Rapid-Air SERVO FEED / RAPID MASTER - Manual (Page 15)


The servo motor is flanged mounted
and secured with four socket head
cap screws. The motor removal has
to be done in a sequence as
described below.
1. The manual roll release handle
has to be removed. The inner roll
pin holds the handle to the
shaft. Once this is removed the
handle should slide off the shaft.
2. The belt guard has to be
removed. It is fastened with four
1/4-20 socket head cap screws
on the 100 & 200 servos and five
5/16-18 socket head capscrews
on the 300B.
3. Remove the belt tension then
remove the motor.
4. Install new motor and
reassemble in reverse order
of the previous instructions.
5. When reinstalling the belt, the
tension on the belt should be
1/64” deflection per inch
distance between the center
lines of the pulleys using 1 .5 to
2 lbs. force to cause the
deflection. The best way is to
tension the belt and try running
the servo for a few cycles. If
you get a high vibration on the
belt when the feed stops then
you have to readjust the belt
tension. It will have to have more
or less tension to stop the
vibration of the belt.
MANIFOLD.ASSEMBLY
The manifold assembly was
designed to give the customer
easy access to the components.
The valve for the electric roll release
and if supplied, the anti-backup valve
is mounted on the side of the feed.
The air regulator and pressure
gauge is mounted on the input side
of the feed. All can be easily
replaced if needed.
ROLLER.AND.GEAR.BOX.ASSEMBLY
At this stage of disassembly, all field
maintenance components are exposed
and easily accessible. No further field
service should be necessary on the
roller and gear box assembly unless
the gear train is suspected of a
malfunction. The drive rolls should
be checked for erroneous wear
pattern while they are exposed and
cleaned before reassembly.
MAINTENANCE.PROCEDURES
DAILY
Wipe off feed rolls.
Clean any dirt from servo unit.
Clean any dirt from operators pendant.
WEEKLY
Check wear pattern of rolls.
MONTHLY
Check oil level.
Check cables for cuts or wear.
motor service and fault displaY
Servo.Motor.Service
The Pacific Scientific drive has a list
of internal faults and displays the
number of that fault on its readout
located on the front of the drive.
Rapid-Air now displays the fault on the
keypad display. If a fault occurs the
screen will display the number and
the name of the fault, but there will not
be an explanation accompanying the
fault. This is a tool to help you
to troubleshoot if the servo fails to
perform when commanded.
If a fault was displayed the servo con-
troller will have to be turned off and re-
started to clear the fault. If the fault is
still present when the Pacific Scientific
unit is restarted, the fault may not be
displayed on the keypad screen as the
fault will not let the internal program
restart. The control panel will have to
be opened to view the fault again.
A list of probable faults and some
explanation is included in this section.
If more help is required, then Rapid-Air
will have to be contacted.
Servo.Fault.Display