Sharpening Chisel And Bit - Jet Tools 719A Mode D'emploi

Open the chuck access doors on both
sides of the head.
Insert the chisel bushing (3, Fig5) with
the hole facing forward into the head.
Insert chisel and bit together.
Tighten the screw (2, Fig5) just
enough to hold the chisel (4, Fig5) in
place.
Fig 5
NOTE:
The slot in the chisel should face to
the right or left side only. The opening
will allow chips to escape during
operation.
Push the chisel up as far as possible
into the head. Then lower the chisel
1,5 to 4mm, depending on the type of
wood being worked. Tighten the screw
to hold the chisel in place.
Push the bit up through the chisel
opening as far as it will go. Lock the
drill bit in place with the chuck key.
Loosen the screw and push the chisel
up against the bushing and tighten the
screw. This should provide the proper
distance between the points of the
chisel and the bit.
NOTE: The chisel should be adjusted
parallel. Use the workpiece as a
gauge (Fig 6).
Fig 6
Close the chuck access doors before
starting the machine.
Using bits with shorter shanks:
It will be necessary to attach the
spindle extension.
Place the supplied 32mm open
spanner on the chuck release nut and
use the chuck key to hold the chuck.
Force off the chuck with the chuck
release nut.
Attach the spindle extension to the
chuck and reinstall.

7.2 Sharpening chisel and bit

The chisel and bit should be kept
sharp for best performance.
Sharpen the bit by using a small file,
following the original shape of the bit.
File the inside edge of the spur (A,
Fig7), the sides of the centre point (B,
Fig7) and the cutting edge inwards
toward the flute of the bit (C, Fig7)
Fig 7
Do not file the outside edges of the
spur as this will affect the diameter of
the bit.
Sharpen the chisel on the cutting edge
inside only.
6
8. Maintenance and inspection
General notes:
Maintenance, cleaning and repair
work may only be carried out after
the machine is protected against
accidental starting by pulling the
mains plug.
The mortise requires only minor
maintenance, such as lubrication,
routine adjustments and sharpening of
chisel and bit.
Clean the machine regularly.
Defective safety devices must be
replaced immediately.
Repair and maintenance work on the
electrical system may only be carried
out by a qualified electrician.
9. Trouble shooting
Motor doesn't start
*No electricity-
check mains and fuse.
*Defective switch, motor or cord-
consult an electrician.
Chisel clogged with chips
*Clearance chisel to bit not enough-
set bit 1,5 to 4mm below chisel.
*chips cannot clear the chisel-
observe chisel slot and working order.
Burned Wood
*Feed too slow-
increase feedrate.
*Worn chisel or bit-
sharpen chisel and bit.
10. Available accessories
Stock number 6285526
6,35 mm chisel and bit
Stock number 6285527
8 mm chisel and bit
Stock number 6285528
9,5 mm chisel and bit
Stock number 6285529
12,7 mm chisel and bit
Stock number 6292447
15,87 mm chisel and bit
Stock number 6292448
19 mm chisel and bit