Graco XM 24W626 Operation Manual page 56

Empty and Flush Entire System
been pumped and there is air at the metering
pump inlet. Press
then back out the air pressure regulator.
7. Add solvent to the A material tank:
a. On the A side feed module, close both feed sys-
tem air control ball valves and back out the air
pressure regulator. Open the brass valve on the
top of the tank to fully relieve tank air pressure.
F . 41
IG
b. Remove the platen from the A side feed pump
by loosening the two setscrews and the air tube.
c. Place a pail of solvent under the feed pump
then slowly insert feed pump into the pail. The
feed pump should rest on the bottom of the pail.
d. Slide the air motor slider valve (DF) to ON.
Adjust the air regulator (DE) so the feed pump
runs very slowly.
DF
DD
DA
F . 42: Feed Pump Air Controls
IG
56
to stop metering pump
FEED PUMP
BYPASS
ti20127a
DE
DC
DB
ti20104a
e. Continue adding solvent to tank until enough
solvent is in the tank to expel the remaining
material from the hose bundle material line.
8. Salvage the A material from the hose bundle mate-
rial line then flush the hose bundle material line:
a. Press . Slowly turn metering pump air
regulator (CD) clockwise to increase air pres-
sure until metering pump A starts. Continue until
the material appears to be thinner, which is a
sign that the solvent is mixing with the material,
then press
Back out the air pressure regulator.
b. Cover the material container and store for later
use.
c. Move the A material line to a waste container.
d. Press . Slowly turn metering pump air
regulator (CD) clockwise to increase air pres-
sure until metering pump A starts. Continue until
clean solvent is dispensed, then press
stop the metering pump. Back out the air pres-
sure regulator.
e. Reconnect hose bundle material line to the mix
manifold.
f. Disengage trigger lock then trigger gun into the
waste container and press
metering pump air regulator (CD) clockwise to
increase air pressure until metering pump A
starts. Continue until clean solvent is dis-
pensed, then press
pump. Back out the air pressure regulator.
to stop the metering pump.
. Slowly turn
to stop the metering
3A2776H
to