Daewoo DMT520 User Manual Download Page 27

26

SPARK PLUG 

Starting failure and misfiring are ollen caused by a fouled spark plug. Clean 
the spark plug and check that the plug gap is in the corree! range. For a 
replacement plug, use the corree! type specified by your supplier.

 IMPORTANT 

Note that using any spark plug other than those designated may resull in the 
engine failing to operate properly or in the engine becoming overhealed and 
damaged. 
To inslall lhe spark plug, first lurn lhe plug until it is finger light, then lighlen il 
a quarler turn more wilh a socket wrench.

TIGHTENING TORQUE: 9·8 -11 ·8 N.m.  
 

 

 

     (1 - 1.2 kg.m.) 

MUFFLER 

 WARNING

Inspect periodically, the muffler for loose fasteners, any damage or 
corrosion. If any sign of exhaust leakage is found, stop using the machi-
ne and have it repaired immediately. 
Note that failing to do so may reault in the engine catching on tire. 

INTAKE AIR COOLINQ VENT

 WARNING

Never touch the cylinder, muffler, or apark plugs with your bare hand11 
immediately after stopping the engine. The engine can become very hot 
when in operation, and doing 110 could result in 11evere burns. 
When checking the machina to make aura that it is okay befare using it, 
check the ares around the muffier and remove any wood chips or leavee 
which have attached themseives to the bruahcutter. Failing to do so 
could cause the muffler to become overheated and that in turn could 
cause the engine to catch on fire. Alway11 make sure that the muffler is 
clean and free of wood chips, leaves, and other waste befare u11e. Check 
the lntake alr coollng vent and the ares around the cylinder cooling fina 
after every 25 hours of use for blockage, and remove any waste which 
has attached itself to the bruahcutter. Note that lt Is necessary to 
remove the engine cover In order to be able to vlew the upper part of the 
cyllnder. 

 IMPORTANT

lf waste gets stuck and causes blockage around the intake air cooling ven! 
or between !he cylinder fins, it may cause !he engine to overheat, and that in 
turn may cause mechanical failure on the par! of the brushcutter. 

Summary of Contents for DMT520

Page 1: ...Manufactured under license of Daewoo International Corporation Korea www daewoopowerproducts com USER S MANUAL DMT520 Multifunctional brush cutter...

Page 2: ...ON THE MACHINE 2 3 SYMBOLS ON THE MACHINE 3 4 FOR SAFE OPERATION 3 5 SET UP 9 6 FUEL AND CHAIN OIL 14 7 OPERATION 15 8 OPERATION OPTIONAL BLADE USAGE 19 9 MAINTENANCE 25 10 TROUBLESHOOTING GUIDE 31 11...

Page 3: ...tion 4 Wear gloves 5 Beware of thrown objects 6 Warning Attention 7 Keep all chlldren bystanders and helpers 15 meters away from the machlne Air filter Muffler Throttle cable Throttle trigger Shaft tu...

Page 4: ...the rod by screwdriver follow the arrow to the AX position the chain oil flow more and if you turn to the IN position less Position Bottom of the TRANSMISSION 4 FOR SAFE OPERATION 1 Read this manual c...

Page 5: ...conditions might make it unsafe to use the product WORKING PLAN 1 You should never use the product when under the influence of alcohol when suffering from exhaustion or lack of sleep when suffering f...

Page 6: ...tachment guard is firmly attached in place 5 Always use the harness Adjust the strap for comfort be ore starting the engine The strap should be adjusted so the left hand can comfortably hold the handl...

Page 7: ...ing down the engine Doing so could result in serious burns or electrical shock 7 Never operate the pruner at an angle greater than 60 in order to reduce the risk of being struck by falling objects dur...

Page 8: ...mixed fuel which contains highly flammable gasoline Never stare cans of fuel or refill the tank of the unit in any place where there is a boiler stove wood fire electrical sparks welding sparks or an...

Page 9: ...should take severa steps to keep cutting jobs free from accident or injury 1 With a basic undarstanding of kickback you can reduce or eliminate the element of surprise Sudden surprise contributes to...

Page 10: ...high RPM without a load Doing so could damage the engine Keep the pruner as clean as possible Keep it free of loase vegetation mud etc 5 SET UP MOUNTING ENGINE 1 Push the shaft tube toward the clutch...

Page 11: ...the switch wires between the engine and the main unit Pair the wires of the same color SUSPENSION POINT NOTE Be the SUSPENSION POINT in the location of the arrow mark INSTALLING HANDLE NOTE The handl...

Page 12: ...Wear the provided harness without twisted bands with the hanger on your right side BALANCE THE UNIT 1 Hook your machine to the hanger 2 Adjust the bands of the harness to have the blade parallel to t...

Page 13: ...ng an the working posture slide clamp up or down until unit balances and the strap fits your body ATTACHING THE PRUNING MECHANISM 1 Main pipe 2 Transmission 3 Screw hole 4 Fastening bolt 5 Bolt 1 Rema...

Page 14: ...a 2 Moving direction 3 Chain tensioner nut 4 Adjust the chain tension by turning the tensioner screw until the tie straps just touch the bottom side of the bar rail 1 Chain tension adjusting screw a L...

Page 15: ...escribed there is a danger that the engine temperature may rise and an engine problem such as piston seizing may consequently occur Unleaded gasoline is recommended to reduce the contamination of the...

Page 16: ...brication 3 OIL FOR 4 CYCLE ENGINE USE lt can cause spark plug fouling exhaust port blocking or piston ring sticking 4R Mixed fuels which have been left unused for a period of one month or more may cl...

Page 17: ...downward to open the choke And restart engine 1 Choke lever 2 Glose 3 Open 8 Allow the engine to warm up for a severa minutes before starting opera tion NOTE 1 When restarting the engine immediately...

Page 18: ...lockwise NOTE arm up the engins before adjusting the idling spsed WARNING The cutting head will start rotating upon the engine starts 1 Feed fuel into the fuel tank and tighten the cap secursly Feed t...

Page 19: ...ial being cut Heavy growth will require slower action than will light growth 4 Never swing the unit so hard as you are in danger of losing your balance or control of the unit 5 Try to control the cutt...

Page 20: ...blade be sure to wear thick sturdy gloves and use only proper tools and equlpment to prevent lnjury SETUP 1 Cover 2 Holder 1 Detach the line head assembly completely 2 Put on the blade making the mar...

Page 21: ...too deep into weeds Adjust the engine speed and cutting depth according to the condition of object WARNING lf the grass or other object gets caught in the blade or if the unit starts to shake or vibra...

Page 22: ...an help eliminate the element of surprise b Cut fibrous weeds and grass only Do not let the blade contact materials it cannot cut such as hard woody vines and bushes or rocks fences metal etc c Be ext...

Page 23: ...nces detach the blade and lasten the unit by rapes WARNING This product is equipped with extremely sharp blades and when used improperly these blades can be extremely dangerous and improper handling c...

Page 24: ...e engine 2 Turn the bolt located on the top of the trimming mechanism counter cloc kwise to loasen it 3 Adjust the angle of the blades to the desired angle and then fix the bolt firmly back into place...

Page 25: ...tank 2 Chain cover IMPORTANT The oil flow adjusting screw must be pressed in slightly in arder to turn Failure to do so could damage the pump and screw 3 With a screwdriver push in on the oil flow ra...

Page 26: ...System components Procedure Before use Every 25 hours after Every 50 hours after Note fuel leaks fuel soillaaee fuel tank air filler fuel filler idle adjusting screw wipe out inspect clean see adjusti...

Page 27: ...ark plugs with your bare hand11 immediately after stopping the engine The engine can become very hot when in operation and doing 110 could result in 11evere burns When checking the machina to make aur...

Page 28: ...ing a larger line as it may cut down the trimming performance WARNING For safety reasons do not use metalrelnforced line 2 Pinch the slotted area on the both sides of the spool housing to unhook the b...

Page 29: ...the lock nut 4 Check to make sure that the flat washer C is loose enough so that it may be turned by pressing on it with a finger NOTE Screwing in the screw too tightly may make it impossible for the...

Page 30: ...the outside of a cutter 11 a gap is observed between them the rail is normal Otherwise the bar rail is worn Such a bar needs to be corrected or replaced 1 Ruler 2 Gap 3 No gap 4 Chain lilts SPROCKET C...

Page 31: ...shoulder round 3 Depth gauge standard WARNING Be sure to round off the front edge to reduce the chance of klckback or tie strap breakage Make sure every cutter has the same length and edge angles as i...

Page 32: ...rect correct GAP 0 6 0 7 mm spark plug disconnected retighten Case 2 Engine starts but does not keep running hard re starting CHECK PROBABLE CAUSES ACTION fuel tank incorrect fuel or staled fuel drain...

Page 33: ...www daewoopowerproducts com Manufactured under license of Daewoo International Corporation Korea...

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