Ramco RS90 Series Instruction Manual And Illustrated Parts Breakdown - page 4
V-BELT in the SMALLEST pulley groove of the MOTOR PULLEY
(Item 7) and in the LARGEST pulley groove of the REDUCER
PULLEY (Item 5).
10.4 The V-BELT is easily positioned by swing ing the spring loaded
DRIVE MOTOR (Item 1) downward while moving the V-Belt to the
desired position in the step pulleys, and then releasing the spring
loaded DRIVE MOTOR to re-tighten the V Belt.
Section 11: Cutting Speed Chart
The following Chart gives suggested settings for several materials.
For detailed cutting data, check any good machinist handbook and use
the closest speed available.
Material Speed FPM
_____________________________________________
Tool Steel Slow 55 FPM
Stainless Steel
Alloy Steels
Bearing Bronze
____________________________________________
Medium to High Medium 108 FPM
Carbon Steels
Hard Brass or
Bronze
_____________________________________________
Low to Medium Medium 108 FPM
Carbon Steels To To
Fast 153 FPM
_______________________________________________
Soft Brass Fast 153 FPM
Aluminum
Plastics
______________________________________________
Section 12: Saw Blade Removal
12.1 Turn the BLADETENSION ADJUSTER (Item
13) counterclockwise allowing the WHEEL AXLE ASSEMBLY
(Items 12 & 27) to move inward along the GUIDE BLOCKS (Item
28) thereby loosening the saw blade, — permitting it to be removed
from the BLADE WHEELS (Items 30.1 & 30.2)
Section 13: Saw Blade Installation
13.1 Place the appropriate blade onto the BLADE WHEELS (Items
30.1 & 30.2) and in between the GUIDE BEARINGS (Items 20)
being sure that the smooth back edge of the blade is close to the blade
bacKup flange on both blade wheels.
Be sure that the blade teeth are pointed in the right direction, —
toward the motor end of the saw.
13.2 Re-tighten the BLADE TENSION ADJUSTER (Item 13) which
pushes the wheel axle assembly back out along the GUIDE BLOCKS
(Items 28)
thereby tightening the saw blade just enough to track align itself.
13.3 Check to be sure that the blade is properly installed and freely
fitting in the BLADE GUIDES.
13.4 Inch the saw to make a complete revolution of the saw blade, to
check for proper tracking.
13.5 Apply the correct tension to the saw blade,
— that tension which will allow the blade to be deflected 1/8”
sideways from its true position.
13.6 Run the saw again to check for proper blade tracking.
For more extensive tracking adjustment, see Section 11.
Section 14: Saw Blade Tracking Adjustment
Correct saw blade tracking has been factory adjusted. However,
should you find it necessary to re-adjust the tracking of the saw blade,
proceed as follows.
14.1 Slightly loosen the bolts that fasten the WHEEL AXLE (Item 12)
to the ADJUSTMENT BRACKET (Item 27).
14.2 Change the tilt of the WHEEL AXLE just a small amount by
turning the two adjustment bolts in” or “out” as the case may require,
— to track the smooth edge of the saw blade approximately 1/16”
away from the blade backup flange on each BLADE
WHEEL.
Also, the tilt angle of the drive shaft of the GEAR REDUCER (Item
4) can be adjusted in like manner,
— but this adjustment should be made only if the blade will not
otherwise track by the above adjust ments.
Section 15: Saw Blade Grip Adjustment
The BEARING GUIDE assemblies (Items 18) can be adjusted to
accommodate different blade widths. This is accomplished as follows:
15.1 Loosen the blade guide HEX NUTS (Items
15).
15.2 Turn the ECCENTRIC BOLTS (Items 21) until the BLADE
GUIDE BEARINGS (Items 20) lightly grip the saw blade.
15.3 Re-tighten the blade guide HEX NUT while holding the
ECCENTRIC BOLT in its position.
When properly adjusted, the BLADE GUIDE BEARING should be
just barely turriable by hand.
Section 16: Saw Blade Pitch Adjustment
16.1 Loosen the bolts that attach the BLADE GUIDES (Items 18) to
the right hand and the left hand BLADE GUIDE CARRIAGE (Items
16 & 22).
16.2 Rotate the BLADE GUIDES clockwise or counterclockwise to
set the correct pitch of the blade.
If the blade is cutting “in” at the bottom of the stock
3