GT MK2 User manual

George Taylor & Co Lifting Gear (Midlands) Ltd
GT Manual Heavy Duty Chain Hoist MKII
NOTE: Owner and Operator must read and understand this instruction manual before using the Manual Hoist.
Contents
1. Preface
2. Safety Instruction
3. Specification
4. Installation and Operation
5. Inspection and Maintenance
6. The Methods for Maintenance and Inspection
7. Criteria for Using and Checking Chain Hoists
THANK YOU VERY MUCH FOR SELECTING A HEAVY DUTY GT MANUAL HOIST!
This instruction manual describes the correct operating method to ensure a prolonged service life. Please read and completely understand this manual before
operating the Manual Hoist. Always keep this manual in an appropriate place. If the manual of warning decal is missing, please contact your Supplier.
NOTE: All information reported herein is based on the data available at the time of printing. The factory reserves the right to modify its own products at any time
without notice or incurring in any sanction. Please verify with George Taylor and Company Lifting Gear for possible updates.
1. Preface
This manual hoist is a portable lifting device easily operated by hand chain. It’s suitable for use in factories, mines, farms, construction sites, wharves, docks
and warehouses for installation of equipment, as well as for loading and unloading goods. It’s specially advantageous for lifting work in open air grounds and
places where no power supply is available.
The manual hoist can be attached to a trolley of any type as a travelling chain block. It is suitable to use on monorail overhead conveying systems, hand
travelling cranes and jib cranes.
2. Safety Instruction

●All persons involved must read this handbook and be completely familiar with all operating and maintenance procedures.
●Do not exceed the rated load limit. Overloading may cause a hoist failure.
●Do not use power devices to operate the hoist, it is designed for manual operation only.
●Do not attempt to repair the chain. Replace it with new steel welded chain of the same size and strength.
●Lubricate the chain with good quality light oil or chain oil before use.
●Do not lubricate the internal braking surfaces. The brake must be kept dry.
●Make sure the load chain has no twists in the chain sprocket, guide, and the vertical hanging length. If there is a twist, disassemble and thread the
chain through the guide and chain sprocket.
●Make sure the load chain is attached to the loose end pin before each use.
●Stand in the same plane or at the same angle as the wheel when pulling the hand chain. Do not pull at an oblique angle. Keep safe footing at all times.
●Do not lift loads over people. Do not allow anyone to walk under the load. Warn personnel before lifting a load.
●Do not use the hoist to lift people.
●Avoid off-centre loading. Balance the weight evenly.
●Pull the hand chain steadily and smoothly to prevent jerking or tangling.
●Seat the load firmly in the hook. Do not try to lift with the tip of the hook.
●Do not wrap the chain around the load. Balance the load weight evenly.
●Pull the lever handle chain steadily and smoothly to prevent jerking or tangling.
●Raise the load only enough to clear the support surface. Check for any malfunction or obstructions before continuing the lift.
●If the chain jams or the lever handle cannot be pulled any further, stop, inspect and correct the problem. Do not try to force the hoist.
●Do not leave the load suspended in the air.
●Do not lower the load beyond the usable chain length. Pulling the chain tight against the chain sprocket will cause damage.
●Do not allow the load to contact the hoist. This will block the swivel and may cause damage, twisted chains, or a jammed wheel.
●Perform periodic inspection and maintenance. Replace all damaged or malfunctioning parts.
●Test the hoist function thoroughly in both with load or without load situation, before returning it to normal operation.
●Do not touch the selector switch when the hoist is in operation.
3. Specification
Table 1
Model CH25 CH50 CH100 CH150 CH200
Capacity KG 250 500 1000 1500 2000

Standard lift m 205 2.5 2.5 2.5 2.5
Load chain falls 11111
Load chain mm ø4X12 ø5X15 ø6X18 ø7X21 ø8X24
Effort force N 235 240 250 265 335
A mm 121 147 172 196 210
B mm 114 132 151 173 175
Dimensions C mm 21 23 27 33 35
D mm 31 35 40 45 50
Hmin mm 280 345 376 442 470
Net Weight KG 6.2 11 12.5 17.8 19.5
Model CH300A CH300B CH500 CH750 CH1000 CH1500 CH2000
Capacity KG 3000 3000 5000 7500 10000 20000 20000
Standard lift m 3333333
Load chain falls 1223468
Load chain mm ø10X30 ø7X21 ø10X30 ø10X30 ø10X30 ø10X30 ø10X30
Effort force N 372 290 365 370 385 390 390
A mm 255 230 280 463 463 420 630
B mm 205 176 189 189 189 208 220
Dimensions C mm 39 39 45 54 54 82 82
D mm 55 55 65 75 75 106 106
Hmin mm 548 565 688 690 700 950 1100
Net Weight KG 35 29 41.3 62 78.5 135 190
4. Installation and Operation
Installation
The support structure (such as buildings) on which the hoist body works is to bear 4 times of the rated load capacity of the unit .
4.1 Proper Handling and cautions for slinging methods
1. How to apply an incorrect load to the hook i.e.Incorrect slinging (Avoid the examples below):1.

2. Never wind a load chain directly around a load regardless of its weight. It is quite dangerous, since the load chain may be broken. (fig.1) It is
dangerous to wind the load chain around the hook of a chassis etc. because the strength of the chain will be reduced to 1/3 to 1/5 of the normal value.
(Fig.2)
2.
3. The load chain should not be loaded when twisted. As the bearing capacity of the chain will be greatly reduced in a twisted state.3.
4. Be sure to bring the load chain into a straight line before applying a load (Fig.3)4.
Cautions during operation:-
5. Do not get on a load that is to be lifted and do not stay under a load lifted.5.
6. It is prohibited by law to get on a load lifted by the chain hoist. (Fig.4)6.
7. Do not apply an overload to the chain hoist, that is, do not apply a load exceeding the number of tons (rated load) indicated on the nameplate. (Fig.5)7.
8. Do not give an impact to the chain hoist. Severe accidents may happen, if a load suddenly falls regardless of the height and gives a shock to the
chain hoist. (Fig.6)
8.
9. Do not perform over-winding (Fig.7)9.
10. Do no apply a bending force to the hook of the chain hoist. Such handling ways as shown in Fig. 8 are very dangerous and should be absolutely10.

avoided. The hook clearly deformed as shown in Fig. 9 should be scrapped and exchanged with a new and genuine one.
11. Always take care with the manipulation of the hand chain. It should be avoided that the hand chain will be abruptly jammed when it is manipulated
with or without a load or a load is lifted by means of another power. In this case, the hand chain will be partially deformed or damaged.
11.
5. Inspection and Maintenance
5.1 Daily Inspection
●For daily operation, be sure to carry out the following checks prior to operation.
●In case of any abnormality or concern, stop operating the hoist until and take proper counter-measures by ,a specialist possessing
enough knowledge of the unit or by a dealer of GT products.
●Do not allow continuous running of the unit under abnormal conditions as it is very dangerous and might lead to a severe accident.
1. Check if the end of the load chain without hook (chain stopper pin end ) is fixed correctly. Check to see if the chain stopper pin is not deformed and
that it rotates smoothly.
1.
2. Are firm connections made between the top hook and the hoist body, the body and the load chain, and the load chain and the bottom hook
respectively?
2.
3. Are visually ,no deformations of the top and bottom hooks noticed?3. 4. Are any parts missing? Are no severely deformed portions noticed of any part ?4. 5. Is the load chain well lubricated? Does it show any remarkable damages ,deformations or wear marks ?5. 6. Check whether the hand chain runs easily and smoothly on operation and that a smooth ratchet sound is heard during lifting.6.
●Immediately stop operating the chain hoist and make a full repair of it, when such abnormalities as mentioned above (item 1 through 6)
are found.
5.2 Periodic inspection
In case of and functionality trouble and/or any abnormality, stop operating the hoisting unit and take proper counter measures by a specialist , competent
repairer possessing enough knowledge of the unit or by a dealer of GT products. It may happen that the load chain and the hooks fall in a dangerous state even
if they show no remarkable changes in their function. It is therefore indispensable to make a periodic measuring check based on “the Methods for Maintenance
and Inspection” as stated in this information brochure.The periodic inspection should be normally made once a month or in line with the legal requirements of the
country that the unit is being used within . Exchange damaged or deformed parts only with new ,authorised ones.
6. The Methods for Maintenance and Inspection
●Do not use parts of and /or the chain hoist over the limit of its designed use.
●If any worn parts are found in excess of the standard limit of use as stated below in carrying out the daily and periodic voluntary inspections, they
should be replaced.
●When replacing load chains, be sure to use the load chain manufactured by us. Load chains manufactured by any others are not applicable with this
unit.
6.1 Checking the load chain and its lifetime.
It is important to carefully inspect the whole chain. For checking the elongation, measure the inner length of 5 links with a vernier caliper as the sketch shows. It
is normally sufficient to check the links in a distance of approx. every 50cm but check them by making the measuring distance shorter when the elongation of
the chain is close to the limitation for use stated in Table 2 , so that none of them will exceed the limitation for use. Exchange the load chain with a new one, if it
is found by visual checks to be clearly influenced by higher temperatures or to be clearly deformed or worn . Furthermore, do not weld at any point near or on
the load chain or the hoist itself.
Limitation of the deformed load chain for use (Table 2)
Rated load (kg) Linkdiameter- Px5mm(new
chain) Limitation of Px5(mm) for use
250 Ø4x60 61.2
500 Ø5x75 76.5
1,000 Ø6x80 81.6
1,500 Ø7x105 107
2,000 Ø8x120 122
3,000 Ø10x140 142.8
3,000 Ø7x105 107

5,000 Ø10x150 152
7,500 Ø10x150 152
10,000 Ø10x150 152
15,000 Ø10x150 152
20,000 Ø10x150 152
6.2 Checking the hook and its allowable safe use
●When the dimension shown by “A” in the sketch has exceeded the limitation specified in Table 3, the hook should be replaced with a new genuine one.
Do not forget to set the split pin correctly when re-assembling the hook and the stop bolt.
Rated load (kg) Value A on newhook(mm) Limit value A (mm)
250 21 22
500 23 24.15
1,000 27 28.35
1,500 33 34.65
2,000 35 40.9
3,000 39 47.7
5,000 45 47.25
7,500 54 56.7
10,000 54 56.7
15,000 82 84
20,000 82 84
7. Criteria for Using and Checking Chain Hoists
7.1 Criteria for use
1. Make sure that the class of the chain hoist is fit for conditions of its use.( Grade Identification , ID markings etc )1. 2. The chain hoist should not be used to lift a load exceeding the rated load except for testing purpose.2.
3. Do not use a bottom hook which is not equipped with a safety latch or that is fitted with a latch that has no safety effect.3. 4. Do not use a chain block on which the chain stoppers are missing.4. 5. Do not wind the load chain directly around a load.5. 6. Do not quickly pull , jerk or force the hand chain when lifting and lowering a load.6. 7. Do not perform over-lifting and over-lowering.7. 8. Avoid an operation of so-called earth lifting.8. 9. Before each operation check the load chain for twisting or tangling.9. 10. The chain hoist can be used only after such twisting and tangling are corrected.10. 11. When the chain hoist is used in special conditions such as lower or higher temperatures, or corrosive atmosphere, etc., consult the Supplier before
the use.Such conditions could cause hydrogen embrittlement and are not allowed for this product .
11.
12. The chain hoist should not be modified by the users.12. 13. Do not leave the chain hoist for many hours with a load suspended.13. 14. Make a routine safety inspection before each use.14. 15. Immediately stop operating the chain hoist when an abnormally big pulling force for the hand chain is required.15. 16. Apply a lubricant to the load chain before use.16. 17. Use the chain hoist, applying lubricants to its gears, bearings, which are liable to wear.17. 18. Consult us whenever special usage of the chain hoist is required.18.
7.2 Criteria for check
1. Use the chain hoist by checking it daily(1) and periodically(2).1. 2. Refer to Table 4 which gives check items, check methods and check criteria to be used in the daily check. However, items other than those specified
should be also checked, when the chain hoist is frequently used, or in special cases.
2.
3. When the chain hoist is repaired, check it on periodic check items given in Table 4 after its repair, and make notes.3.

Note: (1) Refer to checking before use.
(2) Periodic check is usually made at intervals of one month , six months or one year depending on the frequency of use and the legal requirement of
the user or the law that is applicable in the country of use.
4. Check the items with the mark “✓” in table 4.(i.e. Parts List detailed below)4.
Part list for chain block:
No. Description 0.25t 0.5t 1t 1.5t 2t 3t 3t(S) 5t 7.5t 10t 15t 20t
1 Handwheelcoverassembly ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
2 Handwheel ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
3 Brakecover ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
4 Friction plate ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
5 Ratchet disc ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
6 Brakeseat ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
7 Lockplate ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
8 Toppin ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
9 SideplateassemblyB ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
10 Chainsprocket ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
11 SideplateassemblyA ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
12 Spindle gear ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
13 Drivenshaftassembly ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
14 Driving shaft ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
15 Gearcaseassembly ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
16 Nameplate ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
17 Suspensionplate ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
18 Stripper ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
19 Guide roller ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
20Loadchain ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
21 Pawl spring ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
22 Pawl ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
23 Handchain ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
30 Tophookassembly ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - - - -

31 Double spring ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
32 Safetylatch ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
33 Chain pin ✓ ✓ ✓ ✓ ✓ ✓ - - - - - -
34 Bottomhookassembly ✓ ✓ ✓ ✓ ✓ ✓ ✓ - - - - -
34 Chain pin - - - - - - - - ✓ ✓ - -
35 Chain pin - - - - - - ✓ ✓ - - - -
35 Hookhangercomponent - - - - - - - - ✓ ✓ ✓ ✓
36 Idlesheaveassembly - - - - - - ✓ ✓ ✓ ✓ ✓ ✓
37 Hookhangercomponent - - - - - - ✓ ✓ - - - -
37 Hookassembly - - - - - - - - ✓ ✓ ✓ ✓
38 Bottomhookassembly - - - - - - ✓ ✓ - - - -
38 Beamassembly - - - - - - - - ✓ ✓ ✓ ✓
40 Idlesheavepin - - - - - - - - ✓ ✓ ✓ ✓
41 Idlesheavepinplate - - - - - - - - ✓ ✓ ✓ ✓
42 Hookpin - - - - - - - - ✓-✓ ✓
52 Screw - - - - - - - - ✓ ✓ ✓ ✓
53 Springwasher - - - - - - - - ✓ ✓ ✓ ✓
60 Prevailingtorquetypenut ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
61 Split pin ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
62 Hexagonalcastlenut ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
63 Screw ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - - - -
64 Springwasher ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
65 Snapring ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
66 Snapring - - - - ✓ ✓ -✓ ✓ ✓ ✓ ✓
67 Prevailingtorquetypenut ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
68 Screw ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
69 Snapring ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
70 Prevailingtorquetypenut ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
71 Rivet ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
72 Split pin ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
73 Pin ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
74 Prevailingtorquetypenut ✓ ✓ ✓ ✓ ✓ ✓ - - - - - -
75 HexagonalScrew - - - - - - ✓ ✓ - - - -
90 BearingA ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
91 Pinbearing - - - - ✓ ✓ -✓ ✓ ✓ ✓ ✓
92 BearingB ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
93 Bearing C - - - - ✓ ✓ -✓ ✓ ✓ ✓ ✓
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