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Periodic Checks
Checks
Check filter for wear, replace dirt saturated filters that do not respond to
normal cleaning
Inspect gasket seals and replace those which have begun to leak
Examine carbon motor brushes and commutator
Servicing The Filter
The filter is accessed by lifting the head assembly off the tank. The Polyester filter assembly is easily removed by simply
lifting the filter basket out of the tank. The cartridge filters they are removed very easily. First remove the filter retainer by
turning the black knob 90 degrees counter-clockwise. The cartridge filter will then slide off of the support assembly.
• Be sure to frequently clean the filters.
• Allow filters to thoroughly air dry after washing them before returning them to the machine.
• Worn filters can affect vacuum performance. Replace the filters when they become worn out and normal cleaning
will not restore vacuum performance.
Servicing The Vac Motor
Motor Replacement:
1. Disconnect power cord from power source.
2. To access the vac motor, remove the screws that attach the main cover to the head assembly and set thecover to
one side.
3. Remove the screws that attach the inner cover to the head assembly and set aside.
4. Remove the carbon brush assembly by removing the 2 screws that attach it to the vac motor.
5. Slide off the carbon brush connector from the motor terminal.
6. Inspect armature commuator. If it is extremely pitted, grooved or not concentric then the motor will need to be
replaced or sent to a qualified service center.
7. Reverse steps 6 through 4 to install new carbon brush and housing.
8. Repeat steps 4 through 7 for the other carbon brush.
9. Reverse steps 3 and 2 for re-assembly.
10. Test for proper operation.
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Parts & Operations
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Manual DB Series
Daily
Weekly
Operations
Operations
Six Monthly
Operations
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