JGO8~20 Internal gear pump 

Frequently Asked Questions (FAQ) :
1, What's the standard hydraulic oil and its working temperature ? 
Under 70 bar pressure, use hydraulic oil viscosity 30-50CST(ISO VG-46) in temperature 40℃. Working temperature 15-16℃ .
2, How to adjust the pressure through the pressure adjustment screw ?
clockwise rotation, increase pressure; counter-clockwise rotation, decrease pressure.
3,How to adjust the displacement through the displacement adjustment screw ?
clockwise rotation, decrease the displacement  ; counter-clockwise rotation, increase displacement.
4, What's the possible reason if there is no oil output from delivery port ?
 1),the shaft rotating direction is wrong.
 2), sauction oil pipe was jamed.
 3), vane was locked in the rotor,can't slip out from rotor.
5), what's your contact information:
Guangdong Juntai Hydraulic Technology Co.,Ltd.
Add.:No.2,Jiannan 2nd Road,Xiaoxiang Industrial Zone,Wanjiang District,Dongguan city,Guangdong Province,China 523048
Tel.:+86-769-22773551(ext.8036)  
Fax: +86-769-22773561
Mobile :+86-13662813492
Wechat#:13662813492