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Maintenance, Service, and Repair
Batteries
Page 3
TESTING
Battery electrolyte will stain and corrode
most surfaces. Immediately and
thoroughly clean any surface outside of the
battery that the battery electrolyte comes
in contact with. Failure to clean may result
in property damage.
1. Make sure the key-switch is in the “OFF”
position, then remove the key.
2. Place the forward-reverse switch in the
center “OFF” position.
3. Confirm the electric park brake is applied.
4. Place blocks under the front wheels to
prevent vehicle movement.
5. Disconnect the main positive and negative
cables at the batteries.
Specific Gravity
NOTE: The battery must be fully charged before
performing this test.
The specific gravity of a cell is an indication of the actual
state of charge of the cell. A fully charged cell should
have a reading of 1275 to 1300 (see the illustration to
the right). A discharged cell will read 1100. Ideally, all
cells in a battery will have the same reading. Any cells
in a battery that vary by more than 30-points may be an
indication of a bad cell.
Clean the battery. Refer to
Cleaning
section for
information on cleaning the battery.
Using part number
77-200-00
hydrometer,
check and record the specific gravity of
each cell in the battery.
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
battery is 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: Individual cells in some industrial batteries
can be replaced. Contact the battery
manufacturer for more information.
Reconnect the battery, remove the blocks from the
wheels and test drive.
•
Explosive mixtures of Hydrogen gas are
present within battery cells at all times. Do
not work with or charge battery in an area
where open flames (including gas furnace
or water heater pilots), sparks, cigarettes,
or any other sources of combustion are
present. Always provide ample ventilation
in rooms where batteries are being
charged. Failure to do so may result in
severe bodily injury and/or property
damage.
•
A battery is a live electrical source. It
cannot be disconnected or neutralized. Do
not drop any tool or conductive object onto
the battery. A conductive object that comes
in contact with the battery terminals will
initiate a short circuit of the battery. This
could cause the battery to explode
resulting in severe bodily injury and/or
property damage.
•
Battery electrolyte is poisonous and
dangerous. It contains sulfuric acid. Avoid
contact with skin eyes or clothing. Wear
rubber gloves and safety glasses while
servicing batteries. DO NOT INGEST! This
may result in severe bodily injury.
Typical
Hydrometer
Float
Summary of Contents for TT-316-36
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Page 99: ...Sevcon Troubleshooting Page 3 Electrical Troubleshooting Identifying Your Controller...
Page 120: ...TAYLOR DUNN...
Page 134: ...TAYLOR DUNN...
Page 138: ...Illustrated Parts Page 2 Front Fork...
Page 140: ...Illustrated Parts Page 4 Front Brakes...
Page 142: ...Illustrated Parts Page 6 Tilt Steering Column and Gear...
Page 146: ...Illustrated Parts Page 10 Transmission Differential Case Rear Axle...
Page 148: ...Illustrated Parts Page 12 Rear Brakes Master Cylinder 8 Brake Body...
Page 150: ...Illustrated Parts Page 14 Rear Suspension...
Page 152: ...Illustrated Parts Page 16 Motor...
Page 156: ...Illustrated Parts Page 20 Brake Lines...
Page 158: ...Illustrated Parts Page 22 Wheels and Tires Ref wheel hub 1 2 5 assembly 4 3 6 7 8 9 10...
Page 164: ...Illustrated Parts Page 28 Miscellaneous Frame and Body...
Page 168: ...Illustrated Parts Page 32 Decals...
Page 172: ...TAYLOR DUNN...