HPT50 & 55 Series
Contents
1. 3 1 Check the chain 1 8 4 2a c Leak from piston carriage 1 Replace a broken chain 4 2a Take out 1 17 2 Check the shaft 1 12 and screw 1 21 Be sure the shaft 1 12 is fixed on pump body by screw 1 21 If shaft 1 12 is not fixed the chain will be damaged by handle operation If the chain and shaft have no prob lem continue to step 3 2 3 2 Replace valve assembly 1 42 Refer to step 1 5 4 Pallet Truck is leaking 4 1a b Leak from piston 4 1a Take out 1 17 4 2c Renew seal 1 32 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 19 5 Wheel problem 5 1a c Problem of steering wheel 5 2b Hit out shaft 5 1a Take off the wheel cap 5 2c Change load wheel 6 Change or add oil 6 1a g Change oil 6 1a Take out circlip B22 2 5 1c Change steering wheel 5 2a c Change load wheel 5 2a Take out spring pin 22 amp 23 amp 24 Page 20 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES 6 1c Take pump off of truck body 6 2a b Add oil 2a D l 6 2a Unscrew 1 27 6 2b Add oil 6 1g Pour in new oil PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 21 Three month maintenance schedule 1 Check oil level 2 Lubricate joints pins axles oushrods steering wheel bearings with good molybdenum type grease Ordering Replacement Parts Presto Lifts has carefully chosen the components in your unit to be the best available for the purpose Replacement2. Operation Before using the device the operator shall have Read and or had explained and understood the manufacturer s operating instructions and safety rules e Inspected the device for proper operation and condition Any suspect item shall be carefully ex amined and a determination made by a qualified person as to whether it constitutes a hazard All items not in conformance with Presto s specification shall be corrected before further use of the PowerStak During Operation The device shall only be used in accordance with this owner s manual Do not overload e Ensure that all safety devices are operational and in place Modifications or Alterations Modifications or alterations to any Presto industrial positioning equipment shall be made only with written permission from Presto Page 4 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES SAFETY ALERT SYMBOLS AND SIGNAL WORDS The safety of all persons operating maintaining repairing or in the vicinity of this equipment is of paramount concern This is a powerful machine with moving parts and is capable of causing personal injury if proper precautions are not taken Therefore throughout this manual certain hazards have been identified which may occur in the use of the machine and there are appropriate instructions or precautions which should be taken to avoid these hazards In some cases there are consequences which may occur if instructions or precautions are not f
3. Rocker Arm Oiler o q Oiler Inside Hex Screw Fork Frame Nut Pilot Wheel Spring q Spindle of Damping 1 ring dt DustRing p Spring o Hood tC Small Piston Rod 1 SteelBal i Big Piston Rod 1 DustRing o Ring o Cylinder Liner 1 ORn o U Rins dt Plug dt Copper Wash 1 Lever Plate Nutt Regulate Screw 1 Spring tC Orig o Valve Tappet 1 Copper Washer J1 Cupreous Sheath 1 JO Ring o Rockerarm t_ oier a Pn Oier fe Inside Hex Screw 1 Fork Frame f Nut Pilot Wheel 2 Page 8 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES No C72 C73 C74 C75 C76a C76b C77 C78 C79 C81 C82 C83 C84 C85 C86 C87 C89 C90 C91 c9 C93 C94 C95 6 C97 C98 c99 CH C100 1 o U A N 3 Description Sheath Bolt Washer Bearing Single Fork Wheel Double Fork Wheel Nog of Fork Wheel Shaft for Double Wheel Elastic Pin Elastic Pin Frame of Fork Wheel Shaft of Fork Wheel Elastic Pin Short Shaft Elastic Pin Shaft Straight Tappet Elastic Pin Long Shaft Pin Retaining Ring for Axle Joint Dust Cover Retaining Ring for Axle Bowl Nut Half Circle Bearing Steel Wheel Steel Ball Steel Ball Base Spring Screw Copper Washer ninjo O lt Prior to September 2008 Figure 2 Lift Exploded View 32 33 34 35 L 67 E e 37 7 27 1 A 37 7 37 5 37 8E realy 13 141 12 25 14 3 1
4. and pump 2 Take out screw 1 21 are the same Hit out shaft 1012 sie mene pases gA 4 Insert chain through 5 Connect chain with acti ake out the chain from handle Hit in shaft 1 12 torii shaft 1 12 ue re 6 First put spring pin 1 7 Take out steel axle from 8 Depress pump handle about 10 times 21 in pump Then put in pump while keeping fingertip on Lower Position to screw 1 21 release air from pump Page 6 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES C72 C73 C74C75 C76a C76b C77 C70 C71 C94 c69 After September 2008 c98 C97 c96 C95 CH C100 C99 Figure 1 Lift Exploded View 1 A OS on o oO o o O Ooo PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 7 c25 Bearing f es CS ear fen Si 626 Base Frame f feos sen Sid 630 Retaining Ring for axe 1 fest Pinuever fr csa sterne 1 c35 Seat of Damping vae 1 es Pe CO After September 2008 Table 1 Lift Items C38 Spring C39 Spindle of Damping U Ring C41 Dust Ring C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C5 C53 C54 C55 C56 C57 A oO Spring Hood Small Piston Rod Steel Ball Big Piston Rod Dust Ring O Ring Cylinder Liner O Ring U Ring Plug Copper Wash Lever Plate Nut Regulate Screw Spring C59 6 61 Valve Tappet oO Copper Washer q o Cupreous Sheath Q oO N C63 C64 C C66 C68 C69 C70 C71
5. parts should be identical to the original equipment Presto Lifts will not be responsible for equipment failures resulting from the use of incorrect replacement parts or from unauthorized modifications to the unit Presto Lifts can supply all replacement parts for your lift With your order please include the model number and the serial number of the unit You can find these numbers on the name plate This plate is located within the scissors mechanism To order replacement parts please call the Presto Parts Department Parts are shipped subject to the following terms e FOB factory e Returns only with the approval of our parts department e Credit cards preferred except parts covered by warranty e Freight collect for truck except parts covered by warranty Freight prepaid and invoice for small parcel shipments except parts covered by warranty e The warranty for repair parts is 30 days from date of shipment Parts replaced under warranty are on a charge credit basis We will invoice you when we ship the replacement part then credit you when you return the worn or damaged part and we verify that it is covered by our warranty Labor is not covered under warranty for Parts orders Presto Parts Department 50 Commerce Way Norton MA 02766 Telephone 800 343 9322 FAX 888 788 6496 Email service PrestoLifts com www PrestoLifts com Page 22 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES PARTS Standard par
6. 8 17 16 14 2 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 9 ia 15 31 20 37 mo ig o e A Description Table 2 Lift Items Description Handle assy Pump assy Spring pin Bearing Spring pin Pressure plate Circlip Wheel shaft Washer Steering wheel assy Nylon wheel PU cover cast iron Rubber cover aluminum PU cover aluminum Circlip Arm pin Left arm Copper bush Copper bush Copper bush Copper bush Copper bush Spring pin Push pod Spring pin Exit roller Spring pin NPB NNNAPNNNRFPNNNNNNNNRPRPRPNFP NF PF Page 10 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Shaft Load wheel frame Spring pin Shaft Shaft Single load wheel assy Bearing Washer Dust ring Circlip Load sheel Washer Bush Wheel plate Nut Shaft Tandem load wheel assy Circlip Long shaft Fork body Circlip Entry roller Shaft Cap of bearing 6 2 6 6 2 4 4 2 2 2 e NN APEN Prior to September 2008 Figure 3 Pump and Handle Exploded View PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 11 Prior to September 2008 Table 3 Pump and Handle Items Description Description Stop rubber Spring pin Handle Spring pin Spring pin Lowering level inger tip Linkage Chain Chain rod Pressure roller Shaft Shaft Spring pin Spring plate Spring cap Spring Plunger assy Seal DH18 Seal DH18 Screw Spring pin Pump body Washer Screw pl
7. Presto worldwide material handling and ergonomic solutions HPT 50 amp 55 Series Hydraulic Hand Pallet Trucks Operating instructions spare parts list service manual Model Number Serial Date Placed in Service IMPORTANT READ CAREFULLY BEFORE INSTALLING OR OPERATING LIFT Part orders are subject to a 50 minimum charge September 2015 This manual was current at the time of printing To obtain the lat est most updated version please contact Presto Lifts Customer Service Department or go to our website www PrestoLifts com you will find a complete list of current owner s manuals to print Page 2 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES CONTENTS Handle Assembly Instead rE EN NS 6 FIGURE 1 LIFT EXPLODED VIEW after September 2008 cccsscssseccsseeescrsesseecseesees 7 TABLE 1 LIFT ITEMS after September 2008 ccsssccscssscsssseescsseseescseesesseeesesseseeeeeees 8 FIGURE 2 LIFT EXPLODED VIEW prior to September 2008 cscsscscssecsersrerecsecsecsers 9 TABLE 2 LIFT ITEMS prior to September 2006 3 icccsctadedsensasidusxiassdadnadasascaleasianayaneslantis 10 FIGURE 3 PUMP AND HANDLE EXPLODED VIEW prior to September 2008 11 TABLE 3 PUMP AND HANDLE ITEMS prior to September 2008 0 00 0 ccceceeeseeteeeeneeeees 12 ANSTO cs a 13 Service Manual ci e raaraa ence AEAEE ea ded EE 14 The Principle of Hydtaulic PUMP cies ccccassacesact
8. ceadoaesjacgesneniersantrtadseehseasecantaearsenvatenutonaddeacss 15 Troubleshooting serscneos nae e E e A RR TR 16 1 TeK Wr HOU UE ie n a ERE 16 17 2 Lift drops automatically sand S E R E 18 3 Lift will not dOP crer inor RD PR reni neroa enue E A KN TEER anat 19 4 Truck is leaking eierne n E E EEE eT E ER 19 De Wheel PTODIEM NA O E NE AEAN 20 Os Chance or Add Qil syecsseiii dani adia pd anda apa 20 21 Tiree Month Maintenance Schedule sorsara aaa Mars 22 ORDERING REPLACEMENT PARTS aussi US S E ii Sin dE 22 RESTOCKING POLICY erevernrentrer Mrmr rier renee ps 23 WARRANTY aeaea cess cease DT EER 24 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 3 Responsibility of Owners and Users Inspection and Maintenance The device shall be inspected and maintained in proper working order in accordance with Presto s owner s manual Removal from Service Any device not in safe operating condition such as but not limited to excessive leakage missing rollers pins or fasteners any bent or cracked structural members cut or frayed electric hydraulic or pneumatic lines damaged or malfunctioning controls or safety devices etc shall be removed from service until it is repaired to the original manufacturer s standards Repairs All repairs shall be made by qualified personnel in conformance with Presto s instructions Operators Only trained personnel and authorized personnel shall be permitted to operate PowerStak Before
9. ift 1 4a c Adjust the valve 1 4a Release screw 1 40 1 1 Release the air in pump Put the finger tip to lower position Pump handle about 10 times 1 4b Screw nut 1 39 in a circle circle along counterclockwise direction is 5 E 1 2 Check the chain 1 8 HA Check chain 1 8 if it doesn ot cross the shaft 1 12 please refit it 1 4c Check if it can be lifted If it still does not lift move to step 1 5 If the truck lifts 1 3 Check symbol 1 Lift the truck to the top postiion Symbol on handle 1 3 and pump 1 5 must be the 2 Put the fingertip to 1 4c position screw nut 1 39 seme conuterclockwise until the Hand Pallet Truck starts to lower 3 Screw 1 40 Page 16 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES 1 5a e Replace Valve Assembly 1 42 1 5d Screw out copper brush of valve 1 5a Place the truck on its side assembly 1 42 1 5b Hit out spring pin 1 14 and take off lowering level 1 38 ae 1 5e Take out valve corn of valve assem bly 1 42 1 Install new valve assembly 1 42 including copper brush valve 2 Fit spring pin 1 38 3 Repeat step 1 4 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 17 2 1d Take out piston cylinder 1 31 2 Lift drops automatically 2 1a h Renew Seal 1 33 2 1a Take out circlip B2 22 2 1h Pour in new oil Page 18 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES 3 Lift will not drop
10. le or property resulting from any breach of warranty or the operation or failure of this product Presto Lifts makes no representation that this product complies with local state or federal safety product standards codes Should this product fail to comply in any way with those codes it shall not be considered a defect of materials or workmanship Presto Lifts shall not be held liable for any damages resulting from noncompliance It is the dealer s responsibility to exercise this limited warranty This limited warranty is provided to the original purchaser defined as the original end user and is nontransferable This constitutes the complete and final agreement involving Presto Lifts and limited warranty obligations for products Page 24 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES MANY NEEDS REQUIRE MANY OPTIONS LET PRESTO MEET THOSE NEEDS Call Presto Sales for stock or customized lift inquiries 800 343 9322 Email sales prestolifts com qs a i E EL oer
11. n the machine 2 Do not operate the Hand Pallet Truck until you have checked its condition Give special atten tion to the wheels handle forks lift and lower con trol Do not operate damaged or faulty trucks Do not attempt repairs unless you are trained and authorized to do so 3 Operate Hand Pallet Trucks only from the designated operating position Never place any part of your body in the lifting mechanism or under the forks or load Do not carry passengers 4 Do not handle unstable or loosely stacked loads Use special care when handling long high or wide loads to avoid losing the load striking by stand ers or tipping the trucks 5 Do not overload the truck Check capacity plate for carrying capacity information Overloading may cause truck to perform incorrectly 6 The capacity of the Hand Pallet Truck as sumes an evenly distributed load with the center of the load being at the halfway point of the length of the forks T Make sure the length of the forks match the length of the pallet Using a pallet truck where the forks are longer than the pallet will damage the truck if the pallet truck is pushed through the pallet and the forks are under a second pallet behind the one being lifted When lowering the load make sure the area beneath the pallet is clear 8 Observe traffic regulations Yield right of way to pedestrians Stop at cross aisles 9 Hand Pallet Trucks are for general operation on level fla
12. ollowed Below are the symbols and signal words along with their definitions referenced from ANSI Z535 4 Product Safety Signs and Labels Safety Alert Symbols These are the safety alert symbols They are used to alert you to potential physical injury haz ards Obey all safety messages that follow this symbol to avoid possible injury or death For use with DANGER signal word Red Background For use with WARNING signal word Orange Background For use with CAUTION signal word Yellow Background Signal Words The meaning of different signal words as defined by ANSI Standard Z535 4 indicates the relative seriousness of the hazardous situation DANGER indicates a hazardous situation which if not avoided A D A N G E R will result in death or serious injury Red Background WARNING indicates a hazardous situation which if not avoided could result in death or serious injury Orange Background CAUTION used with the safety alert symbol indicates a haz ardous situation which if not avoided could result in minor or moderate injury Yellow Background NOTICE NOTICE is used to address practices not related to personal injury Blue Background SAFETY SAFETY INSTRUCTIONS or equivalent signs indicate safety INSTRUCTIONS related instructions or procedures Green Background PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 5 Handle Assembly Instruction 1 Make sure the symbol on the handle
13. t hard surfaces 10 It is recommended that the operator wear se curity shoes when using the Hand Pallet Truck Failure to follow these instructions may cause serious injury to the operator or others PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 13 HPT 50 amp 55 Series Service Manual Page 14 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES The principle of hydraulic pump See figure 1 1 Lifting 1 Put finger tip 1 6 on Lifting Position Lift handle hydraulic oil flow from oil tank through channel A Ball Aopen Oil flow to piston through channel B 2 Press handle Ball A closed Ball B open Oil flow to sylinder from piston through channel B and channel C Cylinder lifted Truck lifted Lower 1 Put finger tip 1 6 to Lowered Position 2 Part 1 39 move at D1 direction Ball A and ball B open Oil flow to oil tank from cylinder through chan nel C ball B and channel A Transport 1 Put finger tip 1 6 to Neutral Position Part 1 39 move at D1 direction Ball Aopen 2 Lift handle Oil flow to piston from oil tank through channel A 3 Press handle Oil flow to oil tank from piston through channel B ball A and channel A Channel B A A Channel C io OR Ear a api mia cot eee ea te all mae Figure 1 1 Cut away pump diagram PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 15 Troubleshooting 1 Truck will not l
14. ts may be returned with a 20 restocking fee Modified or custom engineered parts are not returnable Unfortunately due to potentially concealed damage all sales of electrical assemblies are final QUALITY ISSUES Should you feel there is a quality problem please contact the seller to ask questions and gather information on how to rectify the issue Presto Lift Inc reserves the right to determine potential credits as a result of factory defects based on its inspection of the merchandise GENERAL All products shipped from our factory have passed Quality Assurance inspection and testing The carrier of choice has signed for and accepted the product in new working condition The customer should inspect to ensure it is not received damaged has no concealed damage or is not incomplete Parts orders are determined to be complete based upon Presto Lift Inc inspection sheets and carrier shipping weights PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Page 23 Presto Lifts Limited Warranty Policy Presto Lifts warrants all of its products against defects in the welded structural frame and if ap plicable scissor legs from faulty material and workmanship for a one 1 year period from the date of invoice date All other components have a limited warranty against defects in faulty material and workmanship for a one 1 year period from the date of invoice date of invoice and 30 day limited warranty on labor Please note that prior authori
15. ug O ring PNNPRPRPRPRPRP PRP RP RP RP PRP RP RPP PRP PPP BR Page 12 PRESTO OWNER S MANUAL HPT 50 amp 55 SERIES Seal UN32 Screw Pump cap O ring P62 Ball Washer Circlip Cylinder O ring P31 Seal UN32 Pin O ring O ring O ring Activator Bolt Nut Spring pin Valve assy O ring Washer Bolt PU washer PU washer Overload valve assy PRPRPRPRPRPRP RPP PRP PRP RPP PRP RPP RPP RPP PB Instruction Raised Position Depress the lever and pump handle until pallet has reached the desired height A clearance of 1 be tween the floor and pallet is usually sufficient to move the load Do not lift load with one fork or extremity of forks Neutral Position The neutral position is found between the raise and lower position This neutral drive position disengag es the lifting mechanism making the handle free from hydraulic resistance and becomes almost weightless yet the forks retain their raised position Always use the neutral position when moving a load Lowered Position Pull the lever up to lower the forks The lever is spring loaded for lowering only therefore when you release the lever it will automatically return to the neu tral position For safe operation of Hand Pallet Truck please read the following instructions 1 Do not operate the Hand Pallet Truck unless you are familiar with it and have been trained and au thorized to do so Read all warnings and instructions in this manual and o
16. zation from Presto Lifts is required on all warranty work There are no implied warranties of any kind more specifically there are no warranties of mer chantability or fitness for any particular purpose Presto Lifts sole warranty shall be as set forth in this limited warranty Presto Lifts will elect to repair or replace a defective component without charge if any compo nents should become defective within the limited warranty period Proof of purchase is required for warranty The charge for shipping the defective component is the responsibility of the buyer and must be accompanied with an RGA number The shipping charge to return the component to the buyer is the responsibility of Presto Lifts Inc This limited warranty does not cover labor expense for removal or reinstallation of components after thirty days This limited warranty shall not cover among other things damages resulting from foreign matter or water failure to provide reasonable and necessary maintenance and if ap plicable use of product while charger is plugged into an AC outlet or failure to follow operating instructions The limited warranty is not valid for damage resulting from negligence accident unreasonable use abuse or misuse exceeding data plate capacities or altering the product without Presto Lifts authorization Presto Lifts expressly disclaims and excludes any liability for consequential incidental indirect or punitive damages or financial loss to peop
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