Flushing; Pump Removal - Graco Reactor E-20 Series Manual

Flushing

Flush equipment only in a well-ventilated area. Do not
spray flammable fluids. Do not turn on heaters while
flushing with flammable solvents.
• Flush out old fluid with new fluid, or flush out old
fluid with a compatible solvent before introducing
new fluid.
• Use the lowest possible pressure when flushing.
• All fluid components are compatible with common
solvents. Use only moisture-free solvents.
• To flush feed hoses, pumps, and heaters separately
from heated hoses, set PRESSURE
RELIEF/SPRAY valves (SA, SB) to PRESSURE
RELIEF/CIRCULATION
lines (N).
SA
N
• To flush entire system, circulate through gun fluid
manifold (with manifold removed from gun).
• To prevent moisture from reacting with isocyanate,
always leave the system dry or filled with a mois-
ture-free plasticizer or oil. Do not use water.

Pump Removal

Pump rod and connecting rod move during operation.
Moving parts can cause serious injury such as pinch-
ing or amputation. Keep hands and fingers away from
connecting rod during operation.
312066ZAD
. Flush through bleed
SB
N
TI10954a
See manual 309577 for pump repair instructions.
A
B
1. Shut off ,
2. Flush pump.
3. If pumps are not parked, press
until pumps stop.
4. Turn main power off
supply.
5. Shut off both feed pumps. Close both fluid inlet ball
valves (B).
6. Turn both PRESSURE RELIEF/SPRAY valves (SA,
SB) to PRESSURE RELIEF. Route fluid to waste
containers or supply tanks. Ensure gauges drop to 0.
Repair
, and heat zones.
. Trigger gun
. Disconnect power
ti4147a
27