Wood’s Powr-Grip MRPT89DC - Manual (Page 17)

Rev 24.0/12-13 15 MRPT89DC: #35062
T
O
R
ELEASE THE
P
ADS FROM THE
L
OAD
WARNING: Load must be fully supported before releasing vacuum pads.
When the load is at rest and fully supported, turn the apply/release switch to the “RELEASE”
position (counter-clockwise) to force air into the vacuum pads, quickly breaking the vacuum seal.
Continue to hold the apply/release switch in this position until the pads disengage completely
from the load. When the apply/release switch is no longer held in the “RELEASE” position, it
automatically returns to the neutral position. Do not turn the apply/release switch to the “APPLY”
position until the pads are contacting the next load to be lifted. This conserves battery energy
and reduces the time required to apply the pads to the load, by preventing the vacuum reserve
tank from losing its vacuum.
A
FTER
U
SING THE
L
IFTER
Leave the apply/release switch in the neutral position and place the power switch in the OFF
position ( )(blue indicator light shuts off when power is disengaged).
CAUTION: Do not set the lifter against any surfaces which could soil or damage the
vacuum pads.
Built-in parking feet can be used to support an unloaded lifter when not suspended from a crane:
Make sure the pad frame is oriented vertically with the parking feet at the bottom. Use the
hoisting equipment to gently lower the lifter until the parking feet support its entire weight.
Make sure the lifter leans securely against an appropriate support; then detach the hoisting
equipment hook from the lift bail.
If the lifter is transported to another location, use the original shipping container and secure the
lifter so as to protect the vacuum pads and all other components from damage while in transit.
Storing the Lifter
Use the covers supplied to keep the vacuum pads clean.
!!-CE-!! In accordance with CE Standard EN 13155, the lifter is designed to rest on relatively
horizontal surfaces without tipping over. To store the lifter in this way, set the lifter with the
pads facing downward on a clean, smooth, flat surface. Then lower the lift bar to a horizontal
orientation (see OPERATION: T
O
T
ILT THE
L
OAD
) and place a support under the lift bail. However,
see the Note immediately following.
Note: Storing the lifter with its pad frame and lift bar in the horizontal orientation could damage
the tilt actuator, if the lift bar is not supported. Avoid placing the lifter in this position; or if this is
unavoidable, place a support under the lift bar. Also be sure to provide manual assistance to the
tilt actuator when raising the lift bar to the vertical position (see ASSEMBLY).
Charge the battery completely when placing it in storage and at six-month intervals thereafter
(see MAINTENANCE: B
ATTERY
R
ECHARGE
). After charging the battery, disconnect the electrical
connectors uniting the battery to the battery charger and to the vacuum generating system, in
order to prevent power drainage. Preferred temperatures for storing the battery are 32° to 70°
Fahrenheit [0° to 21° Celsius]. Higher temperatures require the battery to be charged more
frequently. Storage at temperatures above 100° Fahrenheit [38° Celsius] should be avoided.