6
3-3. Lubrication
Install an oiler between the compressor and the tool.
Use the machine oil ISO VG-10. Failure to lubricate
as required may result in damage to the tool. Use of
oil that is too thick will reduce the performance of the
tool.
3-4. Short hose fittings
Do not fix a coupling directly on the tool. Make sure
that after a short hose is fixed with the Hose Nipple
R3/8X3/8 including in the accessories, then the
coupling be attached. If the coupling is directly fixed,
it would be damaged by the vibration and the life
would be shortened.
4. HOW TO OPERATE THE TOOL
WARNING
●
Do not operate tool at no load. Do not operate the
tool at no load: It may not only cause damage to the
tool but also may cause needles to fracture and fly
out, possibly resulting in unexpected accident.
4-1. Start and Stop
(1) Check that a Throttle Lever is turned off and
connecting the tool to the hose Ieading to air
supply Iine.
(2) Hold the tool and turn on the Throttle Lever to
Start.
(3) When the Throttle Lever is released, it will
automatically turn off.
Throttle Lever
JC-16, JEX-24,
JEX-28, JEX-2800A
Throttle Lever
AJC-16, JT-20, JEX-20
Fig. 2
Fig. 3
4-2. Operation
You do not have to press the Needles against the
workpiece with much force. Keep the Needle in
contact with the work surface and apply force as
if you were just trying to maintain solid contact
between the Needles and workpiece. Too much
force, if applied, could result in damage to the
Needles, such as bending and / or breakage,
or even damage to the tool itself. The Needles
will closely follow any kind of configurations the
workpjece surfaces may have, making it possible to
get the work done with ease, speed and accuracy.
Fig. 4
4-3. Needle for JET CHISEL
Three types of Needles are available for JET
CHISEL: i.e. 2, 3 and 4mm outer diameter (O.D.).
The table below shows the Needles that are
compatible with each model. Use these needles in
accordance with your applications. (Note: represents
diameter.)
Model
O.D.2
O.D.3
O.D.4
AJC-16
7pcs
3pcs
-
JC-16
29pcs
-
-
JT-20
29pcs
12pcs
-
JEX-20
29pcs
12pcs
-
JEX-24
53pcs
23pcs
-
JEX-28
66pcs
28pcs
14pcs
JEX-2800A
66pcs
28pcs
14pcs
Caution:
The Needle Supporter that matches with the
needle diameter is additionally required.
5. CHANGING NEEDLES
WARNING
Before changing Needles, turn off the Throttle Lever
and disconnect the air supply line.
5-1. JC-16, JT-20, JEX-20, AJC-16
(1) Remove the Lock Band from the groove.
(2) Loosen the Lock Ring and remove.
JT-20, JEX-20, AJC-16
Fig.5
(3) Take out the Needle Supporter by pulling out the
Needles.
Fig. 6
(4) Extract the Needles. Whenever the Needles
are damaged during operation, they must be
changed.
(5) After changing Needles, assemble in the reverse
manner of disassembly.
Caution
Changing the Needle of AJC-16
The Needle is consumable parts, however, since
AJC -16 consists of 3 pieces of Needles, even if one
piece has been damaged, the Needle should be
changed or replenished.
In this case set them after making the lengths of
three Needles almost even through using grinders
etc.
5-2. JEX-24
(1) Unfasten the Hex. Socket Head Cap Screw 8x35
using the Hex. Wrench Key 6 and pull out the
Needle Guide.
Needle
Fig. 7
(2) Loosen the Lock Ring and remove.
(3) Take out the Needle Supporter by pulling out the
Needles.
JET CHISEL.indd 6
11.2.18 2:12:28 PM
