Buhler 2180 User Manual
Page 223
SECTION 3 - LUBRICATION AND MAINTENANCE
3-35
EVERY 300 HOURS
OPERATION 38
WASH CAB AIR FILTER
Before servicing the filter, switch off the blower and
close all windows and one door. Forcibly close the
other door. The resulting back pressure will dislodge
most of the loose dirt from the underside of the filter.
NOTE: In humid conditions, such as occur on most
early mornings, do not switch on the blower prior to
servicing the filter. Damp particles drawn into the
filter may be difficult to remove without washing.
NOTE: The filter is made of specially treated paper
with a rubber sealing strip bonded to the upper
surface. Do not damage the element during removal.
1. Loosen the filter cover retaining screw, 1.
2. Lower the front of the filter cover, 2.
NOTE: The filter cover is hinged at the back.
3. Remove the filter element, 3.
4. Soak the filter for 15 minutes in warm water
containing a small amount of mild detergent. The
side of the filter with the sealing strip should
remain above the surface of the water.
5. Rinse the filter with running water below 2.8 bar
(40 PSI). Direct the water through the filter in the
opposite direction of the normal air flow.
6. Shake off the excess water. Position the filter with
the seal side up and allow to dry naturally.
IMPORTANT: Do not attempt to dry the filter with
heat or compressed air and do not install until
thoroughly dry as the filter may rupture. It is
recommended that a new filter be installed at this
service and the washed filter put aside for installation
at a subsequent service. Store the spare filter in a dry
place and wrap it to prevent dust contamination or
damage.
7. Clean the filter chamber with a damp, lint-free
cloth.
8. Install the filter with the rubber seal, 4, facing the
cab roof.
9. Close the front of the cover and tighten the
retaining screw.
NOTE: Wash the filter more frequently when
operating in extremely dusty conditions.
IMPORTANT: Replace the filter if pinholes can be
seen when the filter is held up to a strong light, when
the filter is dark and dirty appearing after cleaning,
when the metal housing is bent, or when the seal is
damaged.
62
WARNING
The cab air filter is designed to remove dust from
the air but will not exclude chemical vapor.
Follow the chemical manufacturers directions
regarding protection from dangerous chemicals.