Maintenance Operating & Maintenance Manual
93
Air Filter Elements
The air filter should be inspected regularly (refer to the SERVICE/MAINTENANCE CHART)
and the element replaced when the restriction indicator shows red or every 6 Months (500
hours), whichever comes first. The dust collector box(es) should be cleaned daily (more
frequently in dusty operating conditions) and not allowed to become more than half full.
Removal
Never remove and replace element(s) when the machine is running.
Clean the exterior of the filter housing and remove the filter element by releasing the nut.
Inspection
Check for cracks, holes or any other damage to the element by holding it up to a light source,
or by passing a lamp inside.
Check the seal at the end of the element and replace if any sign of damage is evident.
Reassembly
Assemble the new element into the filter housing ensuring that the seal seats properly.
Reset the restriction indicator by depressing the rubber diaphragm.
Assemble the dust collector box parts, ensuring that they are correctly positioned.
Before restarting the machine, check that all clamps are tight.
Ventilation
Always check that the air inlets and outlets are clear of debris etc.
NEVER clean by blowing air inwards.
Cooling Fan Drive
Periodically check that the fan mounting bolts in the fan hub have not loosened. If, for any
reason, it becomes necessary to remove the fan or re-tighten the fan mounting bolts, apply a
good grade of commercially available thread locking compound to the bolt threads and tighten
to the torque value shown in the TORQUE SETTING TABLE later in this section.
The fan belt(s) should be checked regularly for wear and correct tensioning.
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