Checking The Container Level Monitoring System; Checks After Cleaning And Maintenance - Hilti VC 20­U Manual De Instrucciones

7.3 Changing the filter element
1. Disconnect the supply cord plug from the power outlet.
2. Open the filter cover catches.
3. Open the filter cover.
4. Carefully remove the filter element, gripping it at the areas provided in the holder.
5. Clean the sealing surface with a cloth.
6. Fit the new filter element.
7. Close the filter cover by flipping the cover catch forward.
8. Close the filter cover catch.

7.4 Checking the container level monitoring system

1. Engage the wheel brakes so that the vacuum cleaner stands securely.
2. Disconnect the supply cord plug from the power outlet.
3. Open the two catches.
4. Lift the vacuum cleaner top section away from the waste material container and place
it on a level surface.
5. Check the cut-out contacts and clean them with a brush if necessary (if dirty).
6. Check the seal at the vacuum cleaner top section and clean it with a cloth if necessary.
7. Fit the vacuum cleaner top section onto the waste material container and close the
two catches.

7.5 Checks after cleaning and maintenance

1. After cleaning or carrying out maintenance, check that the vacuum cleaner is
assembled correctly and that it functions faultlessly.
2. Test each of the functions.
7.6 Transport
Do not carry the appliance when it is full of waste material.
The appliance may not be lifted directly by crane.
▶ When necessary, remove the power conditioner and any loose accessories from their
holders or attachment points.
▶ Empty the appliance before carrying it to another location.
▶ Do not tip the appliance or transport it lying on its side after using it to pick up liquids.
▶ Use the tapered adapter to connect both ends of the hose together conveniently for
transport.
7.7 Storage
▶ Store the vacuum cleaner in a secure, dry place where it is inaccessible to unauthorized
users.
8 Troubleshooting
If the trouble you are experiencing isn't listed in this table or you are unable to remedy
the problem by yourself, please contact Hilti Service.
Trouble or fault
No suction power or
reduced suction power.
12
5
Possible cause
The dust bag is full.
Action to be taken
▶ Change the paper dust
bag. → page 9
▶ Change the plastic dust
bag. → page 10