24
OPM-171/B
MAINTENANCE SCHEDULE
ENGINE
Checks In Period of Use Frequency
Check for water in the fuel Pre-Filter Daily
Check Air-Restriction Indicator on Filter Daily
Engine Oil Level Daily/Prior to Use
Engine Coolant Level Daily/Prior to Use
Tension and Condition Check of
Ancillary Belt
600 Hours
Engine Oil Replacement 600 Hours
Oil Filter Replacement 600 Hours
Fuel Pre-Filter Replacement 600 Hours
Fuel Filter Replacement 600 Hours
Clean Radiator 600 Hours
Air Filter Replacement 1200 Hours
Change Blow-By Filter 1800 Hours
Ancillary Belt Replacement 3000 Hours
Turbocharger Visual Inspection 1200 Hours
Alternator Visual Inspection 3600 Hours
Clean/Replace Radiator Cap 3600 Hours
Engine Coolant Replacement 3000 Hours
Note: Some operating conditions may require more
frequent maintenance intervals.
COMPRESSOR
Checks In Period of Use Frequency
Oil Level Daily/Prior to Use
Drain air/water from system Daily/Prior to Use
Check oil level 50 Hours
Tighten all screw pipe fittings &
electrical screw terminal fittings
50 Hours
Check all other connections for firm
seating
50 Hours
Clean air filter 100 Hours
Inspect complete air system for
damage/leaks
250 Hours
Check belt tension 250 Hours
Check function of safety valves 250 Hours
Check Pulley tension and alignment 250 Hours
Replace fine separator cartridge 2000 Hours/Annually
Change oil and replace 2000 Hours/Annually
Replace oil filter 2000 Hours/Annually
Replace filter element in intake air filter 2000 Hours/Annually
Check system for leaks and inspect
system
2000 Hours/Annually
Clean air/oil cooler 2000 Hours/Annually
Check fan for cracks or other damage
and clean
2000 Hours/Annually
Clean external compressor surfaces 2000 Hours/Annually
6. Correctly position the guards inserting the anti-
vibration plugs.
7. Secure the other guards.
STORAGE
PREPARING THE ENGINE FOR A LONG PERIOD
OF INACTIVITY
In the case of a planned period of inactivity that lasts longer
than two months, to prevent the interior parts of the
engine and some components of the injection system from
oxidizing, prepare the engine as follows:
1. Drain the lubricant oil from the sump after heating the
engine.
2. Pour 30/M protective oil into the engine up to the
“minimum” level indicated on the oil level dipstick. Start
the engine and run it for approx. 5 min.
3. Drain the fuel from the injection circuit, from the filter
and from the injection pump channels.
4. Connect the fuel circuit to a tank containing CFB
protective liquid (ISO 4113) and introduce the liquid by
pressurizing the circuit and driving the engine for
approx. 2 min. after excluding injection system
operation.
The operation required can be completed by directly
polarizing terminal 50 of the electric starter motor with
positive voltage equal to that of the nominal system voltage,
using the designated conductor.
5. Nebulize the 30/M protective oil in a quantity of
approx. 130 g (10 g per liter of displacement) in the
turbocharger intake inlet, during the engine turning
operation described in the previous paragraph.
6. Close all of the engine’s intake, discharge, ventilation
and bleeding holes with plugs or seal them with
adhesive tape.
7. Drain the residual 30/M protective oil from the sump,
which can be used for an additional 2 preparations.
8. Place warning notices of ENGINE WITHOUT OIL on the
engine and dashboard.
Illustration 3