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6
“
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
①
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.
②
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.
③
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.
④
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
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