Husqvarna MC1805B, MC1809H, MC1809R, MC1813H, MC1813R, MC1805G See, On Air Models, On Electric Models

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Check Before Starting

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Starting The Power Source

Take into account the working conditions from the health and safety point of view.

FUEL: Check the engine maintenance manual.

*Gas Models: Unleaded gasoline is recommended.

•Check that the engine oil level is correct. Because the engine often operates at an angle, check the oil level (with engine horizontal) frequently to ensure that the oil level never falls below the lower mark on the dipstick. 10W30 oil is recommended.

5 Fitting The Blade

(See Fig. 1 and 2)

Always set the Engine Switch (1D) to the "OFF" position before mounting the Blade (2E).

•Set the Engine Switch (1D) to the "OFF" position.

•Raise the machine to a high position [by cranking the Raise/Lower Hand Wheel] or [by loosening and tightening the E-Z Tilt Handle].

•Raise the front half of the Blade Guard (2H).

•Unscrew the Blade Shaft Nut (2A). Remove Outer Flange (2B).

•Fit Diamond Blade (2E) on the Blade Shaft Arbor.

•Install Outer Flange (2B) into the Blade Shaft (2I) making sure that the Locking Pin (2D) passes through the Diamond Blade (2E) and into the Inner Flange (2F).

Note the direction of rotation of the blade. The direction of rotation is shown by an arrow on the Diamond Blade (2E). Make sure that the contact surfaces on the Diamond Blade (2E), Inner & Outer Flanges (2B & 2F) and Blade Arbor are clean.

•Rotate Outer Flange (2B) and the Blade (2E) in the opposite direction of blade rotation to remove backlash.

•Install and tighten Blade Flange Nut using the Blade Shaft Wrench [50 lb.-ft. (68 N-m)] while firmly holding the Diamond Blade (2E).

•Lower front half of Blade Guard (2H).

The Blade Shaft Nut (2A) on the Right Hand side has Left Hand threads.

Always pay extreme care and attention to the preparation of the machine before starting.

Remove all wrenches and tools from the floor and the machine.

Always keep blade guard and transmission guard in place.

On Gasoline Engine Models:

1.Refer to the engine operating manual for proper engine operation.

2.Fill the engine fuel tank and check the engine oil level. Refer to the engine manual for detailed information.

3.Start the engine. Refer to the engine manual for de- tailed information.

4.Let the engine warm up at half throttle. All sawing is done at full throttle. The governor is factory set for the correct engine speed. Do not change the Governor setting – it is factory set for the correct speed.

WARNING: To STOP ENGINE, PUSH the Engine Stop Switch DOWN, located on the handle support of the saw. [Wait for all engine movement to stop.]

On Air Models:

1.Connect the saw to an adequate air supply of 175 CFM @ 100 PSI (120 CFM @ 90 PSI per minute).

2.Check the lubricator (located in the air manifold unit) for the proper oil level. If you need oil, unscrew the plug and fill with an SAE #10 Wt. detergent automotive engine oil. The oil should always be visible in the sight glass. Do not overfill.

3.Open the air valve located in the air manifold unit. The air motor should be free wheeling. The lubricator should be adjusted to feed 4 drops per minute. Monitor the drip rate through the sight-feed dome. Turn the adjustment screw counterclockwise to increase the drip rate and clockwise to decrease it.

On Electric Models:

1.Single phase concrete saws are furnished with the correct approved NEMA configuration plug on the motor pigtail. It will be necessary to provide a matching NEMA configuration receptacle on the extension cord into which the motor is connected. For example: a 5 HP saw set for 230 volts operation is supplied with a NEMA #L6-30P plug on the pigtail. The extension cord will require an L6-30R to make the proper connection.

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