Jet JDP20EVST-460-PDF, Operating Instructions And Parts Manual

Page: 10 / 32

10
7.4 Coolant pump
The coolant system should be filled with 2 gallons of
a cutting coolant. Fill by pouring coolant into base of
machine. Add coolant in the same manner when
coolant is low. To drain coolant, remove hex cap
screw located on lower backside of base. Follow all
coolant manufacturer’s instructions for safety,
mixing and disposal.
Make sure drain hose has good, tight connection
into table and that coolant flows into base.
Make sure hose leaving pump and entering ball
valve has good, tight connections.
The flexible nozzle enables user to adjust coolant
for each job. One ball valve controls coolant flow to
nozzle.
7.5 Powerfeed clutch adjustment
This adjustment has been made by the
manufacturer (50 ft./lb. torque) and should not
require immediate attention. If adjustment of
overload clutch becomes necessary after extended
use, remove panel and turn nut (Figure 7-2).
Figure 7-2
8.0 Operating controls
Refer to Figures 8-1 and 8-2.
The front panel area contains all the controls
required to operate the drill press. The A.C. inverter
in the electrical box does not require any
programming, it is pre-programmed by the
manufacturer.
Do not attempt to change inverter
settings. Use only the controls on the front panel. If
you suspect a problem with the inverter or its
settings, contact JET technical service at 1-800-
274-6848.
Main switch (not shown): Located on electrical
box cover. Turns on power to drill press.
Spindle On (A): Activates motor and spindle
rotation.
Figure 8-1: controls
Figure 8-2: controls
Spindle off (B): Stops spindle rotation. (Other
functions such as coolant pump will continue to
operate.)
Reverse spindle (C): If tapping is interrupted, press
this button to reverse tap from workpiece.
E-Stop (D): Emergency stop button shuts down all
drill press functions. To restart drill press, turn E-
stop button clockwise until it disengages.
Coolant pump (E): Starts and stops coolant pump
circulation.
LED Display (F): Shows spindle RPM selected by
speed control knob.
Speed control (G): Selects spindle rotation speed
based upon range set by speed range handle.
Drill mode (H): Selects drill or tap mode. Middle
position is neutral – spindle will not move.