BONNET 9L8428 - Caterpillar

Illustration 1 g01899455
Right Side of the Forwarder
Open the access panel.
Remove cab air filter (1) .
Clean the air filter with a maximum of 200 kPa (30 psi) pressure air.
After you clean the air filter, inspect the air filter. If the air filter is damaged or badly contaminated, use a new air filter.
Install the air filter and close the access panel.Reducing Dirt and Dust for the Operator
In order to improve the cab environment, open all air vents and turn the fan speed switch to the highest setting.
Check the fresh air and recirculation filters. Clean the filter or replace the filter, if necessary. Also, clean the surface of the filter seal and the plenum area.
Make sure that there is a good seal around the entire perimeter of both filters, so that air is unable to bypass the filter.
Ensure that all cover plates, floorplates, and seat plates have good seals. Also, ensure that all hardware is installed. This includes drain plugs.
Ensure that implement boots and antenna openings are sealed.
Ensure that the grommets for the dash harnesses are in good condition.
Check and clean all vents and air ducts.Maintaining Cab Pressure
If the cab pressure is low, the following steps can be taken in order to improve pressurization. In order to evaluate the impact of sealing a particular area, you may want to seal the area by a temporary means such as duct tape.
Replace worn door seals or damaged door seals.
Adjust the cab doors.Consult your Caterpillar dealer for more information.