Wood’s Powr-Grip MRTA8HV11DC - Manual (Page 18)

Rev 10.0/9-13 16 MRTA8-DC: #35076
T
O
L
IFT AND
M
OVE THE
L
OAD
About the Tilt Linkage
WARNING: Make sure load is positioned correctly on lifter; unbalanced loads
may tilt unexpectedly.
The lifter’s tilt linkage is designed to automatically hold a balanced load in either the upright or
the flat position. However, an unbalanced load may tilt unexpectedly from the flat position to the
upright position or vice versa, when lifted. This could result in load damage or injury to anyone
positioned in the tilt path of the load. To minimize the potential for these problems, make certain
prior to lifting any load that it has allowable characteristics (see INTENDED USE: L
OAD
C
HARACTERISTICS
) and is attached correctly to the lifter (see T
O
A
PPLY THE
P
ADS TO A
L
OAD
preceding).
Using or Locking out the Optional Tilt Lock
When a lifter is equipped with the tilt lock, it can be used to prevent unexpected tilting motion.
Since the lifter is designed to maintain either the vertical or the horizontal pad frame orientation
when correctly loaded, the tilt lock should only be needed if the operator is not able to maintain
control of the load using the control handles or other appropriate means. For example, if the
lifter is being used to install glass in a multi-story building, engaging the tilt lock would prevent
the load from accidentally tilting due to wind loads or other causes of incidental loading. The tilt
lock is intended as a secondary safety device and does not eliminate the need to center the load
correctly on the pad frame (see T
O
A
PPLY THE
P
ADS TO A
L
OAD
: Positioning the Lifter on the Load
preceding). Failure to center the load may damage the lifter and would
make it difficult to operate the lock.
The tilt lock can be set to engage automatically when the pad frame
reaches the vertical or horizontal position, or it can be locked out,
depending on the application. To allow automatic locking, make
sure the lock plate/handle (1) is set to engage the lock catches
(2). If not, pull outward on the round knobs of the spring
plungers (3) and turn them 90° to release the lock plate/handle.
Make sure that the lock plate/handle slides freely along the tilt
linkage (4) before you attempt to tilt the pad frame. If the lock
plate/handle does not engage the catches or if the pad frame
exhibits excessive play in either the vertical or the horizontal
orientation, the stop cams (5) for the tilt linkage may require
adjustment. Once the tilt lock is set to the automatic mode, simply
pull on the lock plate/handle to disengage the lock.
To lock out the tilt lock, make sure the lock plate/handle is secured so
that it cannot engage the catches. If otherwise, turn the round knobs of
the spring plungers 90° and then slide the lock plate/handle upward until
the spring plungers engage. Make sure that the lock plate/handle does
not slide along the tilt linkage.
1 LOCK PLATE/HANDLE
2 LOCK CATCHES
3 SPRING PLUNGER
4 TILT LINKAGE
5 STOP CAM