Maintenance Manual
MAN-00
167
XYLO
mHawk
February 2012/ Rev1
The repair methods given by the manufacturer in this document are based on the technical specifications
,
current at the time of release. The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of
or
whole of the present document,
are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra
Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution
© 2012 Mahindra & Mahindra Ltd.
State of Charge:
The state of charge of the battery can be easily
checked in two ways:
Specific gravity test:
The hydrometer compares the specific gravity of
electrolyte with water.
Specific gravity readings:
•
By measuring the specific gravity of the electrolyte, you can identify whether the battery is fully
charged, requires charging, or must be replaced. The battery must be at least 75% charged to
perform load test or each cell must have a specific gravity of 1.230 or higher to proceed with
the load test.
1.
Wear suitable eye protectors (goggles). Remove the vent caps or covers from the battery.
2.
Squeeze the hydrometer bulb and insert the pickup tube into the cell close to the battery
positive terminal.
3.
Slowly release the bulb to draw in only enough electrolytes to cause the float to rise. Do not
remove the tube from the battery.
4.
Read the specific gravity indicated on the float. Be sure the float is drifting free, and does not
contact with sides of the barrel. Read the hydrometer at eye level. Disregard the slight
curvature of liquid on the float.
5.
Note the reading for all the cells. The difference in specific gravity readings should not be more
than 0.05.
Battery Specific Gravity to be inspected at every 10000 kms.
Do not allow battery fluid to contact with skin, eyes, fabrics, or painted surfaces. Do not touch
or rub your eyes until you have thoroughly washed your hands. If acid contacts eyes,
immediately flush with water and seek medical attention if necessary.
Specific gravity varies with the temperature. If the electrolyte temperature is substantially
above 27 deg. C add seven points (0.007) to the observed specific gravity reading for every 10
deg. C by which the actual temperature is above 27 deg. C. Deduct seven points per 10 deg C
where the observed reading is below 27 deg. C to obtain the temperature corrected reading at
27 deg. C.
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