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When returning the filter, use a pinch not to be
folded the suction pipe.

4. Spark plug 
Clean the electrodes with a wire brush and adjust
the gap to 0.6mm. (MA8)

Replacement plug: 

Champion RCJ-7Y

After spark plug maintenance, reinstall the plug
and plug cap firmly. (TORQUE: 14.7~17.6
N.m./150~180 kg-cm) Or it may cause the fire
accident. (MA9)

(1) Plug 
(2) Plug cap 

5. Sprocket 
Check for extensive wear, and replace it when the
teeth are worn over 1.0mm. (MA10)

6. Guide bar 
The bar rail should always be a square. Check for
wear of the bar rail. Apply a ruler to the bar and the
outside of a cutter. If 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.(MA11)

(1) Ruler 
(2) Gap 
(3) No gap 
(4) Chain tilts 

WARNING

WARNING

9. Maintenance

MA9

MA10

MA11

MA8

21

Summary of Contents for G2500TS

Page 1: ...duct contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm WARNING Before using our products please read this manual carefully to understand the...

Page 2: ......

Page 3: ...st 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 breakdown or d...

Page 4: ...mpion RCJ 7Y Oil feeding system Mechanical plunger pump Sprocket Pitch No of teeth 3 8in 9 38mm 6T Dimensions L W H 10 4 260 x8 8 220 x8 8 220 in mm Dry weight 6 4 2 85 lbs kg Cutting attachment Guide...

Page 5: ...n oil Position Lower front at the left side of the power unit near the oil cap c Flipping the switch to the O position immediately the engine stops Position Front at the top of the rear handle near th...

Page 6: ...saw handles 7 Keep all parts of your body away from the saw chain when the engine is running 8 Before you start the engine make sure the saw chain is not contacting anything 9 Always carry the chain s...

Page 7: ...e top of the guide bar may push the guide bar rapidly back towards the operator Either of these reactions may cause you to lose control of the saw which could result in serious personal injury Do not...

Page 8: ...hain cover 3 Fix the hanger on the rear of power unit by screw SE2 1 Hanger 4 Mount the guide bar then fit the saw chain around the bar and sprocket SE3 Pay attention to the correct direc tion of the...

Page 9: ...en the mounting nut securely with the bar tip held up TORQUE 11 8 14 7 N m 120 150 kg cm Then check the chain for smooth rotation and correct tension while moving it by hand If necessary readjustment...

Page 10: ...lammable Do not smoke or bring any flame or sparks near fuel HOW TO MIX FUEL 1 Measure out the quantities of gasoline and oil to be mixed 2 Put some of the gasoline into a clean approved fuel containe...

Page 11: ...6 Fuel and Chain oil CHAIN OIL Use motor oil SAE 10W 30 all year round or SAE 30 40 in summer and SAE 20 in winter Do not use waste or regenerated oil that can cause damage to the oil pump NOTE 11...

Page 12: ...t the choke knob to the second stage position The choke will close and the throttle lever will then be set in the starting position OP4 5 1 Throttle lever 2 Throttle interlock 3 Choke knob a when the...

Page 13: ...ine to warm up with the throttle lever pulled slightly Before you start the engine make sure the saw chain is not contacting anything CHECKING OIL SUPPLY After starting the engine run the chain at med...

Page 14: ...idle adjusting screw T counter clockwise so that saw chain does not turn If idling speed is too slow turn the screw clockwise 4 Make a test cut adjust the H needle for best cutting power not for maxim...

Page 15: ...below 1 Start the engine and grasp the handle securely with both hands 2 Pulling the throttle lever to maintain the chain operation push the brake lever left hand guard down toward the front using the...

Page 16: ...e at full throttle When the saw chain is caught in the cut do not attempt to pull it out by force but use a wedge or a lever to open the way Guard against kickback SA1 This saw is equipped with a chai...

Page 17: ...pposite side of the notch and at a level slightly higher than the bottom of the notch LOGGING AND LIMBING 1 Always ensure your foothold as well as stability of the tree 2 Be alert to the rolling over...

Page 18: ...ree Be alert to the spring back of a cut limb First check which way the limb is bent Then make a shallow cut into the compressed side to prevent the limb from being torn Cut through from the tensed si...

Page 19: ...guide bar and check the oiling port for clogging MA2 1 Oiling port 3 Guide bar Remove sawdust in the bar groove and the oiling port MA3 1 Groove 2 Oiling port Type Sprocket nose Grease the nose sproc...

Page 20: ...PO12 50CR OREGON CHAIN 91VG PERIODICAL CHECK POINTS 1 Cylinder fins 1 Remove the starter case 2 Remove sawdust between the cylinder fins MA5 1 Cylinder fin 2 Fuel filter 1 Using a wire hook take out t...

Page 21: ...may cause the fire accident MA9 1 Plug 2 Plug cap 5 Sprocket Check for extensive wear and replace it when the teeth are worn over 1 0mm MA10 6 Guide bar The bar rail should always be a square Check fo...

Page 22: ...e sure the saw chain is held securely Make sure the engine is stopped Use a round file of proper size for your chain Chain type 91VG File size 5 32 in 4 0mm Place your file on the cutter and push stra...

Page 23: ...around the muffler and take off sawdust If you do not it will cause the overheating and a fire For preventing the trouble please keep clean around the muffler This engine is air cooled Dust clogging b...

Page 24: ...E 4 9 5 9 N m 50 60 kg cm Right after stopping the engine do not touch the muffler with one s bare hands It will cause to burn your hands If carbon clogs between the muffler it will cause the poor out...

Page 25: ...25 10 Storage 1 Empty the fuel tank and run the engine out of fuel 2 Empty the oil tank 3 Clean the entire unit 4 Store the unit in a dry place out of the reach of children...

Page 26: ...l for water or substandard mixture Check air filter and fuel filter for clogging Check carburetor for inadequate adjustment Check oil for substandard quality Check oil passage and ports for clogging R...

Page 27: ...those specified in the parts list then use parts number described in the parts list 4 The contents described in the parts list may change due to improvement 5 The parts for the machine shall be suppli...

Page 28: ...28 12 Parts list Fig 1 POWER UNIT G2500TS S N 010101 and up G2500TS...

Page 29: ...2841 55310 COVER 1 82 2630 31950 SCREW tapping 2 4 3x16 83 2475 51110 DRUM 1 84 2841 51201 CLUTCH ASSY 1 85 2841 51220 SHOE 2 86 2841 51230 SPRING 2 87 2841 51242 BOSS 1 88 2841 51210 PLATE 1 89 3310...

Page 30: ...30 12 Parts list Fig 2 CARBBURETOR COMPONENTS ACCESSORIES S N 010101 and up G2500TS...

Page 31: ...VALVE 1 10 2670 81410 SPRING 1 11 T2040 81370 SHAFT ASS Y 1 12 2841 81440 LEVER 1 13 1148 81390 RING 1 14 3310 81360 SCREW 1 15 3310 81351 SCREW 4 16 2841 06030 REBUILT KIT 1 17 2850 06020 GASKET KIT...

Page 32: ...ION RELATED PART ON YOUR ENGINE IS DEFECTIVE THE PART WILL BE REPAIRED OR REPLACED BY KOMATSU ZENOAH Co OWNER S WARRANTY RESPONSIBILITIES AS THE LAWN AND GARDEN EQUIPMENT ENGINE OWNER YOU ARE RESPONSI...

Page 33: ...T THAT IS EQUIVALENT 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 O...

Page 34: ...performance ou 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 respo...

Page 35: ......

Page 36: ...KOMATSU ZENOAH AMERICA INC 4344 Shackleford Road Suite 500 Norcross Georgia 30093 Printed in Japan...

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