For Machines Mfg. Since 8/09 | S E R V I C E | Model SB1040/SB1041 |
Bevel Gear Backlash
During the life of the machine, the variable speed handwheel may develop extra backlash due to normal wear of the bevel gears. If this lash becomes unacceptable, use this procedure to reduce the backlash.
Leadscrew End Play
If you notice that the leadscrew has end play and the variable speed handwheel has excess backlash after the bevel gear lash has been set, you can adjust the leadscrew collars as an additional measure to reduce the backlash.
To reduce the bevel gear backlash:
1.DISCONNECT BANDSAW FROM POWER!
2.Remove the rear lower access panel, and use a 4mm hex wrench to loosen both bevel gear locking set screws (see Figure 50) just enough to adjust the bevel gears.
! | Bevel Gears |
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Figure 50. Location of bevel gears.
3.Slide the bevel gears closer together and tighten the set screws. If excess backlash still exists, refer to the Leadscrew End Play section on this page, then proceed to Step 4.
Note: Make sure that the set screws remain aligned with the flats on the shaft. If one or both set screws does not return to their original depth in the bevel gear after tightening, the alignment has probably been lost and needs to be corrected.
4.Clean and grease the bevel gears and the leadscrew, then reinstall the access panel.
To adjust the leadscrew collars to reduce backlash:
1.DISCONNECT BANDSAW FROM POWER!
2. Remove the rear lower access panel, and use a 4mm hex wrench to loosen both collar locking set screws just enough to adjust the collars (see Figure 51).
! | Leadscrew | Support Boss |
|
|
Leadscrew Collars w/
Locking Set Screws
Figure 51. Leadscrew adjustment locations.
3.Slide the
Linkage
Leadscrew
Halfnut
Bolts
Figure 52. Linkage location and parts.
4.Reinstall the access panel.
