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Page 33

OPERATION

CONTROLS

JDN Air Hoists can be equipped with a variety of control devices.

They are all suitable for use in explosion-hazardous areas.

All control switches return to the zero position when released.

CONTROL VALVE ON MOTOR

Air control (E, F, FI controls) with main-stream control valve

with integrated main-stream valve

The control valve consists of:

1. Main-stream valve

2. Direction control valve as slider with sleeve

The main-stream valve lies upstream of the direction control valve.

If no control pressure is present, this valve is closed and the

direction control valve is depressurised. If control pressure is
applied from the hand control, the valve opens and releases the

main stream.

If the red EMERGENCY STOP button on the hand control
is pressed, all control lines are depressurised and the main-stream

valve is closed.

Rope control
Control valve with upstream main-stream valve. The main-stream

valve is opened via upstream valves when the rope control is

actuated.

The control valve consists of:

1. Main-stream valve

2. Direction control valve as slider with sleeve

3. Positioner

The direction control valve positioner (slider with sleeve)

is mechanically connected to the control lever directly via the

control shaft.

No separate EMERGENCY STOP button is therefore required.

E-CONTROL

With E-control, lifting and lowering movements can be controlled

via two pushbuttons.

The direction of movement of the load hook is marked on the upper

side of the valve housing, above the pushbuttons.

Lifting: Press the right pushbutton.

Lowering: Press the left pushbutton.

E-control with EMERGENCY STOP button

Содержание PROFI 25TI

Страница 1: ...JDN OPERATION AND ASSEMBLY INSTRUCTIONS FOR AIR HOISTS Original operation and assembly instructions...

Страница 2: ...peration instructions edition 02 2011 cover the following JDN Air Hoists Serial No Serial No Serial No The operation instructions must be read carefully in their entirety before operating any hoist Fo...

Страница 3: ...initial operation 29 Initial operation 29 OPERATION Rules for safe operation 30 Controls 33 Emergency stop 35 Overload protection 35 Load hook mount 35 Chain 36 Load hook 37 Attaching the load 37 Lift...

Страница 4: ...ons 58 Checking axial play 60 Checking and adjusting overload protection 61 FAULTS CAUSES AND REMEDIES Troubleshooting guide 62 ACCESSORIES Filter silencer 63 Booster unit 63 Chain box 64 APPENDIX Tec...

Страница 5: ...nt Prevention Regulations for Cranes in the respective currently applicable version Operators must also initiate the prescribed tests see also Principles for the Testing of Cranes BGG 905 ZH 1 27 To d...

Страница 6: ...annually Providing an inspection log and updating regularly Checking personnel regularly for safety and hazard awareness during work PERSONNEL SAFETY Personnel who operate maintain inspect and perform...

Страница 7: ...at the JDN Air Hoist operating site All persons charged with operating maintaining or repairing JDN Air Hoists must read and follow these operation instructions WARNINGS AND SYMBOLS Safety warnings i...

Страница 8: ...tant rating data If you have any questions concerning operation of JDN Air Hoists which are not addressed in these operation instructions please contact us at the following address J D NEUHAUS GMBH CO...

Страница 9: ...precise positioning of the load The motors of the PROFI 25 50 TI JDN Air Hoists feature rotors with patented grease chambers These contain JDN high performance grease which enables operation with oil...

Страница 10: ...ation Notes D and E JDN HOISTS FOR USE IN THE PRESENCE OF TEMPERATURE CLASS T6 GASES OR EXTREMELY EXPLOSIVE DUSTS Following separate tests especially with regard to ambient temperatures and type of op...

Страница 11: ...d provide the necessary degree of safety for normal operation as well as operation under difficult conditions in particular rough treatment and changing environmental influences For hazardous conditio...

Страница 12: ...spondingly earthed parts earth leakage resistance less than 106 This also applies to operation with trolleys or cranes Their tracks must be earthed on site Running wheels and rail surfaces must never...

Страница 13: ...opane Toluene o Xylene ethyl alcohol ethylene glycol i Amyl acetate n Butane n Butyl alcohol 1 Butylene 1 2 Dichlorethane Di i propyl ether Natural gas Acetic anhydride n Propyl acetate n Propyl alcoh...

Страница 14: ...P Hoists with increased spark protection Copper plated load hook and bottom block with brass safety catch FSR Running gear with increased spark protection Running wheels for trolleys and cranes are br...

Страница 15: ...the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres 2 DIN EN 1127 1 Explosive atmospheres Explosion prevention and protection Part 1 Ba...

Страница 16: ...s In combination with trolleys JDN Air Hoists are also suitable for the floorless horizontal movement of loads Any other use or use outside these stipulations is deemed to be impermissible Oblique pul...

Страница 17: ...must be operated at a system pressure of 4 bar or 6 bar see information on the nameplate If the system pressure is too low important functions of the hoist will be impaired The brake will drag and is...

Страница 18: ...h chamber 6 is formed by two vanes Due to the incoming compressed air a greater force is created at the leading larger vane surface 4 1 than at the trailing smaller vane surface 4 2 The difference in...

Страница 19: ...installed without an oiler If required the service unit is also available with an oiler Synthetic lubricants must not be used when operating with a service unit If the JDN Air Hoist is to be converted...

Страница 20: ...ual pressure depends on the cross section and length of the hose For this reason when calculating the performance of the air hoist we have allowed for a 10 drop in nominal pressure when lifting the ma...

Страница 21: ...ot form and the chain cannot become twisted Secure the chain STORAGE CONDITIONS BREAKS IN OPERATION In the case of longer operational breaks coat the chain and hook with a light film of oil Motor cons...

Страница 22: ...CTION PAGE 46 INSTALLING THE HOIST DANGER JDN Air Hoists must only be installed by qualified personnel Faulty installation can lead to serious accidents DANGER The attachment points for JDN Air Hoists...

Страница 23: ...The actuating elements pushbuttons levers return to the zero position automatically after being released The EMERGENCY STOP function is activated by pressing the EMERGENCY STOP button Once the button...

Страница 24: ...s at the ends of the control lever using shackles and eyebolts Cut the knotted link chain to the required length Fasten one handle to the free end of either knotted link chain The green handle is inte...

Страница 25: ...fter another REMOVING THE HOSE PIECES Press down the locking ring 1 with a suitable tool for example a screwdriver pulling out the hose piece 2 at the same time Detaching connections MAKING CONNECTION...

Страница 26: ...utton valve hand control Guide the strain relief rope through the eye on the pushbutton valve and secure it using the cable clamp Push the one ear clamps onto the hose ends Attach the hoses to the hos...

Страница 27: ...for contamination and clean if necessary Blow through the compressed air hose in order to remove foreign bodies Attach the compressed air hose to the connection on the hoist Secure using a hose clamp...

Страница 28: ...y approx 30 mm2 s cSt at 40 C anti icing additive if required Chain lubrication Chain oil or motor vehicle engine oil kinematic viscosity approx 150 mm2 s cSt at 40 C or special lubricant from J D NEU...

Страница 29: ...ready adjusted Filling the optional oiler see Lubricants page 28 and Service unit page 48 It is especially important for the operator to lubricate the chain before initial operation of the hoist see L...

Страница 30: ...re only be used in those applications in which the load carrying capacity does not change with the position of the load Oblique pulling of loads in general Definition of oblique pulling Oblique pullin...

Страница 31: ...fore attaching the load accurately position it vertically below the hoist The chain must hang vertically before lifting Ensure that the hook safety catch is closed Repair damaged hook safety catches B...

Страница 32: ...of fracture Hydrogen induced embrittlement with resultant stress cracks due to highly corrosive media e g sea water may affect high strength steels e g chains Risk of fracture This process is encoura...

Страница 33: ...stream If the red EMERGENCY STOP button on the hand control is pressed all control lines are depressurised and the main stream valve is closed Rope control Control valve with upstream main stream valv...

Страница 34: ...control lifting and lowering movements can be controlled via two pushbuttons The direction of movement of the load hook is marked by arrows next to the pushbuttons Lifting Press the upper pushbutton L...

Страница 35: ...e main stream valve is closed simultaneously No additional EMERGENCY STOP device is required Lifting Carefully pull on the chain with the green handle The load is lifted slowly Pull harder on the chai...

Страница 36: ...ompounds and rhodanide Furthermore hazards arise due to rusty chains when using chain boxes as the chain can drop out of the chain box if it forms a heap In addition rusty chains are subject to extrem...

Страница 37: ...is 40 C to 150 C ATTACHING THE LOAD DANGER Only use attaching cables or attaching chains which are suitable for the load Attaching must not be attempted by winding with the lifting chain around the l...

Страница 38: ...ection page 35 and Checking and adjusting overload protection page 61 LOWERING THE LOAD DANGER Ensure that there are no persons below the load Then lower the load and set it down carefully DANGER For...

Страница 39: ...l hoses Detach the strain relief and hose carrier and remove the control device Carefully detach dismount the hoist and remove In the case of trolleys proceed in reverse order as described in the sect...

Страница 40: ...he same For devices used mainly in vertical operation from 75 of on time the theoretical operating time is reduced due to the higher lowering speed in the range from 50 to 100 of the nominal load Ther...

Страница 41: ...ions of the actual mode of operation from that used for calculation extend or shorten the safe operating period For all inspection work which is not a part of the daily inspection suitable access must...

Страница 42: ...ation of Materials Handling and Storage Equipment The formula given for the cubic average k does not take the weight of the harness into account This is permissible if the ratio 05 0 capacity bearing...

Страница 43: ...deployment Column 2 x Column 3 x Operating days x factor1 2 Remaining theoretical use in load spectrum 4 When zero has been reached a general overhaul must be performed Date Delivery Initial operation...

Страница 44: ...rection of movement Daily Checking direction of movement page 47 Check lifting and lowering limiters buffers visually Daily Replace buffer immediately if damaged otherwise replace every 5 years Check...

Страница 45: ...vanes every 5 years In off shore areas and other similar corrosive environments replace the chain regularly Every 5 years Check gearbox and perform lubricant change Every 5 years Check the rotor pini...

Страница 46: ...istance water insolubility and good adhesion properties Re lubrication intervals must be stipulated in accordance with the loading Please contact us if required CHECKING BRAKING FUNCTION Check the fun...

Страница 47: ...utton All movement of the hoist must stop Actuating the control elements must not cause a lifting or lowering movement Turn the EMERGENCY STOP button to reset it DANGER If a control element is stiff o...

Страница 48: ...be set to a pressure of 6 bar in the absence of an air stream This setting is only correct for a pressure of at least 7 bar upstream of the service unit Depressurise the air line downstream of the se...

Страница 49: ...Fill the container with oil up to the maximum mark and refit the oil filler screw Check the oil drop rate at the sight glass with the motor running Turn the oil throttle screw using a screwdriver unti...

Страница 50: ...ng is described under a separate item Remove the nameplate 1 Remove the motor cover bolts 2 and detach the motor cover 3 when the cover bolts are removed tension in the brake springs 4 is fully releas...

Страница 51: ...to the front rotor bearing with the clutch side first Coat the vanes lightly with high performance grease and insert into the rotor slots with the starting aids Coat the braking surface and the outer...

Страница 52: ...embly is completed Pull out the chain from the bottom block The buffers buffer discs and spacer are thereby pulled from the chain Assembly Push the buffer discs in the correct alignment edge encloses...

Страница 53: ...scs and spacers are thereby pulled from the chain Assembly Push the buffer assembly in the correct alignment buffer plus buffer discs edge encloses buffer onto the chains Align the chain and fasten it...

Страница 54: ...ly Push the buffer assembly in the correct alignment buffer plus buffer discs edge encloses buffer onto the chains Align the chain and fasten it to the assembly chain in the bottom block by means of t...

Страница 55: ...in box the spacer must also be removed from the chain Assembly In the case of operation with chain box Push the buffer discs with edge in the correct alignment edge encloses buffer together with the b...

Страница 56: ...after aligning the welds and the first chain link by means of an open chain link The welds on the upright chain links must face outwards when running over the chain sprockets For this reason the weld...

Страница 57: ...ain side The first chain link must run upright over the drive sprocket with the weld facing outwards The welds of the chain links which lie flat in the drive sprocket must face towards the gearbox in...

Страница 58: ...ISO 7592 CHECK DIMENSIONS HOIST CHAIN Note When checking the replacement limit future wear up until the next inspection date must be taken into account If the chain dimension values are outside the l...

Страница 59: ...WEAR DIMENSIONS FOR CHAIN SPROCKETS Check dimensions for chain sprockets Chain size d x t mm x mm z a mm x mm 4 60 0 0 45 23 5 x 66 5 59 6 0 45 a x Limit dimensions after max permitted wear z Number o...

Страница 60: ...is a danger of loads falling PREVENTING RISKS Dangers are avoided by regular maintenance lubrication in suitable intervals When the axial play of the installed hook and bottom block increases rapidly...

Страница 61: ...t After the test screw the screw plug back in and ensure that it fits tightly ADJUSTING OVERLOAD PROTECTION The adjustment method described here is based on the attachment of test loads The adjustment...

Страница 62: ...r pressure Dirt in the service unit filter blocked Clean service unit ensure better air quality Silencer is clogged Replace or clean silencer elements improve air quality if necessary Motor vanes worn...

Страница 63: ...before the fluid level reaches the filter element Turn the drain valve 4 by 90 and allow the fluid to drain out Close the drain valve again by turning back The filter must be replaced after approx 250...

Страница 64: ...KG ATTENTION Never allow the chain to pile up in the chain box The chain must only enter the container via the chain drive If it falls out of the container e g during transportation it must be run out...

Страница 65: ...ing speed at nominal load m min 2 8 2 0 1 6 Air consumption at nominal load lifting m min 6 5 Air consumption at nominal load lowering m min 2 9 Air connection G 1 Hose size inside outside mm 35 51 We...

Страница 66: ...TI 37 TI 50 TI A minimum headroom 2 mm 1260 1470 1485 B mm 827 935 950 C mm 450 540 540 D mm 900 1080 1080 E1 mm 75 100 100 E2 mm 75 100 100 F to centre of hook without chain box mm 270 285 250 G mm...

Страница 67: ...powered by air Page 67 APPENDIX CIRCUIT DIAGRAM Rope control...

Страница 68: ...powered by air Page 68 APPENDIX Dual control...

Страница 69: ...powered by air Page 69 APPENDIX Dual control with pin valve Lower side OPTIONAL...

Страница 70: ...powered by air Page 70 APPENDIX Quadruple control...

Страница 71: ...powered by air Page 71 APPENDIX Quadruple control with pin valve Lower side OPTIONAL...

Страница 72: ...NEUHAUS GmbH Co KG D 58449 Witten Heven PHONE 49 0 2302 208 0 FAX 49 0 2302 208 286 website www jdn de e mail info jdn de is a registered trade mark of our company BA 822 EN Issue February 2011 Subjec...

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