Yuchai YC135, Operation And Maintenance Manual

Page: 97 / 183

97
9.1.3. Battery
P
RECAUTION WITH BATTERY
•
Never approach the battery with flames and sparks.
•
Acid inside the battery is dangerous. If it drops is your
eyes or skin wash with large quantity of water and call
medical emergency suddenly.
When the ambient temperature drops, the capacity of battery will also drop. If
the battery charge ratio is low, the battery electrolyte may freeze. Maintain the
battery charge as close as possible to 100%, and insulate it against cold
temperature so that the machine can be started easily the next morning.
Measure the specific gravity and calculate the rate of charge from the
following conversion table.
Fluid temperature 20 °C 0 °C -10 °C -20 °C
Rate of charge
100% 1.28 1.29 1.30 1.31
90% 1.26 1.27 1.28 1.29
80% 1.24 1.25 1.26 1.27
75% 1.23 1.24 1.25 1.26
9.2 ENGINE STARTING IN COLD WEATHER
To start engine in cold weather, proceed according to write in the paragraph
“START ENGINE IN COLD WEATHER”.
9.3 PRECAUTION AT WORK END IN COLD WEATHER
To avoid that water and mud will freeze on tracks or on other parts, making
machine travelling impossible, follows these rules:
•
Dry carefully hydraulic pistons.
•
Remove completely water and mud on the machine frame. Ice and mud
may damage gaskets.
•
Park the machine on solid and dry ground. If it is impossible part it on
boards.
•
Open the drain valve to remove water in fuel pipe to avoid that will freeze.
•
Cover up the battery or take it out the machine and put it indoor.
Remember that battery performance drops when temperature drops.