Section 6: Maintenance; Schedule; Cleaning; Lubrication - Grizzly G2790 Owner's Manual

SEctION 6: MAINtENANcE

Always disconnect power
to the machine before
performing maintenance.
Failure to do this may
result in serious person-
al injury.

Schedule

For optimum performance from your machine,
follow this maintenance schedule and refer to any
specific instructions given in this section.
Daily check:
• loose mounting bolts.
• damaged or worn grinding wheel (page 16).
• Worn or damaged wires.
• any other unsafe condition.
Daily Maintenance:
• Clean the grinder.
• Check/dress the grinding wheel surface
(page 23).

cleaning

Cleaning the model g2790 is relatively easy. use
a vacuum to clean debris and dust from the grind-
er, then protect the unpainted cast iron surfaces
with regular applications of a rust protectant.

Lubrication

the bearings of the motor are factory lubricated
and sealed. simply leave them alone unless they
need replacement.
g2790 universal Knife grinder
Ball Bearings
leadscrew
Figure 26. leadscrew and ball bearings.
raise the table up to access the full length of the
handwheel lead screw, as shown in Figure 26.
use a shop rag and mineral spirits to clean off the
threads of the leadscrew, then brush or wipe on a
thin coat of light machine oil.
apply a few drops of the same oil to the ball bear-
ings under the handwheel, then move the table up
and down to distribute the lubricant.

Wheel Dressing

With use, the surface of the grinding wheel will fill
with metal residue and grit. When this happens,
the wheel needs to be cleaned or "dressed." the
goal of dressing the wheel is to remove the con-
taminants and make the surface even and flat.
the dressing stone included with your grinder can
be used to dress the wheel by carefully holding it
against the spinning surface. however, the safest
and efficient method of dressing the wheel is to
use a diamond dresser (refer to Accessories on
page 21 for options).
to dress the wheel with a diamond dresser:
1.
lower the table so that the grinding wheel is
⁄ " above the table surface,
approximately 1
4
then make sure the top surface of the wheel
is level with the grinder table.
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