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The customer is responsible  for ensuring  all 
electrical connections are made according to 
national and international regulations for the 
installation of electrical equipment.  

The  device  must  be  supplied  from  an 
isolated  source  and  protected  by  an  over 
current  device  to  ensure  the  limited  voltage 
circuit  requirements  according  to  national 
and international standards. 

No  warranty  will  be  considered  if  this  is  not 
completed accordingly.  

2.3.4 

Start  the  electric  motor  and  let  the  unit  run 
10 cycles (pressurising/de-pressurising):  

With  system  pressurised  bleed  the
brakes.

With  system  de-pressurised  refill  oil
if necessary.

2.3.5

 

Bleeding  and  flushing  the  hydraulic 
power unit 

To meet the demands of NAS 1638 Class 8 
or  ISO  4406  Class  19/17/14  the  hydraulic 
power  units  supplied  from  Twiflex  Ltd  have 
been flushed before leaving the factory. 

Despite  the  above,  the  hydraulic  system 
must  always  be  flushed  and  bled  again 
before commissioning. 

Flushing  of  the  system  will  remove  minor 
particles and potential dirt in the system and 
prevent damage to the unit. 

After flushing, the hydraulic power unit must 
be  bled  in  order  to  remove  any  air  in  the 
system.  

If  the  hydraulic  power  unit  is  not  properly 
bled  potential  damage  to  the  seals  may 
occur. 

The  hydraulic  power  unit  must  always  be 
bled  in  conjunction  with  assembly,  repair  or 
when making changes in the system.  

Failure  to  bleed  the  hydraulic  system  will 
allow  air  to  remain  in  the  brake  lines  which 
could  prevent  the  brake  system  from 
reacting  fast  enough.    This  might,  for 
example,  cause  the  linings  to  remain  in 
contact  with  the  brake  disc  and  excess 
heating  of  the  brake  pads  and  brake  disc 
could occur. 

Air  in  the  system  could  also  destroy  the 
seals  (diesel  effect)  within  the  hydraulic 
system. 

Make  a  functional  check  of  the  system  by 
checking  the  pressure,  and  the  hydraulic 
settings. 

Transmisiones FU Ibérica, S.L.

 

C/ África 17 · Polígono Industrial Can Mora · 08459 - Sant Antoni de Vilamajor · Barcelona · SPAIN

+34 93 268 18 33

fuiberica

@

fuiberica.com 

www.fuiberica.com  

Содержание M1662

Страница 1: ...nual LCS HYDRAULIC POWER UNIT Part Number T7600561 M1662 Transmisiones FU Ib rica S L C frica 17 Pol gono Industrial Can Mora 08459 Sant Antoni de Vilamajor Barcelona SPAIN 34 93 268 18 33 fuiberica f...

Страница 2: ...9 4 4 Function test 11 4 5 Dismantling the power unit 11 4 6 Changing the oil 11 4 7 Changing the oil and cleaning the reservoir 12 4 8 Changing the oil filter 13 4 9 Changing the air breather 13 4 1...

Страница 3: ...lic power unit before correctly filling the oil reservoir Do not adjust valves or pressure switches to higher operating pressures than specified in the manual Do not change the size or type of compone...

Страница 4: ...goodwill lost profits or revenue loss of use of this product or any associated equipment cost of substitutive equipment downtime costs or claims of any party such damages resulting from any misspellin...

Страница 5: ...t they cannot be damaged by passing or falling objects For indoor storage for up to 3 months the hydraulic power units do not need any surface treatment For longer periods they should be covered with...

Страница 6: ...hydraulic diagram 2 3 1 Fill the tank with oil of the recommended quality see Appendix E The oil fill volume is approximately 3 litres Remove the air breather 5b and add filtered oil 2 3 2 Fill the o...

Страница 7: ...hed and bled again before commissioning Flushing of the system will remove minor particles and potential dirt in the system and prevent damage to the unit After flushing the hydraulic power unit must...

Страница 8: ...ystem an electric motor 4 and a pump 2 convert electrical power into oil pressure and oil flow Pressure is limited by The pressure switch 40 that turns off the motor when the preset pressure is reache...

Страница 9: ...age 8 3 3 Hydraulic diagram Transmisiones FU Ib rica S L C frica 17 Pol gono Industrial Can Mora 08459 Sant Antoni de Vilamajor Barcelona SPAIN 34 93 268 18 33 fuiberica fuiberica com www fuiberica co...

Страница 10: ...ing or charging in order to make the braking system work properly The correct setting and adjustment procedures can be found in Appendix C All components in the pump unit are pre set to the stated pre...

Страница 11: ...tion sample 6 months 1000 h Oil change 2 years 4000 h Oil filter cleaning change if necessary After one week 6 months 1000 h Air filter change 6 months 1000 h Gas pressure Daily 6 months 1000 h Other...

Страница 12: ...ed hydraulic workshop 4 6 Changing the oil WARNING Disconnect all power to the unit and relieve all internal oil pressure in the system 4 6 1 Remove the drain plug The location of the drain is on the...

Страница 13: ...servoir 4 7 2 Make sure all the oil drains into a secondary container for proper disposal 4 7 3 Replace the drain plug and tighten the plug 12 15 Nm 4 7 4 Unscrew the 4 screws with a metric T socket w...

Страница 14: ...housing and cavity Insert a new oil filter taking care to preserve the correct the orientation 4 8 4 Clean the o ring and Teflon ring outside the filter housing Renew o ring and Teflon ring if necessa...

Страница 15: ...ed cap on top of the accumulator 4 10 2 Using a 6mm Allen key undo the plug by turning it anti clockwise turn The screw is now loose without losing gas 4 10 3 Mount the gas pressure gauge and close th...

Страница 16: ...nd wait several minutes for the new gas to equalize to the accumulator temperature Measure the gas pressure If the pressure is too low apply more gas 4 11 3 If the gas pressure is too high open the si...

Страница 17: ...or other component you must ensure that the pressure behind the valve is released If only one dump valve is present you can release the pressure through a test hose Minimess hose 5 3 Power Unit does...

Страница 18: ...wer supply 5 4 Other failures Instrumentation failure Check signals from Level thermal temperature switch if fitted Pressure switches or transmitters in the pump line Pressure switches or transmitters...

Страница 19: ...18 Appendix A Dimension drawing Transmisiones FU Ib rica S L C frica 17 Pol gono Industrial Can Mora 08459 Sant Antoni de Vilamajor Barcelona SPAIN 34 93 268 18 33 fuiberica fuiberica com www fuiberic...

Страница 20: ...9 Appendix B Spare part drawing Transmisiones FU Ib rica S L C frica 17 Pol gono Industrial Can Mora 08459 Sant Antoni de Vilamajor Barcelona SPAIN 34 93 268 18 33 fuiberica fuiberica com www fuiberic...

Страница 21: ...actuated at desired switch pressure 3 If necessary readjust by turning the adjustment screw 4 Repeat step 1 3 until micro switch operates at desired switch pressure 2 Relief valve or Counter pressure...

Страница 22: ...1 Appendix D Electrical diagram Transmisiones FU Ib rica S L C frica 17 Pol gono Industrial Can Mora 08459 Sant Antoni de Vilamajor Barcelona SPAIN 34 93 268 18 33 fuiberica fuiberica com www fuiberic...

Страница 23: ...filter To maintain a reliable system it is recommend that only hydraulic oil of the following classes of purity is used NAS 1638 Class 8 or ISO 4406 Class 19 17 14 It is recommended that the filter i...

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