Columbus McKinnon Coffing Hoists LSB-12000C Скачать руководство пользователя страница 13

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P/N: 192090087 REV. AA

October 2021

TROUBLESHOOTING

Symptom

Possible Cause(s)

Corrective Action

Slip caused by ineffective braking.

1. Worn-out friction discs.

2. Excessive oil on the braking surface.

3. Incorrect assembly of the brake system.

Replace with new fictions discs.

2. Disassemble and clean.

3. Assemble correctly. (See the following pages)

Load dropped while lowering.

1. Damaged friction discs.

2. Foreign matter in the braking system.

1. Replace with new ones.

2. Disassemble and clean.

Jammed operating handle.

Over-tightening of the brake.

Operate the lever hoist as if lowering a load.

Noises during hoisting and lowering operation.

Wear or deformation of the load chain and load

sheave.

Replace with new parts.

Operating handle becomes difficult to operate

during lifting or lowering operation.

1. Over-hoisting or over-lowering.

2. Twist in the load chain causing it to catch

between load sheave and load chain guide.

1. Operate the hoist in the opposite direction.

2. Operate the hoist in the opposite direction and

remove the twist from the load chain.

NOTE: Refer to pages 15-17 for parts lists.

Содержание Coffing Hoists LSB-12000C

Страница 1: ...ing and operating this hoist 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 should become thoroughly familiar with all warnings instructions and recommendations in this manual Retain this manual for future reference and use Forward this manual to ...

Страница 2: ... parts services through a network of Master Parts Depots and Service Centers that are strategically located in the United States and Canada These facilities have been se lected for their demonstrated ability to handle all parts and repair requirements promptly and efficiently To quickly obtain the name of the Master Parts Depot or Service Center nearest you call 800 888 0985 Fax 716 689 5644 ...

Страница 3: ...unctions or unusual performances of a hoist Shut it down and forbid its use until it has undergone repair 28 not operate a hoist on which the safety placards or decals are missing or illegible 29 Be familiar with operating controls procedures and warnings CAUTION improper operation of a hoist can create a potentially hazardous situation which if not avoided could result in minor or moderate injury...

Страница 4: ...Statement This is to certify that the accompanying Coffing Hoist s has have been tested at 125 of rated capacity and inspected in accordance with ASME ANSI B30 21 Do not exceed rated capacity stated on the hoist Refer to manual for operating instructions and forward manual to operator SPECIFICATIONS Model LSB C Lever Hoist 0 75 3t 6t Model Rated Capacity Test Load 150 Rated Standard Lifts Load Cha...

Страница 5: ...e from the bottom hook accidentally turning over through the load chains 4 The area in which the hoist is installed must provide sufficient room for The operator to operate the lever The operator and other personnel to stand clear of the load at all times Firm footing for the operator Clearance between the hoist frame and any object The frame must be free to swivel on the upper hook WARNING Attach...

Страница 6: ...g See Figure 2 Set the selector lever to the UP position Take up the slacked load chain by turning the guide handle clockwise Next manipulate the operating handle clockwise Lowering Releasing See Figure 3 Set the selector lever to the DOWN position Manipulate the operating handle counterclockwise When there is no load on the lever hoist the load chain can be slacked by turning the guide handle cou...

Страница 7: ...ull by manipulating the operating handle WARNING If the unit is not rigged in a straight line hook to hook and if the frame is not free to swivel the lever pull may break the frame and cause physical injury and loss of load TO AVOID INJURY Rig the unit in a straight line hook to hook and ensure the frame swivels freely See Figure 5 Figure 5 Pulling at an Angle INSPECT HOIST Inspect it before each ...

Страница 8: ...before returning the hoist to service Also the external conditions may show the need for more detailed inspection which in turn may require the use of non destructive type testing Replace any parts deemed unserviceable using new parts before returning the hoist to service Destroy unserviceable parts and properly dispose of them to prevent any future use of them When the unit is subjected to heavy ...

Страница 9: ...ipper and lift wheel for wear and replace it as necessary when replacing worn chain Also the load chain is specially heat treated and hardened and should never be repaired Important Do not use a replaced chain for other purposes such as lifting or pulling The load chain may break suddenly without any visual deformation For this reason cut replaced chain into short lengths to prevent its use after ...

Страница 10: ...rication To ensure proper operation DO NOT apply lubricant to the friction surfaces or to adjacent parts of the load limiter TESTING Test the load limiter during periodic inspections To perform this test attach the lower hook to a load at maximum 200 of rated capacity and operate the unit in the UP direction When attempting to lift the load the lever should slip After this test move the trigger to...

Страница 11: ...Load Chain SAE 20 30 Machine Oil Daily Weekly Monthly See Pages 15 17 Load Pawl Shaft Pinion Shaft Gear Bearings Pinion Gear Teeth Multi purpose Lithium base bearing grease At periodic inspection See Inspection Maintenance Checklist See Pages 15 17 Bottom Block Shaft Bearing Hook Swivel SAE 20 30 Machine Oil Monthly Yearly Yearly This lubrication schedule is based on a hoist operating in normal en...

Страница 12: ...essive wear Housing Load Block Outrigger Hook Swivels Cracks distortion loose bolts nuts or rivets Internal buildup of foreign substances Nuts Bolts Rivets Looseness stripped or damaged threads Supporting Structure Damage or wear that restricts ability to support imposed loads Capacity Plate Decals Missing damaged or illegible NOTE Refer to Maintenance and Inspection Sections of this manual for fu...

Страница 13: ...ce with new ones 2 Disassemble and clean Jammed operating handle Over tightening of the brake Operate the lever hoist as if lowering a load Noises during hoisting and lowering operation Wear or deformation of the load chain and load sheave Replace with new parts Operating handle becomes difficult to operate during lifting or lowering operation 1 Over hoisting or over lowering 2 Twist in the load c...

Страница 14: ...operties ORDERING INSTRUCTIONS The following information must accompany all correspondence orders for replacement parts 1 Hoist model number from identification plate 2 Serial number of the hoist stamped below identification plate 3 Length of lift 4 Part number of part from parts list 5 Number of parts required 6 Part name from parts list NOTE When ordering replacement parts order such items as nu...

Страница 15: ...15 P N 192090087 REV AA October 2021 COFFING LSB C HAND OPERATED LEVER HOIST ...

Страница 16: ... 1 192090159 192090160 32 Lever Directional Pawl 1 192090161 192090162 37 Gear Cover 1 192090163 192090164 192090165 40 Ratchet Cover 1 192090166 192090167 192090168 42 Hand Wheel 1 192090169 51 Yoke Pin 1 192090170 192090171 192090172 53 3 Lower Hook Block 2 192090173 55 Idle Sheave 1 192090174 56 Sheave Shaft 1 192090175 58 Collar for Idle Sheave Shaft 2 192090176 59 Pinion Washer 1 192090177 19...

Страница 17: ...1 ton 1 5 ton Short Handle 3 ton 6 ton 128 Socket Head Cap Screw 2 192090219 141 Socket Head Cap Screw 3 192090220 142 Spring Nut 3 192090221 143 Spring Pin 1 192090222 146 Warning Label 1 192090223 Not included in units with Load Limiter Not shown in the exploded views ...

Страница 18: ...MCO Warranty HOISTS OF i SUCH WARRANTY WITH RESPECT TO THE ELECTRICAL COMPONENTS OF ANY GOOD SHALL BE VALID OR ENFORCEABLE UNLESS BUYER S WRITTEN NOTICE THEREOF IS RECEIVED BY SELLER WITHIN ONE 1 YEAR FROM THE DATE OF SELLER S DELIVERY TO THE CARRIER AND ii SUCH WARRANTY WITH RESPECT TO THE MECHANICAL COMPONENTS OF ANY GOOD SHALL BE VALID OR ENFORCEABLE UNLESS BUYER S WRITTEN NOTICE THEREOF IS REC...

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