MacDon M155, Operator'S Manual

Page: 355 / 510

MAINTENANCE AND SERVICING
Air Filter Restriction Indicator
During engine operation, the indicator shows the vacuum in inches of H
2
O and kPa. As dirt accumulates in the
fi lter, the restriction increases.
When the indicator gauge reaches the CHANGE FILTER
mark (A), 25 inches of H
2
O (6.20 kPa), a warning tone will
sound and the cab display module (CDM) will indicate the
fi lter requires servicing.
IMPORTANT:
Over-servicing the fi lter element increases the risk
of dirt being ingested by the engine, causing severe
damage.
Service air fi lter ONLY IF indicator reaches the CHANGE
FILTER mark (A) or 2.5 inches H
2
O (6.20 kPa).
IMPORTANT:
After servicing fi lters, press the RESET button on the
end of the indicator (B).
Figure 5.60: Air Filter Restriction Indicator
Removing Primary Air Filter
1. Open the hood, refer to
5.2.1 Opening Hood (Lower
Position), page 306
.
2. Open the maintenance platform on right cab-forward
side. Refer to
5.3.1 Opening Platforms (Standard
Position), page 309
.
3. Slightly lift catch (A) at side of end cap (B) and rotate
end cap counterclockwise until it stops.
Figure 5.61: Engine Air Cleaner
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339
Revision A