This series includes: 7200CR, 7316C, 7327C, 7400C, 7600C, 7700C, and 70PTC.

1. What kind of maintenance does my West·Bond machine require?
2. Are there any special precautions I should take when moving my West·Bond equipment?
3. Why does the tool "jump" when I come down to bond?
4. Why does my machine display an ULTRASONIC ERROR message?
5. Why is my K~Sine microscope fluorescent illuminator not working?
6. Load Cell Calibration?

Answer: Virtually none. West·Bond equipment is designed to provide many years of hassle free operation. However, general cleanliness of the equipment is promoted and the following suggested actions will effect this end.

1. Wipe down the exterior of the machine with a soft, damp cloth. Chemical cleaners (such as Windex or 409) can be used on the painted surfaces only.
2. Unplug the machine from the wall and tilt back the cover. Inspect for any dust or debris (such as gold or aluminum wire) and remove using a small vacuum or light air pressure. Remove the printed circuit boards, inspecting both the contacts on the board and the edge connectors mounted on the machine base. Clean the board contacts with a lint free cloth and rubbing alcohol. Clean the edge connectors with a small vacuum or light air pressure.
3. Locate the ball joint assembly. This is a small ball covered with grease that makes the connection between the tooling plate and the manipulator arm. Ensure this is well lubricated. If necessary apply a small amount of light grease to the ball. Replace this assembly if the ball looks cratered or worn.

Answer: Linear Bearings - Turn the machine power off and, with your right hand, firmly grasp the manipulator arm. With you thumb and forefinger of your left hand, gently grab the head assembly and move back and forth (left to right). There should be no slop between the movement of the head and the movement of the manipulator. If play is detected, contact your local representative or West·Bond technical support and schedule a service appointment.

Answer: Bad Inverter - Verify that the 12 volt power supply is still operational and supplying the correct voltage. For specific 12V test points on your machine refer to the system power schematic located in the users manual, included with your machine. Next turn the machine off and unplug the blue and black wires, running from the inverter module, at their respective connectors. Hook up a voltmeter, taking care not to let the wires touch each other or short to ground- when the power is turned on, an AC voltage of 495 should be seen across the two wires. If this voltage is indeed seen, turn the power off and plug in a known good illuminator. Reconnect the blue and black inverter wires in such a way that a voltmeter can still be used to measure their potential difference. When the power is turned back on, 26VAC should been seen across the two wires once the 495VAC startup voltage has cycled and successfully turned on the fluorescent bulbs. If this cycling from 495VAC to 26VAC is not seen, then the inverter assembly needs to be replaced.

Light Bulbs - The light bulbs may have burned out. Either plug the light into a machine with a known good illuminator inverter, or try a known good illuminator on the afflicted machine. If the bulbs are indeed the problem, call West·Bond and order replacements.

Answer: Turn machine power on and place the machine in Calibrate mode. Remove the cover on the left side of the machine. Locate the P/N 8840 PCB board toward the rear of the machine. Lift the head assembly off of the load cell contact point. Adjust RT1 on the 8840 board until the display reads 0. Gently set the head down against the load cell and adjust the tare weight (spring force nut located just above the tool head) to 20 grams. Using the provided weight set, place a 50-gram weight directly above the hook on the tooling head. Adjust RT2 (offset) on the 8840 board until the display reads 70. Remove the weight and verify the load cell calibration by checking to see that the display now reads 20 grams. Double check using a 20-gram weight set atop the tooling head- the display should read 40 grams. Adjust RT2 accordingly, being sure to check the calibration after every adjustment. This is a delicate calibration procedure that requires a bit of finesse on the operator’s part.