Parker Series V14 - V14 Displacement limiter; Displacement spacer changing procedure

17
Parker Hannin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V14
Bulletin HY30-5510-M1/UK
V14 Displacement limiter
Max and min displacement limiter consists of a socket head cap screw and a displacement
spacer or spacers, see g. 1. Suitable screw lengths for a particular max or min displacement
range are shown in the table 1 below.
Displacement spacer (s) [mm] Socket head cap screw Parker No.
0 - 24 M12 x 45 3785700
25 - 39 M12 x 60 3707695
40 - 60 M12 x 80 3782519
Table 1
What length the max or min displacement spacer should have to obtain a chosen displa-
cement is shown on page 5 and 6. The displacement spacers are available in ve different
lengths: 1; 1,5; 2; 5 and 10 mm. To obtain the right displacement, the spacers can be combi-
ned with each other’s. The thinnest spacer has to be mounted closest to the setting piston,
and the others in increasing length order.
Formula for determining the setting angle (a) at a selected displacement D
a
:
sin a = (D
a
/D
35
) * sin 35°
where: D
35
is max displacement at 35°
Displacement spacer changing procedure:
1. Disassemble the max or min end cover by loosen
the four screws for the chosen cover.
2. Loosen the socket head cap screw from setting piston.
Note! This must be done when the control module is
assembled on the motor, otherwise the
feedback arm could be damaged.
3. Choose spacer (s) to obtain right displacement, see page 5 and 6, and place them
on the socket head cap screw.
4. Tighten the socket head cap screw in the setting piston. The tightening torque have
to be 105 ± 20 Nm.
5. Assembly the end cover. The tightening torque have to be 60 ± 10 Nm for the four
screws.
g. 1.
min displacement side
max displacement side