HY28-2668-01/GC/NA,EU
GOLD CUP
®
Series - Application Manual
Piston Pumps & Motors
3.16
Parker Hannifin Corporation
Hydraulic Pump Division
Marysville, Ohio USA
Section 3
Adjustable displacement stops are standard. On pump controls, stops are adjustable from
maximum to zero displacement. On motor controls, internal locknuts prevent reducing mini-
mum displacement below 30% displacement. Minimum and maximum displacements are fully
adjustable within this range.
The hydraulic stroker is also available with automatic brake and neutral bypass control
A variety of control pressure ranges are available:
PUMP CONTROL PRESSURE
CONTROL
FEATURE
PRESSURE
START
PRESSURE
FULL
00
75 ±15 psi, 5,2 ±1 bar
335 ±25 psi, 23,1 ±1,7 bar
01
75 ±15 psi, 5,2 ±1 bar
435 ±25 psi, 30 ±1,7 bar
02
100 ±15 psi, 6,9 ±1 bar
375 ±25 psi, 25,9 ±1,7 bar
03
150 ±15 psi, 10,3 ±1 bar
400 ±25 psi, 27,6 ±1,7 bar
04
75 ±15 psi, 5,2 ±1 bar
250 ±25 psi, 17,2 ±1,7 bar
MOTOR CONTROL PRESSURE
CONTROL
FEATURE
PRESSURE
START
PRESSURE
FULL
0
75 ±15 psi, 5,2 ±1 bar
250 ±25 psi, 17,2 ±1,7 bar
1
250 ±15 psi, 17,2 ±1 bar
450 ±25 psi, 31 ±1,7 bar
Figure 3.23
Hydraulic stroker (centered)
(8** control)
Figure 3.24
Hydraulic stroker (on stroke)
P2
P1
C o n t r o l S p o o l
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