Maintenance
Blade Guides
3
3-2 HDSdoc091108 Maintenance
3.2 Blade Guides
1. Check the rollers for performance and wear every blade change. Make sure the rollers are clean
and spinning freely. If not, rebuild them. Replace any rollers which have worn smooth or have
become cone shaped. See The LT40 Series DH Parts manual for blade guide rebuild kits and
complete roller assemblies.
Steel Blade Guide Blocks
2. Inspect the blocks at every blade change for damage or wear. If the block is bent or damaged,
replace the block assembly.
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.
3. Check the inserts are properly spaced from the bottom of the blade every 25 hours of operation.
As the rollers wear, the gap between the blade and inserts will become larger. Use the provided
shim or a feeler gauge to check the inserts are adjusted 0,2 - 0,25 mm from the blade.
See Figure 3-1. To adjust the disks up, loosen the bottom guide disk mounting bolt and clamp
bolt. Use the provided adjustment tool. to raise bottom disk Retighten the bottom disk mounting
bolt and clamp bolt.See Section:
RYS. 3-0
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