RedMax EXTREME EXZ2500S-BC Owner'S/Operator'S Manual Download Page 46

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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 is fouled/wet

➞

clean/dry

➞

plug gap is incorrect

➞

correct (GAP: 0.6~0.7mm)

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 it and with correct fuel

carburetor adjustment screw

➞

out of normal range

➞

adjust to normal range

muffler,cylinder (exhaust port)

➞

carbon is built-up

➞

wipe away

air cleaner

➞

clogged with dust

➞

wash

cylinder fin, fan cover

➞

clogged with dust

➞

clean

When your unit seems to need further service, please consult with our RedMax service shop in your area.

Summary of Contents for EXTREME EXZ2500S-BC

Page 1: ...birth defects or other reproductive harm WARNING Before using our products please read this manual carefully to understand the proper use of your unit WARNING EXZ PU 302845 and up EX BC 302960 and up...

Page 2: ......

Page 3: ...which must be followed in order to prevent accidents which could lead to serious bodily injury or death This mark indicates instructions which must be followed or it leads to mechanical failure break...

Page 4: ...on switch 4 Throttle cable 5 Throttle lever 6 Throttle set button 7 Drive shaft housing 8 Knob bolt 9 Spark arrester 10 Starter knob 11 Fuel tank 12 Primer pump 13 Choke lever 14 Air cleaner cover 15...

Page 5: ...ion Centrifugal clutch Rigid driveshaft Reduction ratio 4 0 Cutting head Type Reciprocating Double blade Tooth 28teeth Pitch 30 Effective cut width 16 in 40cm Angle adjust range 90 45 from cutting hea...

Page 6: ...ning label peel off or become soiled and impossible to read you should contact the dealer from which you purchased the product to order new labels and affix them in the required location s Never modif...

Page 7: ...ls on the machine IMPORTANT ENGINE INFORMATION THIS ENGINE MEETS U S EPA PH2 AND 2001 CALIFORNIA EMISSION REGULATIONS FOR SI SORE s COMPLIANCE PERIOD CATEGORYA ENGINE FAMILY 1KZXS 0254QR EM ENGINE DIS...

Page 8: ...uct you should wear proper clothing and protective equipment 1 Helmet 2 Ear protectors 3 Protection goggles or face protector 4 Thick work gloves 5 Non slip sole work boots 2 And you should carry with...

Page 9: ...the product properly and in a safe manner 2 When planning your work schedule allow plenty of time to rest Limit the amount of time over which the product is to be used continuously to somewhere aroun...

Page 10: ...teners and fuel leakage Make sure that the cutting attachment is properly installed and securely fastened 4 Be sure the debris guard is firmly attached in place 5 Always use the shoulder strap Adjust...

Page 11: ...than the width of your shoulders so that your weight is distributed evenly across both legs and always be sure to maintain a steady even posture while working 2 Keep cutting attachment below waist lev...

Page 12: ...other part or when replacing the oil or any lubricant always be sure to use only RedMax products or products which have been certified by RedMax for use with the RedMax product 4 In the event that an...

Page 13: ...nearby before refueling 4 Wipe spilled fuel completely using a dry rag if any fuel spillage occurs during refueling 5 After refueling screw the fuel cap back tightly onto the fuel tank and then carry...

Page 14: ...eaner cover 2 Connect the end of the throttle wire to the joint on the top of the carburetor SE2 CONNECTING SWITCH WIRES Connect the switch wires between the engine and the main unit Pair the wires of...

Page 15: ...While locking the gear shaft by inserting the supplied tool into the upper holder on the gear box loosen and remove the hexagon nut left handed 2 Then screw in the cutting head to the gear shaft over...

Page 16: ...imming mechanism into which the screw is to be inserted with the hole on the main pipe and screw the screw firmly in 4 Using a wrench screw in the bolt provided to fix the trimming mechanism into plac...

Page 17: ...in the bolt provided to fix the mechanism into place 1 Main pipe 2 Gear case 3 Screw hole 4 Fastening bolt 5 Bolt A standard package contains the items as shown below SE2 1 Guide bar 2 Saw chain 3 Ga...

Page 18: ...y with the bar tip held up SE6 TORQUE 8 9 11 7 N m 90 120 kg cm Then check the chain for smooth rotation and correct tension while moving it by hand If necessary readjustment 1 Tighten It is very impo...

Page 19: ...h the provided 3 screws then clamp it to the shaft tube with 2 screws SE2 3 Place the blade between the cutter holders A and B while locking the gear shaft by putting the bar one of the tools provided...

Page 20: ...thout addition of any major hardware or the introduction of an inert material during combustion These engines are certified to operate on unleaded gasoline Make sure to use gasoline with a minimum oct...

Page 21: ...fueling point before starting the engine 3 Stop the engine before refueling the unit FOR YOUR ENGINE LIFE AVOID 1 FUEL WITH NO OIL RAW GASOLINE It will cause severe damage to the internal engine part...

Page 22: ...the engine running The cutting head will start rotating upon the engine starts 1 Feed fuel into the fuel tank and tighten the cap securely OP3 1 EX PS only Feed the chain oil into the oil tank and tig...

Page 23: ...into contact with any obstacle when the engine starts OP8 Avoid pulling the rope to its end or returning it by releasing the knob Such actions can cause starter failures 7 Move the choke lever downwar...

Page 24: ...adjuster as required OP9 1 cable adjuster ADJUSTING IDLING SPEED OP10 1 When the engine tends stop frequently at idling mode turn the adjusting screw clockwise 2 When the cutting head keeps rotating...

Page 25: ...material 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...

Page 26: ...ducts which have been certified by RedMax When sharpening removing or reattaching the blade be sure to wear thick sturdy gloves and use only proper tools and equipment to prevent injury SET UP 1 Detac...

Page 27: ...any obstacle when the engine starts OP5 CUTTING METHOD a Use the front left side cutting b Guide the blade from your right to left with it tilted slightly to your left OP6 c When mowing a wide area st...

Page 28: ...me parallel to the ground OP8 Make sure to use shoulder strap and debris guard If not it is vary dangerous when you slip or lose your balance CONTROLLING BLADE BOUNCE Kick out can cause serious person...

Page 29: ...the chance of bounce e Avoid feeding the blade too rapidly The blade can bounce away from material being cut if the blade is fed faster than its cutting capability f Cut only from your right to your l...

Page 30: ...when using a grinder It is recommended that filing should be done by professionals Especially regarding filing the saw blade Leave it to the professionals TRANSPORTING THE UNIT When you finish cutting...

Page 31: ...mity with the blades Always wear work gloves made of leather or some other sturdy material when using the trimmer Always place the blade cover provided with the trimmer over the blades when not in use...

Page 32: ...te will speed oil consumption requiring more frequent checks on the oil reservoir To ensure sufficient lubrication It may be necessary to check the oil level more frequently than at fuel tank refills...

Page 33: ...ion there are three incremental settings a Clockwise decrease lubrication b Counter clockwise increase lubrication c Middle Always wear work gloves made of leather or some other sturdy material when u...

Page 34: ...own by the blade Do not adjust the wheel height or try to remove anything entangled to the blade with the engine running 1 Before starting the engine adjust the wheel height for desired cutting depth...

Page 35: ...0 7mm spark plug plug gap replace if necessary cylinder fins intake air cooling vent clean muffler spark arrester cylinder exhaust port clean throttle lever ignition switch check operation replace if...

Page 36: ...d the fuel filter for blockage MA2 1 fuel filter SPARK PLUG Starting failure and mis firing are often caused by a fouled spark plug Clean the spark plug and check that the plug gap is in the correct r...

Page 37: ...4 1 spark arrester INTAKE AIR COOLING VENT Never touch the cylinder muffler or spark plugs with your bare hands immediately after stopping the engine The engine can become very hot when in operation a...

Page 38: ...the part of the brushcutter MA6 1 cylinder 2 intake air cooling vent back PROCEDURES TO BE PERFORMED AFTER EVERY 100 HOURS OF USE 1 Remove the muffler insert a screwdriver into the vent and wipe away...

Page 39: ...h part of the line MA2 4 Wind up the line in the correct direction as indicated on the spool MA3 5 Hook each end of the line in the slot on the edge of the spool and then put the ends through the eyel...

Page 40: ...ew too tightly may make it impossible for the blades to move Conversely not screwing in the screw tightly enough may make the blades of the trimmer feel dull and cause leaves and branches to become ca...

Page 41: ...he guide bar and check the oiling port for clogging MA1 1 Oiling port GUIDE BAR Remove sawdust in the bar groove and the oiling port MA2 1 Groove 2 Oiling port Type Sprocket nose Grease the nose sproc...

Page 42: ...very important for smooth and safe operation to keep the cutters always sharp Your cutters need to be sharpened when Sawdust becomes powder like You need extra force to saw in The cut way does not go...

Page 43: ...re every cutter has the same length and edge angles as illustrated MA8 4 Cutter length 5 Filing angle 6 Side plate angle 7 Top plate cutting angle GEAR CASE The reduction gears are lubricated by multi...

Page 44: ...ease in the gear case At every 20 hours of use supply the gear case with new grease Remove the cutter holders before installing new grease to arrange for old grease to exit When removing and installin...

Page 45: ...causes of engine starting failure Before storing the unit empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor Store the unit indoor taking neces...

Page 46: ...ect GAP 0 6 0 7mm 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 it and wi...

Page 47: ...e contents described in the parts list may change due to improvement 5 The parts for the machine shall be supplied seven 7 years after the machine is discontinued It is possible that some specific par...

Page 48: ...12 Parts list 48 Fig 1 EXZ PU S N 302845 and up...

Page 49: ...CORD A T3002 12220 1 17 CORD B T3002 12230 1 18 TUBE T3002 12240 1 19 CABLE T3002 83100 1 20 HANGER ASSY 6420 17300 1 21 HANGER COMP 6420 17400 1 22 HANGER 9366 17110 1 23 CLAMP 9366 17120 1 24 SLEEVE...

Page 50: ...12 Parts list 50 Fig 2 EX BC S N 302960 and up...

Page 51: ...3350 1 19 WASHER 01641 20608 1 20 GUARD ASSY T3002 24001 1 21 GUARD COMP T3002 24101 1 22 BLADE T3002 24121 1 23 SCREW 0263 90516 1 24 NUT 3320 15310 1 25 PLATE 6489 24120 1 26 BOLT 01252 30514 4 27 T...

Page 52: ...Fig 3 ENGINE UNIT 352001 and up 52 12 Parts list...

Page 53: ...art Number Q ty 73 SCREW adjuster 1918 81170 1 74 SCREW 1850 81530 4 75 WASHER 5500 81160 1 76 SCREW M5x60 0263 90560 2 77 MUFFLER ASS Y 4810 15100 1 78 MUFFLER 4810 15111 1 79 ARRESTER 4810 15140 1 8...

Page 54: ...12 Parts list 54 Fig 4 EX LRT S N 000531 and up...

Page 55: ...6x15x2 0 6782 13650 1 35 BEARING 608 2RS 6598 13430 1 36 SNAP RING 04065 02212 1 37 SHAFT KIT T4008 06010 1 38 SHAFT 1 39 GEAR B 1 40 GEAR C T4008 13630 1 41 BOSS 1 42 SPRING T4008 13650 1 43 PLATE T4...

Page 56: ...12 Parts list 56 Fig 5 EX PS S N 000000 and up...

Page 57: ...3073 13800 1 22 COLLAR T3073 13820 2 23 VALVE T3073 13830 1 24 SCREW T3073 13860 2 25 OIL CAP ASS Y T3073 13900 1 26 GASKET OIL CAP T3073 13920 1 27 GEAR SHAFT T3073 13370 1 28 BEVEL pinion T3073 1338...

Page 58: ...12 Parts list 58 Fig 6 EX HE S N 000101 and up...

Page 59: ...121 1 30 CAP U 3257 14192 1 31 BOLT 01252 30522 2 32 BOLT 01252 30525 4 33 GUARD ASS Y 6367 24001 1 34 GUARD COMP 6367 24101 1 35 GUARD 6367 24111 1 36 PLATE 6367 24120 1 37 PLATE 6367 24131 1 38 BOLT...

Page 60: ...sibilities As the small off road engine owner you are responsible for the performance of the required maintenance listed in your owner s manual KOMATSU ZENOAH recommends that you retain all receipts c...

Page 61: ...ALENT IN PERFORMANCE AND DULABILITY MAY BE USED IN NON WARRANTY MAINTENANCE OR REPAIRS AND SHALL NOT REDUCE THE WARRANTY OBLIGATION OF THE COMPANY THE COMPANY IS LIABLE FOR DAMAGES TO OTHER ENGINE COM...

Page 62: ...en durabilit peut tre utilis e pour l entretien hors garantie ou les r parations hors garantie et ce sans r duire l obligation de garantie incombant la soci t La soci t sera tenue responsable des domm...

Page 63: ......

Page 64: ...KOMATSU ZENOAH AMERICA INC 4344 Shackleford Road Suite 500 Norcross Georgia 30093 Printed in Japan...

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