Schaeffler Group Industrial
BA 20
9
Setting the stroke volume
The stroke volume of the hand pump can be adjusted as a function
of the hydraulic nut used.
Spacer ring
The spacer ring (half ring) restricts the stroke and thus reduces
the stroke volume. The volume without a spacer ring (half ring)
is 0,9
cm
3
per stroke, when the spacer ring (half ring) is mounted,
0,2
cm
3
of hydraulic oil is pressed into the hydraulic nut on
a complete stroke.
The spacer ring (half ring) should be mounted when using:
■
HYDNUT50 to HYDNUT150.
Mounting the spacer ring
A small flat blade screwdriver is recommended as a mounting tool,
Figure 4
:
■
Insert the spacer ring (half ring)
(position A,
)
■
Press the arm of the hand pump down almost to the stop
■
Rotate the spacer ring (half ring) by 180° into position B,
.
Dismounting the spacer ring
■
Press the arm down almost to the stop
■
Rotate the spacer ring (half ring) by 180° into position A,
■
Move the arm upwards
■
Remove the spacer ring (half ring).
Do not replace the spacer ring (half ring) during operation of
the pump. Any inaccuracies in the displacement distance can
damage the bearing.
Spacer ring (half ring),
position A
Spacer ring (half ring),
position B
Screwdriver
Figure 4
Spacer ring (half ring)
P
0 0
0 0
1
2
3
00
01
5F9
A
