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HOOK INSPECTION

Hooks damaged from chemicals, deformation or
cracks, or that have more than a 10 degree twist
from the plane of the unbent hook or excessive
opening or seat wear must be replaced.

Also, on latch type hooks, hooks that are opened
and allow the latch to disengage the tip, must be
replaced.

Any hook that is twisted or has excessive throat
opening indicates abuse or overloading of the unit.
Other load sustaining components of the hoist
should be inspected for damage.

Check to assure latch is not damaged or bent and
that it operates properly with sufficient spring
pressure to keep the latch tightly against the tip of
the hook and allow the latch to spring back to the
tip when released. If the latch does not operate
properly, it should be replaced.

The charts below (Figures 7 and 8) should be used
to determine when the hook must be replaced.

LOAD CHAIN
Cleaning and Inspection

First clean the load chain with a non-acid or non-caustic
type solvent, then slack the chain and make a link-by-link
inspection for nicks, gouges, twisted links and excessive
wear or stretching. Worn chain should be gaged through-
out its entire length and replaced if beyond serviceable
limits. Also, these chains are specially heat treated and
hardened and should never be repaired.

Using other than a Yale supplied load chain may
cause the chain to jam and this, in turn may break
the chain and allow the load to drop.

To Avoid Injury:

Use only Hoistaloy

®

load chain in the Yale LH2 Hand

and Low Headroom Trolley Hoists.

Gaging Load Chain Wear

To determine if the load chain should be continued in
service, check gage lengths as indicated in Figure 9.
Chain worn beyond length indicated, nicked, gouged
or twisted should be replaced before returning the
hoist to service. Chain should be clean, free of twists
and pulled taut before measuring. To aid in checking
gage length, Yale can provide a chain gage. This can
be obtained by ordering chain gage part number 3191.

Worn load chain may break suddenly without visual
deformation.

To Avoid Injury:

Never use load chain for any other purposes such as
slings or tow chains. Cut worn chain into short
lengths to eliminate use after disposal.

FIGURE 7. Latch Hook Opening

FIGURE 8. Latchlok Hook Opening

FIGURE 9. Gaging Load Chain Wear

6

WARNING

WARNING

!

!

For more information contact: Sievert Crane and Hoist, (708) 771-1600, [email protected], www.sievertcrane.com

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Содержание LH2

Страница 1: ... 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 operator Failure to operate equipment as directed in manual may cause injury LH2 HAND HOIST AND LOW HEADROOM TROLLEY HOIST 414 WEST BROADWAY AVE MUSKEGON MICHIGAN 49443 Before installing hoist fill...

Страница 2: ...ocated in the United States These facilities have been selected on the basis of their demonstrated ability to handle all parts and repair requirements promptly and efficiently To quickly obtain the name of the Authorized Parts Depot or Repair Station located nearest you call 866 805 2962 Fax 800 742 9270 NOTES For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric ...

Страница 3: ...ual loading on all load supporting chains 15 NOT operate beyond the limits of the load chain travel 16 NOT leave load supported by the hoist unattended unless specific precautions have been taken 17 NOT allow the chain or hook to be used as an electrical or welding ground 18 NOT allow the chain or hook to be touched by a live welding electrode 19 NOT remove or obscure the warnings on the hoist 20 ...

Страница 4: ...iii For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric com www sievertcrane com ...

Страница 5: ...H2 Hand Hoist except the frame aluminum on the 1 2 through 3 ton units and cast iron on the 4 through 6 ton units which is designed to provide low headroom and attachment to the trolley The trolley has a rugged frame cast iron on the 1 2 through 1 ton units and steel plates on the 1 1 2 through 6 ton units Crowned tread flanged trackwheels are provided to minimize rolling friction Hardened pressed...

Страница 6: ...any properly maintained Yale Hoist develops a performance problem due to a material or workmanship defect as verified by Yale or an authorized service station repair or replacement of the unit will be made to the original purchaser without charge This repair replacement policy applies only to Yale Hoists installed maintained and operated as outlined in this manual and specifically excludes parts s...

Страница 7: ...ith a capacity load over the entire length of runway or monorail system to be sure that all adjustments and operations are satisfactory When applying a load it should be directly under the trolley Avoid off center loading of any kind Side loading may spread trolley side frames On systems with curves the edges of the rail at the curved sections should be lightly lubricated with grease An excessivel...

Страница 8: ...a load in their area Do not leave the load suspended in the air unattended Do not lower the hook to a point where the chain becomes taut between the liftwheel and loose end screw See Troubleshooting Item 5C The Yale LH2 Hand Hoist and Yale Low Headroom Trolley Hoist have been designed for manual operation only Power operation may result in structural damage or premature wear that may cause a part ...

Страница 9: ... 4 8 and 10 ton units and dead end screw on 5 and 6 ton units d External evidence of damage to hooks hook nuts or collars and hook nut or collar pins e External evidence of damage or excessive wear of the pockets of the liftwheel handwheel hook block sheaves and hanger sheaves f External evidence of worn glazed or oil contaminated friction discs scoring of handwheel hub ratchet and friction hub g ...

Страница 10: ... should be gaged through out its entire length and replaced if beyond serviceable limits Also these chains are specially heat treated and hardened and should never be repaired Using other than a Yale supplied load chain may cause the chain to jam and this in turn may break the chain and allow the load to drop To Avoid Injury Use only Hoistaloy load chain in the Yale LH2 Hand and Low Headroom Troll...

Страница 11: ... lubricant for the load chain The hoist normally requires no additional lubri cation except when a unit has been disassem bled for cleaning or repairs see page 8 NOTE The brake is designed to operate dry Do not use any grease or lubricant on the braking surfaces On reassembly when lubricating parts adjacent to the brake do not use an excessive amount of lubricant which could seep onto the brake su...

Страница 12: ... gauge After it is determined which end of the hole is the largest arrange the parts so that the large holes are aligned and insert the small end of the pin into the hole Push the pin in by hand until it stops and then use a hammer or slow acting press to drive the pin into position so that the end of the pin is flush with the outside surface of the hook block body upper hook collar or hoist hange...

Страница 13: ...after the handwheel has started to slip When properly adjusted the average pull should be as indicated in Table 3 If the average pull is low turn the adjuster nut one notch clockwise and repeat the pull opera tion Do this until the correct value is obtained then bend the lockwasher tang into the locknut notch Load Limiter is now ready for service If the handwheel does not slip or the pull is too h...

Страница 14: ...prevent the load chain from being jammed between the liftwheel and frame Remove the wire and attach the loose end of chain to the hoist using the loose end screw and washer see Figure 16 The chain must not be twisted between the liftwheel and loose end screw 10 FIGURE 16 Reeving fi 1 Ton Hoists Mount hoist in a vertical position and check that the lower hook is on the same side of the liftwheel as...

Страница 15: ...d on edge be upstanding FIGURE 17 Reeving 1fi 10 Ton Hoists FIGURE 18 Reeving 3 4 Ton Hoists 5 6 Ton Hoists Load chain must have an even number of links Check at each stage of assembly to be sure chain has no twist Attach approximately 20 inches of wire to one end of the load chain Feed the wire around the liftwheel as shown in Figure 17 until the first link starts over it The first link must lay ...

Страница 16: ...ing sequence 1 Down around the lower hook block sheave 2 Up around the hoist hanger sheave 3 Down around the second hook block sheave 4 Up the the hoist hanger Secure end of chain to the chain anchor with the dead end pin The first link around the hook block sheaves must stand on edge and the first link around the hoist hanger sheave must lay flat Loose End of Chain Hand Chain omitted for clarity ...

Страница 17: ...3 similar to the H K Porter No 0590MTC with special cutter jaws for cutting hardened chain 1 inch long cutting edge FIGURE 23 Cutting Chain with a Bolt Cutter Cutting chain can produce flying particle To Avoid Injury Wear eye protection Provide a shield such as a heavy rag over the chain to prevent flying particles TESTING Prior to initial use all altered or repaired hoists or used hoists that hav...

Страница 18: ... Worn brake parts F Oily dirty or corroded brake friction surfaces REMEDY A Check gage of chain see Page 6 Replace if worn excessively B Clean by tumble polishing or using a non acid or non caustic type solvent Lubricate with Lubriplate Bar and Chain Oil 10 R Fiske Bros Refining Co or equal lubricant C Check chain for gouges nicks bent or twisted links Replace if damaged D Clean out pockets Replac...

Страница 19: ...perties For parts orders also specify 1 Quantity desired 2 Key number of part 3 Part name 4 Part number When ordering replacement parts consideration should be given to the need to replace other items bearings fasteners gaskets etc Items that may be damaged or lost during disassembly or just unfit for future use because of deterioration from age or service Parts should be ordered from Yale s Autho...

Страница 20: ...n Handwheel Cover Screw Liftwheel with Bearings Items 646 16A thru 646 16D Not Shown Liftwheel Liftwheel Bearing Handwheel End Liftwheel Bearing Gear End Liftwheel Snap Ring Frame Bearing Retainer Frame Bearing Retainer Screw Liftwheel Gear Liftwheel Gear Key Liftwheel Gear Snap Ring Gear Cover with Capacity Insert Capacity Insert Capacity Insert Pin Gear Cover Screw Gear Cover Gasket Loose End Sc...

Страница 21: ...Hook and Block Assembly Latch Type Hook Lower Hook with Latch Latch Type Hook Lower Hook Latchlok Type Hook Hook Block Body Lower Hook Thrust Bearing Lower Hook Nut Lower Hook Nut Pin Lower Hook Chain Block Hook Block Pin Load Chain Specify Lift or Length Req d Hand Chain Specify Lift or Length Req d Load Limiter Complete Handwheel Sub Assembly Load Limiter Hub Friction Washer Steel Washer Spring ...

Страница 22: ...ead End Pin Reeving Caution Plate Capacity Insert I D Label Capacity Ton 1 4 1 2 1 1 1 2 2 3 4 5 6 8 10 Part Number 45394 45393 45410 983787 983788 940834 945836 88507 88511 45090Y 45091Y 45094Y 986304 987223 987179 945916 983789 45391 45123Y 45124Y 45134Y 8T 45085 45106 88542 83670 45765 45151 45425 89411 987919 45107Y 3T 45096Y 4T 45101Y 45104Y 945796 45812 945820 945822 945851 945853 45086 4510...

Страница 23: ...sket Trolley Hoist Qty for each Hoist in service 1 1 1 1 1 2 1 1 1 To insure continued service of the Yale LH2 Hand and Low Headroom Trolley Hoist the following is a list of the parts that are recommended to be kept on hand at all times to replace parts that are worn Refer to page 15 for ordering instructions and parts lists for part numbers 19 NOTES For more information contact Sievert Crane and ...

Страница 24: ...20 For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric com www sievertcrane com ...

Страница 25: ...Yale 21 For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric com www sievertcrane com ...

Страница 26: ...22 For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric com www sievertcrane com ...

Страница 27: ...23 For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric com www sievertcrane com ...

Страница 28: ...24 For more information contact Sievert Crane and Hoist 708 771 1600 parts sievertelectric com www sievertcrane com ...

Страница 29: ...Nut L W Main Frame Load Chain Guide Load Chain Guide Screw Load Chain Guide Screw L W Stripper Stripper Screw Stripper Screw L W Handwheel Shaft and Pinion Handwheel Shaft Bearing Handwheel End Handwheel Shaft Bearing Gear End Handwheel Shaft Nut Handwheel Cover Screw Liftwheel Liftwheel Bearing Handwheel End Liftwheel Bearing Gear End Liftwheel Snap Ring Frame Bearing Retainer Frame Bearing Retai...

Страница 30: ...ey Trolley Handwheel Trolley Handwheel Key Handwheel Bracket with Bushings Handwheel Bracket Bushing Handwheel Bracket Screw Handwheel Bracket Screw L W Trolley Hand Chain Guide Trolley Hand Chain Guide Screw Trolley Hand Chain Guide Screw Nut Trolley Hand Chain Guide Screw L W Trolley Hand Chain Guide Screw Washer Trolley Handwheel Shaft Trolley Handwheel Shaft Nut Trolley Handwheel Shaft L W Tro...

Страница 31: ...aintained inspected or used in compliance with applicable law and Seller s written instructions and recommen dations or 3 installed repaired altered or modified without com pliance with such law instructions or recommendations UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES AS THOSE TERMS ARE DEFINED IN SECTION 2 715 OF THE UNIFORM COMMERCIAL CODE INDEMNIFICAT...

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