6
Palmgren Operating Manual & Parts List
80420, 80421, 80422 and 80423
OPERATION (CONTINUED)
•
Models 80422 and 80423 – These models have two speed
motors. Spindle motor speed can be changed by grasping
spindle motor sleeve, pulling downward so that pin is out of
the notch in the body, rotating sleeve to the other notch and
then releasing the sleeve so that pin seats in the notch.
Caution:
Never change speed while spindle motor is in operation.
OPERATING PROCEDURE
Refer to Figures 4, 5 and 12.
•
Bring the spindle motor with tap to the hole to be tapped.
•
Place the tip of the tap on the hole and depress the operating
lever. The tap will self-center and begin cutting. Let the tap arm
guide the tap into the hole.
•
After tapping to the required depth, press the reverse button
while also depressing the operating lever. The tap will reverse
out from the hole.
•
If the tap holder “clicks” or “ratchets”, the tap holder clutch
torsion needs to be adjusted.
To adjust tap holder clutch (see Figure 13):
•
Remove the spring clip from the groove of the tap holder.
•
Turn the notched nut clockwise to increase torsion, counter-
clockwise to decrease torsion.
•
Replace spring clip into the groove of the tap holder.
•
Spindle motor speed can be adjusted by turning the screw
above the reverse button (see Figures 4 and 5).
•
Consult machinery reference books or your machine tool deal-
er for information concerning tap lubricant types, tapping
speeds and tap types.
MAINTENANCE
WARNING:
Make certain that unit is disconnected from air supply
before attempting to service or remove any component.
•
Keep machine and workshop clean. Keep mechanisms clean
and free of foreign particles.
•
Bearings located in arms are permanently lubricated and
require no further lubrication
LUBRICATION UNIT
Refer to Figure 15.
•
Always keep the lubricator oil reservoir full and make sure
lubricator operates at 3-5 drops/minute.
•
FILTER VALVE will open automatically and discharge when air
pressure is less than 10 PSI (0.7 kgf/cm
2
). Filter valve can also be
operated manually – discharge filter daily.
•
LUBRICATOR RESERVOIR has manual drain.
ACCESSORIES
•
Contact your Palmgren distributor for tap holders, angle motor
brackets and drill chuck attachments.
Figure 14
Pin
Notches
Figure 15
Filter Valve
Lubricator Oil Drain
