
Manual, Robotic Tool Changer, QC-5 through QC-27
Document #9610-20-2254-09
Pinnacle Park • 1041 Goodworth Drive • Apex, NC 27539 USA • Tel: 919.772.0115 • Fax: 919.772.8259 •
www.ati-ia.com
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6. Troubleshooting and Service Procedures
The following section provides troubleshooting information to help diagnose conditions with the Tool Changer and
service procedures to help resolve these conditions.
WARNING:
Do not perform maintenance or repair on Tool Changer or modules unless the
Tool is safely supported or placed in the tool stand, all energized circuits (e.g. electrical,
air, water, etc.) are turned off, pressurized connections purged and power discharged from
circuits in accordance with the customer’s safety practices and policies. Injury or equipment
damage can occur with Tool not placed and energized circuits on. Place the Tool safely in the
tool stand, turn off and discharge all energized circuits, purge all pressurized connections,
verify all energized circuits are de-energized before performing maintenance or repair on Tool
Changer or modules.
CAUTION:
Thread locker applied to fasteners must not be used more than once. Fasteners
might become loose and cause equipment damage. Always apply new thread locker when
reusing fasteners.
6.1 Troubleshooting
The troubleshooting table is provided to assist in diagnosing issues that may cause the Tool Changer not to
function properly.
Figure 6.2—Troubleshooting
Symptom
Cause
Resolution
The unit does not
lock or unlock.
Insufficient or no air pressure
supply to lock or unlock ports.
Verify proper air pressure and a pneumatic valve is supplied. Refer to
Section 3.9—Lock and Unlock Pneumatic and Valve Requirements
.
Air pressure is trapped in de-
energized Lock/Unlock ports.
Air pressure must be vented to the atmosphere properly. Refer to
Section 3.9—Lock and Unlock Pneumatic and Valve Requirements
.
Pneumatic connections are
loose or damaged.
Refer to the air/valve adapter manual for more information.
Debris is caught between the
Master and Tool plates.
Clean debris from between Master and Tool plates. Verify the
mounting fasteners are secure and do not protrude above the mating
surfaces.
The ball bearings and/or cam
are not moving freely in the
male coupling.
Clean and lubricate as needed to restore smooth operation (Refer to
Section 5.2—Cleaning and Lubrication of the Locking Mechanism and
Alignment Pins
The Master plate and Tool
plate are not within the
specified No-Touch zone when
attempting to lock.
Check that the Tool is properly seated in the tool stand. Refer to
Re-teach the robot to bring the Master plate and Tool plate closer
together prior to attempting to lock.
Insufficient air supply
to tooling or an air
leak.
Rubber bushings are
damaged.
Inspect the rubber bushings for damage. Replace damaged
bushings. Refer to
Section 6.2.3—Rubber Bushing Inspection and
Units Equipped with Electrical Modules
Loss of
Communication.
Debris is in electrical contacts.
Inspect and clean the contacts pins, refer to
Electrical Module Pin Block Inspection and Cleaning
Inspect the V-ring seal for damage. Replace the damaged seal. Refer
to
Section 6.2.5—Optional Electrical Module V-ring Seal Inspection
Units Equipped with and Sensor Interface Plate
Unit is locked but
Lock signal does not
read “on” (true) or
Unit is unlocked but
Unlock signal does
not read “on” (true)
Lock or Unlock sensor/cable is
damaged. Sensor is loose or
not adjusted properly.
Verify cable continuity, replace if necessary
Replace the lock or Unlock sensor assembly as necessary. Refer
to
Section 6.2.1—QC-11 and QC-27 Proximity Sensor Adjustment,
or