106 MAX Operation & Service Manual106 Section 6: Maintenance & Service MAX Operation & Service Manual
Adjusting the Duster Clutch
Tools needed: 3/16” Allen wrench, 3/8” open end wrench
CAUTION! To prevent damage to duster gear motor, DO NOT force motor to
turn by rotating shaft or chain.
1. Lower the duster cloth using the “duster unwind” button in the Tablet diagnostics for cleaning,
then wind the cloth up, using the “duster wind” button. The motor should lift the duster contact
roller to its raised position and then advance ~ 1/2” of new cloth.
2. Once the motor quits turning, the clutch on the duster cloth supply roll and duster motor on the
duster cloth take-up roller should maintain their position. Press down rmly on the raised duster
contact roller with the ngertips of both hands to check for proper adjustment of the duster
clutch.
3. If the duster does not remain in the raised position after trying to press down, the duster clutch
needs to be adjusted. To increase torque, use a 3/16” wrench and loosen the collar bolt.
4. Hold the supply roll of cloth to keep the threaded inner drive post of the clutch stationary during
this adjustment. Use the 3/16” Allen wrench as a lever to rotate the outer clutch collar clockwise
in steps of ¼ turn (90 degrees). Then retighten the collar bolt with the 3/16” Allen wrench to
hold this setting.
5. Next, check to make sure that the duster clutch is not tightened too tightly to advance new
duster cloth. Lower the duster cloth using the “duster unwind” button in the Tablet diagnostics
for cleaning. Then wind the duster cloth using the “duster wind” button. The load on the duster
cloth motor should increase and turn more slowly when the supply roll of cloth turns (causing
the duster clutch to slip). At least ¼” of new cloth should be unrolled from the supply roll.
6. If the duster cloth motor stalls before it advances at least ¼” of new cloth OR if it reverses
direction or “back lashes” after the duster cloth motor stops turning, then there is too much
torque on the duster clutch. To decrease torque, use a 3/16” Allen wrench to loosen the collar
bolt.
7. Hold the supply roll of cloth to keep the threaded inner drive post of the clutch stationary during
this adjustment. Use the 3/16” Allen wrench as a lever to rotate the outer clutch collar counter-
clockwise in steps of 1/8 turn (45 degrees). Then retighten the collar bolt with the 3/16” Allen
wrench to hold this setting.
8. Repeat steps 1-7 to verify the proper duster clutch adjustment.
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