Specifications

27
MACHINE OPERATION TROUBLESHOOTING
Error Messages:
The SV Series Machines have built in error
messages that will appear on display screen to alert
operator when machine has stopped due to an error,
problem, or incorrect setup.
Problems / Solutions:
WARNING
Some troubleshooting procedures require
examining parts inside machine enclosure.
ALWAYS have power OFF when guards are open.
If problem cannot be diagnosed by Power Off
inspection, then consult a Sunnen Service
Technician.
PROBLEM: Control system gives a message
indicating that the grease system is out of grease,
but grease can still be seen in the reservoir.
SOLUTIONS:
- An air pocket in the grease system can cause this
fault. Use the following procedure to bleed the air
from the system:
1. Disconnect all grease lines from their grease
injectors.
2. Remove all the grease injectors from the
manifold.
3. In the Diagnostics section of the control
software, set the grease system to cycle 100 times.
4. Watch the open ports in the manifold. As soon
as grease comes out an open port, then install that
injector in the open port.
NOTE: If you cannot hear the grease pump cycling,
then either the pump is defective or there is a loose
electrical connection.
5. When all injectors are installed begin looking for
grease to come out of the injectors. As soon as
grease can be seen coming out of an injector then
connect a grease line to that injector.
6. After all grease lines have been reconnected,
allow the system to finishing the 100 cycles. If no
faults occur in those 100 cycles then the air has
been successfully bled out of the system.
PROBLEM: Routine inspection of lubrication
system shows that grease is not coming out of one
or more grease lines.
SOLUTIONS:
- Remove the grease lines from the tops of the
grease injectors. Under the Diagnostics section of
the software, set the lube system to cycle 50 times.
1. If grease is seen coming out of the injectors,
then the problem is with the grease line. It is either
clogged or has a leak. In either case it should be
replaced.
2. If grease is not seen coming out of one or more
injector, then remove the injector(s) from the
manifold. Is grease coming out of the manifold
port(s) as the system continues to cycle? If not then
proceed to step 5.
3. If grease is coming out of the port(s) then
reinstall the injector(s). Only reinstall an injector
into a port where grease is present. If air is trapped
below the injector it will not work properly.
4. If grease does not come out of the reinstalled
injector, then the injector is not working properly.
An injector may be disassembled and cleaned to get
it to resume working, if that does not work then the
injector is defective and should be replaced.
5. If grease is not seen coming out of the port(s)
when the injectors are removed then air must be
bled from the grease pump. Open the air bleed port
just below the grease reservoir and continue cycling
the system until grease can be seen coming out of
the port. If this does not happen then the pump is
defective.
6. After taking the necessary corrective action and
reassembling, but before reattaching the grease lines
to the ball screw and ball spline, cycle the lube
system 50 times and verify that grease is coming
out of the lines.