Control Orifices - Sauer Danfoss 51 Series Manual

GROUP 3025
6.5.11 Control Orifices -- Orifices are installed in the
motor end cap to regulate oil flow to the servo control
valve and the servo piston. These orifices can be re-
moved to check for damage or plugging.
(1) To gain acccess to these orifices, remove
the three (3) plugs located on the motor end
cap nearest the multi---function block, using
a 7/16" or 9/16" hex wrench.
(2) Remove the orifices (T1, T2 and T3 in Figs
55, 56 and 57) with a 3 mm internal hex
wrench.
Figure 55. Servo Pressure Supply Orifice (T1)
Figure 56. Maximum Displacement Servo Orifice (T2)
3025- -9A, Page 26
Figure 57. Minimum Displacement Servo Orifice (T3)
(3) Removable orifices are also installed in the
servo control valve sleeve to control oil flow
from the servo piston to the motor case (Fig.
58).
Figure 58. Servo Drain Orifices (T7 and T8)
HYDRAULIC PUMP