Ryobi BS904 Manuel de l'opérateur télécharger pdf (Page 10)

10 — English

ASSEMBLY

MOUNTING THE SAW TABLE

See Figures 6 - 7, pages 18 - 19.

 Remove the D-nut, washers, and wing screw on the saw

table.

 Standing at the front of the band saw, slide the saw table

past the blade and through the slot moving from the right

side of the saw table to the left.

 Holding the saw table with your left hand while pulling the

angle adjustment knob away from the saw frame, align

the teeth on the saw table bracket into the teeth on the

angle adjustment knob. Release the knob.

 Fit the pins on the frame into the slots of the saw table

bracket.

 Insert the washer on the threaded end of the table lock

lever. Tighten the saw table to the saw frame by turning

the table lock lever clockwise.

 Attach the D-nut, washers, and wing screw to the saw

table.

NOTE: The wing screw goes below the saw table.

SQUARING THE SAW TABLE TO THE BLADE

See Figures 8 - 9, page 19.

 Turn the lock knob counterclockwise to unlock the blade

guide assembly. Turning the blade guide adjustment knob

clockwise, raise the blade guide assembly as far as it will

go. Turn the lock knob clockwise to retighten.

 Place a small combination square on the saw table beside

the blade.

 Loosen the table lock lever and rotate the angle

adjustment knob to tilt the saw table up or down to align

table 90° to blade (0° position). Retighten the table lock

lever.

 Using an adjustable wrench, loosen the jam nut.

 Turn the adjusting bolt until the bolt just touches the saw

housing.

 Check squareness of the saw table to the blade. Make

readjustments if necessary.

 Once squareness is confirmed, retighten the jam nut.

 Set scale indicator to zero and tighten screw with a

phillips screwdriver.

NOTE: Always make a test cut to insure the squareness of

the blade prior to beginning any new project. If not square,

it may be necessary to loosen the screws under the saw

table to make the adjustment (miter slot must be parallel to

the saw blade). Once square, retighten screws.

ADJUSTING BLADE TENSION

See Figures 10 - 11, pages 19 - 20.

 Remove the switch key.

 Before using the band saw, turn the blade tension knob

on the top of the saw clockwise to engage tension.

NOTE: Adjustments of blade tension can be made at

anytime.

 Pluck the back straight edge of the saw blade like a guitar

string while turning the tension knob.

Sound becomes higher pitched as tension increases. Never

increase blade tension so tight as to completely compress

the spring. When completely compressed, the spring can

no longer act as a shock absorber.

Too much tension may cause the blade to break. Thicker

workpieces require higher tension; maximum tension is not

needed for all cuts. Too little tension may cause the blade

to slip on the wheels.

TRACKING THE BLADE

See Figure 11, page 20.

Adjust blade tension properly before making tracking

adjustments. Check that blade guides do not interfer with

the blade. Blade gullet (the deepest part of the blade tooth)

should be in the center of the tire.

To adjust:

 Open front covers by releasing the upper and lower

latches. Watch the blade’s position on the upper tire as,

by hand, you slowly turn the upper wheel clockwise. If

the blade moves away from the center of the tire, the

tracking must be adjusted.

If the blade has moved left or right of center:

 Turn the blade tracking knob (clockwise if blade has

moved left; counterclockwise if blade has moved right)

while turning the wheel by hand until the blade moves

back and rides in the center of the tire.

 Check the position of the blade on the lower tire. The

blade should be completely on the tire (gullet of the blade

teeth in the center). If not, adjust the tracking until the

blade is on both tires.

 Rotate the upper wheel by hand in a clockwise direction

for a few more turns. Make sure the blade stays in the

same location on the tires. Readjust, if necessary, until

blade is tracking properly.

 Close front covers and relatch.

 Turn on saw.

 Verify saw blade is centered on the tire (through the

tracking view window). If not centered, repeat above

steps.

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Ryobi BS904 Manuel de l'opérateur Page 10

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