Excel Series Blades, Step | Husqvarna 450 instruction

EXCEL SERIES BLADES

The Excel Series of diamond blades have been designed specifically for the Soff-Cut Ultra Early Entry dry cutting system of green concrete. These specialty blades are designed to increase speed and life while cutting a wide range of aggregates. Choose the correct specification of diamond blade for your area as follows:

Purple Excel Series 1000	XL8-1000	Ultra hard aggregate and non abrasive sand
Green Excel Series 2000	XL8-2000	Hard to ultra hard aggregate and non abrasive sand
Red Excel Series 3000	XL8-3000	Hard aggregate, medium abrasive sand
Orange Excel Series 4000	XL8-4000	Medium hard aggregate, medium abrasive sand
Yellow Excel Series 5000	XL8-5000	Medium hard to soft aggregate, abrasive sand
Black Excel Series 6000	XL8-6000	Soft aggregate, highly abrasive sand

BLADE AND SKID PLATE INSTALLATION

Step 1

With the saw turned off, unfold the handle to its full upright position and tighten the locking knob. With both hands, push down on the handle bar and raise the to its full height and locked position.

Step 2

Remove the blade block cover (A) by turning the two locking knobs counter-clockwise. Insert the blade wrench supplied with the saw on the blade shaft bolt (B) on the end of the blade shaft in the blade block (C). Rotate the blade shaft counter- clockwise with the wrench on the blade shaft bolt (B) while pushing in on the blade shaft locking pin (D) located on the front of the saw frame. The locking pin will drop down in the blade shaft and prevent the shaft from rotating.

Step 3

Remove the blade shaft bolt by continuing to turn the bolt counter-clockwise. Remove the outer arbor washer or flange

(E).

WARNING

Inspect the blade (K) for any damage. Do not use any blade that has cracks, nicks, flaws or a damaged arbor. Make sure the blade is marked with a maximum operat- ing speed greater than 3200 rpm.

Step 4

Match the blade tri-arbor to the blade shaft arbor (F) and install the blade firmly against the rear flange (F). Insure the blade is installed on the tri-arbor correctly. Match the female tri-arbor of the outer washer or flange with the blade shaft and install the blade shaft bolt turning clockwise while holding the locking pin in. Be sure the outer flange is fully seated and firmly holding the diamond blade in position.

Step 5

Install a new skid plate (G) by hooking the front on the front blade block shaft pin. Connect the rear blade block shaft and the rear of the skid plate by installing the locking pin (H).

Step 6

Install the blade cover by turning the two knobs and tighten un- til fully seated against the blade block. Lift the front and rear of the skid plate to insure the blade slides through the skid plate freely.

Step 7

Insure the lexan shields (I & J) move freely up and down. When replacing a worn blade, thoroughly clean the concrete from blade block and blade cover before installing the new blade. Discard the old skid plate and replace it with a new skid plate.

NOTE:

The patented skid plate is the most important part of the Soff-Cut Ultra Early Entry system. If it is bent, twisted or damaged, spalling and raveling of a cut may result. Store skid plates carefully and install them properly. Install a new skid plate with each new blade. Never re-use skid plates.

A K

H F

BC J