Case 721G Stage IV, Operator'S Manual

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7 - MAINTENANCE
Primary engine air filter - Replace
Check the engine air filter periodically for dirt and debris build up. Replace the engine primary air filter every 2000
hours or each year, whichever occurs first.
Prior operation:
Keep all non-authorized personnel clear of the area. Park the machine on a firm, level surface in neutral with the
parking brake applied. Lower the bucket/attachment to the ground. Turn off the engine. Install the transport/service
link into the locked position.
NOTE: replace the primary element if the filter warning lamp on the instrument cluster illuminates or the audible alarm
sounds. if the caution warnings continue after the primary filter replacement, replace the secondary filter as well.
NOTE: replace the filters more often if conditions so require.
1. Raise the engine hood to access the engine primary
and secondary air filters. The engine primary air filter
is located on the left-hand side of the machine, inside
the main engine compartment.
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2. Release the four clips that secure the filter cover.
Remove the cover.
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