Startup - Graco REACTOR H-VR Operation

Hydraulic variable ratio, heated, plural component proportioner. for spraying polyurethane foam and polyurea coatings
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Startup

Startup
Do not operate Reactor without all covers and shrouds
in place. Do not attempt to change ratio while machine
is pressurized or running. Do not loosen ratio lock
handle if A and B component pumps are pressurized
or while the pumps are operating.
1.
Select ratio
The stroke lengths of the fluid pumps (AA and AB) can
be adjusted to select the ratio. The frame (AN) has three
pin positions for the bottom of the pump and a slider
mechanism at the top of the pump, which allows for
positioning of the pump at any required position. This
allows for a a range of ratio settings between the first
and last settings on the pump drive link.
a. Shutdown system, see page 30.
b. Relieve pressure, see page 31.
c. Loosen four clamping knobs (AJ) and remove
guard (AH).
AL
AA
F
. 7: Front View
IG
d. Use label on the pump drive link (AE) to identify
the correct position of the pump that needs to
be adjusted. See F
22
AH
AJ
AB
r_256886_313359_6
. 8.
IG
See table 3 for ratios with the one pump set at 1.0 and
available settings for the second pump.
Table 3: Ratio Range
Pump with higher
flow
1.0
1.0
POSN #1
1.0
1.0
1.0
1.0
POSN #1
1.0
1.0
1.0
1.0
1.0
POSN #1
1.0
1.0
Pump A when viewed from rear of machine
Pump B when viewed from rear of machine
F
. 8: Pump Ratio Indicator Labels
IG
Pump with lower
flow
Ratio
1.0
0.95
POSN #1
0.90
1.11:1
0.85
1.2:1
0.80
1.25:1
0.75
1.33:1
0.70
POSN #2
1.42:1
0.66
1.51:1
0.60
1.66:1
0.55
1.88:1
0.50
POSN #3
0.45
2.22:1
0.40
2.5:1
313539F
1:1
1.05
2:1

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