Komatsu Utility 395F6001, Operation & Maintenance Manual

Page: 159 / 254

LONG PERIODS OF INACTIVITY
157
3.13.2 PREPARING THE ENGINE FOR A LONG PERIOD OF INACTIVITY
NOTE
• These operations must be carried out only if the engine is going to remain unused for more than 1
month.
• The first two operations must be carried out only on engines that have already run for more than 200
hours.
1 - Drain the oil from the oil pan and fill it with washing oil FIAT L35.
2 - Start the engine and let it run at low idle for 15 minutes.
Stop the engine and drain the oil.
3 - Fill the oil pan to the MIN. level with SAE 30 oil or with oil corresponding to the MIL - 2160B – type 2 specifica-
tions.
4 - Empty the fuel filters, disconnect the fuel pump intake pipe and connect it to an outside tank filled with CBF
(ISO 4113) oil.
5 - Start the engine and let it run at 800–1000 rpm for 15 minutes.
At this point, use a syringe to inject 40 g of SAE30 oil or of an oil corresponding to the MIL - 2160B - type 2
specifications in approximately 10 seconds.
6 - Stop the engine and drain the oil from the oil pan.
NOTE
• Recovered oil can be used again, for other two or three times, when preparing the engine for a long peri-
od of inactivity.
7 - Loosen the alternator, fan and coolant pump belt.
8 - Reconnect the pump intake pipe to the tank.
9 - Seal the exhaust pipe and all the intake and breather openings with adhesive tape and vynil bags.
10 - Position a sign with the clear writing “NO ENGINE OIL” on the steering wheel and on the engine.
IMPORTANT
• These operations must be repeated every 6 months.
3.13.3 MAINTENANCE DURING A PERIOD OF INACTIVITY
NOTE
• These operations must be carried out once a month.
1 - Recharge the battery and install it on the machine.
2 - Remove the seals from tank, air filter, exhaust pipe and breather outlets.
3 - Check the tyre pressure and remove the support blocks from the machine.
4 - Start the engine and let it run at low idle for 15 minutes.
5 - While warming the engine, remove the protection grease from the rods of the exposed hydraulic cylinders.
6 - Before moving the machine, make sure that the instruments, warning lights, lights, direction indicators, wind-
shield wipers and stoplights function correctly.
7 - As soon as possible, warm the hydraulic cylinders by lifting and extending the boom and the equipment-carri-
er slowly more than once.
8 - Release the parking brake and travel for short distances at low speed, applying the brakes every now and
then to allow the braking surfaces to settle down.