Zenoah HC510DV - Manuals - manualsarea.com

Page 3 - SAFETY FIRST; s y m b o l c o n c e r n; NOTE; CONTENTS

SAFETY FIRST Instructions contained in warnings within thism a n u a l m a r k e d w i t h a s y m b o l c o n c e r n c r i t i c a l p o i n t s w h i c h m u s t b e t a k e n i n t oc o n s i d e r a t i o n t o p r e v e n t p o s s i b l e s e r i o u sb o d i l y i n j u r y , a n d f o r t h...

Page 4 - Max. Speed ···························································································· 12500; Fuel ······················································································· Mixture(Gasoline 50 : Oil 1); Maximum Cut in Depth (by 14 in. Blade) ··········································································135 mm

2. Specifications Model Name and Number ···································································CUT-OFF SAW, HC510DVOverall Size (with 14 in. Blade)(LxWxH) ························· 29.4(735)x9.4(235)x19.8(495) in. (mm)Dry Weight (excluding Blade) ·········································...

Page 5 - Warning labels on the machine

If warning label peel off or becomesoiled and impossible to read, youshould contact the dealer from whichyou purchased the product to ordern e w l a b e l s a n d a f f i x t h e m i n t h erequired location(s). Never modify your machine.We won't warrant the machine, ifyou use the remodeled machineo...

Page 6 - WARNING; Symbols on the machine

 6  For safe operation and maintenance, symbols arei n d i c a t e d o n t h e m a c h i n e . A c c o r d i n g t o t h e s eindications, please be careful not to take a mistake. (a) The port to refuel the "MIX GASOLINE" Position: FUEL TANK CAP (b) Choke will close when pulling the choke ...

Page 7 - For safe operation; BEFORE USING THE MACHINE

 7  5. For safe operation ■ BEFORE USING THE MACHINE a. Cut-off saws are high-speed cutting tools and very dangerous to operate; therefore it is veryimportant that you read and fully understand thecontents of the owner’s manual before using. b. This unit has been designed for use in cutting concre...

Page 10 - OPERATION SAFETY PRECAUTIONS

 10  the other one’s presence and how to sign thedanger etc. d. Fix the cutting object if it is unfixed.e. Never operate the engine without wheel guard. f. Adjust the wheel guard to deflect sparks, dust, a n d m a t e r i a l a w a y f r o m t h e o p e r a t o r a n dflammable materials. g. Inspe...

Page 12 - CHANGE OF DUST STOPPER

Use adequate cutter blades suited to materialsto be cut. Use of inadequate cutter blades maycause irregular wear of blades, poor cuttingperformances, or irregular overheating, etc.Continuance of those inadequate operationsm a y d a m a g e t h e b l a d e s a n d c a u s e s e r i o u saccidents. ■ ...

Page 13 - IMPORTANT

■ MOUNTING OF CUTTER BLADE The flange bolt shall be securely fixed. (Fixing torque: 266~434 in-lbs (30~50 N·m))Insufficient fixing of the bolt may cause brakeaway of the blade and is extremely dangerous. 1. U n s c r e w a f l a n g e b o l t a n d r e m o v e f l a n g e washer (A). 2. M o u n t a ...

Page 14 - • G a s o l i n e i s v e r y f l a m m a b l e . A v o i d

 14  7. Fuel ■ RECOMMENDED MIXING RATIOGASOLINE 50:OIL 1(when using ZENOAH genuine oil) • Exhaust emission are controlled by the fundamental engine parameters andcomponents(eq., carburation, ignitiont i m i n g a n d p o r t t i m i n g ) w i t h o u taddition of any major hardware or theintroduct...

Page 15 - FUELING THE UNIT

7. Fuel  15  again for at least one minute. As someoils may be difficult to agitate dependingon oil ingredients, sufficient agitation isnecessary for the engine to last long. Becareful that, if the agitation is insufficient,t h e r e i s a n i n c r e a s e d d a n g e r o f e a r l yp i s t o n s...

Page 18 - Return the throttle lever and operate for a while

 18  In case of cold start of the engine, apply 1~2minutes of warming up operation before use. ■ STOPPING ENGINE • I n a n e m e r g e n c y , i m m e d i a t e l y s t o p t h e engine. • Even after stopping the engine, the cutter blade continues to turn awhile by inertia. Donot touch the blade u...

Page 21 - SPARK PLUG; Use specified spark plug for exchange.; Specified Spark Plug:

• C l o g g i n g o f a i r f i l t e r r e d u c e s e n g i n e performances. Inside of an engine will quicklyw e a r b y d u s t s i f a n a i r c l e a n e r c o v e r i s n o tcorrectly fitted or if a filter is missed, deformed,or damaged. • Avoid dusts to penetrate into the engine when removin...

Page 22 - • When the spark plug or air filter is removed for; BLADE DRIVE BELT

 22  In case the fuel filter is clogged or the fuel pipe isb e n t , e n g i n e s p e e d m a y n o t i n c r e a s e o r m a ybecome unstable. ■ COOLING AIR PASSAGE • Do not touch the cylinder, muffler or spark p l u g b y b a r e h a n d s i m m e d i a t e l y a f t e rstopping the engine. The...

Page 23 - BELT EXCHANGE

9. Maintenance This machine is equipped with a spring loadedsemi-automatic tensioner. Therefore, by slackeningcutting head fixing nuts and bolts, correct tension isalways maintained. (MA6) A p p l y f o l l o w i n g p r o c e d u r e s i f r e a d j u s t m e n t i srequired: (1) Cutting head(2) Sp...

Page 24 - ASSEMBLING PROCEDURE

 24  MA11 9. Maintenance 3. Slacken a stay bolt on opposite side and remove together with a washer. (MA10) (1) Stay(2) Washer(3) Bolt 4. Slacken a semi-auto tensioner bolt using angle w r e n c h . P u s h t h e c u t t i n g h e a d t o w a r d t h eengine while swinging it up and down to slacken...

Page 26 - When adjusting, take the following steps:

 26  9. Maintenance 4. Tighten the centre bolt of the idler pulley to fix the belt adjustment plate. 5. Fit the belt cover as original. ■ ENGINE ADJUSTMENT (MA15) It is dangerous if the cutter blade continues toturn even fingers are removed from the throttlelever. In case it is not solved by readj...

Page 27 - Make a test cut adjust the H needle for best

4. Make a test cut adjust the H needle for best cutting power, not for maximum speed. Standard Idle Speed: 2300~2700 rpm. (1) Idle adjust screw (T)(2) Low speed needle (L)(3) High speed needle (H) 9. Maintenance  27 

Page 28 - STARTER ROPE EXCHANGE; Pull out the starter rope and make a temporary

 28  9. Maintenance ■ STARTER ROPE EXCHANGE W h e n e x c h a n g i n g t h e s t a r t e r r o p e , p a yattention so that built-in recoil spring does notjump out. Mistake in operation may end up withinjury to the eye, etc. by jumped out spring. T h e s t a r t e r r o p e w e a r s a n d d e t ...

Page 32 - Troubleshooting guide; Case 1. Starting failure

 32  11. Troubleshooting guide Case 1. Starting failure CHECK PROBABLE CAUSES ACTION fuel tank ➞ incorrect fuel ➞ drain it and with correct fuel fuel filter ➞ fuel filter is clogged ➞ clean carburetor adjustment screw ➞ out of normal range ➞ adjust to normal range sparking (no spark) ➞ spark plug ...

Page 41 - ACCESSORIES & TOOL SET

 41  Key# Part Number Description Q'ty 1 2894-92310 PLATE for 12" 1 2 2894-68310 CLUMP 1 3 2894-68210 DUST HOSE 1 4 2894-68110 DUST BAG 1 5 3388-92110 MASK 1 6 6242-92110 GOGGLE 1 7 2894-91000 TOOL SET 1 8 3345-91110 • BAG 1 9 3320-91140 • PLUG WRENCH 1 10 3582-91330 • BAR 1 11 2670-91150 • DR...

Page 42 - CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

The California Air Resources Board and KOMATSU ZENOAH are pleased to explain the emission control system warranty on your 2005 and later small off-road engine. In California, new small off-road engines must be designed, built and equipped to meet the state’s stringentanti-smog standards. KOMATSU ZEN...