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5 Maintenance
5.1 Maintenance schedules
5.1.1 Maintenance schedule for QES 9 and QES 11
Before carrying out any maintenance activity, check that the start switch is in position O and that no electrical power is present on the terminals.
Maintenance schedule Daily
50 hrs
after initial
start-up
Every 250
hours
Every 500
hours
Every 1000
hours
Yearly
Service pak
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TBA* TBA*
-
For the most important subassemblies, Atlas Copco has developed service kits that combine all wear parts. These service kits offer you the benefits of genuine parts,
save on administration costs and are offered at reduced price, compared to the loose components. Refer to the parts list for more information on the contents of the
service kits.
Drain water from fuel filter x
Check/Fill fuel level (3) x
Empty air filter vacuator valves x
Check air intake vacuum indicators x
Check engine oil level (if necessary top up) x
Check coolant level x
Check control panel for alarms and warnings x
Check on abnormal noise x
Check function of coolant heater (option) xx
Replace air filter element (1) xx
Check/Replace safety cartridge xx
Change engine oil (2) (6) xxxxx
Replace engine oil filter (2) x xxxx
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