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Setup and Assembly
Any missing parts or damage should be reported
immediately to your JET
damaged tool. Read this instruction manual
thoroughly for operation, maintenance and safety
instructions.
Box contents:
1
Straight Die Grinder
1
Right Angle Die Grinder
2
Wrenches 11mm, 17mm
1
Operation and maintenance manual
1
Product registration card
Operation
The die grinder must be
properly lubricated before operation. See
"Lubrication" section.
Figure 1 (straight model shown)
1.
Loosen collet nut using the two wrenches on
the flats of the collet nut and spindle (Figure
1). Keep wrench on spindle stationary while
turning wrench on collet nut.
2.
Fully insert 1/4-inch shank of grinding
attachment (not included) into collet, and
retighten collet nut securely with the two
wrenches.
3.
Remove protective cap from air inlet (Figure
1). If an in-line oiler is not being used, add 4
or 5 drops of air tool oil (not included) into the
air inlet.
6
505420 JAT-420 Mini Die Grinder Combo Pack
®
distributor. Do not use a
4.
Blow out air line to remove any dirt or
moisture, then connect air supply hose to
tool. Set air pressure to 90 psi.
IMPORTANT: Connecting a quick-change
coupling
directly
recommended, as vibration may cause the
connection to fail. Instead, add a leader hose
and install any quick-change couplings
farther down the line.
5.
Adjust speed by turning regulator screw
beneath
housing,
screwdriver.
6.
Grip tool with both hands and push safety
lever forward to release throttle lever. Gently
press throttle lever. Pressure against throttle
lever determines rotation speed of tool
(clockwise).
7.
Release throttle lever to stop die grinder.
Maintenance
Lubrication
The die grinder should be lubricated daily (or
before each use) with air tool oil through the air
inlet. During continual operation, it should be re-
oiled every 1 to 2 hours. This can be done with an
in-line oiler, or manually. If done manually,
proceed as follows:
1.
Disconnect air hose from tool.
2.
Place 4 or 5 drops of air tool oil into air inlet.
NOTE: Air tool oil not provided; it is available
at most major hardware and tool stores. SAE
#10 oil or sewing machine oil may be used
as a substitute. Do not use detergent oil.
3.
Re-connect air. Run die grinder at low
throttle without load for a few seconds to
distribute the oil throughout tool.
4.
When
finished
disconnect air hose. Wipe off housing with a
dry cloth. Place 4 or 5 drops of air tool oil into
air inlet; re-connect air and run tool for a few
seconds to distribute the oil. Disconnect air.
Periodically apply 1 or 2 drops of air tool oil to
throttle lever and safety lever pivots, and work
lever to distribute the oil.
to
the
tool
is
with
a
flat
blade
operating
die
grinder,
not
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