Graco Reactor 2 Hydraulic, Операция

Страница: 47 / 70

Fluid Circulation
Fluid Fluid
Fluid Circulation
Circulation
Circulation
Circulation Circulation Circulation Through Through Through Reactor Reactor Reactor
NOTICE NOTICE
NOTICE
To prevent equipment damage, do not circulate
luid containing a blowing agent without consulting
with your material supplier regarding luid
temperature limits.
NOTE: NOTE:
NOTE: Optimum heat transfer is achieved at lower
luid low rates with temperature set points at desired
drum temperature. Low temperature rise deviation
errors may result.
To circulate through gun manifold and preheat hose,
see Circulation Through Gun Manifold, page 48 .
1. Follow Startup, page 44 .
To avoid injection injury and splashing,
do not install shutoffs downstream of
the PRESSURE RELIEF/SPRAY valve
outlets (BA, BB). The valves function as
overpressure relief valves when set to
SPRAY
. Lines must be open so
valves can automatically relieve pressure
when machine is operating.
2. See Typical Installation, with system luid
manifold to drum circulation, page 17 . Route
circulation lines back to respective component
A or B supply drum. Use hoses rated for the
maximum working pressure of this equipment.
See Technical Technical Technical Speciications Speciications Speciications.
3. Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to PRESSURE RELIEF/CIRCULATION .
SA SB
GA
GB
4. Set temperature targets. See Targets, page 39 .
5. Before starting the motor, unlock the hydraulic
compensator knob, then rotate counter-clockwise
until it ceases to move.
6. Press motor to start motor and pumps.
Circulate luid at lowest possible pressure until
temperatures reach targets.
7. Press to turn on the hose heat zone.
8. Turn on the A and B heat zones. Wait until the
luid inlet valve temperature gauges (FTG) reach
the minimum chemical temperature from the
supply drums.
9. Turn off motor.
10. Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to SPRAY .
SB SA
GA GB
334945C 47