Zenoah Brush Cutter YM415FW User Manual

848JJ693A0 (602)  
OPERATOR’S MANUAL  
BRUSHCUTTER  
YM 415 FW  
 
Set up  
ENGINE  
Using attached 4 socket screws, secure the connection firmly with equal force. (F1)  
F1  
INSTALLING HANDLE  
F2  
1. Loosen the 4 bolts on the handle bracket. (F2)  
2. Insert the right handle (throttle lever is attached) and the left handle assembly into the  
bracket and retighten the bolts securely. (F2)  
(1) Handle bracket (2) Right handle (3) Bolt  
(4) Left handle (5) Engine side  
3. Remove the screw (F3-1) from the right grip (F3-2) and put the grip onto the right  
handle. Align the positioning holes and put the screw through them. Fasten the clamp.  
(F3-3)  
F3  
PROTECTOR  
F4  
F5  
Wrap the protector around the outer pipe as shown in the figure (F4), and fasten the  
hooks.  
SAFETY GUARD  
Attach the safety guard to the gear case and fix it with the clamp and 2 bolts (M5 x 25)  
securely. (F5)  
(1) Bolt (2) Clamp (3) Main pipe (4) Safety guard  
BLADE  
F6  
1. Put the angled bar (F6-1) into the side holes of the inner holder (F6-4)and the  
gearcase.  
2. Remove the blade bolt (F6-2, Lefthanded) and the outer holder (F6-3) from the  
gearshaft.  
3. Put the blade onto the inner holder.  
4. Put the outer holder onto the gearshaft making the recessed side face the blade.  
5. Fasten the blade by the blade bolt with the washers (F6-5) and the bolt cover (F6-6).  
Detailed attachments and set up method will be shown in separate Thai language  
manual.  
3
 
Fuel  
WARNING  
Keep open flames away from the area where fuel is handled or stored.  
F7  
Mix and store fuel only in an approved gasoline container.  
Mix a regular grade gasoline (leaded or unleaded, alcohol-free) and a quality-proven  
motor oil for air cooled 2-cycle gasoline engine use.  
Recommended mixing ratio:  
25 : 1 Mix Chart  
Condition  
Up to 20 hours use  
After 20 hours use  
Gasoline : Oil  
Gasoline (liters)  
2-cycle oil (ml.)  
1
2
3
4
5
20 : 1  
25 : 1  
40 80 120 160 200  
NOTE  
Most engine troubles are caused, directly or indirectly, by the fuel used on the  
machine. Take special care not to mix a motor oil for 4-cycle engine use.  
Use  
STARTING THE ENGINE  
F8  
WARNING  
Take care that the cutting head will start rotating upon the engine starts.  
1. Open the fuel tank cock. (F8-1-b)  
2. Move the choke lever to the closed position. (F8-2-a)  
3. Set the engine switch (F10-a) to the " I " position. Set the throttle lever to the start  
position. (F10, 1-2-3)  
F10  
4. Place the unit on a flat, firm place. Keep the cutting head clear of everything around it.  
5. While holding the unit firmly, pull out the starter rope quickly. (F11)  
6. After the engine has started, open the choke gradually and allow the engine to warm  
up. Pull the throttle lever to unlock it.  
STOPPING ENGINE  
1. Release the throttle lever .  
F11  
F12  
2. Move the engine switch to the “ O ” position.  
ADJUSTING THROTTLE CABLE  
The normal play is 1 or 2mm when measured at the carburetor side end. Readjust with  
the cable adjuster (F12-1) as required.  
ADJUSTING IDLING SPEED  
It is normal that the engine keeps running without the blade rotation, when the throttle  
lever is released. When the engine speed is too high or too slow, readjust the idle set  
screw. (F12-2)  
4
 
Use  
Cutting work  
F13  
By using the shoulder strap, hang the unit on your right side. Adjust the strap length so  
that the cutting head may become parallel to the ground. (F13)  
SWIVEL LOCK  
F14  
a) When the unit is not hung down with the harness, as in transportation, use the swivel  
lock to prevent the engine from roll down.  
b) To lock the swivel, thrn the wing nut (F14-1) clockwise.  
c) For normal operation, keep the wing nut loose.  
Choose a suitable recommended cutting attachment according to the object to be cut.  
(F15) Never use other cutting attachement not approved by YANMAR S.P.  
WHEN USING A METAL BLADE  
F15  
1. Check the bolt to fasten the blade and be sure the bolt has no fault, and no abrasion.  
2. Be sure that the blade and the holder have been fastened according to instruction and  
the blade turns smoothly without abnormal noise.  
The rotating parts fastened incorrectly may cause serious accident to the  
operator.  
CUTTING METHOD  
F15  
(a) Use the front left side for cutting.  
(b) Guide the blade from your right to left with it tilted slightly to your left. (F16)  
(c) When mowing a wide area, start working from your left end to avoid interference of cut  
grass.  
(d) The blade may be seized by weeds if the engine speed is too low, or the blade cuts too  
deep into weeds. Adjust the engine speed and cutting depth according to the condition  
of object.  
WARNING  
For your health and to prevent the risk from vibration, refrain from working for a long  
time at the cold temperature.  
F22  
WHEN USING A NYLON LINE HEAD  
1. Guide the head from your left to right to let the cut grass be thrown away from you.  
(F22)  
2. Always do cutting with the engine running at full throttle.  
3. Use only the tip of the oine for cutting, and allow it to trim at its own pace.  
5
 
Maintenance  
WARNING  
Before cleaning, inspecting, or repairing the unit, make sure that the  
engine has stopped and is cool.  
F18  
BLADE  
Check the blade and the fasteners for looseness, cracking, or bending.  
Check the cutting edges and reform with a flat file.  
Point (F18):  
1. Keep the end corner sharp.  
2. Round the root of the edge.  
3. Do not use water when using a grinder.  
AIR CLEANER  
F19  
Check and clean the filter element in warm, soapy water as required. Dry completely  
before installing. If the element is broken or shrunk, replace with a new one. (F19)  
(1) Cover (2) Element (3) Screen (4) Body  
IMPORTANT  
A clogged air filter may increase fuel consumption while cutting down the engine power.  
And operate the brushcutter without the air filter or with a deformed filter element will  
quickly ruin the engine.  
FUEL FILTER  
F20  
Take the filter out of the fueling port using a small wire hook. Disconnect the filter  
assembly from the fuel pipe and unhook the retainer to disassemble it. Clean the  
components with gasoline. (F20)  
(1) Strainer (2) Fuel tank  
IMPORTANT  
A clogged fuel filter may cause poor acceleration of the engine.  
SPARK PLUG  
F21a  
Starting failure and mis-firing are often caused by a fouled spark plug. Periodically  
clean the spark plug and replace with a new one as required. (F21a)  
REPLACEMENT PLUG IS A Champion CJ-6Y.  
0.6 — 0.7mm  
GEAR CASE  
Supply multi-purpose grease at every 25 hours of use.  
Remove the cutter holders to arrange for old grease to exit. (F21)  
F21  
(1) Inner holder (2) Plug  
MAINTENANCE BEFORE STORAGE  
Old fuel left in the carburetor may cause starting failure. When a series of operation  
finished, make sure to empty the fuel tank and drain the carburetor.  
IMPORTANT  
Check all parts and the functions. If the failured or damaged parts have been found,  
replace them with new ones.  
6
 
Limited warranty  
Specifications  
Should any failure occur on the product  
under normal operating conditions within  
the applicable warranty period, the failed  
part will be replaced or repaired at free of  
charge by YANMAR S.P. authorized  
dealer.  
Model name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . YM415FW  
Engine model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G45L  
3
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.5cm  
Carburetor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Float  
Ignition system. . . . . . . . . . . . . . . . . . . . . . . IC controlled flywheel magneto  
Spark plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Champion CJ-6Y  
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . Mixture (Gasoline 25 : 2-Cycle Oil 1)  
Fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 litres  
Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recoil starter  
Clutch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cetrifugal type  
Reduction ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.333  
Cutter rotation . . . . . . . . . . . . . Counter-clockwise as viewed from operator  
WARRANTY PERIOD: 6 months from the  
date of initial purchase.  
IMPORTANT: The following cases are not  
covered by this warranty:  
(a) Any failure resulted from neglect of  
instructions for proper operation and  
maintenance of the product described  
in the operator's manual.  
(b) Any damage due to accidents, abuse,  
negligence, alteration, or use of any  
parts or accessories other than those  
specified by YANMAR S.P.  
Overall dimension L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800mm  
W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 630mm  
(c) Any failure due to use of improper fuel.  
H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480mm  
(d) Replacement of normally consumed  
parts: cutter blades, spark plugs,  
starter ropes, etc.  
Dry weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3kg  
Specifications are subject to change without notice  
(e) Regular maintenance and adjustments  
explained in the operator's manual.  
(f) Incidental or consequential damages.  
(g) Transportation  
failed/repaired unit.  
charge  
for  
Nothing contained in this warranty affects  
the consumer's statutory rights.  
7
 
Distributed by  
YANMAR S.P. CO., LTD.  
LAD KRABANG INDUSTRIAL ESTATE  
109 Moo 9 Chalong Krung Rd., Lamplatiew  
Lad Krang Bangkok 10520 Thailand.  
PRINTED ON RECYCLED PAPER  
PRINTED IN JAPAN  
 

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