Welch Allyn Multi-Operatory Air Abrasion Accessory - User Manual - Manual (Page 15)

990229 REV C 15
5. Preventive Maintenance and Troubleshooting
Preventive Maintenance
WARNING: Always disconnect power from the Multi-Operatory Accessory and
Mach 5/5+ prior to performing any maintenance.
The Kreativ Multi-Operatory Accessory has been designed to be trouble-free and
easy to use. Standard cleaning procedures will keep your accessory looking new for
years to come. Periodic inspection of the power supply and cord is prudent. If any of
these parts appear worn, contact your authorized Welch Allyn / Kreativ service
representative for replacement parts.
To replace the pinch tubes:
1. Turn off the Mach 5/5+.
2. Disconnect power from the Multi-Operatory Accessory by either unplugging the
power supply from the main power source or disconnecting the power plug from
the bottom of the Multi-Operatory Accessory.
3. Remove the 4 thumbscrews securing the two pinch tubes on the top of the Multi-
Operatory Accessory and remove the black pinch tube top blocks.
4. Pulling up on the manifold, remove and discard the pinch tubes by pulling from the
manifold fitting. Remove the air hose fitting from the other end of the pinch tubes
by pulling the pinch tube from the fitting.
5. Install new pinch tubes by inserting over the fittings on the manifold and air tubes.
6. Replace the assembled pinch tubes into the grooves in the bottom pinch tube
block, ensuring proper location of the fitting flanges in the grooves provided in the
pinch tube block bottoms.
7. Place the pinch tube top blocks over the pinch tube assemblies, and push
together, ensuring proper alignment of all the components.
Chapter
5