6
Vacuum System Operation
and Maintenance Manual
Vacuum Compressor Operation
Hydrostatic Driven Compressor -
Automatic or Standard Transmission
1. Position truck at area to be cleaned.
2. Engage parking brake.
3. Put transmission in the neutral position.
4. Exit cab.
5. Make sure all personnel are clear of the vacuum nozzle.
6. With engine at idle speed, engage stroking lever on hydrostatic pump.
7. Slowly increase speed of blower by turning out the throttle control located on the hose reel to an operating
range of 1800-2500 RPM depending on system used. At the appropriate RPM the high pressure gauge should
read between 5000-6000 RPM on a three stage compressor or 3500-4000 RPM on a two stage compressor.
8. To stop the compressor, turn the throttle cable in or use the electronic throttle switch to decrease the RPM until
engine reaches idle speed.
9. Disengage the stroking lever on the hydrostatic pump.
10. Truck is now ready for transport.
LUBRICATION NOTE: All grease fittings located at the vacuum compressor
MUST
be greased at least
once a day.
