6
JCT-5670 Pneumatic Drill
Setup and Assembly
Any missing parts or damage should be reported
immediately to your JET
®
distributor. Do not use a
damaged tool. Read this instruction manual
thoroughly for operation, maintenance and safety
instructions.
Box contents:
1 Drill
1 Side
handle
1 Screw
1 Chuck
key
1/2in.
1
Operation and parts manual
1 Warranty
card
Install side handle on either side of drill for left or
right hand operation. Install screw on opposite
side to protect the threads. See Figure 1.
Figure 1
Operation
The drill must be properly
lubricated before operation. See “Lubrication”
section.
1.
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.
2. 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 to the tool is not
recommended, as vibration may cause the
connection to fail. Instead, add a leader hose
and install any quick-change couplings
farther down the line.
3.
Rotate chuck counterclockwise by hand to
open chuck jaws.
4. Insert bit (not provided) into chuck, and
center it between the jaws. Tighten chuck by
hand while aligning bit.
Note: Insert only the shank of a twist drill bit;
its flutes should remain free of the chuck
jaws.
5.
Insert chuck key into one of the holes on the
chuck, so it meshes with teeth on drill chuck.
Rotate key clockwise to fully tighten chuck.
6.
Place bit against work item and gently press
trigger. Speed is variable, determined by
pressure against trigger. Begin at slow
speed and gradually increase as you drill.
7.
Release trigger to stop drill.
Important:
DO NOT raise air pressure
above maximum rating for this drill. If tool is
not accomplishing task at maximum air
pressure and flow, use a larger tool or
different means to achieve task.
User-maintenance
Lubrication
The drill 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 drill at low throttle
without load for a few seconds to distribute
the oil throughout tool.
