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For technical questions, please call 1-800-444-3353.
SKU 67631
this is a constant process, it does not however,
naturally polish the rocks.
The Tumbler uses an abrasive media instead
of sand. It is graded by grain size, from fine
powder sized grains, up to large sized grains.
By changing (usually by weekly intervals) the
grain size, rotating from coarse, medium, to fine,
the rock or gemstone is smoothed much more
quickly than the natural process.
To polish using a Tumbler, add a metallic oxide
compound (not included). The complete pro-
cess for a gemstone or rock to go from rough
to a smooth, polished finish, usually takes from
4-6 weeks.
note:
An
abrasive kit (Sku 30956)
is available
from Harbor Freight Tools. The kit includes 4
oz. of coarse grit abrasive, 4 oz. fine grit, 2 oz.
of pre-polish abrasive and 2 oz. of polish.
opeRating inStRuctionS
Read the entiRe impoRtant
SaFety inFoRmation
section at the beginning of this
manual including all text under
subheadings therein before set up
or use of this product.
tool Set up
to pReVent
SeRiouS injuRy
FRom accidental
opeRation:
turn the power Switch of the tool
to its “oFF” position and unplug
the tool from its electrical outlet
before performing any
inspection, maintenance, or
cleaning procedures.
to pReVent SeRiouS injuRy:
do not opeRate With any
guaRd diSabled, damaged,
oR RemoVed. moving guards
must move freely and close
instantly.
Work piece and Work area Set up
Designate a work area that is applicable
1.
for prolonged Tumbler use. The work
area must not allow access by children
or pets to prevent distraction and injury.
Route the power cord along a safe
2.
route to reach the work area without
creating a tripping hazard or exposing
the power cord to possible damage. The
power cord must reach the work area
with enough extra length to allow free
movement while working.
general operating instructions
caution! always check the tumbler
1.
on a regular basis to make sure the
unit is running properly and is not
over-heating.
Make sure that conditions
around the tumbler are unchanged, and
that the tumbler continues to operate in a
safe location.
Before the first use, and once a month
2.
thereafter, put a few drops of oil on the
Driving Shaft (42) bearings.
Check the V-Belt (40) tension. It must
3.
be kept as loose as possible without
allowing it to slip on the Pulley (36).
Check before each use.
Make sure the exterior of the Rubber
4.
Barrel (12) is clean so that it doesn’t slip
on the rollers. Wipe it with a soapy cloth,
then wipe it clean with a damp cloth,
and dry thoroughly. Do not use liquid
cleaners or solvents.
