Bevel Gear Backlash; Leadscrew End Play - Grizzly G0806 Owner's Manual

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.
Tools Needed
Hex Wrench 4mm .............................................. 1
Open-End Wrench/Socket 13mm ...................... 1
To reduce the bevel gear backlash:
1. DISCONNECT BANDSAW FROM POWER!
2. Remove the rear lower access panel, and
loosen both bevel gear locking set screws
(see Figure 66) just enough to adjust the
bevel gears.
Figure 66. Location of bevel gears.
3. Slide the bevel gears closer together and
tighten the set screws. If excess backlash still
exists, refer to Leadscrew End Play, 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 origi-
nal 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 re-install the access panel.
-52-
Qty
Bevel Gears

Leadscrew End Play

If you notice that the leadscrew has end play and
the variable-speed handwheel has excess back-
lash after the bevel gear lash has been set, you
can adjust the leadscrew collars as an additional
measure to reduce the backlash.
Tools Needed
Hex Wrench 4mm .............................................. 1
Open-End Wrench/Socket 13mm ...................... 1
To adjust the leadscrew collars:
1.
DISCONNECT BANDSAW FROM POWER!
2.
Remove the rear lower access panel, and
loosen both collar locking set screws just
enough to adjust the collars (see Figure 67).
Leadscrew
Figure 67. Leadscrew adjustment locations.
3. Slide the right-hand leadscrew collar against
the support boss and tighten the set screws. If
excess backlash still exists at the handwheel,
you may have to readjust the bevel gear lash,
replace the leadscrew half nut, or replace
worn bolts or linkage (see Figure 67).
Leadscrew Halfnut
Linkage
Figure 68. Linkage location and parts.
4.
Re-install the access panel.
Model G0806/G0807 (Mfd. Since 12/15)
Qty
Support Boss
Leadscrew Collars w/
Locking Set Screws
Bolts