Taylor-Dunn AN 171, Operation, T Roubleshooting And Replacement Parts Manual

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Maintenance, Service, and Repair
Batteries
Page 4
Typical Hydrometer Float
Clean the batteries. Refer to
Cleaning the Batteries
section for information on cleaning the batteries.
Using part number
77-200-00
hydrometer, check and
record the specific gravity of each cell in the battery
pack.
If, after charging, none of the cells exceed a hydrometer
reading of 1250 then there may be a fault in the charging
system. If the charging system checks OK then the
batteries are no longer accepting a charge and should
be replaced.
NOTE: Refer to Charger Troubleshooting for
information on checking the charging system.
The highest reading will be the cell that is accepting the
most charge. This reading will be used to gauge all other
cells.
Compare the specific gravity readings to the highest
reading, if the difference between any of the cells is more
than 30-points, then that battery should be replaced.
NOTE: If the batteries are over one year old, it is
recommended to replace them as a set.
Reconnect the batteries, remove the blocks from the
wheels and test drive.
CHARGING
Refer to
Charging Your Vehicle
in section
Safety
Rules and Operating Instructions
.