Paratech
Rescue Support System
Acme Thread Strut System
Paratech Strut System
The RSS (rescue support system) is
designed to be used in rescue situations
involving collapse, containment or
stabilization.
Paratech Strut System
Acme Thread Strut System
 The system consists of extendible struts, base plates,
end plates and extensions.
 Each strut contains a movable inner threaded shaft.
This allows the strut to be extended or retracted
manually. (struts also have an air connection which
allows for the strut to be extended
pneumatically….you do not have the additional
hardware for this feature)
 “crush” strength of the strut exceeds 50,000 lbs
Paratech Strut System
Acme Thread Strut System
Now let’s have a look at each
component of the system
Paratech Strut System
Threaded Strut
end plate or extension
attachment point (this
is where the strut meets the
vehicle or structure)
2 1/2” inner threaded shaft
Threaded lock nut
3” outer tube
Base plate attachment point
Paratech Strut System
Threaded Strut
The design of the thread strut allows for
“soft”placement with sensitive positioning, and
locking at an infinite number of extended
positions.
 Extend the strut manually to the desired
extension
 Thread the nut down the inner shaft to lock
against the outer tube.
 Inner shaft can be positioned and/or tightened
against the vehicle or structure by simply turning
the lock nut against the outer shaft
Paratech Strut System
Hinged Base plate
Hinged base plate will
pivot 45 deg from
vertical in either
direction.
Paratech Strut System
Strut Extensions
24” extension
12’ extension
 Extensions can be
integrated to add length
to the thread strut
system.
 Struts are not designed to
accept more than 2
extensions with a total
combined length of 36”
Paratech Strut System
“V” Base
3” cylinder with a “V”
machined groove
primarily used to
stabilize anything with a
corner or angle at the
point of contact
Paratech Strut System
Accessories
Hooks
Ratchet Straps
Used to secure struts at the base
plate to the vehicle or structure
Can be combined with the ratchet straps to
provide a secure hold to the vehicle or
structure
Paratech Strut System
Securing the Struts
Paratech Strut System
Securing the Struts
 Ratchet straps should be used to secure the struts
from the base plate to the vehicle or structure.
 Use ratchet straps to create “triangles” for the
greatest strength. (refer to previous slide to see
the angles that have been created)
 When securing ratchet straps to the vehicle
ensure that the attachment point is structurally
sound. Never attach to a suspension component
or other item that may break loose or may have
been damaged during the accident. Car frames
are the most desirable.
Paratech Strut System
System Set-Up
Lets have a look at the video to see the set-up
of the strut system on a vehicle.
Video posted on the training website (28 min)
Paratech Strut System
Cleaning and Maintenance
The major components require little maintenance to
ensure optimum performance.
 Keep the exterior free of dirt, grease and oil
 Clean exterior surfaces with a clean cloth dampened
with clean water
 Do not paint any RSS components
 Check for loose hardware, cracked or deformed parts
 Components should be field tested at least once every
3 months if they have not been used during training or
at an emergency call
Paratech Strut System