OPERATION
OPERATING PROCEDURES
CLAMPING THE RAIL SAW TO THE RAIL
1.Observe all safety precautions.
2.Make sure the rail clamp assembly is tight to the disconnect pivot (60) by turning the handle (20) to tighten the disconnect pivot bolt.
3.Fully extend the indicator rod located on the clamp and position the rail clamp on the rail so the clamp arms bear on the top and sides of the rail and the bell crank bears under the rail as shown in Figure 2.
LOWERCLAMP
CAPSCREW
INDICATOR ROD
BELL | CLAMP |
CRANK |
|
Figure 2.
4.Move the rail saw along the rail until the indicator is next to the cut as shown in Figure 3.
RAIL
INDICATOR
EDGE OF
CUT LINE
Figure 3.
5.Tighten the bell crank to the rail by turning the clamp screw (75) clockwise.
6.While holding onto the upper link of the rail clamp assembly (near the red knob of the handle), release the detent (129) by turning the knob and then posi- tion the lower link forward (away from the operator) until the detent can be
An optional method is to disengage the detent and adjust the capscrews (see Figure 2) as required.
7.Adjust the wheel guard (87) so that it does not in- terfere with the cutting process and cuttings are di- rected away from the operator.
SAWING THE RAIL
1.Always start the rail saw with the cutting wheel away from the work surface.
2.Start the cut with the wheel rotating.
NOTE:
Do not “bump” the rail. Feed the wheel through the material as fast as possible without allowing the wheel to reduce its speed. Cutting through the material too slowly allows heat expansion and can cause wheel “pinching” in the material. “Pinching” the wheel from heat expansion is one of the most common causes of wheel breakage.
3.Starting at the top of the rail, cut straight down while rocking the handle back and forth. Cut down until near the flange.
4.When near the flange, stop the saw, release the de- tent and move the lower link toward the operator un- til the detent can be
If the detent has been removed in favor of using the capscrews as stops for the lower link, simply move the lower link toward the capscrew closest to the op- erator.
If the wheel is worn such that it will not completely cut through the rail, loosen the clamp lever on the saw, and rotate the saw to allow cutting from the op- posite side. Readjust the lower link as required and finish the cut.
12 ► RS25 User Manual