hurst hydraulic equipment section: tools and equipment issued: 02-2011revised: ##-####
TRANSCRIPT
Hurst Hydraulic Equipment
SECTION: Tools and EquipmentISSUED: 02-2011 REVISED: ##-####
Objectives
• To provide an understanding of the following– Specifications– Use– Maintenance– Safety
Hurst Power Unit
• Hurst JL-4GH-SI • 4-Cycle 5.5 HP
Honda Gasoline engine
• 5000 psi output pressure
• Uses fluid to create hydraulic pressure to power rescue tools
Hurst Power Unit
• Unit storage– Full choke– Fuel left off to prevent
flooding
• To Operate– Open fuel – Pull starter– Move throttle lever
down to run position– Turn both valves to
pressure
Hurst Simo Unit
• Hurst ML-4G-SI • 4-Cycle 3 HP Honda
Gasoline Engine• Two tool operation
with two 16’ hose sections
• Portable power for incidents beyond the reach of the hose reel
• 60 lbs. dry weight
Hurst Simo Unit
• Unit storage– “On” position– Full Choke– Fuel off– Throttle ¼ to ½
• To Operate– Open fuel– Pull starter– Open Choke– Full throttle– Turn both valves to
pressure
Hose Reel
• 2 - 100’ Length• Pre connected to
power unit• Construction
– Thermoplastic inner tube
– Kevlar reinforcement– Polyurethane jacket
• 20,000 psi burst pressure– 4 to 1 safety factor
Standard Couplings
• Located on hose reel and power unit connections• To connect
– Turn and pull sleeve back– Insert male into female– Release sleeve to connect– Rotate ¼ turn
• To disconnect– Line up notch on female– Pull sleeve back– Pull male out
• Cannot be connected or disconnected under pressure
Streamline Couplings
• Found on tool connections
• To connect– Insert male into female – Twist firmly in
clockwise direction
• Reverse operation to disconnect
• Can be connected and disconnected under pressure
Hurst Spreaders
• MLT-32– 31,000 lbs spreading
force of @ 5000 psi– 16,500 lbs closing
force– 32” Max spreading
distance– 59 lbs
Hurst Cutters
• MOC II– 152,000 lbs Cutting
force @ 5000 psi– 7” cutter opening– 47 lbs
Hurst Rams
• Sizes– JL-20
• 15” to 22” spread
– JL-30• 23” to 36” spread
– JL-60• 35” to 60” spread
• 15,000 lb Opening Force
• 6,000 lb Closing Force
Accessories
• Standard tips• Pancake tip• Shackles for spreaders
– Remove pin to change attachments
• Ram attachments including V and point– Attachment can be used
on either side• Ram extensions
– Extensions must be on the fixed side
– 8”, 12”, 16”
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Use
• Auto extrication
• Machine entrapment
• Cutting rebar during breaking and breaching
• Heavy lifting
• Any heavy rescue operation where tools would be applicable
Operation
• Tools have an open / close toggle
• Can be a thumb, star, or handle
• Fully open toggle (valve) to allow maximum pressure
Maintenance
• Check fluid levels in power units– Fuel, hydraulic fluid, and oil
• Check for loose connectors and leaks in all power units, rescue tools, and hoses
• Check hoses for cuts, bulges, and overall condition
• Check all tools and equipment for cleanliness
Maintenance
• Use warm soapy water to wipe down tools
• Clean couplings by submerging in warm soapy water
• Use rag, sponge, or soft bristle brush to scrub
• Rinse and dry thoroughly
• Do not use WD-40 on tools
Safety
• Wear appropriate PPE– Minimum of helmet, gloves, and eye
protection when performing maintenance
• Lift equipment with legs
• Pay attention to pinch points when operating
• Allow tool to do the work