Operation
3A3005C
7
Operation
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
1.
Turn off hydraulic power supply (V).
2.
Close supply line shut-off valve (L).
3.
Open pump drain valve (D).
4.
Verify pressure has been relieved by checking pres-
sure gauge (Y).
5.
Close shut-off valve (AA).
NOTE:
Leave the drain valve (D) open until you are
ready to dispense again.
Before Starting Pump
•
Check hydraulic fluid level in hydraulic power supply
before each use. Add fluid as necessary to fill the
lines.
•
Flush pump before using it for the first time to
remove the light oil that was left in after factory test-
ing to protect pump from corrosion. Be sure solvent
used is compatible with the fluid to be pumped and
the pump’s wetted parts. See
Technical Data
, page
26. Flush until clean solvent comes out of hose.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief
Procedure when you stop dispensing and before
cleaning, checking, or servicing the equipment.
COMPONENT RUPTURE HAZARD
Overpressurizing any component can result in seri-
ous injury or property damage as a result of rupture,
fire, and/or explosion.The maximum working pres-
sure of each component in the system may not be
the same. To reduce the risk of overpressurizing any
component in the system:
•
Be sure you know the maximum working pressure
of each component.
•
Never exceed the maximum working pressure of
the lowest rated component in the system.
•
Do not exceed the maximum input pressure.
•
Use tubing, hoses and other components with
pressure ratings equal to or higher than the pump
rating.
•
Do not exceed the maximum output pressure. The
pump has a rated ratio of 10:1. However, it is
capable of reaching stall pressures equal to 11.1
times the hydraulic input pressure. To calculate
the fluid output pressure, multiply the hydraulic
pressure shown on the hydraulic control module
gauge by 11.1.
For example
:
900 psi hydraulic x 11.1 = 10,000 psi fluid output
6.2 MPa hydraulic x 11.1 = 69 MPa fluid
output
62.05 bar hydraulic x 11.1 = 689 bar fluid output
•
Do not exceed the maximum pump cycle rate.
•
Regulate hydraulic pressure to the pump so that
no fluid line component or accessory is overpres-
surized.
