Yale Series Y80 manual Do not lift more than rated load except for test purposes

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WARNING

BEFORE ATTEMPTING TO TEST THE OVERLOAD CLUTCH, MAKE CERTAIN THE FOLLOWING PREREQUISITES ARE STRICTLY OBSERVED:

a.An appointed person must determine, before starting, that all structures supporting the hoist are adequately strong to withstand the test load of 200% of the rated load, plus the weight of the hoist, whether hoist is tested in installed position or moved to a designated test facility.

b.Loads used for testing must be accurately known.

c.Test must be made ONLY by a qualified operator, thoroughly familiar with the hoist and the purpose of the test.

d.Adequate and proper rigging must be provided to ensure that test loads are securely attached, properly balanced, and lifted level. Failure to provide adequate support could cause injury to personnel and/or damage to equipment.

(1)Using a known load, equal to the hoist rated load, energize hoist to lift the load. Raise this load just high enough to be certain hoist is lifting the entire load. Clutch should not slip with the rated load. Lower load to rest position. If clutch slips with rated load, adjustment is required. (See paragraph 7-5. — “OVERLOAD CLUTCH ADJUSTMENT”.) If hoist will lift rated load, proceed to step (2).

(2)Increase load in steps from rated load, TO A MAXIMUM OF 200% of the rated load, attempting to lift load with each increase in weight. Hoist Overload Clutch should slip and refuse to lift load before 200% of the rated load is reached. Should hoist lift 200% of the rated load — STOP TEST — A CLUTCH ADJUSTMENT IS REQUIRED. (See paragraph 7-5 —

“OVERLOAD CLUTCH ADJUSTMENT”.)

(3)Run hoist with load causing clutch to slip (hoist refusing load) five cycles of approximately 1 second each.

CAUTION

To prevent overheating, release the hoist control button at once when the hoist refuses to lift the load.

(4)Remove weights added in step (2) and return to hoist rated load. Lift rated load one final time. Clutch should not slip.

WARNING

Do not lift more than rated load except for test purposes.

NOTICE

ALWAYS KNOW LOAD TO BE LIFTED, LIFT-TECH DOES NOT RECOMMEND LIFTING LOADS GREATER THAN THE RATED LOAD OF YOUR HOIST.

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Contents Including Rated Loads 1/2 Thru 5 TonsForeword IndexSection II Installation Section I General DescriptionPRE-OPERATION Checks Limit Stop Mechanism Being Tripped By Lower Block Operating Precautions Section III OperationPush Button Operation Lubricate Upper Sheave and Lower Block Assembly Section IV LubricationLubricate Limit Stop Lever Section Inspection and Preventive Maintenance Inspect Lower Block Inspect Upper Block and Hoist SuspensionInspection Schedule and Maintenance Report Time Interval Inspection or Maintenance Inspect Mechanical Load BRAKE, GearingRemoving Intermediate Gear Pinion Assembly Inspect Rope Drum and Shaft Rope INSPECTION, Maintenance and Replacement Rope ReevingTurn OFF Power to Hoist 12204A Testing Hoist and Overload Clutch Optional Do not lift more than rated load except for test purposes Section Vl Trouble Shooting Probable Cause Remedy Section Vl Trouble Shooting Probable Cause Remedy Section Vll Adjustments Section Viii Wiring Diagrams Section IX Parts ListIndex of Exploded View Parts Illustrations Part Qty Number Description Part Qty Number Description Req’d †Recommended spares 11456LC Gearing and Load Brake Parts. Cont’d 12756H Kit Description Part Number Reference Numbers Included Hoist Motor Brake Early Version Hoist Motor Brake. Cont’d Qty Req’d 11460 12748A Not available separately. Order Push Button Station 12721A Push Button Station and Conductor Cable Assembly. Cont’d 12721 10. Push Button Station and Conductor Cable Assembly. Cont’d 11. Lower Block Assembly Two Parts Rope, Single Reeved 12. Lower Block Assembly-Two Parts Double Reeved Quantity Required 14. Screw-Type Limit Switch Parts Warranty
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