Doosan 10/370, Operation And Maintenance Manual

Page: 62 / 96

Operating & Maintenance Manual Maintenance
62
WARNING
!
Follow the instructions provided by the antifreeze supplier when adding
or draining the antifreeze solution. It is advisable to wear personal
protective equipment to prevent skin and eye contact with the antifreeze
solution.
Air Filter Elements
The air filter element should be replaced regularly (refer to the MAINTENANCE CHART) or
when the restriction indicator shows red, whichever comes first. The aircleaner precleaner
dumps should be cleaned as indicated in the MAINTENANCE CHART (more frequently in
dusty operating conditions).
Removal
CAUTION
!
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.
Reassembly
Assemble the new element into the filter housing ensuring that the seal seats properly. Secure
element by tightening nut.
Before restarting the machine, check that all clamps are tight.
Ventilation
Always check that the air inlets and outlets are clear of debris etc.
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.