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NITCHI-MATIC

ELECTRIC CHAIN HOIST

MODELS

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MH-5

•

MHT-5

•

MHC-5

TROLLEYS (MECHANICAL JOINING TYPE)

MODELS: M-ET-5, M-GT-5 AND M-PT-5

Operating Instructions Booklet

The hoist operator must receive this operating instructions booklet!

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Thoroughly read this operating instructions booklet before operating the
trolley and electric chain hoist.
Carefully store this operating instructions booklet after reading it.
This operating instructions booklet contains important information that will be
necessary when inspecting and maintaining the trolley and electric chain hoist.

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The hoist operator must read this operating instructions booklet!

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The above information will be required when purchasing spare parts and when making inquiries.
Copy them from the name plate on the hoist and save them for future reference.

Customer’s notes:

N.B.

Model
Serial No.
Date Purchased

1
2
3
...
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Содержание M-ET-5

Страница 1: ... hoist Carefully store this operating instructions booklet after reading it This operating instructions booklet contains important information that will be necessary when inspecting and maintaining the trolley and electric chain hoist The hoist operator must read this operating instructions booklet The above information will be required when purchasing spare parts and when making inquiries Copy th...

Страница 2: ...ions In this instructions booklet you find two cate gories of warning DANGER and CAUTION EXPLANATION OF THE WARNINGS DANGER DANGER are incorrect usages that can lead to death or serious injuries CAUTION CAUTION are incorrect usages that can lead to light injuries or property damage Situations classified as CAUTION may result in serious conditions in some cases Precautions must be obeyed no matter ...

Страница 3: ... ALWAYS Check the safety latches to see if they work properly Broken and missing safety latches must be replaced immediately ALWAYS Use genuine NITCHI parts and chains NEVER Modify the hoist NEVER Use modified or deformed hooks NEVER Use a hoist when malfunction unusual performance damage or extensive wear are found NEVER Abuse the over hoisting over lowering limit switch mechanism by using it reg...

Страница 4: ...neath it NEVER Use the hoist with twisted kinked damaged or worn chain and never attempt to lengthen the load chain NEVER Use the load chain as a sling and never apply the load to the tip of the hook NEVER Use the load chain so that it comes in to contact with an edge NEVER Allow the chain or hook to be used as a ground for welding and never touch them with live welding electrodes NEVER Abuse the ...

Страница 5: ...E TABLE 32 3 CONDITIONS OF USE The MH 5 Series electric chain hoists and trolleys are designed for the vertically lifting lowering and ho rizontal transportation of loads by operating the pendant push button switch and must be used within the following conditions 1 Power source As specified on name plate of the electric chain hoist and motorized trolley 2 Trolley beam Trolley to be used only on th...

Страница 6: ... 17 1 4 7 1 1 1 25 560 55 M4 MH5020 2 6 7 7 9 2 5 3 0 11 2 1 2 5 725 100 M5 MH5030 3 4 4 5 2 2 5 3 0 11 2 1 3 75 765 102 M4 MH5050 5 2 6 3 1 2 5 3 0 11 2 2 6 25 925 130 M4 Item No Rated load ton Major dimensions approx mm A B D E F P Q S m MH5005 0 5 265 285 152 106 20 690 220 3 6 MH5010 1 285 285 152 106 25 690 220 3 6 MH5020 2 335 335 195 127 30 860 235 3 8 MH5030 3 335 335 195 127 36 880 235 3 ...

Страница 7: ...2 1 20 10 24 12 0 4 100 125 150 1 5 3 75 805 172 MHE5050 5 2 6 3 1 2 5 3 0 11 2 2 20 10 12 24 0 4 0 75 125 150 175 1 5 6 2 975 219 Item No Rated Load ton Major Dimension approx mm A B D E F H I J K L M N U P Q S m MHE5005 0 5 265 285 152 106 20 b 2 280 b 2 230 127 240 32 t2 b 49 0 69 99 t2 675 220 4 0 MHE5010 1 285 285 152 106 25 b 2 280 b 2 230 127 240 32 t2 b 49 0 69 99 t2 675 220 4 0 MHE5020 2 ...

Страница 8: ...m Net Weight kg H I mm Net Weight kg MHG5005 MHP5005 0 5 265 285 152 106 20 110 206 24 t2 b 42 062 80 t2 655 220 3 6 4 0 b 2 189 105 72 t2 71 105 61 MHG5010 MHP5010 1 285 285 152 106 25 110 206 24 t2 b 42 062 80 t2 655 220 3 6 4 0 b 2 189 105 72 t2 73 105 63 MHG5020 MGP5030 2 335 335 195 127 30 140 262 28 t2 b 63 083 102 t2 845 235 3 8 4 0 b 2 150 127 115 t2 126 127 116 MHG5003 MHP5030 3 335 335 1...

Страница 9: ... 1 83 2 2 0 46 0 55 11 2 1 2 5 725 103 M5 MT5025 2 6 3 8 4 4 1 0 1 1 1 83 2 2 0 46 0 55 11 2 1 3 125 765 105 M4 MT5050 5 1 9 2 2 0 5 0 6 1 83 2 2 0 46 0 55 11 2 2 6 25 925 133 M4 STANDARD SPECIFICATIONS MHT 5 2 Speed Electric Chain Hoist Single voltage Item No Rated Load ton Major Dimension approx mm A B D E F P Q S m MT5005 0 5 305 285 152 106 20 795 220 3 6 MT5010 1 305 285 152 106 25 795 220 3 ...

Страница 10: ...Output kW Rating min ED Dia mm Nos of falls MC5005 0 5 4 0 5 4 6 4 0 62 15 25 7 1 1 0 625 550 58 M5 MC5010 1 2 7 3 2 1 1 25 560 58 M4 Item No Rated Load Major Dimensions approx mm A B D E F P Q S m MC5005 0 5 305 285 152 106 20 690 220 3 6 MC5010 1 305 285 152 106 25 220 Notes 1 Values marked will differ in accordance with the height of lift 2 The specifications in the above tables are subject to ...

Страница 11: ...lly when the hoist is used in an area where dust and foreign matter can enter the chain bucket assembly Open the split pin as shown in the drawing Chain buckets dimensions mm Steel Chain buckets dimensions mm Chain bucket application table No A B C D 1 260 170 150 65 2 365 200 3 350 240 185 85 4 420 260 5 65 No A B C D E S1 500 200 200 300 250 S2 600 200 200 300 300 S3 700 220 200 340 350 S4 800 2...

Страница 12: ...s applicable 1 Always install a circuit breaker The circuit breaker must be exclusively for the hoist and independent from other machinery 2 Select an adequate capacity circuit breaker from Table 5 Gear wheel Pinion Oil leber Oil extractos plug Oil cap Oil extractors plug Oil of adequate quantity Oil extractors plug Type of hoist Capacity MH 5 MHT 5 MHC5 0 5 1t MH 5 2 5 t MHT 5 2 5 t Applicable oi...

Страница 13: ...d Size of Cable Model Rated load t Hoist motor kW 50Hz 60Hz Traversing motor kW Cable size mm2 MAX length Cable length m MH 5 0 5 0 83 1 0 1 1 17 1 4 2 5 2 5 3 0 MHE 5 0 5 0 83 1 0 0 2 1 1 17 1 4 2 5 2 5 3 0 0 4 5 1 0 75 MHT 5 low speed high speed 0 5 1 0 21 0 83 0 25 1 0 1 25 MAX 118 7 m 2 5 0 46 1 83 0 55 2 2 MHTE 5 Low speed High speed 0 5 1 0 21 0 83 0 25 1 0 0 2 1 25 MAX 86 m 2 5 0 46 1 83 0 ...

Страница 14: ...eces of Adjusting collars inside of the Side Plates 2 pieces of Adjusting collars inside of the Side plates Incorrect installation of the adjusting collars Adjusting Collars Applicable beam widths mm 0 pieces 2 pieces 4 pieces 0 5 1 75 100 125 2 3 100 125 150 5 125 150 175 Rated load t Collars inside of the side plate Table 7 Wheel Wheel Trolley beam Side plate Side plate Stay bolt and Hexagonal n...

Страница 15: ...he Plain side plate Set the Geared wheels on to the tread section of the trolley beam While holding the Geared wheels in position insert the Plain side plate so that the Plain wheels will be in position on the tread section of the trolley beam Firmly tighten the Hexagonal nuts of the Plain side plate side of the Stay bolts When the trolley beam is curved install the trolley so that the geared whee...

Страница 16: ... Top hook pin Open the Split pin as shown in the drawing Insert into the hole Top hook pin Insert the Top hook pin as shown in the drawing Connect the trolley to the electric chain hoist as shown in the drawing and be sure that the trolley and elec tric chain hoist are both facing the correct direction Direct coupled electric trolleys are delivered coupled to hoists and no connecting procedures ar...

Страница 17: ...careful not to twist the power source cable lnstall cable carriers at every 1 5 meters length of the power source cable The connections of the Power source cable must only be made at the Hoist Termi nal box and Power source switch Do not use Power source cables that are lengthe ned with connections The following power source feeding method can be used in place of the Messen ger wire method Please ...

Страница 18: ...own in the circuit diagram Connect one of the three wires to the grounded terminal S Effectively ground the Earth wire Green Yellow Extra coating of machine oil at contact points Hoist with two falls of load chain For the prevention of danger always turn the main power source off at the Terminal box when the electric chain hoist is not in use The power source must be turned off before attempting t...

Страница 19: ...to give the contact points between the links extra coatings of machine oil The load chain must not be deformed and elongated and it must be free of twists and kinks Check especially carefully when the hoist lifts on two or more falls of load chain The hooks must not be elongated and deformation must be within the limits indicated in Table 11 The safety latches must all be in good condition and mov...

Страница 20: ... handle is pushed up Test lifting and lowering without a load Stop holder Bolts and nuts firmly tightened No crack Brake mechanism Brake The brake must function positively When the rated load is lifted the amount of slippage of the brake must be within 1 of the distance the hoist can lift in 1 minute Refer to the Lifting speed on Page 1 to 5 Electrical components Power source cable and pendant con...

Страница 21: ...and chain Motorized trolley Reduction gear section No flaw crack and excessive wear Well lubricated No backlash in the gears and bearings Brake mechanism Stops smoothly without coasting too long Power source cable and pendant control cable No breakage and damage of the rubber covered cables and no disconnection Motor No humming and overheating lnsulation resistance lnsulation resistance exceeds 2M...

Страница 22: ...When the limits of Table 11 are exceeded When dimension A differs from the above recorded value for future reference of the new hook Load chain Measure the sections of the load chain that come into contact with the load sheave with a slide calipers Re place the load chain when the limits of Table 12 are exceeded The whole load chain must be replaced even if one link is extensively worm or deformed...

Страница 23: ...e lead wire from the ter minal black 4 Take out the M6 hexagon socket head cap screws Then remove the brake unit 5 Measure the clearance dimensi on A of the brake unit using the feeler gauge lf the clearance is 0 8 mm or larger adjustment is needed 6 Take out the fixing screws for rotation prevention plate for nut to remove the rotation prevention plate for nut 7 Tightening the nylon hexagon nut c...

Страница 24: ...ad wire through the pipe to the body cover B side Attach the brake unit with M6 hexagon socket head cap screws 12 Tighten the adjusting nut for brake until it reaches the brake wheel Then turn the adjusting nut for brake 360 degrees in the reverse direction 1mm 13 Tighten M5 hexagon socket head cap screws lf the hole of adjusting nut for brake and the tap ped hole of the brake wheel are not in lin...

Страница 25: ...tion Limit switch turns off Twist of the load chains or their tangle causes the limit handle to push up unintentionaly when pulling a load excessively at angle Position the load chains properly Lift the load vertically Replace the limit handle to proper position Faulty contact lntermittent or irregular operati on due to ineffective contact at power source cable terminal or switches Have the faulty...

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