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FAN BELT REMOVAL AND REPLACEMENT

The Ecogrinder incorporates two drive fan belts (an inner and an outer) to power the fan

assembly. If the unit is not removing the dust, you will need to inspect the fan belts, fan

assembly,anddustbagtondthecauseoftheproblem.

NOTE:ThisEcogrindermakesuseofaatfanbeltandpulleysystemthatisself-centering

due to the barrel shape of the pulleys. If the fan belt is worn or dirty it can rotate off

the pulleys, this will be indicated by a loss of suction.

TESTING THE UNIT FOR FLOW

1. A simple test can be done to see if the fan unit is working correctly.

2. Disconnectthehoseandback-owpreventerfromthetoolandstandthegrinderup

so it is resting on the protective housing and the top handle. Point the fan exhaust in

a direction away from you or anyone else.

3. Turn the unit on and hold a piece of paper over the exhaust port. Paper should extend

and stand up straight when unit is turned on.

4. Ifthetestindicatesaweakornoowcondition,thefanbelts,pulleys,andfanunitwill

needtobecheckedtondthecauseoftheproblem.

Figure-33

Figure-34

Fan Unit Test

OFF ON

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Alpha ECG-125 Bedienerhandbuch Seite 30