BendPak 1302BA-302, Руководство по эксплуатации и обслуживанию

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5. With the jumper board in place, movement of the
radius die will be controlled by the twin foot switches
only. There will be no provision for depth-of-bend
readings.
IMPORTANT NOTE!
The top micro switch will be inactive with the
jumper board in place. NEVER retract the top
cylinder so that it is in a “bottomed out” condition.
OPERATING THE MACHINE MANUALLY USING
THE ELECTRIC SOLENOID VALVE
All “BA” and “BAS” models incorporate an electronic
soIenoid valve that controls operation of the top cylinder
for all bending functions. The solenoid valve is located to
the rear of the machine, just below the oil filter.
(See figure 1-C)
The solenoid valve is an electric spool valve that uses
electric-magnets (coils) to activate the valve spool. You
can use the manual “buttons” on the end of each coil to
temporarily activate the top cylinder should a malfunction
occur with the automatic controls or the solenoid valve
itself. (See figure 2-A)
The manual buttons control the top cylinder as follows;
To advance the radius die - Press the right button
inward using an insulated tool or non-conducting rod.
To retract the radius die - Press the left button inward
using an insulated tool or non-conducting rod.
NOTE:
The manual control function of the solenoid valve
should effectively advance or retract the radius
die under all conditions. The manual button
should be pressed firmly to activate.
SOLENOID VALVE
MAINTENANCE
Certain symptoms and suggested repair procedures are
explained below.
t
The valve Inadvertently “sticks” causing the top
cylinder to uncontrollably advance or retract.
Operating the valve manually will often dislodge foreign
particles that may have become trapped in the valve
spool. If this does not free the valve, remove the solenoid
coil covers and make sure there is no foreign matter that
could interfere with the moving parts. Clean and
reassemble.
t
The valve spool Is free but still does not activate
with the control board or twin foot switches. Remove
the solenoid valve coils and check for an open or shorted
circuit. Check all electrical connections.
t
The valve spool Is free and the coils are not open
or shorted, but It still does not activate with the
control board or twin foot switches. Check the
incoming voltage to the valve. Proper incoming voltage
should be between 208 - 230 volts A.C.
t
There Is no voltage to the solenoid valve or the
voltage Is too low. Check the fuse on the control board
or see electrical diagrams on pages 4.
ELECTRICAL REPAIR
42 Bender Operation Manual
Figure 1-C
Figure 2-A
WARNING!
Electrical equipment should be serviced by
certified electrician’s only. This manual should
not be viewed as sufficient instructions for those
who are not otherwise qualified to operate,
service or maintain the equipment discussed.
Although reasonable care has been taken to
provide accurate and authoritative information in
this manual, no responsibility is assumed by the
manufacturer for any consequences arising out
of the use of this material.
SERVICE NOTE:
WHEN RETURNING THE DIGITAL CONTROL BOARD
FOR REPAIR, REMEMBER TO INCLUDE ALL
COMPONENTS: FRONT DISPLAY PANEL, MAIN
CIRCUIT PANEL AND WIRE RIBBON.