4-45
SPECIFIC GRAVITY OF BATTERY ELECTROLYTE
PRECAUTIONS IN COLD CLIMATES
• Be careful of retaining the temperature of the batteries. If the temperature is too low, they may freeze, and their
quantities decrease significantly.
• Charge the batteries as soon as possible.
Measure the specific gravity when the liquid temperature becomes almost equivalent to the ambient temperature.
The specific gravity of battery electrolyte changes according to the liquid temperature. If the specific gravity is at the
lower limit or below (small value), charging is necessary.
Measure the specific gravity of the battery electrolyte by using a hydrometer and check the charging condition of
the battery.
Specific Gravity of Battery Electrolyte
Charging rate
Battery electrolyte temperature
-20 degrees C
(-4 degrees F)
0 degrees C
(32 degrees F)
20 degrees C
(68 degrees F)
100 %
1.31
1.29
1.28
90 %
1.29
1.28
1.26
80 %
1.28
1.26
1.25
75 %
1.27
1.25
1.24
4.14.2
DRAINING WATER AND SEDIMENT IN FUEL TANK
HANDLING OF FUEL OIL
• Wipe off spilled fuel to prevent a fire.
• Make sure that there is no fuel leakage after performing work.
1.
Move the machine to a level and firm place.
A
B
1
2
2.
Slightly swing the upper structure to a range in
which drain cock (1) at the rear of the fuel tank can
be released, and put the bucket on the ground.
3.
Stop the engine and move the control lock lever to
the "LOCKED" position.
4.
Place a drain container under drain hose (2).
5.
Use the starter key to open the side door on the
right side of the machine and hold it with the stay.
6.
Set drain cock (1) at the rear side of the fuel tank to
"Open" position (A) and drain water and sediment
deposited on the bottom.
In this time, be careful not to be splashed by the flushed fuel.
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