Product Manual

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Instruction book
5 Maintenance
5.1 Gas engine maintenance
Consult the engine “Owner’s manual”.
5.2 Preventive maintenance schedule
The schedule contains a summary of the maintenance instructions. Read the respective
section before taking maintenance measures.
When servicing, replace all disengaged packing components, e.g. gaskets, O-rings,
washers.
The “longer interval” checks must also include the “shorter interval” checks.
Interval Operation
Daily/8 Hours
Check lubricant levels several minutes after stopping. Drain and replace
contaminated lubricant.
Drain moisture from the receiver tank, drop legs, and air traps. (If subject to
freezing, store in heated area first to remove ice.)
Visually inspect the compressor and safety guards.
Check for unusual noise or vibration.
Check for lubricant leaks.
Check pressurized components for rust, cracks, or leaks.
Weekly/40 Hours Manually operate the pressure relief valves.
Clean cooling surfaces of the intercooler, aftercooler, and compressor.
Check for air leaks in the compressor and air distribution system.
Clean or replace the air intake filter. (Use a shorter interval in humid/dirty
conditions.)
Initial 100 Hours Completely drain lubricant from the crankcase and replace.
Monthly/160 Hours Check the belt tension.
3 Months/500 Hours Change the lubricant. (Use a shorter interval in harsh conditions.)
Torque the pulley clamp screws or jamnut.
6 Months/1000 Hours Retorque the cylinder to the head capscrews.
Inspect the compressor valves for leakage or carbon build-up. If necessary,
clean with a safety solvent.
12 Months/2000 Hours Inspect the pressure switch diaphragm and contacts.
Inspect the contact points in the motor/starter.