Maintenance
Blade Guides
5
5-2
50HD07doc072310
Maintenance
5.2
Blade Guides
WARNING!
Before performing service near moving parts
such as blades, pulleys, motors, belts and chains, first turn
the key switch to the OFF (#0) position and remove the key.
If the key is turned on and moving parts activated, serious
injury may result.
1.
Check the rollers for performance and wear every blade change. Make sure the rollers
are clean and spinning freely. If not, replace them. Replace any rollers which have worn
smooth or have become cone shaped.
Blade Guides equipped with High-Performance Roller/Blocks Only:
2.
Inspect the blocks at every blade change for damage or wear. If the block housing is bent
or damaged, replace the block assembly. Also, replace the block assemblies before the
blocks are worn to a point the blade may contact the lower step or housing.
3.
Check the guide blocks are properly spaced from the blade every 25 hours of operation.
Use the provided shim or a feeler gauge to check the blocks are adjusted .008” - .010”
from the blade.
As the blocks wear, the front inside corner will wear more than the body of the block.
When the corner wears far enough, sawing performance will be affected even if the body
of the block is adjusted properly to the blade. At this point, the block should be replaced.
If you have access to the appropriate equipment, you can grind or mill the blocks to a new
flat surface and reuse them. It is recommended you develop a routine schedule for
replacing the blade guide blocks based on your sawing conditions and experience.
25
