
15) Do not incline the lawnmower for start up. Start up the machine on a at surface without
obstacles or high grass.
16) Never place your hands and feet near or under rotating parts. Always keep away from the
discharge opening.
17) Do not lift or transport the lawnmower when the engine is running.
18) Stop the engine and disconnect the spark plug cable:
– before making any adjustments under the cutting deck or before unclogging the chute:
– before checking, cleaning or working on the lawnmower;
– after striking a foreign object. Inspect the machine for any damage to the lawnmower
and make the necessary repairs before using it again;
– if the lawnmower begins to vibrate abnormally (Immediately look for the cause of the
vibrations and take it to a Specialised Centre for necessary inspections).
19) Stop the engine:
– whenever you leave the lawnmower unattended. Also remove the key on models with
electric start up;
– before refuelling;
– whenever you remove or reattach the grass-catcher;
– before adjusting the cutting height.
20) Reduce the throttle setting before stopping the engine. Shut o the fuel supply when
mowing is done, following the instructions in the engine manual.
21) When mowing, always keep a safe distance from the rotary blades, given by the length of
the handle.
During use
Safety
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Getting started...
MPRM 42SP / 46SP by MacAllister

Maintenance and storage
1) Keep all nuts and screws tight to be sure the equipment is in safe working condition.
Routine maintenance is essential for safety and for maintaining a high performance level.
2) Do not store the lawnmower with fuel in the tank in an area where fuel vapours could
reach an open ame, a spark or a strong heat source.
3) Allow the engine to cool before storing the lawnmower in any enclosure.
4) To reduce re hazards, keep the engine, silencer, battery compartment and petrol
storage area free of grass, leaves, or excessive grease. Never leave containers with cut
grass inside a storage area.
5) Check the rear discharge guard and grass-catcher frequently for wear or deterioration.
6) If the fuel tank has to be emptied, this should be done outdoors once the engine has
cooled down.
7) Wear work gloves for disassembling and reassembling blades.
8) Keep the blade balanced during sharpening. All work on the blade (disassembly,
sharpening, balancing, reassembly and/or replacing) are demanding jobs that require
special skill as well as special tools. For safety reasons, these jobs are best carried out at
a specialized centre.
9) For safety reasons, never use the machine when it has worn or damaged parts. Parts
must be replaced and not repaired.Use original spare parts.Parts that are not of the same
quality can damage the equipment and impair your safety.
10) If the machine is not going to be used for 28 days or more please drain all fuel from the
machine. Stale fuel can cause damage to the carburettor.
Transportation and handling
1) Whenever the machine is to be handled, lifted, transported or tilted you must:
– wear sturdy work gloves;
– grasp the machine at the points that oer a safe grip, taking account of the weight and
its distribution;
– use an appropriate number of people for the weight of the machine and the
characteristics of the vehicle or the place where it must be placed or collected.
2) During transport, fasten the machine securely with cables or chains.
Safety
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Getting started...

In more detail...
Grass cutting 12
Routine maintenance 14
Troubleshooting 15
Environmental protection 16
Technical specications 17
Warranty 18
In more detail...
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MPRM 42SP / 46SP by MacAllister

Grass cutting
NOTE - This machine lets you mow the lawn in dierent ways; before starting work, prepare
the machine based on how the lawn is to be mowed.
DO THIS WHEN THE MOTOR IS OFF.
[1] Preparation for mowing and collection in grass-catcher
Lift the rear discharge guard (1) and fasten the grass-catcher (2) correctly as shown in the
illustration.
[2] Preparation for mowing and rear grass discharge
Remove the grass-catcher and make sure that the rear discharge guard (1) remains
securely in place.
Grass cutting
[1]
[3]
[5]
[2]
[6]
[4]
In more detail...
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Lawn care recommendations
Each type of grass has dierent characteristics and may thus require dierent ways of caring
for the lawn; always read the instructions on seed boxes for mowing height for the growing
conditions in the work area.
Keep in mind that most grass is made up of a stem and one or more leaves. If leaves are fully
cut, the lawn is damaged and growth is more dicult.
The following indications generally apply:
– cutting too low tears and uproots the grass, giving it a “spotted” appearance;
– in the summer, cutting must be higher to prevent the ground from drying;
– do not cut wet grass; this could reduce blade eciency due to sticky grass and tear the
lawn.
– for particularly high grass, initially mow at the maximum height allowed by the machine then
mow again after two or three days.
The appearance of the lawn will improve if you alternate cutting in both directions at the same
height.
Grass cutting
[3] Preparation for mowing and mulching (if provided)
Lift the rear discharge guard (1) and t the deector cap (5) in the outlet, keeping it slightly
tilted to the right. Fasten it by tting the two pins (6) into the holes provided until the fas-
tener tooth (7) clicks into place.
To remove the deector cap (5), lift the rear discharge guard (1) and push in the middle to
release the tooth (7).
[4] Starting the engine
For start up, follow the instructions in the engine manual, then pull the blade brake lever
(1) against the handle and rmly pull the knob on the starter cable (2).
[5] For mulching or rear grass discharge
Always avoid removing a large quantity of grass. Never cut more than one third of the
total grass height in a single passage! Regulate the forward speed according to the lawn
conditions and the amount of grass removed.
[6] Whenworkisnished
When work has been completed, release the brake lever (1) and disconnect the spark
plug cap (2).
On models where it is provided, remove the starter key.
WAIT UNTIL THE BLADE STOPS before making any adjustments to the lawnmower.
In more detail...
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MPRM 42SP / 46SP by MacAllister

Routine maintenance
Routine maintenance
IMPORTANT – Routine and accurate maintenance is essential in maintaining original
machine safety and performance levels.
Store the lawnmower in a dry place.
1) Wear sturdy work gloves before cleaning, maintaining or adjusting the machine.
2) Accurately wash the machine with water after each mowing, remove grass debris and
mud accumulated under the chassis to prevent it from drying and causing problems the
next time the lawnmower is used.
3) Paint on internal chassis parts may come o over time due to the abrasive action of cut
grass; if this happens, promptly touch-up paint with rust-proof paint to prevent rusting that
could corrode the metal.
4) If accessing the lower part is necessary, only tilt the machine on the side indicated in the
engine manual, following the relevant instructions.
5) Do not drip petrol onto the plastic parts of the engine or the machine to prevent damaging
them and remove all traces of spilt petrol immediately. The warranty does not cover dam-
age to plastic parts caused by petrol.
[1] Blade disassembly and reassembly
Each adjustment made to the blade is best if carried out at a specialised Centre that has
the most appropriate tools.
Only blades with the following code must be used on the machines:
81004341/0 (MPRM 42SP)
81004346/3 (MPRM 46SP)
[2][1]
In more detail...
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Troubleshooting
PROBLEM
The petrol-driven lawnmower
doesn’t work
Mowing is dicult
The cut grass is not collected
in the grass-catcher.
The lawnmower vibrates
abnormally
SOLUTION
Remove the spark plug cap and check oil and petrol levels
Check that petrol is fresh and clean. Petrol that has been stored in
the machine for over 28 days will need to be drained as this will have
gone stale.
Clean the spark plug and lter which may be dirty or replace them.
Remove the spark plug cap and check the blade’s condition.
If worn or damaged, replace it with a new blade.
Remove the spark plug cap and check the blade’s tightening torque.
Remove the spark plug cap and make sure the chassis interior is not
obstructed. If it is, clean it.
Remove the spark plug cap and make sure the blade has not
received a blow. If it has, replace it.
Increase the cutting height if the grass is too high.
Remove the spark plug cap and make sure the blade is not severely
damaged. Contact your dealer.
Troubleshooting
Blades must always be marked . Given product evolution, the above mentioned blades may
be replaced in time by others, with similar interchangeable and operating safety features.
Reassemble the blade (2) with the code and markings facing the ground, following the steps
indicated in the illustration. Tighten the central screw (1) using a torque wrench set to
35-40 Nm.
[2] Drive adjustment
On power-driven models, the proper belt tension is obtained by adjusting the nut (1) to get
the indicated measurement (6 mm).
HELPLINE
0800 121 6585
or visit
www.servicelink.org.uk
This product is supported by Service
Link. If you have been unable to find the
information you require above please
call the Service Link helpline. Here you
will find 1-2-1 help and advice from
garden machinery repair specialists.
Service Link
In more detail...
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EC Declaration of conformity
Environmental protection
Environmental protection should be a priority of considerable importance when using the
machine, for the benet of both social coexistence and the environment in which we live.
– Try not to cause any disturbance to the surrounding area.
– Scrupulously comply with local regulations for the disposal of waste materials after
mowing.
– Scrupulously comply with local regulations for the disposal of packaging, deteriorated parts
or any elements with a strong environmental impact; this waste must not be disposed of as
normal waste, it must be separated and taken to specied waste disposal centres where
the material will be recycled.
– When decommissioning, do not pollute the environment with the machine, hand it over to a
disposal centre, in accordance with the local regulations in force.
Environmental protection
The company: B&Q plc - B&Q House, Chestnut Avenue, Chandlers Ford - Eastleigh - SO53 3LE - UK
Certies that the lawnmower, walk behind MPRM 42SP MPRM 46SP
with combustion engine
Width of cut : 41 cm 46 cm
Engine: Briggs & Stratton 08P502 09P602
Conforms to the specications of directives: 2006/42/CE ; 2004/108/CE ; 2000/14/CE ; 2005/88/CE
Tested by (2000/14/EC) TÜV Rheinland LGA Products GmbH
Notied Body N° 0197
Tillystrasse 2– 90431 Nürnberg- Germany
Conformity assessment procedure :ANNEX VI
Measured sound power level: 94 db(A) 96 db(A)
Guaranteed sound power level: 95 db(A) 96 db(A)
Reference to harmonized standards:
EN ISO 5395-1:2013 - EN ISO 5395-2:2013
Sound pressure level at operator’s ear: 83 db(A) 82 db(A)
Vibration level on the handle: 7,27 m/s² 6,48 m/s²
Person authorized to create the Technical File: B&Q plc - B&Q House
Chestnut Avenue, Chandlers Ford - Eastleigh
SO53 3LE - UK
Chandlers Ford, Eastleight 10/11/2014 Peter Brownhill - Quality Lead, Seasonal & Decor
Serial number:
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Manufacturer’s data MPRM 42SP MPRM 46SP
Operator ear noise pressure level ................................... db(A) 82,3 81,3
- Measurement uncertainty ............................................. db(A) 0.7 0.7
Measured acoustic power level ....................................... db(A) 94 96
- Measurement uncertainty ............................................. db(A) 0.89 0.4
Guaranteed acoustic power level .................................... db(A) 95 96
Vibration level .................................................................... m/s
2
7,27 6,48
- Measurement uncertainty ............................................... m/s
2
0,7 0,5
Manufacturer’s data MPRM 42SP MPRM 46SP
Name and address of manufacturer B&Q plc
B&Q House
Chestnut Avenue, Chandlers Ford - Eastleigh
SO53 3LE - UK
Brand name MacAllister MacAllister
Engine B&S 300 series B&S 500E series
Weight (kg) 22 - 30 26 - 29
Cutting width (cm) 41 46
Grass-catcher capacity (l) 60 60
Cutting height (mm) - 5 positions : 27-80 mm 27-80 mm
Technicalspecications
Maximum noise and vibration levels
Technicalspecications
In more detail...
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MPRM 42SP / 46SP by MacAllister

Length of warranty – 2 years
Congratulations on the purchase of your MacAllister lawnmower. This product has been manufac-
tured to highest quality standards and is guaranteed for domestic use against faulty parts or manu-
facture for a period of 2 years from the date of purchase. Please note that if the machine is used
commercially the guarantee period is 90 days from the date of purchase. If you experience any
problem with your MacAllister lawnmower please call our technical helpline on 0800 121 6585 and
our operators will endeavour to solve your problem. In the event your problem cannot be resolved
over the phone the operator will refer you to one of our local authorised service centres.
This guarantee is subject to the following terms:
• This guarantee is not transferable. An original proof of purchase will be required in the event of
a claim.
• The product must be serviced at the recommended intervals by an authorised service centre.
A service schedule should be kept including invoicing and receipts. Please phone [phone]
6585 to locate your nearest MacAllister service centre or visit www.servicelink.org.uk. Service
procedures (for example carb cleaning, draining engine oil, blade sharpening, belt and cable
adjustment) and consumable parts that require periodic replacement (for example the spark
plug, air lter and oil) are not covered under this guarantee. This also applies to parts subject to
fair wear and tear (for example wheels, bearings, starter cord, cables, belts and blade).
• Delivery and collection of the machine is your responsibility and not covered under this guaran-
tee.
• The guarantee does not cover any breakages or damage that are a result of the following; mis-
use, alteration, improper assembly or adjustment, neglect or accident.
• Expenses and costs incurred from loss of utility will not be compensated.
• The guarantee does not cover machines that are transported outside of the UK & Eire.
• Where a mower is tted with an engine not manufactured by MacAllister, the engine manufacturer
guarantees the engine.
This guarantee is in addition to and does not detract from your contractual rights under statute or
common law.
Warranty
Warranty
Service link
> What is Service Link? Service Link is an aftersales help and
advice helpline with a national network of garden machinery
repair specialists.
> How can we help you? Here at service link we can help with all
your trouble shooting, warranty, parts and service needs.
Call us and speak to one of our advisors and if required, visit one
of our 450 centres across the UK and Ireland.
> How can you contact us? If in the unlikely event that this
product does require our help please contact the helpline on
0800 121 6585 in the UK or 1800806149 in RoI. Lines are open
Monday-Saturday 9am to 5pm and Sundays 10am to 4pm. Also
find us online at www.servicelink.org.uk.
www.servicelink.org.uk
GGP UK Ltd,
Unit 8 Bluewater Estate,
Bell Close,
Plympton,
Plymouth PL7 4JH, UK
Helpline number:
0800 121 6585
In more detail...
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Appendix...
Assembly
19

Assembly
01
02
03
x 2
x 1
x 2
05
20