Wood’s Powr-Grip EO3VLW - Manual (Page 6)

Rev 9.0/9-13 4 EO3VLW: #35193AFT
OPERATION
B
EFORE
U
SING THE
L
IFTER
All of the following preparations must be completed prior to operating a vacuum lifter with the
Vacuum Loss Warning Buzzer installed. The operator must read and understand this
INSTRUCTIONS manual, including all WARNINGS . If necessary, contact Wood’s Powr-Grip or
an authorized dealer for assistance.
Perform all inspections and tests required by the I
NSPECTION and T ESTING S CHEDULES (see
MAINTENANCE). Test the strength of the Warning Buzzer’s battery, as directed in B
ATTERY
T
EST
AND
R
EPLACEMENT
(see MAINTENANCE).
WARNING: Make sure alarm is clearly audible over ambient noise at operator
position.
The volume of the alarm may be adjusted by rotating the alarm shutter on the Warning Buzzer's
cover. Make sure the alarm is loud enough to be heard over any other noise that may be present
while the lifter is in use: In addition, the alarm must be clearly audible at the maximum distance
the operator may be from the lifter, as well as through any barriers or obstructions between the
operator and the lifter. In order to be considered clearly audible,
the alarm volume must
exceed ambient noise by at least 15 dBA at the operator position. 1 Since the Maximum
Alarm Volume is 103 dBA, ambient noise must not exceed 88 dBA under any circumstances.
Furthermore, if ambient noise measures 88 dBA, the alarm volume must be set to maximum and
the operator must remain within 2 ft [60 cm] of the Warning Buzzer, in order for it to be
effective.
Note: Using the Warning Buzzer in wet environments may require the operator to take special
precautions: Although the Warning Buzzer's exterior surfaces can tolerate some exposure to
water vapor, they are not designed to be water-tight. Submerging the Warning Buzzer or using
it in rain may damage its components; these and similar conditions must be avoided.
1
Consult CE Standard EN 457 for alternative ways to determine whether the alarm is clearly audible to operators.