– 8 –
vii. PROPER BLADE USE
DO’S
• Inspect blades daily for cracks or uneven wear.
• Always use appropriate blade for material being cut.
• Inspect arbor shaft for uneven wear before mounting blade.
• Always use blades with the correct arbor shaft size.
• Ensure that blade is mounted in the correct direction.
• Use proper safety equipment when operating the saw.
• Secure the blade to the arbor with a wrench.
• Periodically check the blade for cracks or bond fatigue.
• In addition to the following, always follow wet
recommendations.
• Use appropriate blade for material being cut.
• Inspect segment blades for segment cracking or loss.
• Do not use damaged blades.
• Use proper safety equipment when operating the saw.
DON’TS
• Do not operate the saw without safety guards in position.
• Do not operate the saw with blades larger than 14".
• Do not cut dry with blades marked “Use Wet”.
• Do not exceed manufacturer’s recommended maximum RPM.
• Do not force blade into material. Let blade cut at its own
speed.
• In addition to the following, always follow wet
recommendations.
• Do not make long cuts with dry blades. Allow them
to air cool.
• Do not use the edge or side of blade to cut or grind.
• Do not attempt to cut a radius or curve.
• Do not cut too deep or too fast into the material.
• Do not cut any material not recommended by blade
manufacturer.
viii. CARBON BRUSH REPLACEMENT
The VX141MS Masonry Saw uses a high horsepower low
amperage air cooled brush motor. Replace the carbon
brushes when the motor begins to loose power. Brushes
typically need to be replaced during the life of the saw.
Replace the brushes when over 2/3 of their original length is
used (when the overall length of the brush is less than 7/16”
(11.1 mm). It is normal for the brushes to wear down.
To replace the carbon bursh, perform the following steps:
1. Disconnect the electrical supply.
2. Remove the air filter.
3. Remove the four (4) motor air in-take cover mounting
screws.
See Figure 5A
.
4. Remove the motor air in-take from the motor.
5. Use a coin or wide blade screw driver to remove the
carbon brush cap. Use care not to damage the carbon
brush cap. Inste the cap for damage. If the cap has any
signs of damage, replace.
See Figure 5B
.
6. Remove the carbon brush.
7. Use the compressed air to blow any access carbon build
up out of the motor.
8. Inspect the inside of the motor by looking into the brush
holder for any excessive wear or carbon build-up.
9. Place the new carbon brush.
10. Replace the carbon brush cap and tighten the cap with a
coin or wide blade screw driver. Only snug the cap down.
Over tigthening the cap can cause damage to the cap.
11. Reinstall the motor air in-take cover and re-attach the
four mounting screws. Do not over tighten.
12. Clean the air filter.
13. Re-install the air filter.
Figure 5B
Figure 5A
