background image

4

JLC680-2 Rev AA  

April 2019

SECTION I — INTRODUCTION

1-1 GENERAL INFORMATION

INSPECTION

This manual provides information for the safe operation and 

maintenance of Coffing

®

 JLC Series Hoists. All persons operating 

or maintaining these hoists should be familiar with the information 

contained herein. Adherence to the precautions, procedures, and 

maintenance practices described should ensure long reliable 

operation. Suggestions for improvements to this manual  

are solicited. 

To safeguard against the possibility of personal injury or property 

damage, follow the recommendations and instructions of this 

manual. This manual contains important information for the correct 

installation, operation, and maintenance of this equipment. All 

persons involved in the installation, operation, and maintenance of 

this equipment should be thoroughly familiar with the contents of this 

manual. Keep this manual for reference and further use

.

 

To avoid personal injury:

Do not use the equipment shown in this manual to lift, support, or 

otherwise transport people, or to suspend unattended loads over 

people.

1-2 SAFETY STANDARDS

All persons concerned with the installation, operation, inspection 

and maintenance of these hoists are urged to read ASME B30.16. 

That Standard contains valuable guidelines concerning practices 

designed to minimize hazards associated with the use of overhead 

hoisting equipment. ASME B30.16 also contains detailed procedures 

for establishing hoist inspection and maintenance programs and can 

be of significant assistance in maintaining compliance with OSHA 

regulations.

1.  Follow all local electrical and safety codes, as well as the 

National Electrical Code (NEC) and the Occupational Safety  

and Health Act (OSHA) in the United States.

2.  Hoist must be securely and adequately grounded. Hoist  

power cable is provided with an additional lead (green) for 

grounding purposes.

Always disconnect power source before working on or near 

a hoist or its connected load. If the power disconnect point 

is out of sight, lock it in the open position and tag to prevent 

unexpected application of power.

3.  Be careful when touching the exterior of an operating motor; 

it may be hot enough to be painful or cause injury. With 

modern motors this condition is normal if operated at rated 

load and voltage (modern motors are built to operate at higher 

temperatures).

4.  Protect the power cable and control cable from coming in 

contact with sharp objects.

5.  Do not kink power cable and control cable and never allow the 

cable to come in contact with oil, grease, hot surfaces,  

or chemicals.

6.  Make certain that the power source conforms to the 

requirements of your equipment.

7.  Inspect the unit daily before operating the hoist.

8.  Cluttered areas and benches invite accidents.

9.  The operator should not engage in any practice which will  

divert his attention while operating the hoist.

10.  Before using the hoist, the operator should be certain that all 

personnel are clear.

11.  Do not operate hoist with loads exceeding its rated capacity.

12.  Supporting frames or beams used as a hoist hanger must have 

a greater load capacity than the hoist.

13.  Do not attempt to operate the hoist beyond normal maximum 

lift range.

14.  Align hoist for a straight line pull. Avoid side pull or end pull.

15.  Do not operate hoist with twisted or damaged chain.

16.  Do not operate a damaged or malfunctioning hoist until 

necessary adjustments or repairs have been made.

17.  Do not use hoist to lift people or to carry loads over people.

18.  Do not leave a load suspended in the air unattended.

19.  Always remove load before making repairs.

20.  Do not remove or obscure capacity or warning decals

1-3 BASIC HOIST DATA 

The basic hoist models covered by this manual are listed in  

Table 1.

1-4 APPLICATION INFORMATION

This hoist is intended for general industrial use in the lifting and 

transporting of freely suspended material loads within its rated 

load. Prior to installation and operation, the user should review his 

application for abnormal environmental or handling conditions and to 

observe the applicable recommendations as follows:

a. 

Adverse Environmental Conditions.

 Do not use the hoist 

in areas containing flammable vapors, liquids, gases or 

any combustible dusts or fibers. Refer to Article 500 of 

The National Electric Code. Do not use this hoist in highly 

corrosive, abrasive or wet environments. Do not use 

this hoist in applications involving extended exposure to 

ambient temperatures below -10°F or above 130°F.

b. 

Lifting of Hazardous Loads.

 This hoist is not 

recommended for use in lifting or transporting hazardous 

loads or materials which could cause widespread damage if 

dropped. The lifting of Ioads which could explode or create 

chemical or radioactive contamination if dropped requires 

fail-safe redundant supporting devices which are not 

incorporated into this hoist.

c. 

Lifting of Guided Loads.

 This hoist must not be used in the 

lifting of guided loads, including dumbwaiters, non-riding 

elevators and elevators. Such applications require additional 

protective devices which are not incorporated into this 

hoist. Refer to your state and local regulations governing 

and the American National Safety Code for elevators, 

dumbwaiters, escalators and moving walks (ASME A17.1).

1-5 WARRANTY

Every hoist is thoroughly inspected and tested prior to shipment 

from the factory. Should any problems develop, return the complete 

hoist prepaid to your nearest Coffing Authorized Warranty Repair 

Station. If inspection reveals that the problem is caused by defective 

workmanship or material, repairs will be made without charge and 

the hoist will be returned, transportation prepaid.

This warranty does not apply where: (1) deterioration is caused by 

normal wear, abuse, improper or inadequate power supply, eccentric 

or side loading, overloading, chemical or abrasive actions, improper 

maintenance or excessive heat; (2) problems resulted from repairs, 

modifications or alterations made by persons other than factory 

or Coffing Authorized Warranty Repair Station personnel; (3) the 

hoist has been abused or damaged as a result of an accident; (4) 

repair parts or accessories other than those supplied by Coffing are 

used on the hoist. Equipment and accessories not of the seller's 

manufacture are warranted only to the extent that they are warranted 

by the manufacturer. EXCEPT AS STATED HEREIN, COFFING 

MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, 

INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS 

FOR A PARTICULAR PURPOSE.

Содержание Coffing JLC Series

Страница 1: ...The use of any hoist presents some risk of personal injury or property damage That risk is greatly increased if proper instructions and warnings are not followed Before using this hoist each operator...

Страница 2: ...ervicio situados estrat gicamente en Estados Unidos y Canad Estas instalaciones se han seleccionado en base a su capacidad demostrada en la reparaci n de equipos y suminstro de piezas de repuesto de f...

Страница 3: ...ing action is secure before continuing 26 Shut down a hoist that malfunctions or performs unusually and report such malfunction 27 Make sure hoist limit switches function properly 28 Warn personnel of...

Страница 4: ...ur loads Then match them The application the size and type of load the attachments to be used and the period of use must also be taken into consideration in selecting the right hoist for the job Remem...

Страница 5: ...er 7 Hooks 7 Chains 8 Limit Switch Adjustment 9 Brake 9 Hoist Controls 10 Wiring 10 Lubrication 10 Hoist Repairs 10 Power Cord Precautions with 1 Phase Hoists 12 TROUBLESHOOTING 13 WIRING 15 INSPECTIO...

Страница 6: ...t to operate the hoist beyond normal maximum lift range 14 Align hoist for a straight line pull Avoid side pull or end pull 15 Do not operate hoist with twisted or damaged chain 16 Do not operate a da...

Страница 7: ...roughly familiar with all warnings instructions and recommendations in this manual SECTION III INSTALLATION 1 Before installing the hoist check the following a Make sure all supporting structures and...

Страница 8: ...hain stripper between top lugs Insert long attachment pin and replace retaining clip 4 Feed the remainder of chain into container by operating hoist in the UP direction to the top limit This will perm...

Страница 9: ...y releasing the UP button and reducing the load to within the rated capacity of the hoist See GEARING page 10 for additional instructions on this device The overload limiting clutch is an emergency pr...

Страница 10: ...or wear beyond the stated limits to any portion of the chain requires that the entire length of chain be replaced CHAIN REPLACEMENT WITH CHAIN IN HOIST Refer to Figures 3 4 1 Run hook up to its top li...

Страница 11: ...if it has been set previously ADJUSTING LOWER LIMIT SILVER NUT Refer to Figure 3 1 Suspend the hoist Carefully lower the load block to a point where the slack end loop of the chain hangs down 6 or mo...

Страница 12: ...heck oil level by removing the oil level fill plug from the side of the hoist With the hoist hanging level gear oil should be even with the hole Change oil periodically depending on the severity of th...

Страница 13: ...inspect all bearings Replace as necessary The overload slip clutch is factory calibrated and must not be disassembled or readjusted Do not disassemble or readjust the clutch or replace it with a clut...

Страница 14: ...e 8C Figure 8C Double Chain Hook Orientation When reassembled recheck the limit switch settings See LIMIT SWITCH ADJUSTMENT page 8 5 11 POWER CORD PRECAUTIONS WITH 1 PHASE HOISTS Electric hoists requi...

Страница 15: ...r brake requires adjustment 2 Check motor brake adjustment See BRAKE ADJUSTMENT page 9 3 Worn overload limiting clutch 3 Replace clutch 4 Low voltage 4 Determine cause of low voltage and bring up to w...

Страница 16: ...ll drastically shorten the life of motor contactor and brake 5 Brake dragging 5 Check brake adjustment See BRAKE ADJUSTMENT page 9 Lack of proper lifting speeds 1 Hoist overloaded 1 Reduce load to wit...

Страница 17: ...15 JLC680 2 Rev AA April 2019 SECTION VII WIRING Figure 9A Wiring Diagram for 115 230V 1 Phase Models Figure 9B Wiring Diagram for 1 Speed 230 460V 3 Phase Models...

Страница 18: ...r 1 Speed 208V and 575V 3 Phase Models Factory supplied diagrams will be numbered beginning with 985 for 575V and 987 for 208V Figure 9D Wiring Diagram for 2 Speed 3 Phase Models Factory supplied diag...

Страница 19: ...ed The frequent inspections are to be performed monthly for normal service weekly to monthly for heavy service and daily to weekly for severe service and they should include those items listed in Tabl...

Страница 20: ...ippage or excessive drift 2 Glazing contamination or excessive wear Hooks Excessive throat opening 15 bent or twisted more than 10 degrees damaged hook latch wear chemical damage worn hook bearing Cra...

Страница 21: ...tion Schedule RECOMMENDED LUBRICATION SCHEDULE COFFING ELECTRIC POWERED CHAIN HOIST Page and Reference No Component Type of Lubricant Type of Service and Frequency of Lubrication HEAVY NORMAL INFREQUE...

Страница 22: ...espondence orders for replacement parts 1 Hoist Model Number from identification plate 2 Serial number of the hoist stamped below identification plate 3 Voltage phase hertz from the identification pla...

Страница 23: ...13 Latch Kit Assembly 4X1305 2 14 Hook Retainer JM285 1 Ref no Description Part No Qty 15 JLC Coffing Decal Left Hand JLC677 2L 1 15 JLC Coffing Decal Right Hand JLC677 2R 1 16 Capacity Decal 1 8 ton...

Страница 24: ...861JR12 1 1 Hoist Motor 1 hp 115 230V 1Ph 861JR14 1 2 Stator Assembly 1 3 Rotor Assembly 1 4 End Shield 1 5 Rear Bearing 500K3 1 6 Front Bearing 1 7 Shim Washer JL4301 01 1 8 Thru Bolt HA3100A56 4 9...

Страница 25: ...60Hz 863JR9 1 1 2 hp 208V 3Ph 60Hz 863JR10 1 1 hp 208V 3Ph 60Hz 863JR12 1 Hoist Motor 2 Speed 1 4 hp 230V 3Ph 60Hz 873JR1 1 1 2 hp 230V 3Ph 60Hz 873JR2 1 1 hp 230V 3Ph 60Hz 873JR4 1 1 4 hp 460V 3Ph 6...

Страница 26: ...3 4 Brake Plate JF291 2 5 Plate Armature Assembly JF858 1 6 Spring 344J6 3 Ref no Description Part No Qty 7 Retainer JF710 1 8 Plate Frame Assembly JF857 1 9 Brake Coil 115V 853JL1 1 230V 853JL2 1 46...

Страница 27: ...No Qty 230 460V 909J10 8 6 Terminal Block 115 230V 909J14 4 7 End Plate 115 230V 909J15 1 230 460V 909J12 1 8 End Clamp 115 230V 230 460V 909J13 3 Single Voltage Models 909J13 1 9 Marking Strip 909J11...

Страница 28: ...1 Ref no Description Part No Qty Pri 230 460V Sec 115V 821J431 1 Pri 575V Sec 24V 821J452 1 Pri 575V Sec 115V 821J451 1 Pri 208V Sec 24V 821J472 1 Pri 208V Sec 115V 821J471 1 6 15 ft Power Cord Assem...

Страница 29: ...ength PB2100 16 1 2 Pushbutton Station Assembly 2 Button 1 Speed 36900R 1 3 Enclosure 36998R 1 4 Control Cable Assembly 6 ft Cable Length PBC2100 6 1 11 ft Cable Length PBC2100 11 1 16 ft Cable Length...

Страница 30: ...PB2200 16 1 2 Pushbutton Station Assembly 2 Button 2 Speed 36800R 1 3 Enclosure 36998R 1 4 Control Cable Assembly 6 ft Cable Length PBC2200 6 1 11 ft Cable Length PBC2200 11 1 16 ft Cable Length PBC22...

Страница 31: ...ant Control 2 Speed No E stop ECUR 1S 25P 25 PACK Rocket Pendant Control Single Speed No E stop ECUR 2S 25P 25 PACK Rocket Pendant Control 2 Speed No E stop Part No Ref No Description Qty Ecur 0001 St...

Страница 32: ...Lg Thd Roll Plstc 4 19 Screw M4 x 1 79 x 12mm Lg Thd Roll Plstc 1 18 Screw M4 x 1 79 X 33 5mm Lg Thd Roll Plstc 2 23 Strain Relief 1 27 Washer M3 x 6mm Od Sst 4 29 Washer M4 Lk Sst 2 28 Washer M4 x 8m...

Страница 33: ...sembly Includes items 4 8 918JG3 1 4 Switch 815J1 2 5 6 32UNC X 1 Screw H1402P 4 6 6 32UNC Elastic Locknut H3944 4 7 Limit Switch Bracket Guide Assembly Includes Item 8 JF900 3 1 Ref no Description Pa...

Страница 34: ...32UNC X 1 4 Screw 854823 3 7 Limit Switch Shaft Gear 117JG2 1 8 Limit Switch Nut gold SK6000 63W 1 9 Limit Switch Nut silver SK6000 63Z 1 10 Thrust Washer 255K16 1 11 Spring PB287 1 12 Bushing JF531 4...

Страница 35: ...33 JLC680 2 Rev AA April 2019 FIGURE 23 TRANSMISSION...

Страница 36: ...Output Pinion JL401A 1 20 Overload Clutch Assembly 1 8 ton 32 fpm 591JG22A 1 20 Overload Clutch Assembly 1 4 ton 16 fpm 591JG25A 1 20 Overload Clutch Assembly 1 4 ton 32 fpm 591JG22A 1 20 Overload Cl...

Страница 37: ...35 JLC680 2 Rev AA April 2019 FIGURE 24 CHAINING PARTS...

Страница 38: ...4 2 16 Load Block Frame 30J14 2 17 Load Block Pin 18J8 1 18 Slotted Hex Nut H3986P 1 19 Bearing JF510 1 20 Latch Kit 4X1304 1 21 Bottom Hook Assembly with Latch for 1 Ton Under 3JG20S 1 22 Bottom Bloc...

Страница 39: ...37 JLC680 2 Rev AA April 2019 NOTES...

Страница 40: ...YEAR FROM THE DATE THE DATE ANY ALLEGED CLAIM ACCRUES EXCEPT FOR THE WARRANTIES SET FORTH ABOVE SELLER MAKES NO OTHER WARRANTIES WITH RESPECT TO THE GOODS OR ANY REPLACEMENT PART WHETHER EXPRESSED OR...

Отзывы: