Extron electronic 3000B - Manual (Page 128)

Exatron 3000B
www.exatron.com 7-3 Chapter 7 Preventive Maintenance
Monthly Maintenance
AFTER 160 HOURS , OR MORE OFTEN AS NEEDED
1. Check the shuttle chain for signs of wear. Broken or worn links will cause the handler to jam and may
cause damage to your devices. Replace chain as necessary.
2. Check all exposed flat ribbon cables for worn insulation. Replace as necessary.
3. Check all solenoid plunger tips and their dowel pins for wear. Replace as necessary.
4. Run the full HANDLER DIAGNOSTICS sequence detailed in Chapter 5 of this manual to detect any
malfunction in all switches, sensors, solenoids, motors, displays, and I/O ports.
5. Check the shuttle chain tension. When approximately five pounds of pressure is applied by hand to
the center of the shuttle chain, it should deflect not more than 1/4 inch. Tighten the tension as needed
by adjusting the red metal return block (part # 5000-370) which holds the right hand sprocket of the
shuttle chain. To do so, loosen the two Allen screws holding the return block in place and slide it
gently to the right until the shuttle chain tension is sufficiently tight. Re-tighten the two Allen screws to
secure the return block at its new location.
6. Clean the shuttle bearing rail (part #5000-368,) with cotton swabs dipped in isopropyl alcohol. Allow
each cleaned area to dry before moving the shuttle back over that part of the bearing rail.
7. Check the shuttle spring for wear:
A. Remove the shuttle car by pulling it out of its Snap-On fitting.
B. Remove the power roller block (part #5000-938) from the shuttle car by removing its
two screws. The stainless steel shuttle spring (part # LC-016B-10-SS) will now be
visible.
C. Remove the spring and the brass insert below the spring.
D. Clean the brass insert with isopropyl alcohol.
E. Check the shuttle spring for "springiness." If it is worn, replace the spring.
8. Inspect the two-chamber filter on the WILKERSON Model #NC00440 air regulator (or equivalent):
AIR REGULATOR MAINTENANCE IS DISCUSSED IN GREATER DETAIL AND A CALL - OUT ILLUSTRATION IS PROVIDED IN
THE "A IR R EGULATOR M AINTENANCE G UIDELINES " SECTION LATER IN THIS CHAPTER .
A. Remove the charcoal filter air cleaning chamber and inspect. If the black filter
element is full of particles which have been extracted from the air supply, replace this
filter.
B. Remove the air drying chamber and pour out any liquid which has been extracted
from the air supply.