Maintenance; General; Maintenance General; Bearings - Grizzly WOOD MILL G9959 Instruction Manual

SECTION 8: MAINTENANCE

General

Your Model G9959/G9977 Wood Mill requires
very little maintenance. A thorough cleaning, now
and again, will increase the machine's durability
and efficiency by removing chips and grime that
can gum up moving parts.
An occasional application of a protective spray
coating will keep the table and other bare metal
parts from rusting and pitting.
REMEMBER: When performing maintenance or
repairs on shop equipment, always disconnect
the machine from its power supply.

Bearings

Most of the bearings are factory-sealed. A sealed
bearing requires no lubrication during its lifetime.
Should a bearing fail, your mill will probably
develop a noticeable rumble, which will increase
when the machine is put under load. If allowed to
get worse, overheating of the journal containing
the worn out bearing could occur. If the worn out
bearing is not replaced, it will eventually seize –
possibly doing damage to other parts of the
machine. Bearings are standard sizes and can be
replaced through Grizzly.
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Lubrication

Table and Apron Lead Screws: Lubricate every
day with SAE 20 oil. A few drops applied on each
side of each nut.
Lead Screw Bearings: Lubricate the bearings
located at the ends of the table and just in front of
the Y axis hand crank. You will find oil ports with
a ball stopper. Lubricate daily. Apply small
amount of SAE 20 using an oil can with a pointed
nozzle to help push in the ball.

Gibs

The Model G9959/G9977 Wood Mill table fea-
tures tapered gibs in the dovetail ways. To adjust
these remove the dust covers on the dovetail
ways to expose the heads of the adjusting
screws. To tighten the table, loosen the screw at
the small end of the tapered gib and tighten the
screw at the large end. Use the same procedure
for the saddle and knee gib adjustments.
G9959/G9977 Wood Mill