Corrective Maintenance - Pace MBT250 Operation & Maintenance Manual

Corrective Maintenance

VisiFilter Element Replacement
Follow the procedure listed below to replace the VisiFilter element when it becomes clogged or discolored.
1. Disconnect the handpiece air hose by gently turning and pulling the coupled Fittings.
2. Disconnect the Visifilter and hose assembly from the Power Source by gently turning and pulling the
male Fitting inserted into the AUTO SNAP-VAC Port.
3. Disconnect VisiFilter from both attached 1 inch air hoses by gently turning and pulling the VisiFilter
while holding each of the hoses.
4. Separate the 2 plastic housing halves of the VisiFilter in the following manner.
a) Grasp the VisiFilter in the palm of the hand with the Male Nib (air hose connection) marked "FLOW
IN" facing you.
b) Pull against one of the Wing Tabs while pulling on the Male Nib with the free hand to open the
interconnection of the plastic housings at that Wing Tab.
c) Pull against the second Wing Tab while pulling on the Male Nib to open the remaining
interconnection and separate the plastic housings.
5. Remove the old or discolored Element and discard.
6. Insert the replacement VisiFilter Element into the housing marked "FLOW IN". Center the Element in
the housing well.
7. Squeeze the 2 plastic housing halves together using 4
plastic Bumps on the housing marked "FLOW OUT"
as pressure points. The 2 plastic housings will snap
together and lock the VisiFilter Element in position.
8. Reconnect the 1 inch air hoses (removed in step 3) to
the VisiFilter.
9. Attach VisiFilter and hose assembly to Power Source
by inserting male Fitting into the SNAP-VAC Port.
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Figure 25. VisiFilter Element Replacement
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