hurst hydraulic equipment

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