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The Gold Standard

for Positioning

Valuable Loads,

Up to 300 tons (272,400 kg)

To Within 0.001” (0.025mm)

The more valuable your

heavy load the more you need

the Hydra Set

PrecisionLoad Positioner

Customer List (Partial)

Aerojet CorporationAerospatialeAir FranceAlcatelAlcoa Aluminum Co. of AmericaAlenia AerospaceAlitalia AirlinesAmerican AirlinesAnsett AirlinesAntrix CorporationAquimecaArcoArizona Power & LightAstriumAura Inc.Babcock &Wilcox CorporationBall AerospaceBaltimore Gas & ElectricBechtel CorporationBendix CorporationBlue OriginBoeing CompanyBrazilian AerospaceBritish AirwaysBurlington Northern RailroadBWX Technologies, Inc.Canadian Space AgencyChina National Space Adm.Combustion EngineeringConsolidated Rail CorporationCorning GlassDoosan Heavy Industries

EADSEastman Kodak CompanyEG&G LogisticsEOS TechnologiesEuropean Gas Turbines, S.A.European Southern ObservatoryEuropropulsion S.A.General DynamicsGeneral Electric CorporationGoodrich CorporationGuangzhou AircraftHanjung IndustriesHarris CorporationHercules CorporationHoneywell, Inc.Hughes CorporationHyundai Heavy Industries CompanyIndia Space Research OrganizationItek OpticalITT IndustriesJackson & TullJapan AirlinesJAXA-Japan Aerospace ExplorationAgencyJohns Hopkins UniversityKorea Aerospace Research InstituteKorea Electric Power CompanyKorea Hydro & Nuclear Power Co.Lawrence Livermore Nat’l. Lab.Liquid Propulsion SystemsLockheed MartinLouisiana Power & LightL. A. Dept. of Water & Power

Copyright® 2010, Del Mar Avionics.®Del Mar Avionics and Hydra Set®are registered trademarks of

Del Mar Avionics.

The more valuable

your heavy load,

the more you need the

Hydra Set® Load Positioner.

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EuropeGALIXIA

Bat. Socrate23 Blvd. Victor Hugo, 31770 Colomiers, France

Tel: 33 (0)5 62.12.04.63Fax: 33 (0)5 62.12.04.78E-mail: [email protected]

United StatesDel Mar Avionics

1601 Alton Parkway, Suite C, Irvine, CA 92606-4801Tel: (949)250-3200Fax: (949)261-0529

Toll Free: (800)854-0481E-mail: [email protected]

Malaysian AirlinesMatra MarconiM.I.TMetsys TechMississippi Space ServicesMitsubishiMosavia CorporationMotorolaNASA-Ames Research Ctr.NASA-Dryden Flight Research Ctr.NASA-Glenn Research Ctr.NASA-Goddard Space Flight Ctr.NASA-Jet Propulsion LabNASA-Kennedy Space Ctr.NASA-Langley Research Ctr.NASA-Marshall Space Flight Ctr.NASA-Stennis Space Flight Ctr.National Data Buoy CenterNational Oil Well CompanyNorthrop-Grumman Corp.Northwest AirlinesOrbital Sciences CorporationPacific Crane & Rigging Co.PaR Nuclear Co.Pennsylvania Power & LightPerkin-Elmer CompanyPrinceton UniversityProgrammed Composites Inc.Progressive Engineering CompanyRaytheonSaab, ABSandia National Labs.Schenck Rotex

Sener Ing. y Sistemas, S.A.Singapore AirlinesSNECMASouthwestern Electric PowerSpace Systems LoralSpacex CorporationSpar Aerospace Ltd.Spectra LabSpectrum AstroStandard Tool & DieStanford UniversitySwales AerospaceTeledyneTennessee Valley AuthorityThai AirwaysThiokol CorporationTRW Inc.UK AstronomyUnited AirlinesUnion Carbide CorporationUnitech Composites Corp.United Launch AllianceUnited Space AllianceUnited States Air ForceUnited States ArmyUnited States NavyUnited TechnologiesUniversity of ArizonaUniversity of CaliforniaUniversity of ColoradoUtah State UniversityWestinghouse CorporationWyle Labs

CoversQ7:CoversQ7 1/26/10 3:22 PM

O-LC 1/2 ton 453.6 kg 25.2 in 64.0 cm 12 in 30.5 cm 44 lb 20 kg 88 lb 48 kgA-LC 1 ton 907.2 kg 29.5 in 74.9 cm 12 in 30.5 cm 89 lb 40 kg 250 lb 114 kgB-LC 2 1/2 ton 2,268.0 kg 29.5 in 74.9 cm 12 in 30.5 cm 89 lb 40 kg 250 lb 114 kgC-LC 5 ton 4,535.9 kg 31.7 in 80.5 cm 12 in 30.5 cm 109 lb 50 kg 250 lb 114 kgD-LC 10 ton 9,071.9 kg 36.0 in 91.4 cm 12 in 30.5 cm 218 lb 99 kg 435 lb 198 kgE-LC 20 ton 18,143.7 kg 46.1 in 117.1 cm 12 in 30.5 cm 538 lb 244 kg 750 lb 340 kgES-LC 25 ton 22,679.6 kg 46.1 in 117.1 cm 12 in 30.5 cm 538 lb 244 kg 750 lb 340 kgF-LC 50 ton 45,359.2 kg 50.8 in 141.7 cm 12 in 30.5 cm 1193 lb 541 kg 1350 lb 615 kgFS-LC 55 ton 49,896.0 kg 50.8 in 141.7 cm 12 in 30.5 cm 1193 lb 541 kg 1350 lb 615 kgDHS-75 75 ton 68,038.9 kg 72 1/2 in 184.2 cm 12 in 30.5 cm 1800 lb 816.5 kg 2300 lb 1043.3 kgDHS-150 150 ton 136,077.7 kg 90.0 in 228.6 cm 12 in 30.5 cm 4000 lb 1814.4 kg 4800 lb 2177.2 kgDHS-250 250 ton 226,796.2 kg 90.0 in 228.6 cm 12 in 30.5 cm 4600 lb 2086.5 kg 5500 lb 2494.8 kgDHS-300 300 ton 272,400.0 kg 90.0 in 228.6 cm 12 in 30.5 cm 4600 lb 2086.5 kg 5500 lb 2494.8 kg

Overall Length Standard Net Shipping Weight Model Capacity Retracted Lowering stroke Weight (Approx.)

Standard models (O thru D) are furnished with an eye-type upper connector and a ‘D’-shaped lower connector. Standard models E, ES and F are furnished with‘D’-shaped upper/lower connectors. Standard DHS models (75 thru 300-ton) are furnished with a shackle-type upper connector and a safety hook lower connector.

Accessories

Pneumatic Remote Control� Increases versatility of the Hydra Set by providingpneumatic remote operation, up to 100 feet(30.5 meters) away from a load being positioned.� Increases utility by providing a zero-weight, balancedload operation that cannot be achieved with manualoperation. Load stops automatically if a pre-determinedresistance is met, allowing the operator to align, mate ordemate blind surfaces without risk of damaging them.

Wireless Remote ControlConsisting of a Hydra Set with new Load Controller

and a separate Hand-Held unit, this product permits remoteoperation of the load positioner with instant data feedback(weight, linear travel, rate of travel, load deviation, batterystatus and other conditions) to the operator. Operates from adistance of up to 1,000 feet (305 meters). See the WirelessRemote Control Section for details.

Electronic Remote Control Digital Weight DisplayElectronically indicates weight of load in pounds

or kilograms.

Electronic Remote Digital Linear Travel DisplayElectronically indicates linear travel of piston

rod and lower connector.

Positive Fluid Retention System (PFRS)Some Hydra Set models may be configured to

ensure positive retention of fluids via encapsulation andpressurization of the unit. Combined with a remote

Mate, Demate with Precision to within 0.001 inch(0.025mm)

Precise control over heavy loads being moved,mated or demated by a crane, has always been difficult.Workers beneath the crane face the dangers from suddencrane starts and stops, which result in up and downoscillation during the critical stages of mating anddemating. Often, this can result in damage to both theload and support fixtures, or worse, place the workers atrisk.

And that’s where the value of the Hydra SetLoad Positioner from Del Mar Avionics comes in. Placedbetween the load and the crane or hoist, the Hydra SetLoad Positioner eliminates these problems, and ensuresusers against unforeseen damage to critical components.Loads up to 300 tons (272,400kg) can be moved safelyand reliably—with precision to within 0.001 inch(0.025mm).

Since 1965, Del Mar Avionics has suppliedthousands of Hydra Set Precision Load Positioners for a variety of applications in rugged environments and indus-tries worldwide.

Hydra Set Load Positioners Give You Peace of Mind

� Once the load is moved to within several inches of its final position, the Hydra Set Positioner lets you easethe load onto its support fixture.� Weight readouts are accurate to within one half ofone percent of full scale, traceable to the NationalInstitute of Standards and Technology.� Eliminates oscillations produced by sudden starts andstops in crane cables, chains or slings. Also eliminatesthe need to jog the load into position, saving wear oncrane brakes.Safe and Reliable� A fail-safe loadlocking system provides back-up duringpower failures or sudden loss of pneumatics.(Pneumatic and Electro-hydraulic models only).� Five-to-One mechanical Design Safety Factor; prooftested to twice rated capacity.� Built-in Load Scale indicates binding or galling of load by registering a change in the weight readout.Also serves as a crane scale to prevent overloadingcrane, slings, etc. in conformance with industry andOSHA requirements.Operating Flexibility and Simplicity� Four methods of operation: manual, pneumatic, electro-hydraulic or Wireless Remote

Avoid Damage to Your Sensitive Loads

control console (pictured above), the PFRS is used inclean room environments to protect spacecraft or othercritical components from contamination.

Hook RotationThe load can be rotated 360˚ in either direction

in a plane perpendicular to linear travel by manipulationof the hook rotation control on the remote control con-sole (available as an option on Models DHS-250 andDHS-300 only).

Custom EngineeringHydra Set Precision Load Positioners are avail-

able with special eyes, hooks, connectors, longer orshorter stroke lengths and other variables. Ask us aboutspecial requirements.

� Del Mar Avionics employees gather with two 250-ton HydraSet Precision Load Positioner Systems being readied for shipmentto overseas nuclear power plants.

� Choose from 13 standard models, with capacitiesfrom 1/2-ton to 300 tons (or rated in kilograms).� In just minutes, your crew can be trained to operate.Pull the up handle to raise the load; pull the down handle to lower it.Wireless Remote Control� Consisting of a Hydra Set with new Load Controllerand a separate Hand-Held unit, this product permitsremote operation of the load positioner with instantdata feedback (weight, linear travel, rate of travel,load deviation, battery status and other conditions)to the operator. Operates from a distance of up to1,000 feet (305 meters). See the Wireless RemoteControl section for details.

Five Important Advantages of the Hydra Set PrecisionLoad Positioner

� Eliminates risk of damage� Creates a safer work environment� Cuts labor costs� Saves time� Improves productivity

AerospaceSatellite loading and positioningAerospace components assembly and test/verticalstabilizer assembly

Commercial AviationComponent assemblyLanding gear, horizontal stabilizer assemblyEngine installation and removalComponent load testing

Nuclear and Fossil Fuel Power Generating PlantsTurbine teardown and rebuild ConstructionFuel rod replacementsTransformer placementsTurbine bearing changes

Heavy IndustryMill roll changesBearing inspectionTool and mold changesMachinery loading

� (Cover Caption) Knowing that one wrong move canresult in a million-dollar mistake, workers at the KennedySpace Center rely upon the Hydra Set Precision LoadPositioner to directly mate NASA’s Mars Orbiter onto anassembly dolly. The 8,000-pound spacecraft, built atLockheed Martin’s Denver Facility, launched in 2001.

� A remotecontrol consolecombined witha PositiveFluid RetentionSystem protectsspacecraftand otherclean-roomcomponentsfromcontamination.

9

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Nuclear Power & Fossil Fuel Plants

The Del Mar Avionics Hydra Set® PrecisionLoad Positioner has become an important industrial aidfor moving valuable loads in the power generationindustry around the world. Used in conjunction witha crane or hoist, loads of up to 300 tons (272,400 kg)can be moved, mated, and demated with precisionplacement to within .001 inch (0.025 mm), regardlessof dimensions.

Over four decades of proven performance ensureour customers of product protection from unforeseendamage to critical, expensive components. The HydraSet Load Positioner never lets them down. In themanual mode, binding or galling of critical or blind partsis indicated instantly on the integral load scale, so thatlinear travel can be stopped immediately. With theremote controller accessory, and on all electro-hydraulicunits, the zero-weight balance mode freezes all movementautomatically upon encountering even the slightestresistance, so that any obstacle can be removed beforedamage occurs.

Applications:

1

� Above, a Hydra Set Precision Load Positioner assistsin the placement of sensitive nuclear reactor compo-nents. Hydra Set Positioners have been used at thePalo Verde Nuclear Site in Arizona, theWestinghouse/Hanford Engineering FFTF Project inWashington, Baltimore Gas & Electric Clavert Cliffs 1and 2, and several other nuclear power sites around theworld.

� Safe, delicate placement of America’s Space Shuttleon the Boeing 747 Transporter is accomplished withthree (3) Hydra Set Precision Load Positioners.Micro-inching precision capability will continue to beused by NASA well into the 21st century for loading,mating and demating critical components. Commercial

Aviation & Aerospace

Mating and demating criticalcomponents accurately is absolutelyessential in the commercial aviation andaerospace industries. The Hydra Set®Precision Load Positioner assuresmanufacturers the micro-inchingprecision they demand: to within .001inch (0.025mm).

During assembly and testing ofaircraft components, satellites andassociated space hardware, the Hydra SetLoad Positioner eliminates binding orgalling that can damage these expensive,critical parts. Final positioning isaccomplished quickly, gently and withthe confidence of fail-safe operation.

Pages1-8Q7:Pages 1/26/10 3:24 PM Page 1

� Absolute confidence is mandatory when positioningan expensive load like this. The Hydra Set LoadPositioner ensures safe and precise placement in afraction of the time required by other methods.

� (Lower Left Photo) Inspection, maintenance andrepair are no longer time-consuming and costly.Turbine components are easier to inspect with theHydra Set Load Positioner micro-inching precision.

� Using the Hydra Set system to place this $750,000gear, bottom photo, into final position gives an addedmeasure of assurance to the crane operator thatunforeseen jogging, binding or galling will be avoided,thus preventing damage to an expensive component.

Applications:

2Dynamically tested to twice its rated capacity,and accurate to within one half of one percent

of full scale (traceable to the National Institute ofStandards and Technology), the Hydra Set systemprevents damage resulting from unforeseen impactcollision.

Half-ton to 300-ton load capacities enable theHydra Set Load Positioner to move anything from asmall gear to a large auxiliary generator with completesafety and precision.

General Industry

When the job calls for heavy, valuable objects tobe moved, mated or demated, and with exactingprecision placement, the missing link between the craneor hoist and the load is the Del Mar Avionics HydraSet® Precision Load Positioner.

Micro-inching precision to within .001 inch(0.025mm) by either simple manual maneuvering, oroptional automatic remote control, is guaranteed withcomplete safety. Hang-up or binding of critical parts isindicated instantly on the built-in load scale.

Critical placement of expensive, heavy loads isaccomplished using the Hydra Set Load Positioner’sunique micro-inching capability to raise and lower loadsto within .001 inch. By simply attaching the appropriatemodel to your crane or hoist, and lowering the load towithin inches of the final position, the Hydra Set systemwill complete the job.


The upper portionof the outer cylin-der is charged withnitrogen, whichmay be introducedor releasedthrough a valve.

Nitrogen

Hydraulic Fluid

To avoid a vacuum,the upper portion of theinner cylinder is ventedto atmosphere.

The Hydra Set isprecharged withnitrogen to maintainconstant back pressure(or constant prime) onthe pump. Also serves toretract the lowerconnector when theload is removed.

A separator ring providesa moving seal betweenthe hydraulic fluid andthe nitrogen.

Arrows shown indicateup movement. Duringdown movement, theflow direction is reversed.

�� Up MovementOccurs when

hydraulic fluid, pumpedfrom the outer cylinder, forces thepiston upward.

�� Down MovementOccurs when hydraulic

fluid is transferred to the outercylinder due to the weight load.

How the Hydra Set® LoadPositioner Works 3

Load CellAn electronic tension-measuring device, withautomatic temperaturecompensation, whichrelays stable, instanta-neous, accurate loadweight data to the digitalweight display.

PressureRelief Valve


� The Spitzer Infrared Telescope in final assembly atLockheed-Martin Space Systems Co. utilizing a Model “B” (2 1/2-toncapacity) Hydra Set Load Positioner

� Operator with remote Hand-Held Unit maintains completeand safe control over the load at all times.

Quality ConstructionOnly the finest quality materials

are used in construction.Most models are

finished in black instrumentcrackle for long life and apleasing appearance. The

Hydra Set Load Positioneris NASA qualified.

Light Emitting Diode (LED)Displays the weight of the load

lifted. Also acts as a strain gaugeunder known load conditions by

instantly indicating any unex-pected loss or gain of weight.

Up PumpOne complete stroke raises a

suspended load approximately.005 inch (0.126mm). Partial

strokes provide control to within.001 inch (0.025mm).

Lower ConnectorThis is where the load is attached. Special eyes orhooks can be furnished to

meet individualspecifications.

Return Force DialIndicates return force in pounds,allowing the Hydra Set PrecisionLoad Positioner piston rod toretract automatically after the

load has been positioned.

Down Valve HandleOperation allows the load todescend slowly and smoothly.Accuracy of descent is controlledto within .001 inch (0.025mm).Both up and down spring-loadedhandles automatically return tothe closed position when released.

Piston RodStandard models allow maximumstroke of 12 inches (30.5cm).Special-length strokes are available upon request. Rodautomatically retracts to closedposition when load is released.

Upper ConnectorConnected to the crane hook orhoist lifting line, the Hydra SetPositioner has an ultimate designstrength of five times ratedcapacity.

Load CellAn electronic tension-measuringdevice, with automatic tempera-ture compensation, which relaysstable, instantaneous, accurateload weight data to the digitalweight display.

Hydra Set® PrecisionLoad Positioner4


Hydra Set® Precision Load PositionerSince 1965, the Hydra Set Precision Load

Positioner from Del Mar Avionics® has provided theaerospace, aviation, power generation and other heavyindustries with a proven means to allow critical loads,suspended from a crane or hoist, to be mated or demated,raised or lowered, with excursions to within 0.001 inch(0.025 mm).

During a typical placement, the load is loweredby the crane or hoist to a safe distance from its intendedresting position. Then, the operator engages the HydraSet Load Positioner for final and reliable incrementalplacement to ensure safety to the load and surroundingcritical components. Any impediment encountered dur-ing the mating/demating process is sensed, immediatelyhalting the load from any further movement. OtherHydra Set models, including those which are manuallyoperated or remotely controlled, require physical connec-tion between the operator and the Hydra Set LoadPositioner.

Wireless RemoteControl 5Optimum Maneuverability, Precise Control,

Easier Readings with Wireless Remote Control All cable connections between the operator and

the Hydra Set Load Positioner are eliminated. There isno possibility of damage from cable or hose entangle-ments. The operator enjoys the freedom to move aboutthe work area while maintaining full and safe control ofcritical loads--from up to 1,000 feet (305 meters). Nolonger do users need to use binoculars, strain gauges, voiceradio equipment or other aids to obtain accurate readingsfrom the Hydra Set load gauge. With Wireless RemoteControl, readings are instantly and readily displayed at alltimes from the Hand-Held Unit. Functional operatingdata, such as linear travel, rate of travel, weight, loaddeviation, and battery status are displayed continuously,providing the operator with valuable, real-time data. TheHydra Set Wireless Remote Control Load Positioner pro-vides the operator with more detailed information andfiner incremental control for improved safety andefficiency.Major Additions to the Standard Hydra Set LoadPositioner Design

State-of-the-art hardware, dedicated software andadvanced technology have been combined to makewireless remote control practical, as well as to provide theuser with numerous built-in safeguards to protect valuableloads from human or system error. These additions com-prise the Load Controller and the Hand-Held Unit.

� The Spitzer Infrared Telescope in final assembly atLockheed-Martin Space Systems Co. utilizing a Model “B” (2 1/2-toncapacity) Hydra Set Load Positioner

� Operator with remote Hand-Held Unit maintains completeand safe control over the load at all times.


Upper Connectorconnects to the crane or hoist

Dual Antennaesend/receive the

clearest signal to ensure

uninterrupted communications

Lower Connectorprovides a means to

attach the load

Return Force Dialindicates returnforce in pounds orkilograms.

Motorsdrive mechanicaldevices to pumphydraulic fluid (toraise the load) orrelease the fluid (tolower the load) to

and fromthe innercylinder

Hydra Set®

Precision LoadPositioner

Load ControllerMounted on the

Hydra Set Load Positioner,this sub-system containsthe electronics, motors andbatteries. The Load Controller iscommanded by digital instructionscontained in radio transmissionsfrom the Hand-Held Unit. HydraSet load and controller statusinformation is transmitted to theHand-Held Unit from the Load Controller electronics.

Load Controller electronics include the radiotransceiver, microcontroller, and separate modules foraccommodating interface functions and for driving themotors which control the hydraulic flow.

Load Controller power is provided by14.5-Volt nickel-metal- hydride rechargeablebatteries. To ensure continued operation andlabor efficiency, a spare quick-connect/disconnectbattery pack is furnished with each LoadController.

Load CellAn electronic tension-measuring device, withautomatic temperature compensation, which

relays stable, instantaneous, accurateload weight data to the digitalweight display.

Load Controller

6


Dual Antennaesend/receive the clearest signal

to ensure uninterrupted communications

System Functionscontrolled by

seven push buttons

Emergency Stop(E-STOP) halts allsystem operations

Joystickcontrols up/downtravel

Digital Displayshows load, weight,

travel, load deviation, battery

status, rate of traveland set-up options

Hand-Held UnitThis portable device is easily carried by the

operator with shoulder straps. Numerous controls anddisplays provide maximum control over allfunctions of the Hydra Set Load Positioner.

For example, a LOAD DEVIATIONwarning light glows if the indicated load weightvaries from the preset load weight, alerting theoperator with an immediate indication of theload encountering an obstruction. A liquid-crystal display shows the load weight, travel andload deviation, battery status, rate of travel andsystem set-up options. The user can pre-selectseveral parameters to match the exactrequirements of each load.

System functions are controlled byseven push buttons on the Hand-Held Unit,including OPERATE, MENU and ENTER.The others function according to variablelegends which appear above each button.

Up and down movement of the load iscontrolled by a joystick. A large, red, manually-controlled EMERGENCY STOP (E-STOP)button is prominently located on the unit toenable the operator to immediately halt allsystem operations. The unit is powered by onerechargeable 14.5-Volt nickle-metal-hydridebattery.

Ultra-Reliable Data TransmissionTransceivers embody "Spread

Spectrum" technology to provide optimum

data transmission and control. Several separatefrequencies are scanned sequentially to identifythe clearest signal, which is automatically selected,

providing uninterrupted data transmissionand control.

Built-in Safeguards to Protect Critical LoadsIf any condition occurs which may

compromise safety or successful operation,actuation of the manual E-STOP button onthe Hand-Held Unit halts instantly all loadmovement.

To prevent damage to critical loadsduring de-mating operations when the loadhad been secured to a base platform, theknown weight of the load is entered in theHand-Held Unit. During the de-matingoperation, as this known load weight isapproached, a warning light on the unit isilluminated; if the known load weight isexceeded, an automatic E-STOP halts thede-mating operation.

Up to eight malfunctioning conditionswill generate an automatic E-STOP, such as adefective sensor, transmitter or joystick, or asevere discharge of one or more of the batteries or a loss of communications. Interactivedisplays assist the operator in clearing anE-STOP before normal operations can beresumed. Equally important, the system willnot respond to an incorrect command.

� Illustration ofthe Hydra Set LoadPositioner withWireless RemoteLoad Controller.

Hand-Held Unit

7


Wireless Remote Control Offered as Upgrade onManual Hydra Set® Models

All models with capacities up to 55 tons(49,900kg) can be upgraded at the factory toaccommodate wireless remote control capability.Consult the Hydra Set Customer Service Departmentfor retrofit details, prices and delivery schedules.

OPERATE ModeE-STOP Button Pushed

Clear EMERGENCYSTOP

SETUP Mode No. 1

Hand-Held UnitDisplays8

MENU Mode

OPERATE Mode

OPERATE Mode showingE-STOP for Radio Timeout

�� Method of OperationThe Hydra Set® Precision Load Positioner may

be operated by one of four basic methods. Models Othrough F may be operated manually up to 50 feet awayby manipulating the up pump or down valve handles viaup and down lanyards. Models O through FS may alsobe fitted with the optional CCI-400 Remote Controlleraccessory for precise pneumatic (nitrogen gas) operationfrom up to 100 feet away from the Hydra Set® unit.

Models O through FS can be configured aswireless remote control systems. Models DHS 75,DHS 150, DHS 250 and DHS 300 are electro-hydraulically operated.

Specifications

The electrically operated remote controlconsole is standard and contains built-in electronicdigital display functions indicating piston travel andweight of load being positioned.

�� Operating NoteOptimum performance is achieved when the

load to be raised or lowered is mid-range of the capacityof the unit to be selected. Avoid operating with loads atless than 20 percent of the total capacity of the unitselected.

Helpful Messages Assist the OperatorThe user may select from a number of operating

options to suit a particular task or working environment,such as choosing operating modes, selecting data logging(optional), tare-set options, time and date, and units ofmeasurement.


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