Empty And Flush Entire System (New Sprayer Or End Of Job) - Graco XM Series Repair Parts

Flush
Empty and Flush Entire System
(new sprayer or end of job)
NOTE:
• If system includes heaters and heated hose, turn
them off and allow to cool before flushing. Do not
turn on heaters until fluid lines are clear of
solvent.
• Use the lowest possible pressure when flushing to
avoid splashing.
• Before color change or shutdown for storage, flush
at a higher flow rate and for a longer time.
To flush only mix manifold, see Flush Mix Manifold
•
procedure page 15.
Guidelines
Flush new systems if coating materials will be
contaminated by 10W oil.
Flush system when any of the following situations occur.
Flushing will help prevent materials from clogging the
line between hoppers and pump inlets.
• Anytime sprayer will not be used for more than one
week
• If materials used will settle
• If using thixotropic resins that require agitation
16
Procedure
1. Follow Pressure Relief Procedure, page 13, and
Flush Mixed Material, page 15, as required.
Engage trigger lock. Turn main pump air regulator
(CD) fully counter-clockwise to shut off.
NOTE: When flushing coating materials, remove pump
fluid filters, if installed, and soak in solvent to decrease
cleaning time. Proceed with Step 2. If flushing a new
system, leave filters in place.
2. Move circulation return lines to separate fluid
containers to pump remaining fluid out of system.
3. Increase main pump air regulator (CD) pressure to
30 psi (21 kPa, 2.1 bar).
4. Select . Press
When running pumps independently set to
. Press and
NOTE: If sprayer does not start with static pressure,
increase air pressure by 10 psi (69 kPa, 0.7 bar)
increments. To avoid splashing do not exceed 40 psi (28
kPa, 2.8 bar).
CD
air regulator
.
or
as needed to clean.
313289V