Power Riser Nuevo

7/30/2019 Power Riser Nuevo

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ENERPAC~~ Instruction SheetPOWERFUL SOLUTIONS. GLOBAL FORCE.

L3085 Rev.B 09/11

Pow'r-Riserw Lift ing JacksPR Series Air Operated Models

Index:English 1-8Francais N/ADeutsch N/AItaliano N/AEspafiol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N/AHollands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N/APortugues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N/ASuomalainen N/ANorsk N/ASvensk N/A< P : : l C N/AB*~ N/A1.0 IMPORTANT RECEIVING INSTRUCTIONSVisually inspect all components for shipping damage. Shippingdamage is not covered by warranty. If shipping damage is f?und,notify carrier at once. The carrier is responsible for all repair andreplacement costs resulting from damage in shipment.

SAFETY FIRST2.0 SAFETY ISSUESIi\ Read all instructions, warnings and precautionsill rn carefully. Follow any recommended safetyprecautions to avoid personal injury or damage tothe jack. Enerpac cannot be responsible for any damage or injuryfrom unsafe use, lack of maintenance or incorrect operation. Donot remove warning labels, tags, or decals. In the event anyquestions or concerns arise, contact ENERPAC or a local Enerpacdistributor for clarification.The jack hydraulic system's maximum working pressure is 6,000to 10,200 psi [414 to 703 bar], depending on model. Refer topressure listings inTable 1, General Specifications.If you have never been trained on high-pressure hydraulic safety,consult your distributor or service center for a free EnerpacHydraulic Safety Course.A CAUTION is used to indicate correct operating or maintenanceprocedures and practices to prevent damage to, or destruction ofequipment or other property.A WARNING indicates a potential danger that requires correctprocedures or practices to avoid personal injury.A DANGER is only used when your action or lack of action maycause serious injury or even death.Failure to comply with the following safety precautions couldresult inequipment damage and/or personal injury:

WARNING: Wear proper personal protective gear whenoperating hydraulic equipment.WARNING: The jack is to be used for lifting only! Supportthe load after completing the lift using approvedaccessories or by other appropriate means. Never getunder a load being supported only by the jack.

~WARNING: Never exceed the rated capacity of the jack.

, Allow for a margin of safety that accounts for possible shifting loads or side loading conditions.

DANGER: To avoid serious personal injury, keep~ ~ hands and feet away fr~m ~ydraulic c~inder and_ related components durinq J ack operation.DANGER: Do not handle pressurized lines. Escaping oil~ under pressure can penetrate the skin~causing serious~7'- injury. If oil is injected under the skin, see a doctor

immediately.WARNING: The jack's internal relief valve must not beIy \ repaired or adjusted except by an authorized service~ center. Never tamper with overload protection devices.

Higher settings may result in equipment damage and/or personalinjury.CAUTION: When jack is not in use, fully retract theIy \ cylinder and protect the entire unit from external dam~ge.

~ Keep the jack clean, avoid weld splatter, and store In aclean dry area. INSPECT ALL J ACK COMPONENTS BEFORE USE.

~CAUTION: Keep the jack away from flames and~ . heat. For optimum performance, do not expose thejack to temperatures above 65C [150 "F].

WARNING: BE SURE LIFTING ARRANGEMENT ISIy \ STABLE BEFORE LIFTING LOAD. Use jack on solid~ surface capable of supporting the load and the base ofthe jack. Always center the load on the lifting saddle of the jack.If the jack is not perpendicular to the load, slipping or loss of loadis possible.~ WARNING: Distribute the load evenly when performing% lifts with multiple jacks. Failure to heed this warning mayii cause loss of load and/or failure of the jack, resulting inproperty damage and/or personal injury......., IMPORTANT: Hydraulic equipment must only beI) serviced by a qualified hydraulic technician. For repair

service, contact the Authorized ENERPAC Service Centerin your area. To protect your warranty, use only ENERPAC oil. WARNING: Immediately replace worn or damaged partsIi1 with genuine ENERPAC p~~s. Standard grade parts willoft!!! break causing personal Injury and property damage.

ENERPAC parts are designed to fit properly and withstand highloads.

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3.0 PRODUCT DATATable 1 - General Specifications

Model psi barPRAMA060 --L 6,000 414

Maximum Operating Pressure PRAMA100 --L & PRASA100--L 9,700 669PRASA150 --L 10,200 703PRASA200-- 10,200 703Model US Tons Metric Tons KnPRAMA060 --L 60 54 533

Load Rating PRAMA100 --L & PRASA100--L 100 90 889PRASA150 --L 150 136 1333PRASA200--L 200 181 1778

Maximum Hydraulic Oil Temperature 170 of [76C)Hydraulic Reservoir Oil Capaci ty(approximate - when f illed to 4.2 gallons [15,9 liters]proper level)Air Requirements (min imum) 50 CFM @ 80 psi [14161/min @ 5,5 bar]

Table 2 - St roke Lengths and WeightsShort Stroke Stroke Length Weight Long Stroke Stroke Length Weight

Models inches mm Pounds Kg Models inches mm Pounds KgPRAMA06014L 14 356 390 177 PRAMA06027L 27 686 600 272PRAMA 10016L 16 406 510 231 PRAMA 10027L 27 686 600 272PRASA10016L 16 406 510 231 PRASA 10027L 27 686 600 272PRASA 15016L 15.5 394 570 258 PRASA15027L 26.5 673 708 321PRASA20016L 15.5 394 640 290 PRASA20027L 26.5 673 825 374Note: Refer to Enerpac catalog for product external dimensions.

Key:1. Handle Lock Lever2. Handle Assembly3. Lifting Bar*4. Air Supply Valve5. Control Valve, Manual7. Air Line Lubricator 8-+-+-f-H8. Reservoir Air Breather9. Air Line Filter/Regulator10. Air Inlet Connection (1/2" NPT)11. Oil Fill Plug12. Oil Filter13. Hydraulic Cylinder14. Hydraulic Reservoir15. Oil Drain Plug16. Air Muffler17. Lifting Eyebolt*18. Wheel Bearing Grease Fitting19. Tire Air Valve*Not present on all models.

10 4 1112

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14 15Figure 1, Major Features and Components - PRAMA Series Models

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10 4 11Key:1. HandleLock Lever2. HandleAssembly3. Lifting Bar*4. AirSupplyValve5. Control Valve,Air Operated6. Pendant7. Air LineLubricator8. ReservoirAir Breather9. Air LineFilter/Regulator10. Air InletConnection (1/2" NPl)11. Oil FillPlug12. Oil Filter13. HydraulicCylinder14. HydraulicReservoir15. OilDrainPlug16. Air Muffler17. Lifting Eyebolt"18.WheelBearingGreaseFitting19. TireAirValve

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*Not present on all models.

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14 15Figure 2, Major Features and Components - PRASA Series Models

4.0 INITIAL SETUP4.1 Adding OilBefore startup, remove the oil fill plug (callout #11) and verifycorrect oil level. Oil level should be about 1 inch [25 mm] belowthe reservoir top cover plate. Add Enerpac HF hydraulic oil toreservoir if necessary. See Section 6.2 for additional information.4.2 Air RequirementsLubricated air is necessary to provide shaft seal lubrication for theair motor, and to prevent rust. All models are equipped with anautomatic air line lubricator set to feed approximately 3 drops perminute.Before startup, check the level in the air line lubricator (callout #7)and add additional lubricant if needed. Use an SAE 10 [ISO 32]detergent oil or an approved antifreeze lubricant. See Section 6.4for additional information.A filter/regulator with moisture trap (callout #9) is installed in theair line ahead of the motor. For efficiency of output and controlof speed, use an air line of not less then 3 ,4 inch pipe size. Airpressure and flow must be at least 50 CFM @ 80 psi [1416 I/min@ 5,5 bar]. The air inlet connection is a 1/2" NPT female thread.Be certain that compressed air is clean and dry. Wet air is lesscompressible than dry air, and may cause a reduction in jackperformance. Excessive moisture in the air line can cause rustformation in the air motor. Allowing excess moisture or foreignparticles to enter the air motor will void the Enerpacwarranty.4.3 Operating The Handle Assembly1. Push handle lock lever (callout #1) to release lock pin.2. With lock pin released, position handle assembly to desiredlocation and release handle lock lever to engage lock pin.3. Raise handle assembly (callout #2) upward and pull handle

assembly (callout #1) to engage lock pin into desiredhole setting.

3. The jack can now be tilted back onto the wheels and pushedor pulled to the work area. Use caution when walkingbackwards.4. If necessary, the jack can be lifted using the lifting bar(callout #3 - if equipped) or the lifting eyebolt(s) (callout #17- if equipped)./1\ WARNING: Never attempt to lift the jack by using theill handle assembly. ~he handle assembly is to be usedonly for roiling the J ack on Its wheels - not for lifting.Note: Lifting bars are installed on short stroke PRAMA060 PRAA100 and PRASA 150 Series models. Lifting bars are not u~ed o~any long stroke models or on short stroke model PRASA20016L.All long stroke models are equipped with one lifting eyebolt.The short stroke model PRASA20016L is equipped with twolifting eyebolts. Lifting eyebolts are not present on short strokePRAMA060, PRA_A100 and PRASA 150 Series models.4.4 Using the J ack ForThe First Time1. On PRAMA Series models, locate the directional control valvelever and make sure it is in the center (neutral/hold) position.Note: On PRASA Series models, the air operated directionalcontrol valve is in the center (neutral/hold) position when thependant buttons are not depressed.2. Connect an air hose at the air inlet connection (callout #10).Note: On PRAMA Series models, the motor will start immediatelywhen the air supply valve is opened. On pendant controlledPRASA Series models, the motor will start automatically wheneither pendant button is depressed.3. Open the air supply valve (callout #4). Using the regulatorknob, adjust the air pressure to a minimum of 80 psi [5,5 bar].4. Shift the control valve (callout #5) to the advance and retractpositions and look for movement in cylinder. For PRASASeries models with pendant control, use the buttons onpendant (callout #6) to control cylinder movement.

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5.0 OPERATION5.1 Cont ro l Valves (See Figure 3)4-Way Manual Valve: Shifting lever to right directs pump output to advance port. Shifting lever to left directs pump output to retract port. Center position is neutral/hold. Pump output is directed backto reservoir.4-Way Air Operated Valve with Pendant: To advance cylinder - depress up-arrow button. Forneutral/hold - release both pendant buttons. To retract cylinder - depress down-arrow button.Lifting speed and torque can be regulated by using the airpressure regulator. The regulator should be adjusted to 100 psi[7 bar) maximum with air motor running and air supply valvecompletely open.IMPORTANT: Pressure settings of above 100 psi [7 bar) willresult in reduced air motor life.

Manual Valve: Center position is neutral/hold.

Air Operated Valve: Valve stays in center (neutral/hold)position until Down-Arrow or Up-Arrow button is pressed.Down-Arrow Up-Arrow(Retract) (Advance)

Figure 3, Cont ro l Valve and Pendant Detai ls5.2 Jacking SafelyYou must know the weight of what you intend to lift and choosea jack with at least 20 percent additional capacity.All persons operating the jack should obtain and be familiar withthe American National Standards Institute rules that apply tohydraulic rams and jacks (ASME ANSI B30.1) or the equivalentstandards used in your country or region.

1 1 \ WARNING: Never crawl under or place any part of yourill body under any load at any time while it is being lifted,by the Pow'r-Riser jack.I I \ ! WARNING: The Pow'r-Riser jack is intended for lifting~ purposes only and should not be used to hydraulicallysupport the load for any period of time after the lift hasbeen completed. Support the load with U-Rings or supportstands immediately after it has been lifted to the desired height.1 1 \ WARNING: Never leave the Pow'r-Riser jackill unattended during operation, even for a brief period of time. Closely monitor jack operation at all times and beprepared to stop lifting or lowering immediately.

5.3 Operati ng Instructions (See Figures 3, 4 and 5)TO RAISE THE LOAD:1. Before raising the load, be certain that the jack has been

placed on a solid support surface. Final positioning canbe accomplished by lowering the handle to its horizontalposition to place the jack under the loads as required. SeeSection 4.3 for handle operating instructions.2. If needed, install extensions and spacers (optionalaccessories) on the cylinder as required. Refer to Section5.5 for instructions.3. Before connecting air supply hose, be certain the air supplyvalve is in the "off" position. Check the control valve lever to

be sure it is inthe center (neutral/hold) position. See Figure 3.4. To raise the load, open the air supply valve to start the motor.Then, move the control valve lever to the advance position. Ifjack is equipped with pendant, depress the up-arrow buttonto start motor and advance cylinder.

~CAUTION: When lifting with more than one jack, be, especially careful to keep the load level. Leveling is best

accomplished by throttling with the air supply valve orby alternating and stopping jacks to keep the load level enoughto be stable.5. When load has reached the proper level, move the control

valve lever to the center (neutral/hold) position. If jack isequipped with pendant, release up-arrow button to returnvalve back to the center (neutral/hold) position.6. Be sure that the proper Enerpac U-Rings are installed onthe cylinder (refer to Section 5.7 for U-Ring installation andstacking instructions). If U-Rings are not used, be sure thatsupport stands of appropriate load rating are in place.7. Move the control valve lever to the retract position. Allowthe load to lower until it is supported by U-Rings or supportstands. Then, return the lever to the center (neutral/hold)position. If jack is equipped with pendant, depress andrelease the down-arrow button as required, until the load issupported by U-Rings or support stands.

~WARNING: After lifting is completed, always support

, the load using the proper Enerpac U-Rings or appropriately rated support stands. Never rely on thecylinder's hydraulic pressure to support the lifted load.IMPORTANT: if there is to be no cylinder movement for morethan one minute, it is recommended that the motor be turned offto prevent overheating (models with manual directional controlvalve only).TO LOWER THE LOAD:1. Be sure the control valve lever is in the center (neutral/hold)position. If jack is equipped with pendant, be sure that bothbuttons are released (not pressed) so that valve returns back

to the center position.2. Open the air supply valve. On models equipped with amanual directional control valve, the motor will start.3. Shift the control valve lever to the advance position ordepress the pendant up-arrow button. Allow cylinder to

advance a small amount, so that load clears the supportstands or U-Rings. Then place the control valve lever in thecenter (neutral/hold) position or release the up-arrow button.4. After the support stands or U-Rings are removed, movethe control valve lever to the retract position or depress thependant down-arrow button to retract the cylinder.

~CAUTION: Be careful while lowering to ensure that the, load is lowered evenly, so that load shifting does not occur.

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5. When cylinder has fully retracted, place the control valvelever in the center (neutral/hold) position or release thependant down-arrow button. On models with manualdirectional control valve, close the air supply valve to stopthe motor.

5.4 After Completing the J obFully retract the cylinder and close the air supply valve. With themotor off, shift the control valve several times to relieve systempressure.Disconnect the air supply hose and remove any extensions orspacers from the cylinder. Place U-Rings (if used) on the storageracks provided on the jack.Store the jack and its accessories only in a clean and dry area,free of moisture and direct sunlight.5.5 Stacking Instructions - Extensions and Spacers(SeeFigure4)Extensions and spacers are available as optional accessoriesfrom your Enerpac authorized distributor. They may be orderedindividually or in sets. Refer to tables 3 and 4 for additionalinformation.PRE Series extensions allow the jack's useful lifting height tobe increased in increments of 5,7,9 or 11 inches [127, 178,229 or 279 mm]. On short stroke Pow'r-Riser models only, largerextensions can also be used, allowing the useful lifting height tobe increased in increments of 14 or 18 inches [356 or 457 mm].PRS Series spacers allow additional fine adjustment of theextension stack height. They may be used alone or inconjunctionwith PRE Series extensions.

&CAUTION: Never exceed the maximum additional stack, height for your jack model. Refer to Table 5 for additional information.~----- Load Cap

(see Table 6)

I [ J I . . . r-----PRS Series Spacer(see Table 4)

P ) ; : ~ > : : Y ~ ; . ~ \ : : r - - - PRE SeriesExtension(see Table 3)

Important: Refer toTable 5 for maximumadditional stack heightinformation.

1 . .. - - - - Cylinder RodFigure 4, Extension and Spacer Installation (typical)

I i\ . WARNING: Failure to observe the following instructionsillcould allow load to shift or drop. Serious personal injury and/or property damage may result.

When using PRE Series extensions and/or PRS Series spacers,always obey the following rules: For loads up to 60 tons [54 metric tons]: Any two PRE Series

extensions may be included in the stacking arrangement,provided that the maximum stack height (See Table 5) is notexceeded and the following exceptions are observed:1) J ack model PRAMA06014L: Only one PRE18 extensioncan be included in the stacking arrangement.2) All jack models ending in "16L": Only one PRE11,PRE14or PRE18extensioncan beincluded inthe stacking arrangement.3) All jack models ending in "27L": Extensions PRE14andPRE18cannot be included in the stacking arrangement. Theseextensions are designed for short stroke jacks only (modelsending in "14L" and "16L").

For loads over 60 tons [54 metric tons], or strokes over 14inches [356 mm]: Only one PRE Series extension and one PRSSeries spacer can be included in the stacking arrangement. Never exceed 3 inches [76 mm] in total spacer height. Never exceed the maximum additional stack height for yourjack model. Refer to Table 5, dimension "X".

*Foruseonshort strokejacks only(modelsendingin"14L"or"16L")

Table 3 - PRE Series Extensions (optional accessories)Extension Thickness (each)ModelPRE5

inches mm5 1277 1789 22911 27914 35618 457

PRE7PRE9PRE11PRE14*PRE18*PRES6024ExtensionSet IncludesPRE5,PRE7,PRE11andPRE18(1each).

Table 4 - PRS Series Spacers (optional accessories)Spacer Model Thickness (each)inches mmPRS1 1 25PRS2 2 51PRS3 3 76PRS4SpacerSet Set includes PRS1,PRS2andPRS3(1each).

Table 5 - Maximum Additional Stack Height USingOptional PRE Series Extensions and PRS Series SpacersMaximum Additional Stack

J ack Model Height (dimension "X") Ea-,inches mm

PRAMA06014L 32 813 ~L::L; , ' XPRAMA06027L 11 279 :;;,>~t . ' "PRAMA10016L 21 533-PRAMA10027L 11 279

PRASA10016L 21 533PRASA10027L 11 279PRASA15016L 21 533PRASA15027L 11 279PRASA20016L 21 533PRASA20027L 11 279

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5.6 Load CapsA non-swivel load cap is included with the jack as standardequipment. A swivel load cap is available as an optionalaccessory. Refer to Table 6 for a list of load cap model numbers.Table6- LoadCaps

Load Cap Model NumbersJ ack Model Non-Swivel Swivel Load CapLoad Cap (optional accessory)(standard)PRAMA06014L 42208E PRTS60PRAMA06027LPRAMA 10016LPRAMA 10027L 42208E PRTS60PRASA10016LPRASA 10027LPRASA15016L 42208E PRTS150PRASA 15027LPRASA20016L 42208E PRTS200PRASA20027L

5.7 U-Ring Stacking Instructions (SeeFigure5)Locking U-Rings (optional accessories) allow positive mechanicalload holding of a lifted load. The U-Rings are placed around theextended cylinder and are available in four different lengths foreach Pow'r-Riser model.The jack is designed so the U-Rings are properly positionedon top of the lifting cylinder housing using mating locators andrecesses.Assemble the U-Rings on top of the cylinder housing, aroundcylinder rod with a one-inch thick [25 mm] steel U-Ring at thetop and bottom of the stack.Assemble aluminum ring or rings between the steel rings oncylinder.

~CAUTION: An aluminum U-Ring must never be, positioned on the end of a U-Ring stack.

The quantity of aluminum U-Rings installed depends on theU-Ring set being used. Refer to Table 7 for additional information.

Locators (onU-Rings and attop of cylinder)

Steel U-Ring

IMPORTANT: Follow all applicable work rules and regulationsin effect at your facility or worksite. The use of auxiliary stands,blocking or other additional work supports may be required evenwhen U-Rings are installed.

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Figure 5, U-Ring Stacking Arrangement

6.1 Maintain Oil Level inHydraulic ReservoirCheck hydraulic oil level every 30 hours of operation. AddEnerpac HF hydraulic oil when necessary. Oil level should beapproximately 1 inch [25 mm) below the reservoir top cover plate- with cylinder fully retracted and motor off.

Table7 - U-RingInformationU-Ring Size and Model Number U-Ring Items Included in Each U-Ring Set

J ack Model 1inch 3 inch 4-1/2 inch 5-1/2 inch 10 inch Set Model[25mm] [76mm] [114 mm] [140mm] [254mm] Number 2x 1x 2x 1x

PRAMA06014L PRU11 PRU13 PRU14 - PRU110 PRUS126 PRU11 PRU13 PRU14 -PRAMA06027L PRU11 PRU13 PRU14 - PRU110 PRUS137 PRU11 PRU13 PRU14 PRU110PRAMA10016L PRU11 PRU13 PRU14 - PRU110 PRUS126 PRU11 PRU13 PRU14 -PRAMA 10027L PRU11 PRU13 PRU14 - PRU110 PRUS137 PRU11 PRU13 PRU14 PRU110PRASA10016L PRU11 PRU13 PRU14 - PRU110 PRUS126 PRU11 PRU13 PRU14 -PRASA 10027L PRU11 PRU13 PRU14 - PRU110 PRUS137 PRU11 PRU13 PRU14 PRU110PRASA 15016L PRU151 PRU153 - PRU155 PRU1510 PRUS1526 PRU151 PRU153 PRU155 -PRASA 15027L PRU151 PRU153 - PRU155 PRU1510 PRUS1537 PRU151 PRU1510 PRU155 -PRASA20016L PRU201 PRU203 - PRU155 PRU1510 PRUS2026 PRU201 PRU203 PRU205 -PRASA20027L PRU201 PRU203 - PRU155 PRU1510 PRUS2037 PRU201 PRU2010 PRU205 -

6.0 MAINTENANCE


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Air Breather(under filter/regulator) Oil Fill Plug

Oil DrainPlugFigure 6, Oil Change

6.2 Changing the Oil (See Figure 6)Change the oil at least every 12 months.Note: The following conditions will require more frequent oilchanges: Rigorous duty, where oil temperature may reach 150 of

[60C]. A high humidity environment and/or extreme changes intemperature that can result in condensation inside thereservoir. Dirty or dusty environments that may contaminate the oil.Change the oil as described in the following steps:1. Be sure that cylinder is fully retracted and that the air line isdisconnected.IMPORTANT: The 5 gallon [18,9 liter] hydraulic reservoir holdsapproximately 4.2 gallons [15,9 liters] of oil when filled to theproper level with cylinder fully retracted and motor off. Disposeof used oil inaccordance with all applicable laws and regulations.2. Loosen and remove oil drain plug at bottom of reservoir.Allow used oil to drain into a suitable container.3. Clean and reinstall oil drain plug.4. Remove, clean and reinstall the reservoir air breather. It islocated on the reservoir top cover plate, under the air filter/regulator assembly.5. Loosen oil fill plug at top of reservoir. Slowly fill the reservoiruntil the oil level is about 1 inch [25 mm] below the reservoirtop cover plate. Use only Enerpac HF hydraulic oil.6. Reinstall oil fill plug.7. Remove the old oil filter and replace it with a new one ofthe proper specifications. Catch any spilled oil in a suitablecontainer.8. Raise and lower the cylinder several times to check forproper operation before placing the jack back into service.6.3 Air Line Filter/Regulator (See Figure 7)Every 30 hours of operation: Check the filter bowl for water. Drain any water if present. Inspect air filter element (inside filter bowl). Replace filterelement if dirty.

6.4 Ai r Li ne Lubr icato r (See Figure 7)Every 30 hours of operation, check the level in the air linelubricator and add additional lubricant if needed. Use an SAE 10[ISO 32] detergent oil or an approved antifreeze lubricant.Check for an oil drip speed of approximately 3 drops per minute.Adjust if necessary.

Air LineLubricator Filter BowlLubricantReservoir 1fl!'~-+11--Water Drain

Figure 7, Air L ine Lubricator and Fi l ter/Regulator

6.5 A ir Muff ler (See Figure 8)Every 30 hours of operation: Check the air muffler for dirt or debris. If clogged, replace themuffler with a new one of the same specifications.Note: Air muffler design and appearance will vary. On jacksequipped with a Gast manufactured air motor, the felt padsinside the muffler can be removed, cleaned and replaced.

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7.0 TROUBLESHOOTINGThe information in the Troubleshooting Guide (refer to Table 8) is intended as an aid to help diagnose and correct various possibleproblems that may occur.For repair service, contact your local Enerpac Authorized Service Center. Only an Enerpac Authorized Service Center should servicethe jack and its components.

Table 8 - Troubleshoot ing GuideSymptom Possible Cause Solution1. Sporadic cylinder Air trapped in hydraulic system. Cycle cylinder up and down several times to bleed trapped air.action.

Low oil level in hydraulic reservoir. Add Enerpac HF oil as required.Seal wear and/or other internal damage. Have jack inspected and repaired by Enerpac Authorized Service Center.

2. Noisy operation. Air trapped in hydraulic system. Cycle cylinder up and down several times to bleed trapped air.Low oil level in hydraulic reservoir. Add Enerpac HF oil as required.Air leaks in hydraulic system. Check all points where air might leak into system.Clogged or blocked intake screen. Have hydraulic reservoir and intake screen flushed and cleaned byEnerpac Authorized Service Center.Air trapped in hydraulic system. Cycle cylinder up and down several times to bleed trapped air.

3. Oil is overheating. Low oil level in hydraulic reservoir. Add Enerpac HF oil as required.Oil viscosity too high. Drain and refill reservoir with Enerpac HF oil.High pressure leakage at the pump. Have jack inspected and repaired by Enerpac Authorized Service Center.

4. Pump runs but will not Seal wear and/or other internal damage. Have jack inspected and repaired by Enerpac Authorized Service Center.pump oil.OR Control valve needs repair. Have jack inspected and repaired by Enerpac Authorized Service Center.

Cylinder moves butwill not lift load.5. Cylinder extends but Insufficient compressed air volume. Check air regulator setting. Increase volume of compressed air or increasewill not retract. size of supply air line to meet airflow and pressure requirements.

Internal pressure leaks, or leaking retract Have jack inspected and repaired by Enerpac Authorized Service Center.hoses.Internal relief valve setting or retract side Have jack inspected and repaired by Enerpac Authorized Service Center.relief valve setting too low.Defective over-center valve or defective Have jack inspected and repaired by Enerpac Authorized Service Center.secondary lock valve.Pump not developing enough pressure. Have jack inspected and repaired by Enerpac Authorized Service Center.

6. Pump does not run. Insufficient compressed air volume. Check air regulator setting. Increase volume of compressed air or increasesize of supply air line to meet airflow and pressure requirements.Moisture in compressed air. Be sure that compressed air is clean, dry and free of water.Frozen or clogged air muffler. Clean the air muffler. Be sure compressed air is clean, dry and free ofwater. Check lubricant level in air line lubricator. Use only SAE 10 [ISO 32)detergent oil or an approved antifreeze lubricant.Frozen or clogged air motor. Be sure compressed air is clean, dry and free of water. Check lubricant level

in air line lubricator. Use only SAE 10 [ISO 32] detergent oil or an approvedantifreeze lubricant.7. J ack is difficult to roll Low tire inflation pressure. Check tire inflation pressure. Add air if low. Pressure should be 90 psion wheels. [6,2 bar).

Wheel bearings need lubrication. Apply grease to wheel bearings. See Section 6.6.Wheel locknut out of adjustment. Loosen locknut until wheel rotates freely.

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EC DECLARATION OF CONFORMITYWe, ENERPAC, a Division of ACTUANT, located at

720 W James St., COLUMBUS, WI. 53925. U.S.A.,declare under our own responsibility that the below mentioned products:Enerpac Air-powered Pow'r-Risers of the following model numbers:PRAMAxxxxxx & PRASAxxxxxx.on which this declaration refers to are, where applicable, in accordance with the harmonizedEuropean Standards:

- EN982:1996. Safety of Machinery - Hydraulics,- EN983:1996. Safety of Machinery - Pneumatics,- ENI050:1997. Safety of Machinery - Principles of Risk Assessment,- EN-ISO 12100-1:2003. Safety of Machinery - Basic Terminology &Methodology, and- EN-ISO 12100-2:2003. Safety of Machinery - Technical Principles

as well as national standards and/or technical specifications:- ANSI B30.1:2009. Safety Standards for Hydraulic Jacks

and in accordance with the EC Guidelines of the:- Directive on Machinery: 2006/42IEC.

(And, as per Annex II of the Directive on Machinery),We point out that it is forbidden to put the above mentioned products into service until thefinal machinery into which these are to be incorporated has been declared in conformity withthe provisions of this Directive.

27th May, 2011 Arnold F. DeckerChief Engineer

EC2B-PRARevB

Power Riser Nuevo

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