Numatic TTB 4055/100 Owner's Instructions Manual page 34

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The TTB Range has been designed with ease of use in mind, this included
easy stripping-down and cleaning. After use, empty waste-water tank using
emptying hose and flush out with clean-water (Fig.28).
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Remove the filter fitted into the separator and flush with clean-water (Fig.31) (Fig.32).
Placed into the top tank is grey filter basket, clean and flush with clean-water (Fig.33) (Fig.34).
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Regular Maintenance
ALWAYS ENSURE THAT THE BATTERY IS DISCONNECTED
PRIOR TO ANY MAINTENANCE OPERATION
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The Bottom (clean-water) tank is attached to the chassis and should only
be removed by a competent service engineer (Fig.35).
Clean by flushing with clean-water if required.
Excess water can be drained using the clear dump hose fitted to the rear
of the machine.
Located under the left hand side is a clean-water filter, ensure the
clean-water tap is turned off before removing this filter (Fig.36).
Clean and flush with clean-water if required.
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Remove the two hoses to disconnect the separator from the
machine (Fig.29).
Lift off the separator. The separator has a sealing-rubber which
should be examined at every clean-down (Fig.30).
Rinse using clean-water.
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