Variable displacement pump
Series VP1-095 / -110
/
-130
Bulletin MSG30-8214-INST/UK
Installation information
6
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
VP1_095_control_ports_ny2.ai
Leif A./15-05-05
LS
LS
T
T
T
LS control adjustments
(VP1-095/-110/-130)
System pressure limiter
- The system (high) pressure relief valve is
factory set at 350 bar.
- Although it can be set higher, the system
pressure relief valve must
not
, under any
circumstance, be set higher than 400 bar
when the hydraulic system is being deliv-
ered to the final customer.
- Make sure ‘max peak pressure 420 bar’,
as measured in gauge port M on pump
(see fig. 3), is not exceeded.
Standby pressure
- The standby pressure,
∆
p, is factory set at
25 bar but is adjustable between 15 and
40 bar.
- The 25 bar setting and the standard
orifices usually provide an acceptable
directional valve characteristic as well as
system stability.
- For additional information, please contact
Parker Hannifin.
Adjustments
(refer to fig. 7 below)
1. System (high) pressure adjustment
screw; factory set at 350 bar (1 turn
approx. 140 bar)
1)
2. Counter nut for adjustment screw 1
3. Bushing; basic valve setting, factory set;
DO NOT TOUCH!
Note: Before you read the measured
value, always activate and run a func-
tion after you have made the adjust-
ment of settings.
Adjust standby pressure first and then
the system pressure.
4. Standby pressure adjustment bushing;
factory set at 25 bar (1 turn approx.
17 bar)
1)
5. Counter nut for bushing 4.
1)
Before attempting to change a setting,
the corresponding counter nut must be
opened; it should be re-tightened after
the adjustment.
Fig. 7. VP1-095 / -110 / -130 control
adjustments.
VP1_095_control_adjustments.ai
Leif A./15-05-05
1 2 3 4 5
LS
Fig. 8. VP1-095 / -110 / -130 control ports.
Port
LS
(BSP
1
/
4
”)
NOTE:
Always run a function,
after adjusting the standby pres-
sure or the max pressure setting,
before you read the value.
Alternative LS port
Item Wrench / dimension
1
Hex Head Wrench / 4 mm
2
Wrench / 13 mm
3
DO NOT TOUCH
4
Wrench / 27 mm
5
Wrench / 27 mm
