MA0882RHG
21
4. Hydraulic Oil
○
To keep good operation of the cylinder, it is recommended to use hydraulic oil with a
viscosity of 32cSt at 40
℃
. (ISO VG32 equivalent product)
○
Replace the hydraulic oil about once every six months.
○
The characteristics of hydraulic oil influences the heating, drain amount and acting
speed of the cylinder, therefore, control it according to the instruction manual for the
hydraulic unit.
・
Turn off the power source and supply designated hydraulic oil. Insufficient oil
supply decreases the acting speed, causes thrust force insufficiency resulting
in a drop in the chuck gripping force, which could allow the work to fly out.
Use abrasion resistant and deforming hydraulic oil. Add
a filter of 20μm or
less in the pressure supply line(P) to maintain the function of the cylinder and
to prevent seizing caused by foreign matter.
・
If high speed rotation is continued, the oil temperature will rise, which could rapidly a
high temperature, it will rapidly aggravate deterioration of the sealing materials and
deterioration of the hydraulic oil. Use a cooler to keep the oil temperature at 60°C or
lower.
<Example>
Fig. 6
※
Keep the back pressure extremely low in this case as well.