Table of contents Page
Packing 2 ................................................................................
Delivery inventory 3 ..............................................................
Symbols ............................................................................... 3
SAFETY PRECAUTIONS
General precautions 4 .......................................................
Protective equipment 4 ......................................................
Fuels / Refuelling 5 ............................................................
Putting into operation 5 ......................................................
Kickback ......................................................................... 6
Working behavior/Method of working ...........................6-7
Transport and storage 8 .....................................................
Maintenance ...................................................................8
First aid 8 ...........................................................................
Technical data 9 .....................................................................
Denomination of components 9 ...........................................
PUTTING INTO OPERATION
Mounting the guide bar and saw chain 10-11 ....................
Tightening the saw chain .............................................. 11
Checking the chain tension 12 ...........................................
Retightening the saw chain 12 ...........................................
Chain brake 12 ..................................................................
Fuels ........................................................................13-14
Refuelling ......................................................................14
Checking the chain lubrication 15 ......................................
Adjusting the chain lubrication 15 ......................................
Starting the engine 16 ........................................................
Cold start 16 .......................................................................
Warm start 16 ....................................................................
Stopping the engine 16 ......................................................
Checking the chain brake 16 .............................................
Working in winter 17 ............................................................
Grip heating 17 ..................................................................
Adjusting the carburetor 18 ..................................................
MAINTENANCE
Sharpening the saw chain 19-20 .......................................
Cleaning the brake band and sprocket interior 21 .............
Cleaning the guide bar 21 .................................................
Replacing the saw chain 22 ...............................................
Cleaningtheairlter .................................................... 23
Replacing the spark plug 24 ..............................................
Checking the ignition spark 24 ...........................................
Checkingthemuferscrews .........................................24
Replacing/cleaning the spark arrester screen 24 ...............
Replacing the starter cable / Replacing the return
spring / Replacing the Featherlight -Start spring 25 ..........
Mounting the fan housing 25 .............................................
Cleaning the cylinder area 26 ............................................
Replacing the suction head 26 ..........................................
Instructions for periodic maintenance 27 ...........................
Service, spare parts and guarantee 28 ................................
Trouble shooting 29 ..............................................................
EU conformity declaration 29 ...............................................
Extract from spare parts list 30-31 ......................................
Accessories 30-31 .............................................................
Thank you for purchasing a MARUYAMA product!
Congratulations on choosing a MARUYAMA chain saw! We are
condent that you will be satised with this modern piece of
equipment. Experience shows in every detail of every MARUY-
AMA chain saw.
The MCV51 is very handy and robust chain saws with a new Design.
The automatic chain lubrication with variable‑ow oil pump
and maintenance-free electronic ignition ensure trouble-free
operation, while the hand-saving anti-vibration system and er-
gonomic grips and controls make work easier, safer, and less
tiring for the user.
The Featherlight-Start system lets you start the saw effortlessly
with a spring-loaded starting assist.
MARUYAMA’s chain saw MCV51 is equipped with the latest safety
features and meet all national and international standards. These
features include: hand guards on both handles, grip throttle lever
lock, chain catch, safety saw chain, and chain brake. The chain
brake can be actuated manually, and is also inertia-actuated
automatically in case of kickback.
The following industrial property rights apply: DE 10191359,
WO 01/77572, DE 20006638, US 7033149, DE 20219246, US
7204025, EP 1428637, DE 20013210, US 6648161, DE 10132973,
DE 10202360, DE 20102076, US 6814192, DE 20314982, US
7191751, DE 10157589, DE 20021316, US 6578543.
In order to ensure the proper functioning and performance
of your new chain saw, and to safeguard your own per-
sonal safety, it is imperative that you read this instruction
manual thoroughly before operation. Be especially careful
to observe all safety precautions! Failure to observe these
precautions can lead to severe injury or death!
Packing
Your MARUYAMA chain saw comes delivered in a protective
cardboard box to protect against shipping damage.
Cardboard is a basic raw material and is consequently reuseable
or suitable for recycling (waste paper recycling).
