3-9
Chapter 3 OPERATION
Test Operation
To conduct a test operation, follow the procedures below.
Before starting the engine, switch the water heater ON (automatic mode) and keep the coolant temperature prop-
erly.(Emergency generator with water heater)
Note: For engine operation, refer to "Normal Engine Operation" (3-10).
Starting and Stopping
1. Start the engine.
2. Operate the engine at a low idling speed under no load for 5 to 10 minutes for warm-up.
3. Stop the engine.
Inspection
1. Leave the engine be stopped for about 30 minutes.
2. During this period, check the engine and surrounding area for leaks of fuel, engine oil or coolant.
3. At 30 minutes after the engine stop, check the oil level with the oil level gauge.
4. If the oil level is low, add engine oil from the oil filler. Be sure to use the engine oil of the same brand and type.
5. Open the radiator cap and check the coolant level.
6. If the coolant level is low, add coolant to the specified level.
If the engine is equipped with a reserve tank, fill the reserve tank with coolant to the "FULL" level line as well.
Always switch the water heater ON (automatic mode) through a whole year.
If the switch is not ON (automatic mode), each cylinder varies considerably in combustion and abundant white
exhaust gas generates at the starting up the engine. Unburned fuel may explode in the exhaust pipe. (Emergency
generator with water heater)
Never open the radiator cap while the engine is running or immediately after the generator set is stopped. Stop the
engine and open the cap after the coolant temperature lowers sufficiently.
Place a waste cloth over the radiator cap, and loosen the cap about a 1/4 turn or stand the lever to the upright
position to release internal pressure.
The coolant is hot while engine is running and immediately after the engine stops. If the cap is opened when the
coolant is at operating temperature, steam and hot coolant may blow out and result in burns. To avoid a risk of get-
ting scalded by steam, wear thick rubber gloves or wrap a cloth around the cap.
When closing the radiator cap, be sure to tighten securely.
Always use the coolant having the same concentration.
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