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Changing the HEPA Filter

1. The HEPA filter should be checked periodically and replaced when necessary.

2. To remove the HEPA filter, first remove the primary paper filter protector and Dacron filter.

Then remove the four screws under the HEPA filter.

3. Install a new HEPA filter with its open end toward the motor.

4. Replace the four screws, tighten, and replace the Dacron filter and primary paper filter

protector.

Using the Filter Gauge

A manometer filter gauge beside the motor indicates when a filter requires inspection. This

ensures filter integrity while the CVF 125 is in operation, and ensures that the unit is functioning

at optimal efficiency.

When the gauge’s center indicator turns red while the motor is on, first change the plastic

disposal bag, paper collection bag & primary paper filter protector as previously described. If the

indicator remains red or quickly returns to red after changing these filters, change the Dacron

filter protector and HEPA filter element.

Note that a poorly-seated vacuum unit can also cause vacuum loss and trip the indicator, so

always ensure that the vacuum unit is seated properly on the tank.

Maintenance of motor unit

Damage to an armature is often caused by permitting the carbon brushes to become worn to

less than 1/2-inch in length. To prevent this occurrence, inspect the brushes after 500 hours of

operation and frequently thereafter, replacing them when necessary. It is best practice to

replace brushes when they are worn to half their original length. The original length is

approximately 1-1/4”. Failure to properly replace worn brushes will nullify our warranty.

To inspect the brushes, detach the vacuum housing from the tank. Remove the nuts holding the

motor cover. Carefully remove the plastic motor cap by prying the holding clips. Remove the

metal bracket holding each brush, then remove the brush.

No other maintenance of the motor should be attempted during the first year after purchase.

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Tornado 125 User Manual

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