Operating Instructions Booklet
Contents
1. DN E i m L ROR AS el ECJ4 1tw 21 Minimum Net Power head room weight falls m m 5 4 56 98 58 188 EM 88 NN tse 99 Cae 59 4 58 eb CT 7 1 Major Dimensions mm weight kg CJ40200 1 Values marked will differ in accordance with the height of lift 2 The specifications in the above table are subject to change without notice Electric Chain Hoist with Motorized Trolley Cer 7 utt Minimum radius for curve m Traversing speed Breadth m min of Beams b mm 20 10 24 12 E 32 b 2 280 240 240 670 835 ao o b 2 b72 33 121 1 Values marked X will differ in accordance with the height of lift 2 The specifications in the above table are subject to change without notice 3 The specifications in the are for electric trolleys with half speed 4 Please refer to the beam drawing on the right for dimensions b and b 5 Please refer to page 1 for the specifications of the hoist EC4 Electric Chain Hoist with Geared Trolley or Plain Trolley 4 250kg 500 kg It ECJG4 Bre2. aqqny joeds 328970350 198203 O9Ssto3 UNZZEOES 888 2 L9Stoan jexsebD 9582 ean 1 1010 YOWMS WIT jeg OSE N L piouejos eseq exeig 8S7030 Buds exeig v L 1 5 exeig Oo9svo3anr HN2ZvOcC9 Ze 22 008 8 222028 8 777009 jeg jeg 1 916 sequin 30 79 41080 Sou 0 8207030 ___ ozeovoso 050207039 0290c07233 B o Zeovo3nr zeovaar E _ 210901 5 410901 595 05209037 2207030 O Zeovoad om YORU 25 OWEN Wed 31 EGT5 5 JGTS001T 45 5002 15175006 7 785 JGT5008TSN JGTSOOSTSN PWM20 GGE50125N JGESO019 1 Pisnwheelassmby 2 2 _ Gear wneel assmbiy 2 6 H Stay pipes Stay pipes B Piain side plate
3. 3 3g D Loosen the Nut with spanner 2 Screw in the Adjusting screw with a hexagon wrench N B Screw the Adjusting screw in till the AC solenoid plunger touches the AC solenoid coil and next loosen the Adjusting screw to obtain the necessary clearance Sr lt gt CENA Hu 6 2 N Thunu r 2 38 45 4 ZA MY 3 After adjusting clearance A to 2 5 mm 4 mm for ECC4 tighten the nut The permissible limits of use of the Brake linings are as shown in Table 11 NI S P rs NS 7 2 ENT 2 Table 11 Brake lining Brake wheel Standard dimension t 7 D 972 Permissible 2 Pe oen 4 22 CIRCUIT DIAGRAM Remove the 093 switch cover Then connect the lead wire referring to the COIL JOINT instructions correctly The unused lead wires get broken sometimes when they are accidentally caught in the brake Bind them together and make sure that they do not get caught in the brake Be sure to turn off the power source before changing the lead wire 4 250kg 500kg 1t 2t Suspended Type 1 Speed electric chain hoist R Power White Source Yelow Yelpw Green ald
4. Rar EC S620vo3n 0 viOvO3r 0 600v0sr 2007930 9007930 39895079239 SSOvO39 0 8S0t23Q 399909030 eS07930 S620v230 10 530 910 0 0107930 6007930 LOOv23G 00 9038 2007930 cOOQvOa3r L 28 HNZZSOO9 52016 UNZZSOOS HNZZcOcS9 HNZZLOZ9 YNZZv009 1Sc8S00tHW 0 1720 OLOPHH 40 SLOUHH 18 0 17600 LOVHH 8e03 __ __ _ 560398000383 _ 5030800992 MXOL 1 XOLL mw ___ 0 jwgotvosn 1620019090 1000190 200103 13001908 8 77 60v23d 8 229028 HNZZEOE9 8 2220298 UNZZSOO9 17200 LOVHH 172405 18vOSOOtHH ATDISLLE nstie X800 MNSLIE XOLL MXOLLD HNZZSOOS 9 226069 8 221029 22 009 JS28S00PHM Mac Lt Z0S00vHH Lt Z00 LOUHH SOLvO3n Leovoad S3s80vaaa _ 28070
5. Code number DEC4001 26 4 ECTA ECCA 250kg 500kg t 0p930 vLOvVO3 9907030 L90t230 26807033 09502033 OvSOvO33 21 1907930 a9sssordar ssoraar cSOv23r LvOE O39 OrOco38 OSEOvO33 S2620v233 29107239 9iOr2a3a 910vaar vrovaar te oc 96007033 600vO3n Ux 8007930 SOOv030 2007030 9007030 8sSotaar 8S0vu039 32389507039 9907030 207930 s E n 8507930 1 0 308980 239 56207930 S10t038 viOvO3Q OLOvP23G
6. Operation Voltage 1 Rated Load 1 25 x 4 E M Contactor Transformer AN BS Push Button Switch SOL Solenoid N30 F Fue TSFSHB A DS DisconnecingSwih _ TSK 511B PR Negative Phase Protector PR N __ 5 NAME 23 4 250kg 500kg 1tw 1t 2t Motorized Trolley 1 Speed electric chain hoist 7010 P es Bue Worm DEDE DEDA 8 8 ELS p Green Power Source Operation Voltage Rated Load Lifting Motor kW Traversing Motor kW Tu E M Contactor HMU12 9 E M Contactor FMC O u m QR RH HMU 12 rg Transformer TF 304N Push Button Switch COB83 Limit Switch LS 51 1 Solenoid N 350 Fuse TSF 511B 2A Disconnecting Switch TSK 5118 Negative Phase Protector PR 4N Power Source Cable VCT 1 25mm Contro Cablo 1 25mm Trolley Cable 1 25mm Connecting Cabla Power 1 25mm Connecting Cable Contro 1 25mm Black ECT4 250kg 500kg 1tw 1t 2t Suspended Type 2 Speed electric chain hoist RE Power s Source Ba AC3ph Power Source 50Hz Operation Voltage AC
7. feel Geersice piste 11 Spacer washer meet Prion shaft metal 49 _ uq we EET ag UH EE Handwhee Jof ESI GEHE EN NM E WES iemeis sero 6 21 32 Name Remarks BEM6001U LEMBOO1U BETSO02USN 500206 Plain side plate BET5003USN LETBOO3USN Part Number Stay bots BETSOOQSN 50098 Stay pipes 108 Stay pipes B BET5010BSN 5015 216 me 16 mmm Spacer washer 7501 156 omemme 7 teweom i ee MNT Suppor for motor flange 5005 1 5005 EG Gearwheel assembly BETSOOSTSN LETSOO8TSN E7 Plain wheel assembly BETSOO7TSN LET5007TSN P E48 BETSO46SN 3 Base plate DEM6063USN Motor 6 6 E501 5018 a ee O _________500 O E502 Ball bearing Retaining ring Ctype Esos E534 Gasket tor E62 E536 Electromagnetic c
8. 9 Connecting the Hoist to the Motorized trolley 11 Connecting the Hoist to the Trolley 12 Setting the Trolley onto the beam 13 Connecting the Power source cable 14 Connecting the Quick coupling 15 Inspection After Installation 16 INSPECTION amp 0 00700 17 INSPECTION BEFORE 17 MONTHLY AND ANNUAL INSPECTIONS 17 INSPECTION POINTS EIS TES 18 Hook amp Chain Inspection 20 Care after Installation 21 ADJUSTING THE BRAKE 22 Adjusting the electromagnetic brake 22 CIRCUIT DIAGRAM ep soa race 23 A rA da TERN VN OS 23 POWER SOURCE CABLE SPECIFICATIONS 26 STANDARD SPECIFICATIONS Hook Suspended Type Electric Chain Hoist
9. Electric Chain Hoists N H Models ECA ECT4 and ECC4 Trolleys Mechanical Joining Type Models EET6 EGT5 and EP T5 Operating Instructions Booklet Thoroughly read this operating instructions booklet before operating the trolley and electric chain hoist Carefully store this operating instructions booklet after reading it This operating instructions booklet contains important information that will be necessary when inspecting and maintaining the trolley and electric chain hoist The hoist operator must receive this operating instructions booklet The hoist operator must read this operating instructions booklet Customer s notes Date Purchased N B The above information will be required when purchasing spare parts and when making inquiries Copy them from the name plate on the hoist and save them for future reference PREFACE NITCHI products are made of the best selected materials and processed through up to date streamlined production facilities by skilled NITCHI engineers under severe quality control Tested in are accordance with our own standards and a rigid final inspection before leaving the plant are carried out on the NITCHI products to assure absolute safety dependable and satisfactory perfomance WARRANTY NITCHI products are guaranteed to be free from any defects in materials or workmanship If any part or parts proves defective within six months from the date of purch
10. 5 uid jexyonq quiesse jexonq aed Buunoes 160 S80 780 280 m apso sjuauoduoo syuauodwwoo eour2ar3 JOON sequin ued OWEN 29 2 0 1 liy veeeZanwn becez Onw Av2 O OW3 90 6939 saqe juepued jo pue usnd jo 934857993 34857930 892930 1982030 L9Svo3r 9 O9Svo3r O9St23Q 1 16 51 HNZZVOC9 HUNZZEOES SZOxOLA oZESPos0 ZES7030 0 SGx SN890 0 SS8x9na9 soos so 800 a Ep reel cus Jp cw c co Jp k o c 9 o HNZZvOZ9 29029 22 9 85225029 HNZZVOZ9 jeg nune vereri rt m Pd dq mg osnJ jo ejos 401261002 oeuDeuo J29 3 Joe US JOUSEM 1814 sie 10 NtTOE 31 Av2 0 9WJ YAS jquiesse juepued UNOS Jexse6 19402 J0 29uuo
11. person in charge of the hoist Always check the following safety procedures when inspection and maintenance work are carried out on the hoist INSPECTION BEFORE USE While the hoist is not under a load confirm that the whole length of the load chain is well lubricated When the load chain requires lubrication be sure to give the contact points between the links extra coatings of machine oil The load chain must not be deformed and elongated and it must be free ol twists and kinks Check especially carefully when the hoist lifts on two or more falls of load chain The hooks must not be elongated and deformation must be within the limits indicated in Table 9 The safety latches must all be in good condition and moving smoothly The pendant push button switch must function properly and smoothly While the hoist is not under a load confirm that the limit switch and brake systems are functioning correctly The trolley and or crane must be free of faults that prevent smooth and safe operation MONTHLY AND ANNUAL INSPECTIONS The components of the hoist will eventually wear from use Tables 6 and 7 give inspection points that are essential for insuring a long and safe lifttime of the hoist MONTHLY INSPECTION Inspect the hoist once a month and keep a record of all inspections and repairs on file ANNUAL INSPECTION Check all sections of the hoist especially carefully once a year and keep detailed records of the inspections and repai
12. gear box section of the Motorized trolley is disassembled add an extra coat of heavy duty grease disulfide molybdenum grease to the gears The gear box section normally does not need to be regularly lubricated Gear wheel Paint the gear teeth section of the Gear Pinion wheel and Pinion with cup grease Circuit breakers D Always install a circuit breaker X The circuit breaker must be exclusively for the hoist and independent from other machinery 2 Select an adequate capacity circuit breaker from Table 3 Table 3 Circuit breaker Type of hoist Capacity A 04 0 5 Hoist with 0 1 0 4 0 13 0 5 0 971 1 0 23 0 9 0 28 1 1 motorized trolley 1 1 1 3 0 27 1 1 0 33 1 3 Hook 0 4 0 5 suspension 0 1 0 4 0 13 0 5 hoist and 0 9 1 1 hoist with 0 23 0 9 0 28 1 1 geared or 71 13 plain troliey 0 27 1 1 70 33 1 3 Single phase The values In the are for 200 to 240 volt holsts Power source cable D With electric chain hoists that use the electrical cable power feeding method always be sure to use the appropriate sized cabtyre cable tough rubber sheathed cable 2 Use a larger size cabtyre cable when the cable length is long and when there is a possibility that the hoist and the motorized trolley will be operated together at the same time 3 Please refer to Table 12 for the Specifications of long cabtyre cables _Adjusting the Trolley width
13. limits of the following tables Hooks Measure dimension A of the new hook with a slide calipers and write it down for future reference The hook must be replaced immediately when one of the following limits are exceeded When deformation is visually noticeable elongation twists cracks etc When the limits of Tabte 9 are exceeded and when dimension has worn down more than 9596 When dimension A differs from the above recorded value of the new hook Table 9 Top hook a Bottom hook dimensions in mm Load chain Measure the sections of the load chain that come into contact with the load sheave with a slide calipers Replace the load chain when the limits of Table 10 are exceeded The whole load chain must be replaced even if one link is extensively worm or deformed Table 10 Standard Limit P mm 10 links mm dimensions in mm 10 links Care after Installation NEVER attempt to disassemble or readjust o the Friction clutch O L P The Friction clutch will malfunction when it is incorrectly adjusted Friction clutch O L P The hoist is equipped with a friction clutch mechanism which will slip and cause the motor to run idle when the hoist is overloaded The friction clutch is adjust before the hoist leaves the factory and will normally not require further adjusting Emergency stop device During an emergency depress
14. of handwheels Well lubricated and rotating smoothly Geared Trolleys Hand chain No excessive elongation and deformation that can prevent the smooth meshing with the hand chain No flaw crack and excessive wear Well lubricated No backtash in the gears and bearings Reduction gear section Brake mechanism Stops smoothly without coasting too long Motorized Trolleys No breakage and damage of the rubber covered cables and no disconnection Power source cable and pendant control cable Motor No humming and overheating Insulation resistance exceeds 2 M by DC 500 volt Megger insulation resistance TEST RUNNING AFTER PERIODIC INSPECTION Tabie 8 Test points Check points Operate the hoist and confirm that it runs smoothly Limit switch function First test without a load Next test with a load within rated capacity Test running with a load Check for noise and vibration when hoisting and lowering within the rated capacity Check the amount of the brake slippage Over loading test Test run with a 125 overload 19 Hook amp Chain Inspection Repeated use over long period of time will cause the hooks and load chain to wear or elongate and corrosion and or cracks may arise depending on the place and method of use The hooks and load chain are vital components of the hoist that must be within the permissible
15. the mushroom shaped Emergency stop button the topmost button on the pendant push button switch to immediately stop the hoist and trolley When depressed the Emergency stop button will automatically lock and cut off the electricity After the emergency the Emergency stop button can be reset to its normal position by turning it 21 ADJUSTING THE BRAKE The brake must be adjusted only at a NITCHI Service Shop or by a qualified person with the appropriate knowledge The power source must be turned off before the brake is adjusted There must be no load on the hoist when adjusting the brake Adjust the brake after lowering the hoist to the floor 296 0 Always test the electromagnetic brake system before operating the hoist When the hoist has been in service for a long time the Brake linings Brake wheel will eventually wear and the braking torque will become unstable Test the hoist by lifting the load a little and stopping Repeat this operation 2 to 3 times Adjust the brake system when the load slips down 5 to 10 during the test Adjusting the electromagnetic brake zs Remove the Switch cover The structure of the Electromagnetic brake is as shown in the drawings on the right When clearance exceeds 5 mm over 8 mm for ECCA adjust the Electromagnetic brake as follows so that clearance A becomes 2 5 mm 4 mm for 4 gr Man He DN 4 x D
16. unit or carry out hook and sling connecting operations Inspect the unit before operating it and carry out periodical inspections 2 IMPORTANT The following warning and safety procedures are essential for avoiding possible bodily injury and property damage 2 1 Basic Safety Procedures WARNING NEVER lift more than the rated load marked on the hoist NEVER use the hoist to lift support or transport people aps NEVER lift or transport loads over or near people On was read the operation and safety instructions 2 2 Safety Procedures Prior To Use A WARNING ALWAYS the operator of the hoist must be a person who is completely familiar with all safety and operation procedures ALWAYS check the hoist before use and confirm that the load chain is well lubricated ALWAYS check the brake before use ALWAYS chack the safety latches to see if they work properly Broken and missing Q safety latches must be replaced immediately ALWAYS use genuine NITCHI parts and chains NEVER modify the hoist NEVER use modified or deformed hooks NEVER use a hoist when malfunction unusual performance damage or extensive wear are found NEVER abuse the over hoisting over lowering limit switch mechanism by using it regularly NEVER remove or obscure the warnings and nameplate on the hoist Safety Procedures During Operation A WARNING ALWAYS set the load properly in the hook ALWAY
17. 3 60r030 60149030 9 uo aqe ureu eui 01 2 00 1 7930 8607030 L 00L _ 93 02018 HN2290c9 HN2290c9 HNZZE OE9 222029 54229009 1720 GLObHH lvZO0SLOPHH MSLLE oar MXOL LY oar MBOLYOSE 601 23 SOLv93nr 230017936 10000993 200019230 8607030 35807930 805 2E YNZZS009 62014 HNZZS009 8 272029 22 009 oar 1 0 00 19200 NSLLE XSL1 E939 XSL 12528 29 XOLLP CT 8116239 511 033 11 039 1 99 MZOLvVO3n M201 703 SOLvO30 L 00t 930 60t23Q 53 c80v93d Bun ed jeg Buneaq jeg jeg dois 181109 Buds 101 Aiquasse 419 25 do 404 Ajquiasse Ajayes Jepjou 29 INU 9 quiesse yooy woyog Ajquesse xoou doy Wed Guunsas dojs uid dojs 2 aerd dojs
18. Adjust the width between the trolley wheels as follows D Remove the Hexagonal nuts and remove the side plate 2 Adjust the width by increasing or decreasing the number of inner spacer washers Refer to Tables 4 and 5 for the appropriate combination of inner and outer spacer washers Tighten the Hexagonal nuts for the Stay bolts Confirm that the Top holder is positioned directly under the center of the trolley beam Incorrect installation of the Adjusting Spacer washers Side plate Number of Spacer washers EET6 Table 4 250kg 11 BEAM SIZE IPE 2 Quantity and location Number of Spacer washers 5 5 Table 5 Quantity and location A BEAM SIZE mm a ola e o s e 17 0 e 17 17 16 56 58 64 0 1 2 3 3 4 6 re 8 9 9 11 10 4 13 12 T m Electric chain hoist A Connect the electric chain hoist to the motorized trolley as shown in the drawing and be sure that the direction of the electri
19. Button Switch _ COB82 LS timtSwth 1851 C Condenser 35s F 2x70 uF 1 2 lt 5 4 4 n m b E Fue TSEsHB DS Disconnecting Switch TSK 511B 5 NAME __ TYPE w POWER SOURCE CABLE SPECIFICATIONS Motorized trolleys are supplied with 1 M long power source cables and manually operated trolleys are supplied with 5 M long power source cables Please select the appropriate sized cable from Table 12 when lengthening the power source cable Table 12 Type of hoist Rated load Cable length 10 20m 30m 40m 1 Speed gina trolley i The 1 25mm standard power source cable 1 Speed can be used for lengths up to 50 meters 1 Hook plain trolley 1 1 suspension 11 21 i hoist and 250kg i 1 hoist with 2 Speed 500kg 1tw i geared It 2t i i i 4 Single 500kg 2 0mim Phase 1 standard Only use genuine NITCHI spare parts When ordering spare parts specify the model capacity serial number code number and the quantity X1 specify the height of length 3X2 Refer to 9 10 How to use the spare parts table Model 4 Rated load 4 250kg 500kg
20. ETHOD amp TROLLEY WIRE METHOD Connecting the Quick coupling Disconnecting and Connecting the Quick coupling Tightening cap Disconnecting Loosen the Tightening cap Remove the Fastening screws from the Connector cover Slide the Connector cover gasket and Connector cover out of the way Disconnect the Plug Plug housing Connector cover Pull the Plug Plug housing out while Pull the Plug Plug housing out while pressing the 4 section down pressing the section down Inner lock type Outer lock type Connecting D The connecting procedures are the opposite of the disconnecting procedures 2 Insert the Plug Plug housing positively While holding the cable and preventing it from rotating screw in the Tightening cap 4 Screw in the Tightening cap by hand and do not use any tools Over tightening will damage the Tightening cap 15 Inspection After Installation Check the following immediately after installation Procedures to be carried out before the power source switch is turned D The load chain must always be free from twists When the hoist lifts on two or more falls of load chain twist can arise from the bottom hook being accidentally turned over through the load chain 2 While the hoist is not under a load lubricate the whole length of the load chain with machine oil and be sure to give the contact points between the links extra coatings Extra coatin
21. S confirm that the safety latch has closed completely ALWAYS take up the slack of the load chain and sling carefully and make the initial load liftoff shock as small as possible ALWAYS use a hoist within the Duty rating ED 96 or time rating ALWAYS avoid excessive inching and make sure that the hoist motor completely stops before reversing the operating direction NEVER allow your attention to be diverted when operating the hoist and never leave a suspended load unattended NEVER operate the hoist unless the load is centered underneath it NEVER use the hoist with twisted kinked damaged or worn chain and never attempt to lengthen tne load chain NEVER use the load chain as a sling and never apply the load to the tip of the Es hook NEVER use the load chain so that it comes in to contact with an edge NEVER allow the chain or hook to be used as a ground for welding and never touch them with live welding electrodes NEVER abuse the friction clutch by using it frequently Improper use can severely damage the hoist and lead to serious injuries NEVER pull on the pendant control cable Maintenance Safety Procedures A WARNING ALWAYS have a qualified service person inspect the hoist periodically ALWAYS clean the hoist thoroughly and keep the load chain well lubricated ALWAYS only allow the friction clutch to be adjusted at an authorized NITCHI Service Shop NEVER attempt to extend repair or weld the load
22. adth Minimum Cable Length Minimum Plain trolley Hand chain AUS Net weight Net weight m pogai meter kg kg 1 Values marked differ in accordance with the height of lift 2 The specifications in the above table are subject to change without notice 8 3 Please refer to the beam drawing on the right for dimensions b and tz 4 Please refer to page 1 for the specifications of the hoist EC4 Suspended Type 2 Speed Electric Chain Hoist m Minimum Net Rated Lift Lifting speed m min Motor output KW head load M ECTJ40100 11 ECTJ40800 e o UY Major 1 Values marked X will differ in accordance with the height of lift 2 The specifications in the above table are subject to change without notice Supended type Single Phase Electric Chain Hoist es 12 Tu m LIE ori meri 1 Sr Pw 4 300 kg 500 1tw Rated load min source XS Type Lift Ie 40050 CT 6 3 4 pepe a Hook Major Dimensions mm Block TX HESS Lifting speed Motor outp t Load chain Cable Length olny sal Rating Power Pendant weight kg 1 Values marked will differ in accord
23. ance with the height of lift 2 The specifications in the above table are subject to change without notice 5 INSTALLATION Connecting the Chain bucket lt gt DANGER Do not modify the chain bucket assembly Always attach the chain bucket assembly before raising the hoist into position 9 D Connect the chain bucket assembly with the chain bucket pins 2 Feed the load chain into the chain bucket gradually and neatly from the end The load chain may tangle and the hoist may not operate correctly when the load chain is placed into the chain bucket assembly in one bundle The inside of the chain bucket assembly must be cleaned periodically when the hoist is used in an area where dust and foreign matter can enter the chain bucket assembly Chain bucket pin Table 1 Dimension mm Open the split pin as shown in the drawing Chain bucket application table Ue e Type of chain Rated load amp numbers of falls 250kg 300kg 500kg et Table2 US 748 CT7 1X1 CT7 1x2 D Lubricate the load chain before use with machine oil or gear oil 2 When the gear section of the hoist is disassembled always change the grease within the gear case Use heavy duty disulfide molybdenum grease 9 When the
24. ase we will replace the part no charge f o b Osaka Japan provided the part claimed defective is returned to our factory through authorized Distributors and or Agents with transportation prepaid However we reserve the right to decline responsibility for these which repairs are made or attempted by others or misused or carelessly operated or maintained SAFETY PROCEDURES In this operating instructions booklet precautions are listed under two categories DANGER and WARNING lt gt DANGER Situations in which improper use can lead to death or serious injuries A WARNING Situations that can cause property damage or light to intermediate injuries Some situations listed WARNING may lead to serious conditions Precautions must be obeyed no matter which category they come under S Mark indicating a procedure that is prohibited o Mark indicating a procedure that must be carried out by the operator 6 Mark specifying that the electric chain hoist must be grounded Q 4 Mark warning of the possibility of electrical shocks For future reference store this operating instructions booklet where it can be easily obtained by the operator 1 OVERALL HANDLING The unit electric chain hoist and trolley must be operated only by people who fully understand the operating instructions booklets and the precautions on the warning name plates People without the necessary qualifications must not operate the
25. c chain hoist and the motorized trolley are correct B Insert the Top hook pin as shown in the drawing and be sure to use the correct hole Connecting the Cables A Connect the electric trolley and motorizd chain hoist connecting cable 8 Insert the Plug Plug housing completely till it is locked C Next secure the Gasket and Connector cover positively Plug housing Fastening scrow Connector Receptacle housing Connector cover gasket Connecting the Pendant cable A Loosen the Fastening screws Wire hanger and detach one side of the Wire hanger as shown in the drawing 9 Insert the Pendant cable wire reassemble and firmly tighten the Fastening screws Connectin section of cable wire Pantani Connecting 1 tw and 2t The shape of the Top holder pin is as shown in the drawing B Insert the Top holder pin and set the Washer onto it C Lightly tighten the Nut by hand and insert the Split pin Connecting the Hoist to the Motorized trolley Connecting Section of Pendant cable Insert the Split pin into the Top hook pin DO B Open the Split pin as shown in the drawing Tightening cap A Confirm that the cables are connected as shown in the drawing B Firmly screw in the Tightening cap 11 electric chain hoist as shown in the drawing and be sure that the trolley and electric chain hoist are both facing the correct direction Split pin I
26. chain NEVER touch live electrical parts 3 CONDITIONS OF USE The 4 Series electric chain hoists and trolleys are designed for the vertically lifting lowering and horizontal transportation of loads by operating the pendant push button switch and must be used within the following conditions Power source As specified on name plate of the electric chain hoist and motorized trolley Trolley beam Trolley to be used only on the designated beams Temperature 20 C 40 C Humidity Under 9096 Protection IP54 Do not use in rain or dusty environments Enclosure status Do not use in ambient conditions that contain steam or explosive gases Rating Model EC4 30 minutes Model ECT4 10 30 minutes Slow Fast Model 4 15 minutes Model EET6 30 minutes 8 Grade Model EC4 6 1 Model ECT4 4 1Bm CONTENTS STANDARD SPECIFICATIONS 1 INSTALLATION t Connecting the Chain bucket 6 7 ieipm cree 7 Power source cable itr P rx P E P HERO RETE CER E s 8 Adjusting the Trolley width eese nn nnne 8 Number of Spacer Washers
27. d section of the trolley beam T Appearance of trolley correctly installed on to trolley beam 8 When the trolley beam is curved install the trolley so that the geared wheels are on the outside of the curve Motorized Trolley Geared Trolley Handwheel Motor Gear wheel Gear wheel 7 Trolley beam Connecting the Power source cable The hoist must be efficiently grounded and an independent circuit breaker of the appropriate capacity must be installed in the power source system The power source systems of hoists connected to trolleys are as follows D Install a messenger wire 6 mm steel cable parallel to the trolley beam Hang the power source cable from the messenger wire with cable carriers and be careful not to twist the power source cable Messenger wire Cable carrier Terminal box 1 Power source switch 2 Install cable carriers at every 1 5 meters length of the power source cable 3 The connections of the Power source cable must only be made at the Hoist Terminal box and Power source switch Do not use Power source cables that are lengthened with connections 4 The following power source feeding method can be used in place of the Messenger wire method Please consult an electrician for the most appropriate method for your hoist CABLE CARRIER METHOD TROLLEY DUCT M
28. g of machine oil at contact points Hoist with two falls of load chain Procedures to be carried out after the power source switch is turned D The hoist is equipped with a negative phase protector When the hoist does not function when the pendant push buttons are depressed the negative phase protector is functioning If this happens interchange the position of two wires of power source cable 2 As shown in the lower drawing a reverse connection can be corrected by interchanging two wires S and T of the three wires of the power source cable Power source switch Power source switch Power source cable connection Power source cable connection 8 b When Power source connection a is a reverse connection the reverse connection be corrected by interchanging wires 5 and T as shown Power source cable connection b INSPECTION amp MAINTENANCE Qi DANGER When inspecting the hoist turn the power source OFF and hang out a sign that distinctly indicates that it is under inspection Inspect the hoist while it is not under a load Consult the authorized NITCHI dealer or distributor from where the hoist was purchased when repairs or replacement parts are required Daily monthly and annual inspections are essential for ensuring a long and safe lifetime of the hoist All inspections and repairs must be carried out by competent responsible peopleauthorized by the
29. iph 24V Rated Load 250 5009 Lifting Motor KW 0 23 Lifting MotokW 0 4 0 9 1 1 E M Contactor 2 1 2 5 M E M Contactor MC E M Contactor Transformer BS Push Button Switch Limit Switch SOL Solenoid N390 DS Disconnecting Switch TSK 5118 _ PR Negative Phase Protector PR AN NAME 24 ECTE4 250kg 500kg 1tw 1t 2t Motorized Troley Type 2 Speed electric chain hoist VCT l 25mm x 4 Yeon Green T 50Hz Operation Voltage AC1ph Rated Load Power Source 1 25mmY x 4 Power R Li Source 5 iting Motor kW Yalow Lifting Motor kW Traversing Motor kW E M Contactor E M Contactor E M Contactor E M Contactor Transformer Push Button Switch Limit Switch Solenoid Fuse TSF 511B 2A Disconnecting Switch TSK 5118 PR 4N TYPE 4 300kg 500kg 1tw Suspended Type Single phase electric chain hoist Power White 5 Source Black Power Source peration Volta Rated Load 300kg 500kg M LitingMotrkW 04 MC EMContacln HMUI2 TF _ Trensfomer BS __Push
30. nsert the Split pin into the hole of the Top hook pin Connecting the Hoist to the Geared trolley plain trolley QE er ue 5 Top hook pin 2 E dux into the hole GE Insert the Top hook pin as shown in the drawing and be sure to use the correct Open the Split pin as shown in the drawing The connecting method of a plain trolley is basically the same as the above The trolley must be installed onto the trolley beam only by qualified people with the necessary knowledge D Inserting an assembled trolley from the end of the trolley beam Remove the Stoppers at the end of the trolley beam and insert the trolley Replace and positively secure the stoppers E stopper n 2 How to install the trolley when the assembled trolley can not be inserted from the end of the trolley beam Remove the Hexagonal nuts from the Stay bolts Dismount the Plain side plate _ Set the Geared wheels on to the tread section of the trolley beam While holding the Geared wheels in position insert the Plain side plate so that the Plain wheels will be in position on the tread section of the trolley beam Firmly tighten the Hexagonal nuts of the Plain side plate side of the Stay bolts The designs of the actual trolleys NE are different from what are shown Gear wheel in the photographs and drawing Gear side plate Plain side plate Stay bolt Gear wheel the trea
31. ontactor HMU1224 Push button switch Refer to cord numbers shown in the circuit diagram tables Powersoucecae 1 6552 Trolley cable DEM8553 LEM6553 Push button cable assembly cun Specify the type of push button switch and the length of the pendant cable DEMS558SN LEM6558SN DEC4585 OA W2216 SK 14L ___________ Connecting cable power Connecting cable control Connector cover gasket Cord lock 34
32. rs on file 17 INSPECTION POINTS EC4 SERIES HOISTS Abnormal sound Table 6 Proper condition 2 No crack or deformation Motor and other parts sound normal Side plates No wearing and deformation Gears and bearings No wearing and crack Well lubricated with grease Load sheave Opening No wearing and crack Same as recorded dimension A of new hook Holders No crack and deformation Bottom swivel hook Rotates smoothly on a thrust ball bearing External view Rivets for holder Dimensions No wear or deformation Refer to the Table 10 Load chain Visual condition Gear teeth nd Limit switch Limit No rust cracks wear or deformation Sufficient grease Well lubricated with machine oil along the whole length particularly at the contact points Motor stops when handle is pushed up Test lifting and lowering without a load mechanism Stop holder Brake mechanism Power source cable and pendant control cable Push button switch Bolts and nuts firmly tightened No crack The brake must function positively When the rated load is lifted the amount of slippage of the brake must be within 196 of the distance the hois
33. t can lift in 1 minute Refer to the Lifting speed on Page 1 No breakage and damage of the rubber covered cables No disconnection Contact points functioning positively Electrical Switch box components Limit switch electromagnetic contactor functioning correctly Motor No humming and over heating Insulation resistance Bearings Insulation resistance exceeds 2M by DC 500V Megger Properly and smoothly engaging with shafts Chain collecting bucket Bolts nuts etc Name plate mark plate Inside of the chain bucket free of rust dirt grease and other foreign matter All in good condition and securely in position Clearly observable 18 INSPECTION POINTS TROLLEYS PLAIN GEARED MOTORIZED Side plates Table 7 Proper condition No bending crack and other deformations Bolts nuts cotter pins No looseness breakage and missing and snap rings etc All Trolleys No excessive wear on tread and gear sections Well lubricated and rotating smoothly Trolley wheels Bearings Properly engaged with shafts and rotating smoothly Capacity mark Distinctly observable Handwheels Correctly meshing with hand chain No cracks breakage or extensive wear Shaft area
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