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Table of Contents
Summary of Contents for LK LT Series
- Page 1 LT, LD- Series Electric chain hoist USER'S INSTRUCTION LK CO., LTD. - 1 -...
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Page 2: Table Of Contents
CONTENTS Ⅰ. Operator's Instruction LT,LD Type symbol classified by machine Chapter 1. Noteworthy for installing an electric chain hoist 1. Checkup points for installing 2. Check point for particular cases 3. Power 4. Working rate 5. Safety supervision 6. Checking HOIST SPARE PART 7. - Page 3 Ⅱ Repairing 1. Electric current operations 1. Grounding 2. Capacity of current switch and fuse 3. Depth of cap-tire 2. Checkup points for operating 1. Upper hook ・upper hook connector 2. Bottom hook part 3. Rubber buffer 4. Name plate 5.
- Page 4 Ⅰ. Operator's Instruction LT, LD Type symbol classified by machine * Please conform product's type number which you us "S" or "W" is for number of Chain. S = Single chain, W = Double Chain - 4 -...
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Page 5: Chapter 1. Noteworthy For Installing An Electric Chain Hoist
Chapter.1. Noteworthy for installing an electric chain hoist 1.Checkup before installing ● There are several check points as follow; 1) Model 2) Voltage (3 phase, Voltage 220V, 380V, 440V. 460V) 3) Proof load 4) Trolley type 5) Lift 6) Push button type 7) Power cable length 8) Operating instruction 9) Any damage during moving and loading... -
Page 6: All The Parts Of Body And Every Cases
7. All the parts of body & every cases *from the unpacking to setting up (1) LOAD CHAIN *Check out if the load chain in the pack is tied to wire ; which is to avoid mixed-up. Remove every pieces of wire, vinyl, tags and so on from the chain so that the hoist body can be free from the dust. - Page 7 * Let the chain back hang down from the electric chain hoist naturally. As the chain bag is packed, load chain would be pushed to be stuck in the chain hoist. It can make trouble and danger. Also it is dangerous if the chain bag is much longer than the load chain.
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Page 8: Notice : Trolley Adhered Case
(4) Body throbbing Chain hoist body is hang down from the hook or the trolley in natural to use. As the polygon shaped LOAD SHEAVE ,which delivers power to a load chain, spins to , it brings some throbbing. Do not let the body collide with or drive the chain hoist without HOOK. - Page 9 (3) No partial loading No matter there is a guide against the overturning, it is better to avoid partial loading. (4) Rank-rail. ◆Do not put painting to the trolley wheel, which directly connect with the rank-rail. ◆Connecting a rank-rail 1. Rank-rail should be connected around the up-holding of the rail.
- Page 10 avoid impact installing Stopper Limit switch operation. (Crain only) 5. Additional signal. Mark on the bottom to avoid operate failure and damage. - 10 -...
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Page 11: Chapter.2 Notice For Operating
Chapter2. Notice for operating 1. Do not over load Overloading is much the same as over speeding against the law. If the law regulate nothing but the 80km/h engines, it might lessen the traffic speed violations. However, It is almost impossible to deliver enough speed for a steep slant and even make low the fuel efficiency. - Page 12 (2) Safe and sound hanging up a hook * To lift load in safe, it is necessary to find an appropriate length and capacity of lifting sling , Do not forget to use enough capacity of lifting sling for each works.
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Page 13: Suspending And Lifting Up On Hook
4. Suspending and lifting up on a hook When you suspending and lifting up on a hook * The load chain of a chain hoist and sub hook should be tight enough. * Lift up the load a bit and be aware whether it is well balanced. -
Page 14: No Sudden Reverse
7. No sudden reverse Do not use the up-down button frequently. (see the picture 24) It increase more than the double weight in an instant, shortens the life of the body and the road chain extremely Reference * If repeated instantaneous load against load chain is bellow certain level, fatigue brake is not happened and if repeated instantaneous load against load chain is bellow certain level, fatigue brake can be happened... -
Page 15: Inching Handling, Travelling Load Collision
8. INCHING Handling, travelling load collision Inching handling (transitory button on-off work for a short shifting) or the collision of travelling loads should be restrained as far as it brings extra tension in flash. Also it shortens durability. It is better to use a hoist if you need to do a quick up -down shifting for placing a mold. -
Page 16: Notice : Trolley Adhered Case
12. Road chain condition check * Let the load chains free from knot. * Set right it before operating. * Set right for the more than double stripped of chain before operating. * As it stands closer to sandy, muddy dusty and so on, better to use light oil, On the other hand, if oil lack leads to the problem, it is better to use grease. - Page 17 Ⅱ. Repairing 1. Electric Current Operations 1.Grounding LT, LD style hoist has a line which goes from a power source to a motor. This line should be connected to a ground-wire. No matter there is a trolley, a green line among the four (a black, white, red and green) is a direct line.
- Page 18 When a power cap-tire is able to supply larger motor and is longer, it is should be thick enough. This graph shows the maximum power-output of a motor and maximum length of a cap-tire line. Four point button electric trolley type chain hoist with four point button length &...
- Page 19 3. buffer (Loaded unloaded parts) * For up keeping , change a buffer as soon as it is deformed or damaged. 4. Name plate *Is it easy to read and understand? Keep in clean. * The next two items are memorable for an order. Be sure to inform the name and serial no.
- Page 20 6. Road chain part * Is a chain lubricated fairly? * Isn't there any dead damage? * Isn't it tied or twisted? 7.Push button switch part * Isn't a case cracked or broken? * Does a button work smooth and make comeback? * Is it cleaned up? 8 Comprehensive checking up * Check up if the push button moves the chain hoist in order...
- Page 21 4. Monthly check point and instruction of changing parts. IMPORTANT * Periodic check should held with complete parts break down. * Before starting parts break down, please follow the instruction below. * Down hook should have any load for checking. * Down the chain until its chain bag hold 10㎝...
- Page 22 2. Chain Alteration and crack of chain. 1) Chain check Crack and vent of chain could damage to the hoist. Without any alteration and crack, Chain's wear is less than 10% which compare to standard chain diameter could be used. If the chain's shape and heat alteration could examine with the unaided eye, please change with new chain.
- Page 23 * Caution of changing chain. * Be careful with vertical link's welding side of chain. * Fixed link with chain stoper pin which prevent twist of chain for 2 falls should be set vertically. 3. Clutch/ Slip under it's standard lifting weight. (1) clutch in set with right pressure at the factory.
- Page 24 4.Chain anchorage bolt / Check it more than monthly (exclude for single chain) End of load chain is connected to the arm in case of hoist with double chains and is connected to the load block plate in case of hoist with three chains over. When chain anchorage bolt is inspected any deform, weight of hook block and load chain shall not be caused to hazards.
- Page 25 6. Gear Oil. *Just fill the oil about the half of the oil gauge of the side of gear case. (the picture 12 shows the minimum) * To replenish, use the enclosed funnel tube in a box. Disassemble the air bolt in the top of the gear case. assigned oil MOBIL VACTRA OIL No.4...
- Page 26 ● Hook scratch, abrasion, bend. If a hook is like the picture①②③ cases, should be changed, ♦Idle sheave rotation. idle sheave deform. (doesn't come within one chain) *If it is shows much impurities in idle sheave arbor bearing or a rotation. deform and clean it. 1.
- Page 27 (2) About a lower hook part If the hook-turning is not smooth enough (see the picture shows the items for test operating) or the there is more than 2mm gap as like the picture17, disassemble the lower hook part to exchange.
- Page 28 5. Assembling every pieces in a hoist 1. How to assemble a hoist . trolley 1) As you see the picture to the right, disassemble the upper hook pin, washer, and a fixed nut 2) As you see the picture to the right put the trolley connecter into a side plate of a hoist.
- Page 29 2. How to assemble a load chain step1. 1) Insert a thin wire through a chain whole and pull it out to the opposite direction. 2) Find a load chain to be joint and fix it to the end of the wire. And then, pull a opposite side of wire.
- Page 30 3, How to equip a chain bag Installation As the picture1 shows you, put the chain back connecter (No.121) up the stay bolt(c) (No.122) and then assemble the stopper pin. At this time, insert the stopper equipped load -chain in the chain bag . It is easier to arrange the chain.
- Page 31 4. Electric trolley installing - 31 -...
- Page 32 5. How to settle a trolley interval -For L.K chain hoist, settle a 12.5mm collar as follows: * Adjust the Collar according to the Beam - Put the same number of Collar for both sides Capacity Beam width The vol.of inside collar 0.5~1ton 2ton - 32 -...
- Page 33 6. How to set a clutch step1. Screw the 104 left to the 3rd gear (42) and then assemble the 47 and 73 by turns. Step2 Screw the82 left to the 42 and then assemble the 79,44, 80 and 81 by turns. Step3.
- Page 34 Step1. Assemble the 83 and 84 into the 88 Step2. Assemble the 90 to the 1st step above , and then assemble it again the 91.20.92,20 by turns and next, screw the 19 to the 88 to fix Step3. Push the 89 down to the 88 and fix it with 86 Step4 Assemble the 26 into the 25 and fix it with 23 Step5...
- Page 35 -crane for a store house, crane for freight 3.LK Hoist Co.,Ltd.'s group - groupⅠⅡ - 35 -...
- Page 36 6. Breakdown indications and solutions. ♦ immovable 1. noise : 1) power disconnection 2) Main circuit's non-conformity of electric connection 3) motor line disconnection 4) over loaded 2. soundless :1) doesn't connected to power 2) Poor transformer 3) button code disconnection, or poor connection 4) electric connector's non-conformity ♦Unstable running unscrewed enough or disconnected for wiring in cable...
- Page 37 * There are instructions for electric chain hoist as follow 1) Make a check if the type and grade become for electric chain hoist 2) Be sure to use an appropriate load chain.(Use LK product) 3) Do not operate the electric hoist except an appropriate voltage and frequency 4) Do not operate the electric hoist before grounded in perfect 5) Before install a hoist the first, be sure if it is inversely connected.
- Page 38 * LTU - EXPLODE VIEW - 38 -...
- Page 39 * LT, LD - TYPE PARTS CODE TABLE - 39 -...
- Page 40 * W-TROLLEY EXPLODE VIEW - 40 -...
- Page 41 * W - TROLLEY 1 TON TYPE HOIST ASSEMBLING - 41 -...
- Page 42 * W - TROLLEY 2TON TYPE HOIST ASSEMBLING - 42 -...
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- Page 46 * LT-TYPE HOIST DIAGRAM2-POINT TYPE - 46 -...
- Page 47 * LDS-TYPE HOIST DIAGRAM2-POINT TYPE - 47 -...
- Page 48 * W-TROLLEY (1SPEED) - 48 -...