Wood’s Powr-Grip EO1DCB - Manual (Page 10)

Rev 10.0/9-13 8 EO1DCB: #35191AFT
B
ATTERY
T
EST
The DC Vacuum Back-Up System is equipped with a battery gauge to
help the operator evaluate whether the battery has adequate energy for
lifting. Factors such as the condition of the battery, the time required to
execute a lift, and the porosity of the load combine to determine how
much battery energy is needed. It is the operator’s responsibility to
evaluate these conditions and to make sure the battery has
sufficient energy to complete a lift safely. Check the battery energy
before every lift and also at the end of each day's use, to decide whether
a charge is needed (see B
ATTERY
R
ECHARGE
to follow). 2 Do not rely on the
Back-Up System when battery energy registers lower than 50% (that is, when only red lights are
illuminated), regardless of the estimated energy requirement.
WARNING: Never rely on Back-Up System if battery energy is lower than 50% of
capacity.
While the Back-Up System is activated (see OPERATION: To Use the Back-Up System), its battery
gauge automatically monitors the energy level of the Back-Up System's battery. However, the
battery gauge shuts off temporarily while the Back-Up System's vacuum pump is running, to
prevent an inaccurate reading. When the pumping cycle is completed, the battery gauge
requires a few moments to stabilize before it displays an accurate energy reading again.
While the Back-Up System is
not activated (see OPERATION: When the Back-Up System is Not in
Use), its battery energy can be checked manually using the battery test button. If the Back-Up
System has not been used since the battery was charged, the battery gauge may falsely indicate
an energy level that is higher than actual, due to a “surface charge” on the battery. After the
Back-Up System’s pump runs for approximately one minute (see B
ACK
-U
P
F
UNCTION
T
EST
preceding), the surface charge dissipates, allowing the operator to take an accurate energy
reading.
2
The battery charger must be disconnected from its AC power source in order to test the battery energy; otherwise, the energy
reading on the battery gauge would not be accurate.