Adjusting Operation; Long Storage - Yanmar 3TNV Series Service Manual

2. Inspection and Adjustment

2.8 Adjusting Operation

Perform the adjusting operation of a engine as follows after the maintenance job:
1) Supply the fuel oil, lubricating oil and coolant water.
Note:
Check the levels of the lubricating oil and coolant water again after test running (for about 5 minutes)
and add as required.
2) Start the engine, and carry out idling at a low revolution (700 to 900 rpm) for a few minutes.
3) Run in the engine for about five minutes at the rated revolution (no-load). Check any water, fuel
or oil leak and existence of abnormal vibration or noise. Also check the oil pressure, coolant
water temperature and exhaust gas color.
4) Adjust the no-load minimum and maximum revolutions according to the specifications.
5) Perform loaded operation as required.

2.9 Long storage

Observe the following instructions when the engine is to be stored for a long period without operation:
1) Always drain coolant water in a cold season or before a long storage.(This is unnecessary when
antifreeze is used.)
[NOTICE]
Negligence of water draining will cause the coolant water remaining inside the engine to be frozen
and expanded to damage the engine parts.
Water draining procedure
a) Remove the radiator cap.
b) Loosen the water draining cock under the radiator to drain water from the inside.
c) Loosen the drain cock on the side surface of the cylinder to drain water from the inside.
d) After draining water, tighten the radiator cap and drain plug and cocks.
2) Remove the mud, dust and oil deposit and clean the outside.
3) Perform the nearest periodic inspection before the storage.
4) Drain or fill the fuel oil fully to prevent condensation in the fuel tank.
5) Disconnect the battery cable from the battery negative (-) terminal.
6) Cover the silencer, air cleaner and electric parts with PVC cover to prevent water and dust from
depositing or entrance.
7) Select a well-ventilated location without moisture and dust for storage.
8) Perform recharging once a month during storage to compensate for self-discharge.
52