Transcript Paratech Air Struts

Paratech Air Struts
SECTION: Tools and Equipment
ISSUED: 02-2011
REVISED: ##-####
Objectives
• To provide an understanding of the
following
– Specifications
– Use
– Maintenance
– Safety
Specifications
• Acmethread Strut 25-36
– 2 ½” diameter aluminum
alloy inner threaded shaft
– 3” diameter aluminum
alloy outer tube
– 50,000lb. axial crush
strength
– 25” – 36” length
Specifications
• Tips
– Steel cone point base
• Adds 1 ½” to strut length
– V base
– Rigid base
• 12”x12”
Specifications
• Extensions
– 12” strut extension
– 24” strut extension
Pressure Regulator
• Piston type regulator
• Up to 6000 psi
incoming pressure
• Safety valve set
• 135 or 150
• Depending on model
Dual Deadman Controller
• Maximum operating
pressure
• 118 psi
• Safety valve setting
• 118 psi
• Single inlet and dual
outlets
• Quick connect fittings
• With locking rings
Supply Hose
• 16’ in length
• 3/8” diameter
• Maximum working pressure of
250 or 300 psi
• Depending on model
• Burst pressure at 1000 psi
• Equipped with threaded lock
rings
• Black hose
• From regulator to dual
deadman control valve
• Color hose
• From dual deadman control
valve to lifting bag
Use
• Trench collapse
– Attach proper tips and hoses prior to lowering
into trench
• Building collapse
• Vehicle stabilization
Operating Procedure
Pressure Regulator
• Attach to an SCBA
cylinder
• Adjust outlet pressure
• Turn adjusting knob to
set at 135 psi
Operating Procedures
Dual Deadman Controller
• Attach black hose from regulator
• Complete with locking ring
• Attach colored hose(s) to outlet(s)
• Complete with locking ring
• Dual safety deadman valves
• Up is green
• Down is red
Maintenance
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Check overall condition of strut
Clean with mild soap and water
Check elasticity of rubber gasket
Ensure movement of strut
Ensure locking collar moves freely
Check threads for damage or burrs
Safety
• Wear appropriate PPE
– Minimum of helmet, gloves, and eye
protection
• Ensure tips/extensions are locked in place
before use
• Lock strut in place with locking collar
• Never over pressurize strut
• Never lift load with strut
• Never use more than 2 extensions per strut for
maximum of 3 feet extension
• Maximum strut length 6 feet