©Copyright AMKUS Rescue Systems, Inc. 2020
LAI-002 April 29, 2020 Rev00
16
7.6 SPREADING / SQUEEZING / LIFTING
Rotating the control valve actuator regulates the hydraulic
fl
ow rate and power delivered to the tool. Turning the control valve actuator
to the end stops provides maximum hydraulic
fl
ow rate and power.
Figure 7.6A
WARNING
When operating the spreader, the tool may rotate as it meets resistance. If tool rotation places
the user, operator, or others in jeopardy, immediately release the control valve actuator. Stop and
modify the extrication procedure. The deadman safety feature returns the control valve actuator
to the center (neutral) position stopping arm movement. Seek another purchase point to proceed
with the extrication.
WARNING
Spreading, squeezing, pulling, and lifting operations can cause loads to become unstable.
Unstable loads can cause injury or death. To avoid load instability:
• Position the spreader tips to maintain maximum contact with the surfaces to be spread,
gripped or lifted.
• Always stabilize the object being lifted.
TIPS MAY SLIP
INCREASE GAP AND
REPOSITION TIPS
CORRECT
STARTING POSITION
INCORRECT
STARTING POSITION
Figure 7.6B
For exchanging spreader tips, See Section 8.1 on page 17.
