MacDon M105 Operator's Manual page 245

Air Filter Restriction Indicator
During engine operation, the indicator shows the vacuum in inches of H
filter, the restriction increases.
When indicator gauge (A) shows a restriction of 25 inches
of H O (6.20 kPa) and window (B) shows red, the filter
2
requires servicing.
IMPORTANT:
Over-servicing the filter element increases the risk of dirt
being ingested by the engine, and severely damaging the
engine.
Service air filter ONLY IF indicator (A) reads 25 inches H
(6.20 kPa) and/or indicator (B) shows red.
IMPORTANT:
After servicing filters, press button (C) to reset the gauge
and clear the red indicator from window (B).
Removing Primary Air Filter
1. Open the hood, refer to
Position), page 202.
2. Slightly lift catch (A) at side of end cap (B) and rotate
end cap counterclockwise until it stops.
3. Make sure arrow (A) lines up with UNLOCK symbol on
end cap.
4. Pull off the end cap.
169890
MAINTENANCE AND SERVICING
5.4.1 Opening Hood (Lower
O and kPa. As dirt accumulates in the
2
O
2
Figure 5.66: Air Filter Restriction Indicator
Figure 5.67: Engine Air Cleaner
Figure 5.68: Engine Air Cleaner
231
Revision A