MAINTENANCE
3-13
235E MM165 (3--91)
ELECTRICAL SYSTEM
BATTERIES
The standard six 6-volt batteries or the optional
two 18-volt batteries provide all of the energy
used by the machine. The standard batteries are
rated at 295 A/h at a 6-hour rate. The heavy duty
batteries are rated at 306 A/h at a 4-hour rate.
They require regular maintenance to keep them
operating their best.
Do not allow batteries to remain in discharged
condition for any length of time.
Do not operate machine if batteries are in poor
condition or only 25% of the charge left.
Periodically clean the top surface and the
terminals and check for loose connections. Use a
strong solution of baking soda and water. Brush
the solution sparingly over the battery top,
terminals, and cable clamps. Do not allow any
baking soda solution to enter the battery. Use a
wire brush to clean the terminal posts and the
cable connectors. After cleaning, apply a coating
of clear petroleum jelly to the terminals and the
cable connectors. Keep the tops of the batteries
clean and dry.
Keep all metallic objects off the top of the
batteries, as they may cause a short circuit.
Replace worn or damaged wires.
Check the electrolyte level in each battery cell
before and after charging the batteries. Never add
acid to batteries, only water. Do not overfill. Keep
vent plugs firmly in place at all times, except when
adding water or taking hydrometer readings.
FOR SAFETY: When Servicing Machine, Avoid
Contact With Battery Acid.
Use a hydrometer to check the electrolyte specific
gravity.
A
B
01373
CHECKING BATTERY SPECIFIC GRAVITY
A. Hydrometer
B. Battery
If one or more battery cells tests lower than the
other battery cells, (0.050 or more) the cell is
damaged, shorted, or is about to fail.
NOTE: Do not take readings immediately after
adding water---if the water and acid are not
thoroughly mixed, the readings may not be
accurate. Check the hydrometer readings against
this chart:
SPECIFIC GRAVITY
BATTERY
at 80
_
F (27
_
C)
CONDITION
1.265
100% charged
1.225
75% charged
1.190
50% charged
1.155
25% charged
1.120
Discharged
NOTE: If the readings are taken when the battery
electrolyte is any temperature other than 80
_
F
(27
_
C), the reading must be temperature
corrected.
Summary of Contents for 235E
Page 1: ...235E MM165 Operator Manual ...
Page 6: ...ABOUT THIS MANUAL 235E MM165 3 91 d ...
Page 14: ...SPECIFICATIONS 235E MM165 3 91 1 2 ...
Page 18: ...OPERATION 235E MM165 3 91 2 2 ...
Page 34: ...MAINTENANCE 235E MM165 3 91 3 2 ...
Page 42: ...MAINTENANCE 235E MM165 3 94 3 10 03380 HYDRAULIC SCHEMATIC ...
Page 70: ...MAINTENANCE 235E MM165 3 94 3 38 ...
Page 72: ...APPENDIX 235E MM165 3 91 4 2 ...