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MAINTENANACE MANUAL 

FOR 

EOT CRANE 

 
 

               
 

 

 

 

REVA  INDUSTRIES  LIMITED 

 

Regd. Off.  & Unit I : Plot No. 28, Sector 25, Faridabad – 121004 (Haryana) 
                                     Phn : +91-129-4185400     Fax : +91-129-4185414 
                                     E-mail : 

[email protected]

   

                                     Web : 

www.revacranes.com

   

 
                   Unit II : Plot No. 164, Sector 24, Faridabad – 121005 (Haryana)

Содержание EOT series

Страница 1: ...NE REVA INDUSTRIES LIMITED Regd Off Unit I Plot No 28 Sector 25 Faridabad 121004 Haryana Phn 91 129 4185400 Fax 91 129 4185414 E mail reva revacranes com Web www revacranes com Unit II Plot No 164 Sec...

Страница 2: ...RE ROPES 8 3 4 REPLACEMENT OF WIRE ROPE 9 3 5 WIRE ROPE DISASSEMBLY ASSEMBLY 10 4 MAINTENANCE OF PULLEYS SHEAVES 10 5 MAINTENANCE OF REDUCTION GEAR BOX 11 6 MAINTENANCE OF COUPLINGS 11 7 MAINTENANCE S...

Страница 3: ...ORS PERIODICITY OF MAINTENANCE 6 MONTHS 17 11 MAINTENANCE OF BRAKES 19 11 1 DC DISC BRAKES 19 11 2 ELECTRO HYDRAULIC THRUSTOR BRAKE 21 12 MAINTENANCE OF CONTROL PANEL 22 13 POWER FEEDING ARRANGEMENT 2...

Страница 4: ...peeds in both loaded and unloaded conditions III Traversing at specified speeds in both loaded and unloaded conditions Fig 1 A typical Double Grider EOT Crane with Auxilliary Hoisting arrangement has...

Страница 5: ...m 8 LT Gear Box 9 LT End Carriage 10 Control Panel 1 Bridge Girder 2 LT End Carriage 3 CT Wheel 4 LT Gear Box 5 LT Wheel UNDERSLUNG EOT CRANE The items shown here may not necessarily be the part of th...

Страница 6: ...e crane operator except when under training or on maintenance duties Likewise no person shall be on the bridge walkway or on the trolley during normal operation 1 2 Operating Procedure Before operatin...

Страница 7: ...sition before the main switch is closed The warning bell hooters or pulsating lights shall be checked immediately after energizing the crane The check on brake operations is absolutely necessary The w...

Страница 8: ...ll advise the concerned person by hand signal arms extended and if required by shouting 1 4 Hand Signals for Overhead Cranes Hoists There are certain guidelines regarding hand signals to be used so th...

Страница 9: ...gainst atmospheric corrosive conditions c Ensure that the new rope is correct for the pulleys and anchorages All pulleys should be checked to ensure that they are not worn out with the old rope and be...

Страница 10: ...he diameter of the rope has suddenly decreased or the length of lay has suddenly increased or decreased A decrease in lay length is usually associated with waviness in the rope Discard when the core h...

Страница 11: ...tton control or cabin control Assembly 1 Clean the drum with the help of wire brush 2 Apply the coat of grease on drum slots 3 Clean and grease the wire rope guide 4 Unwind the new wire rope on a clea...

Страница 12: ...ha SP 220 or equivalent An inspection cover is provided on the top of the gearbox to visualize the condition of gears gearings An oil level indicator is also provided to see the oil level in the gearb...

Страница 13: ...tion by Maintenance Supervisor If the utilization of the crane is less the following items be checked on quarterly basis otherwise on monthly basis Check the entire unit for any structural damage unus...

Страница 14: ...ng points should be thoroughly attended to and oil topped up in the gear boxes After check and repair test may be carried out with 25 overload with load in the center of span Different motions may be...

Страница 15: ...Thorough check six monthly M 1 9 Thrustor Oil Change Y 1 10 Limit Switch Check functioning M 1 11 Overload Test Check after thorough attention Y 2 0 Traversing 2 1 Gear Box Check and top up oil Y 2 2...

Страница 16: ...cessary Note Considering the safety aspects involved the prevalent practice is to give maximum attention during the monthly schedule The yearly schedule is primarily for carraying out repairs where we...

Страница 17: ...ricants 01 Gear Box Oil filling Change in first quarter after that topping up Castrol Alpha BG 220 02 Motor Greasing Once in quarter through nipple AP3 Grease 03 Wire Ropes Greasing By hand once in fo...

Страница 18: ...e brake backing plate with a lever avoiding any damage to the brake power feed cables and the stator winding 5 Slacken the bolts fixing the motor to the Gear Box housing 6 Remove the motor frame for c...

Страница 19: ...in the bearing there is damage and the bearing must be changed c Vibration In case of excessive vibration check the mounting of motor and the gearbox The straightness of motor shaft be also checked d...

Страница 20: ...rotor is free to rotate In the event of continuous power failure rotor can be freed by pulling the hand release which is deadman type When the release is freed the brake will immediately apply Like o...

Страница 21: ...winding take action to change the complete block for satisfactory performance of the crane 10 1 2 Brake Assembly D C Disc brakes Connect the brake backing plate to the motor frame and fix the head scr...

Страница 22: ...suitably adjusted before dispatch from Reva factory with a gap of 0 3 or 0 4 mm on the drum and no additional adjustment is normally required at the site With wear in use some adjustment may become ne...

Страница 23: ...arly all power control terminals shall have identification labels The power and control terminals should be inspected once in a month or every 3 months Every terminal and connection at switchgears mus...

Страница 24: ...ignment of the collector to the conductors should also be checked The maintenance requirement is to check that there is no physical damage to taut wires or angle irons or the insulators connected to t...

Страница 25: ...switching on 2C1 or 2C2 Voltage 190 V DC Check brake Brake O K Check for Loose Connections Replace Brake No Working Yes Yes Check Voltage at 225 of 226 Voltage 190 V DC Is Yes Replace AUX Contact Che...

Страница 26: ...use ok Replace Fuse Replace O L A Check O L Relay 2OL O L Fault Fuse Blown Replace O L Replace Limit Switch Yes O L Fauh Check Limit Switch No Limit Switch O K No Check Contactor Coil Contactor Coil O...

Страница 27: ...A1 A2 2CB0 1 2 4 2 B 3 4 4 2 B 5 6 4 2 B 14 13 PEN MH K3 CAB 1PB1 M1 M2 A1 A2 2R4 M2 M1 4 8 B 4R4 RELAY IN BUILT IN DRIVE F10 F11 F12 JB3 P1 JB3 P2 JB3 P3 JB1 P4 JB1 P5 JB1 P6 MH P4 MH P5 MH P6 JB3 P...

Страница 28: ...P10 JB3 P11 JB3 P12 1 2 4 4 D 2C41 3 4 5 6 MH P15 MH P14 MH P13 1 2 4 3 D 2C40 3 4 5 6 MH P18 MH P17 MH P16 JB1 P7 JB1 P8 JB1 P9 JB2 P7 JB2 P8 JB2 P9 JB2 P10 JB2 P11 JB2 P12 JB2 P13 JB2 P14 JB2 P15 F...

Страница 29: ...L1 3 0 B 11 12 SPP1 2OL2 3 5 B 11 12 SPP2 11 12 2C1 4 2 C 11 12 2C2 4 3 C JB3 K8 JB1 K74 JB3 K9 JB1 K27 A1 A2 2C3 1 2 3 5 B 3 4 3 5 B 5 6 3 5 B 12 11 4 2 D 12 11 4 7 C 14 13 4 8 B 11 12 2LS1 CH K6 11...

Страница 30: ...uit exclusive of connected apparatus shall not be less than 2 megaohms Check oil level in the gear box Check condition of wire rope Ensure that it is neither kinked nor twisted out of shape Any damage...

Страница 31: ...bridge span and check for alignment of collector system and obstruction with building structure Adjust end limit switches Reset trolley timers if needed Bridge Motion Place master switch in 1st point...

Страница 32: ...MAINTENANACE MANUAL REVA INDUSTRIES LTD Page 26 2 4FA LL 2 8FALL PARRALLELTYPE 2 12FALL PA RA LLELTY PE 2 8FALL...

Страница 33: ...ctioning of creep speed control if necessary 13 6 Overload Test Finally carry out overload test with 125 test load Hoist the test load and hold Brakes should be firm Move trolley across entire span of...

Страница 34: ...necessary 5 0 Brakes 5 1 Brake lining worn inefficient braking Replace brake lining 5 2 Inefficient braking load slip correct spring tension Correct the gap between lining the drum 5 3 Burning of bra...

Страница 35: ...two phases and recheck limit switch operation 10 3 Getting heating up a Short circuit in winding b Overload Relay c Low voltage d Lubrication failure Check phases Check overload relay operation single...

Страница 36: ...06 4 20 0 2 0 5 1661 1949 14 45808 8 25 0 2 0 6 1336 1552 14 45810 16 30 0 2 0 6 1125 1282 14 48 12 32 40 0 3 1 848 4 956 7 14 458 14 60 50 0 3 1 1 682 3 761 7 14 458 16 80 55 0 3 1 4 568 6 634 8 14...

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