Table of Contents
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NITCHI
• EC4
• ECT4
TROLLEYS (MECHANICAL JOINING TYPE)
MODELS: EET6, EGT5 AND EPT5
OPERATING AND MAINTENANCE 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/or electric chain hoist.
•
The hoist operator must receive this operating instructions booklet!
•
The hoist operator must read this operating instructions booklet!
Customer's notes:
Model/capacity
Serial no.
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.
ELECTRIC CHAIN HOIST
• ECC4
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Table of Contents
Related Manuals for Nitchi EC4 Series
Summary of Contents for Nitchi EC4 Series
- Page 1 NITCHI ELECTRIC CHAIN HOIST • EC4 • ECT4 • ECC4 TROLLEYS (MECHANICAL JOINING TYPE) MODELS: EET6, EGT5 AND EPT5 OPERATING AND MAINTENANCE 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/or electric chain hoist.
- Page 2 WARRANTY NITCHI products are guaranteed to be free from any defects in materials or workmanship. lf any part or parts proves defective within six months from the date of purchase, we will replace the part no-charge, fOB Osaka, Japan, provided the part claimed defective is returned to our factory through authorized NITCHI Distributors or Agents with transportation prepaid.
- Page 3 ALWAYS Check the brake before use. ALWAYS Check the safety latches to see if they work properly. Broken and missing safety latches must be replaced immediately. ALWAYS Use genuine NITCHI parts and chains. NEVER Modify the hoist. NEVER Use modified or deformed hooks.
- Page 4 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 chain.
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Page 5: Table Of Contents
3. CONDITIONS OF USE The EC4 Series electric chain hoists and trolleys are designed for the vertically lifting, lowering and hori- zontal 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. -
Page 6: Standard Specifications
STANDARD SPECIFICATIONS HOOK SUSPENDED TYPE ELECTRIC CHAIN HOIST EC4 250 kg • 500 kg • 1t ECJ4 1tw · 2t Mini- Cable lenght Lifting speed Motor output Load chain (m/min) (kW) Item Rated Lift Rating weight Power Pen- head load (min) source dant... - Page 7 ELECTRIC CHAIN HOIST WITH MOTORIZED TROLLEY ECE4 250 kg • 500 kg • 1t ECJE4 1tw • 2t Traversing Mini- Mini- Cable Length speed (m/min) Motor Breadth Rated Lift Rating Weight Item No. outpur of beams radius head Power Load (min) Pendant (kW)
- Page 8 ELECTRIC CHAIN HOIST WITH GEARED TROLLEY OR PLAIN TROLLEY ECG4 250 kg • 500 kg • 1t ECJG4 1tw • 2t Mini- Mini- Cable length Common specifications Major Dimensions (mm) Rated Lift radius head Power Pen- Item No. load room source dant curve...
- Page 9 SUSPENDED TYPE 2-SPEED ELECTRIC CHAIN HOIST ECT4 • 500 kg • 1t ECTJ4 1tw • 2t Rating Mini- Lifting speed (m/min) Motor output (kW) Load chain Cable Length (min) Item Rated Lift head weight Pen- Fast Slow Fast Slow Power load (mm) room...
- Page 10 SUSPENDED TYPE SINGLE-PHASE ELECTRIC CHAIN HOIST ECC4 • 500 kg ECCJ4 1tw Lifting speed Motor output Load chain Cable Length Mini- (m/min) (kW) Item Rated Lift Rating weight head load (mm) Power Pen- room G Nos. of (= kg) (mm) 50Hz 60Hz 50Hz...
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Page 11: Installation
INSTALLATION CONNECTING THE CHAIN BUCKET DANGER • Do not modify the chain bucket assembly. PROHIBITED • Always attach the chain bucket assembly before raising the hoist into position. MANDATORY 1. Connect the chain bucket assembly with the chain bucket pins. 2. -
Page 12: Lubrication
LUBRICATION 1. 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. 3. When the gear box section of the Motorized trolley is disassembled add an extra coat of heavy duty grease (disulfide molybdenum grease) to the gears. -
Page 13: Power Source Cabie
POWER SOURCE CABLE 1. 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 cabIe). 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. -
Page 14: Number Of Spacer Washers
NUMBER OF SPACER WASHER EET6 Quantity and location Table 4 250kg - 1t BEAM SIZE EET6... - Page 15 NUMBER OF SPACER WASHER EPT5 EGT5 Quantity and location Table 5 250kg - 1t BEAM SIZE EPT5 EGT5 EPT5 EGT5 421/2...
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Page 16: Connecting The Hoist To The Motorized Trolley
CONNECTING THE HOIST TO THE MOTORIZED TROLLEY Motorized trolley Connecting section of Socket pendant cable Electric chain hoist • Connect the electric Top hook pin Wire hanger chain hoist to the mo- torized trolley as shown in the drawing, and be sure that the direction Split pin of the electric chain... -
Page 17: Connecting The Hoist To The Trolley
CONNECTING THE HOIST TO THE GEARED TROLLEY (PLAIN TROLLEY) Insert into the hole Geared trolley (Plain trolley) Top hook pin Electric chain hoist Connect the trolley to the lnsert the Top hook pin as electric chain hoist as shown in the drawing, and shown in the drawing and be sure to use the correct be sure that the trolley... -
Page 18: Setting The Trolley Onto The Beam
SETTING THE TROLLEY ONTO THE BEAM DANGER • The trolley must be installed onto the trolley beam only by qualified people with the neces- PROHIBITED sary knowledge. lnserting an assembled trolley from the end of the trolley beam: • Remove the Stoppers at the end of the trolley beam, and insert the trolley. •... -
Page 19: Connecting The Power Source Cabie
CONNECTING THE POWER SOURCE CABLE DANGER • The hoist must be efficiently grounded, and an inde- pendent circuit breaker of the appropriate capacity PROHIBITED must be installed in the power source system. GROUND CONNECTION The power source systems of hoists connected to trolleys are as follows: lnstall a messenger wire ( 0 6 mm steel cable) parallel to the trolley beam. -
Page 20: Connecting The Quick Coupling
CONNECTING THE QUICK COUPLING Disconnecting and Connecting the Quick coupling: Disconnecting: Loosen the Tightening cap. Tightening cap Remove the Fastening screws from the Connector cover. Slide the Connector cover gasket and Connector cover Connector cover out of the way. Disconnect the Plug (Plug housing). Pull the Plug (Plug housing) out while Pull the Plug (Plug housing) out while pressing the section down. -
Page 21: Lnspection After Lnstallation
INSPECTION AFTER INSTALLATION DANGER • Check the following immediately after installation PROHIBITED Procedures to be carried out before the power source switch is turned "ON". 1. 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. -
Page 22: Inspection & Maintenance
“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 uthorized NITCHI dealer or distributor from MANDATORY where the hoist was purchased when repairs of replacement parts are required. -
Page 23: Inspection Points
INSPECTION POINTS EC4 SERIES HOISTS Table 6 Section Check points Proper sondition External view No crack of deformation Abnormal sound Motor and other parts sound normal. Body Side-plates No wearing deformation No wearing and crack. Well lubricated with Gears and bearings... - Page 24 INSPECTION POINTS Trolleys (plain/geared/motorized) Table 7 Section Side plates No bending, crack and ether deformations. Bolts, nuts, cotter-pins and snap-rings, ect. No looseness, breakage and missing. No excessive wear on tread and gear secti- Trolley wheels ons. Well lubricated and rotating smoothly. All trolleys Properly engaged with shafts and rotating Bearings...
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Page 25: Hook & Chain Lnspection
HOOK & CHAIN INSPECTION Repeated use over a 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 limits of the following tables. -
Page 26: Care After Lnstallation
CARE AFTER INSTALLATION DANGER • NEVER attempt to disassemble or readjust the MANDATORY Friction clutch (O.L.P.) ! The Friction clutch will malfunction when it is incorrectly adjusted. PROHIBITED 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. -
Page 27: Adjusting The Brake
ADJUSTING THE BRAKE DANGER • The brake must be adjusted only at a NITCHI Service MANDATORY Shop or by a qualified person with the appropriate knowledge. • The power source must be turned off before the PROHIBITED brake is adjusted.