Nittoh UP-45SV Series Operation And Maintenance Manual Download Page 7

 

UP-45SVG-7

 with MVS-4 4-way 3-position directional control manual valve. 

Advance/Hold/Retract. 

 
1

 

Plug in the pump. 

2

 

Shift manual valve handle to left side position (stop at 45

°

) and depress “ON” switch 

to advance the cylinder (flow to port “A” , port “B” returns flow to the reservoir). 
 
Before  retracting  the  cylinder,  return  valve  handle  to  neutral  (front)  position  (both 
ports “A” and “B” are blocked). 

3

 

Shift  valve  handle  to  right  side  position  and  depress  “ON”  switch  to  retract  the 
cylinder (flow to port “B”, port “A” returns flow to the reservoir). 

 
 

5

 

Maintenance 

5-1 Hydraulic working oil 
 

 

Kind of oil 

 

Use only Nittoh NHO-32 hydraulic oil or an approved, high-grade oil (ISO #32, viscosity : 
32 cSt @40

°

C) with these pumps to promote long pump life. 

 

 

Oil temperature 

 

Aptitude  temperature  for  use  of  hydraulic  oil  is  max.  55

°

C.  In  case  it  happens 

unacceptable  rise  in  oil  temperature,  stop  working  so  as  to  decrease  oil  temperature  or 
take such a measure as installation of an oil cooler. 

 

  Oil exchange    

CAUTION 

 

The frequency of oil change will depend upon general working conditions, severity of use 
and overall cleanliness. 300 hours (working time) of use or about 3 months is considered 
as a standard change interval. Periodically compare samples oh the reservoir oil with new 
oil and inspects oil color for contaminants or differences. 

 

Remove  oil  feeding  plug  and  tilt  the  pump  to  drain  out  old  oil.  Be  careful  that  such 
impurities  as  dusts do  not  enter  info  the  reservoir  and  new  oil  is  filled  up  to  the  gauge 
level mark shown on pump. Precautions when oil changed are; 
 

 

Retract all cylinders fully to the return position. 

 

Do not fill with even a small quantity of replenishment of different kinds of oil. 

 

Be careful that impurities or foreign matter do not enter info new oil. 

 

 

  Others 

      WARNING 

 

When  oil  enters  into  a  eye,  wash  it  away  fully  with  clean  water  and  consult  a  doctor 
immediately.  In  case  oil  enters  into  the  skin  of  such  a  wound,  wash  it  away  with  soapy 
water and consult a doctor without delay. 

 

Summary of Contents for UP-45SV Series

Page 1: ...ELECTRIC HYDRAULIC PUMPS UP 45SV G 0 1 7 Series Operation and maintenance manual NITTOH ZOHKI CO LTD 102 4 10 2 Chome Kamezawa Sumida ku Tokyo 130 Japan Telephone 03 3625 6551 Facsimile 03 3625 6553...

Page 2: ...fety information 2 page 2 Description of components 4 3 Instructions before use 5 4 Operation 5 5 Maintenance 6 6 Circuits 10 7 Construction drawings 11 8 Parts lists 13 9 Trouble shooting guide 15 10...

Page 3: ...al damage only will happen Cautions when installed WARNING Install a pump unit for better balance Since the reservoirs of totally emclosed rubber structure are used in this series pumps the pumps can...

Page 4: ...ngle phase Make sure your line voltage must be the same as the voltage your pump is wired for Wrong voltage connection or voltage drop of your line shall cause burning or heating Be careful about volt...

Page 5: ...5m UP 45SVG 1 Erectric motor Metal plug socket Power supply plug HP relief valve Oil feeding plug Reservoir Oil gauge Delivery port block Pressure gauge Pendant switch 2 5m Power cable 2 5m Manual op...

Page 6: ...ned oil will overflow in the reservoirs causing generation of high pressure in the reservoirs confirm required oil volume in a reservoir as follows Retract the connected cylinder fully Check the oil g...

Page 7: ...oil temperature or take such a measure as installation of an oil cooler Oil exchange CAUTION The frequency of oil change will depend upon general working conditions severity of use and overall cleanli...

Page 8: ...d into hydraulic system causing damage Trim loose ends 5 3 High pressure hoses Hose installation WARNING Install hoses leaving something in reserve because high pressure hoses expand and contract more...

Page 9: ...upward b Remove any load from the cylinder s and cycle the hydraulic system through several cycles fully extend and retract the cylinders or intermittently 2 to 3 minutes 5 6 Carbon brushes Cautions w...

Page 10: ...ing is needed to adjust and set at lower pressure than the standard Contact NITTOH authorized distributor Loosen lock screw on the relief valve and turn the adjusting screw a few turns counter clockwi...

Page 11: ...10 6 Circuits UP 45SVG 0 Hydraulic Circuit Electric Circuit UP 45SVG 1 Hydraulic Circuit Electric Circuit UP 45SVG 7 Hydraulic Circuit Electric Circuit...

Page 12: ...11 7 Construction drawings The pump part is an attached sheet Drawing attachment The valve part mentions it according to a model as follows UP 45SVG 0 UP 45SVG 1...

Page 13: ...12 UP 45SVG 7...

Page 14: ...d plug 1 33 P 8 O ring 1 34 4P53053 Return pipe 1 35 UHP 16 Hole plug 1 36 4P53055 Guide plate 1 37 M5 10 Fitting bolt 1 38 M5 Spring washer HL valve portion 2 1 5 Steel ball 2 2 WY5 10 Spring 2 3 4P5...

Page 15: ...P54057 Push screw 7 11 2 5 13 8 Needle roller 7 12 P 11 O ring 7 13 MS4 10 Positioning pin 7 14 WH5 10 Spring 7 15 5 Steel ball 7 16 4P52065 Handle 7 17 M6 15 Set screw 7 18 PT3 8 Delivery nipple 7 19...

Page 16: ...dy 6 Damage or out of adjustment of relief valve 1 Repair or replace it 2 Fill reservoir to 1 2 of level gauge with all cylinders retracted 3 Bleed the system 4 Pump filter should be cleaned and if ne...

Page 17: ...ranty claim will be accepted for damage or breakdown arising for any of the following reasons Abuse or improper use fair wear and tear faulty or negligent operation improper storage chemical electrica...

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