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13

EC7500.23

1. Turn the on-off switch 

On.

WARNING!

The cut-off wheel must not rotate
at idle speed. If it rotates, reduce
idle speed by adjusting the idle
adjust screw.

2. Push the decompression valve in.

3. Pull the choke all the way out and

push it back to the original position
(choke open). The throttle is
automatically set at a fast idle
position.

4. Follow Steps 5 though 12, 

Starting

a Cold Engine

 (previous page).

Starting a Warm Engine

EC7500.24

If the engine fails to start, repeat the
appropriate starting procedure for a
cold or warm engine.

WARNING!

Keep well away from fire!

If the engine still does not start,

1. Pull the choke all way out.

2. Unscrew the knob on the cleaner

cover and remove the cleaner
cover. See Figure 11.

If the Engine Doesn’t Start

Figure 11

3. Unscrew the two bolts securing the

filter element, remove the filter
element. See Figure 12.

Figure 12

Choke

4. Remove the plug cap and discon-

nect the spark plug by using the
plug wrench. See Figure 13. Check
to see if the spark plug electrode is
fuel-soaked.

5. If the spark plug is wet, dry it

completely. Clear excess fuel from
the combustion chamber by
cranking the engine several times
with the spark plug is removed.

6. Reassemble the spark plug, plug

cap, filter and cleaner cover.

7. Follow the appropriate starting

procedure described above.

8. If the spark plug is dry, fuel is likely

not being supplied to the combus-
tion chamber properly.

Check the fuel filter and carbure-
tor. Refer to the Inspection and
Maintenance Section.

Refer to the Troubleshooting
Section, page 24.

If the engine still does not start,
contact your Shindaiwa dealer.

Stopping the Engine

EC7500.25

Figure 13

Let the engine run at idle speed for 2-3
minutes, then turn the on-off switch

Off.

16

Inspection and Maintenance

Item

What to Do

Daily

Weekly Monthly As Req’d

Air Cleaner

Clean

Cut-off Wheel

Check & Sharpen

Bolts/Screws

Check & Retighten

Fuel Cap

Check Leakage

Fuel Tank

Check Leakage

Wheel Guard

Check Function

Clutch Bearing Grease

Belt

Check and Adjust

Spark Plug

Check and Clean

Cylinder Fins

Clean

Fuel Filter

Clean

Carburetor

Adjust

Inspection and Maintenance Requirements

  Figure 19

5. Making sure that the drive belt is

fully engaged in the drive pulleys,
slide the belt cover on and install
the two socket-head bolts into the
left-hand side of the mounting
surface only until the bolts bottom
on the belt cover. See Figure 19.

6mm Socket-

Head Bolts

  Figure 20

6. Adjust the tension screw until the

tension indicator is in the middle of
the scale. See Figure 20.

7. Tighten the two mounting bolts

securely.

8. Reconnect the main water line,

adjust and retighten water nozzles
(if equipped with a water kit).

9. Reinstall the cutting wheel.

Reversing cutting head for flush cutting operations (cont.)

MAINTENANCE, REPLACEMENT, OR REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEM MAY BE PERFORMED BY ANY REPAIR ESTABLISH-
MENT OR INDIVIDUAL.  HOWEVER, WARRANTY REPAIRS MUST BE PER-
FORMED BY A DEALER OR SERVICE CENTER AUTHORIZED BY SHIN-DAIWA
KOGYO, LTD. AND USE OF PARTS THAT ARE NOT EQUIVALENT IN PERFOR-
MANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE
EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A
BEARING ON THE OUTCOME OF THE WARRANTY CLAIM.

Summary of Contents for 68002-94310

Page 1: ...marily for cutting construction materials and metal according to the type of cutting wheel installed To minimize the risk of injury to yourself and others always wear hearing protection a dustproof ma...

Page 2: ...hout prior notice and without obligation to make alterations to units previously manufactured 27 MAINTENANCE REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY REPAI...

Page 3: ...t off wheel with cracks distortion or one that is unbalanced Make sure the belt tension is properly adjusted and the wheel guard belt guard and clutch cover are securely assembled Always inspect the f...

Page 4: ...ine is designed built and equipped to conform at the time of initial sale to all applicable regulations of the U S Environmental Protection Agency EPA and that the engine is free of defects in materia...

Page 5: ...to service Check the fuel filler cap regularly during operation to make sure it remains securely tightened This unit must be operated below chest level Operating above chest level may result in serio...

Page 6: ...eel gets hot while cutting Never touch the wheel immediately after cutting You could burn yourself severely While the engine is running never touch high voltage parts such as the spark plug cap and pl...

Page 7: ...Make sure the filter screw is tight Use only 2 cycle mixed fuel GASOLINE TO FUEL OIL RATIO 50 1 ENGINE START PROCEDURES 1 Press PRIMER bulb 4 5 times or until fuel is in the bulb 2 COLD ENGINE Pull th...

Page 8: ...he correct collar then re install the snap ring EC7500 20A EC7500 20 Belt Guard Hex Wrench Outer Flange Bolt Wrench Tighten Loosen WARNING Using the wrong size collar may lead to failure of the wheel...

Page 9: ...dB A Vibration Level Front handle idle rated spindle EC7500 6 96 5 48m sec2 EC7600 10 09 10 49m sec2 Rear handle idle rated spindle EC7500 8 61 14 60m sec2 EC7600 8 93 13 70m sec2 Recommended Cut off...

Page 10: ...ert a hex wrench into the hole in the belt guard to prevent the arbor from turning See Figure 7 EC7500 45 Snap Ring Flange Drive Shaft Collar EC7500 49 20mm Collar 22mm Collar 25 4mm Collar 19 EC7500...

Page 11: ...of 50 1 mixing quantities 1 gallon gasoline to 2 6 oz mixing oil 5 liters gasoline to 100ml mixing oil IMPORTANT Mix only enough fuel for your immedi ate needs If fuel must be stored longer than 30 d...

Page 12: ...s the primer pump a few times repeatedly until the primer pump is almost filled with fuel See Figure 9 3 Push the decompression valve In 4 Pull the choke all the way out choke closed The throttle will...

Page 13: ...to the Troubleshooting Section page 24 If the engine still does not start contact your Shindaiwa dealer Stopping the Engine EC7500 25 Figure 13 Let the engine run at idle speed for 2 3 minutes then t...

Page 14: ...en cutting between 8 500 and 9 500 min 1 rpm While running the engine at full throttle apply slight pressure to the cut off wheel against an object so that engine speed stays at 8 500 9 500 min 1 rpm...

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