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 Operating Instruction and Documentation 

                                                                                             

MCS 7500 

Flex (Bluetooth)

 

 

- 21 - 

6.Troubleshooting 

 

If the lift does not work properly, the reason for this might be quite simple. Please check 
the lift for the potential reasons mentioned on the following pages. If the cause of 
trouble cannot be found, please call the technical service. 
 

Problem: The Motors does not start! 

Potential 

causes: 

            Solution: 

-  

no power supply

 

 

 

 

 

 

 

 

 

 

 

 

check the main fuse 

 

 

 

the main switch is not switched on. 

      check 

the 

main 

switch

 

the fuse is defective   

 

 

 

 

 

 

 

 

 

check the fuse /exchange it 

the 

feed 

line 

is 

cut 

           check 

the 

line 

the thermo-fuse is active   

 

 

 

 

 

 

 

 

let it cool down approx.10 min. 

the battery of the controllers is empty   

 

 

 

 

call the customer service 

 

Problem: the motor starts, the lift does not lifting! 

Potential 

causes: 

            Solution:

 

-  

the 

vehicle 

is 

too 

heavy 

         unload 

the 

vehicle 

-  the level of the oil is too low   

 

 

 

 

 

 

 

refill oil 

-  the hydraulic valve is defective   

 

 

 

 

 

 

call the customer service 

 

Problem: The MCS does not lowered! 

Potential 

causes: 

            Solution:

 

-  

the MCS is standing on a obstacle   

 

 

 

 

 

single-mode operate 

-  the hydraulic valve is defective   

 

 

 

 

 

 

call the customer service  

- the 

fuse 

is 

defective           exchange 

the 

fuse 

-  the button „lowering“ is not pressed 

 

 

 

 

 

check the switch   

 

-  the holding valve is defective 

 

 

 

 

 

 

 

call the customer service 

-  the safety star system is always locked   

 

 

 

call the customer service 

 

6.1 Lowering on a obstacle 

 

The lift switched off if the lift is running onto an obstacle and out of the rule-window ± 50 mm. 
 

 

 

6.1.1 Remove the obstacle  

 

•  Press the button “lifting ” in the single-mode. (see the chapter 5.4/5.5) 
 

 

Keep an eye on it, at the singles-mode,  that one MCS  is lifted never too high, 
otherwise the crash of the vehicle can occur. 
 

 

 

 

6.2 Emergency lowering  

 

A emergency lowering is an intervention into the control of the lift and can be done 
only by experienced expert.  
The emergency lowering must be carried in this order. Otherwise a malfunction can 

lead it to damages or lead to danger for body and lives. 

 
Every kind of external leakage has to be removed. This is necessary in particular 
before an emergency lowering. 
The emergency lowering may only be done by persons which are trained in using the 

lift. 

Summary of Contents for MCS 7500

Page 1: ...ating Instruction and Documentation Serial number Nu baum Hebetechnik GmbH Co KG Korker Stra e 24 D 77694 Kehl Bodersweier Tel 49 0 7853 8990 Fax 49 0 7853 8787 E mail info nussbaum lifts de http www...

Page 2: ...wering the vehicle mode synchronous 16 5 5 Single Mode Lifting 16 5 6 Single Mode Lowering 18 5 7 Axle mode 18 5 8 The key operated switch function 20 5 9 Equalisation of the MCS 20 6 Troubleshooting...

Page 3: ...operation have to be considered Obligations of the operator The operator is obliged to allow only those persons complying to the following requirement to work at the unit being well acquainted with t...

Page 4: ...tenance and repair works loose screw connections must always be firmly tightend Guarantee and liability Our General conditions of selling and delivering are in force There will be no guarantee or liab...

Page 5: ...lift was started The persons below were introduced after the installation of the automotive lift The introduction was carried out from an erector of the lift manufacturer or from a franchised dealer c...

Page 6: ...lift They are called experts and competent person in this document Experts are persons for example self employed engineers experts which have received instruction and have experience to check and to t...

Page 7: ...n lift is a lifting device for raising heavy vehicles Truck Bus The maximum capacity of one mobile column lift amount 7500 kg It s not allowed to install the standard automotive lift in a hazardous lo...

Page 8: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 8 2 4 Declaration of conformity...

Page 9: ...of the hydraulic system 2 Holding valve safety device against unintentional lowering 3 Lockable main switch safety device against unauthorised operation 4 CE STOP Safety device against squeeze 5 Hydr...

Page 10: ...efore the lowest position Check the dangerous places of the lift and be sure that there are no objects or people in the immediate area of the lift or on the lift An acoustic signal is heard until the...

Page 11: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 11 3 3 Datasheet...

Page 12: ...ion It s not allowed to start with operations at the lift before the main switch is switched off During lifting or lowering the vehicle it must be observed from the operator It s not allowed to instal...

Page 13: ...N again afterwords switch MASTER ON again see above putting system in operation If connection is established again operating the lift is possible again Now drive vehicle in vehicles area If all column...

Page 14: ...gear Position the MCS 7500 to the wheels and let it down with the hand lever If necessary use the additional supports 1 LIFTING all columns 2 LOWERING all columns 3 LIFTING the column at you are stan...

Page 15: ...a malfunction can lead it to damages Check the dangerous places of the lift and be sure that there are no objects or people in the immediate area of the lift or on the lift Switch on the control syst...

Page 16: ...lift has reached the height of 250mm the lift stops automatically Then push the button 2 again The lift will continue lowering again When a column stops during lowering between the height of 0 and 25...

Page 17: ...owest position with the handlever Check the dangerous places of the lift and be sure that there are no objects or people in the immediate area of the lift or on the lift Switch on the control system a...

Page 18: ...r Control the dangerous places of the mobile lift and be sure that there are no objects or people in the immediate area of the lift or on the lift Press the button lowering until the lift again You he...

Page 19: ...you are standing press button 2 and 4 together The columns towards each other will only move when they get a signal from the opposite column photocell in the leg In case of radion connection interrupt...

Page 20: ...or damages and damages for body and lives The key operated switch at the operating column master column is to be used only with disturbance Put the key in the key operated switch if the red light shin...

Page 21: ...ses Solution the MCS is standing on a obstacle single mode operate the hydraulic valve is defective call the customer service the fuse is defective exchange the fuse the button lowering is not pressed...

Page 22: ...n be stuck through the dirty deposit at the top of the hole Use the solvent and lubricating stuff for an example WD40 to loosen the connection The WD40 is sprayed generously between the screw thread a...

Page 23: ...3 Reset the MCS after an emergency lowering A reset of the system can be enforced if the MCS are in the lowest position An access on the DIP Switch can take place only with a switched off main switch...

Page 24: ...Check the zinc surface and repair it with a suitable tool Use abrasive paper grain 280 White rust can result from moisture laying in certain areas for long periods of time Poor aerating can also resul...

Page 25: ...cleanness of the workshop and location of the lift The degree of the dirt is dependent on the season of the weather conditions and the ventilation of the workshop Under bad circumstances it is necessa...

Page 26: ...ck must be performed by an expert This manual contains form with a schedule for the security checks Please us the adequate form for the security checks The form should remain in this manual after they...

Page 27: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 27 9 3 Position of the columns Master column Cable for charging the Battery...

Page 28: ...mation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F T...

Page 29: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 30: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 31: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 32: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 33: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 34: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 35: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 36: ...ation cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Ti...

Page 37: ...cracking F F F Condition Function photoelectric F F F Condition cable protecting tube plug F F F Condition hydraulic unit F F F Condition surface piston rod F F F Condition of the cover F F F Tightne...

Page 38: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 38 Hydraulic diagram drawing...

Page 39: ...kW 992100 0 5 oil level gauge 980098 0 7 hydraulic block complete 99 540 07 005 DB1 pressure relief valve 155211 DMV pressure relief valve DR08 01 C V 120V 161350 M1 M3 measure connection 118495 VW1 p...

Page 40: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 40 Electrical diagram drawing...

Page 41: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 41...

Page 42: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 42...

Page 43: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 43...

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Page 46: ...Operating Instruction and Documentation MCS 7500 Flex Bluetooth 46...

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