Graco 231–406, Series A Instructions-Parts List Manual page 10

1
Use this category for flushing a brand new sprayer
and flushing after storage.
System has Next fluid to be
this fluid in it: this fluid in it: sprayed: sprayed:
1
Oil-based Oil-based fluid –
solvent or fluid new color
Oil-based Water-based fluid
solvent or fluid
Water or water- Water-based fluid
based fluid – new color
Water or water- Oil-based fluid
based fluid
The following sections are for preparing a sprayer for storage.
Oil-based Prepare for
solvent or fluid storage
Water or water- Prepare for
based fluid storage
CAUTION
Never allow water to freeze in the pressure control.
Doing so prevents the sprayer from being started
and causes serious damage to the pressure control.
Push the water out with mineral spirits.
1. Relieve pressure.
2. Remove filter bowl (A) and screen (B). Install bowl
(A) and filter support (C) without screen (B). See
Fig 6.
3. Close pressure drain valve (D).
Flushing
Flushing order:
Flush 1 Flush 2
Mineral spirits none
Mineral spirits Warm soapy
water
Warm soapy Clean water
water
Warm soapy Clean water
water
Mineral spirits none
Warm soapy Clean water
water
4. Pour 2 quarts of compatible solvent into grounded
5. Remove spray tip from gun.
6. Turn pressure adjusting knob (E) counterclockwise
firmly to the side of a grounded metal pail when
flushing.
Before you spray:
Flush 3
none Prime with oil-based fluid
Clean water Prime with water-based
fluid
none Prime with water
Mineral spirits Prime with oil
none Relieve pressure,
Leave drain valve open
Mineral spirits Relieve pressure,
Leave drain valve open
metal pail. Put pump in pail.
to lowest pressure setting.
WARNING
FIRE AND EXPLOSION HAZARD
To reduce static sparking and splashing,
always remove the spray tip from the
gun, and hold a metal part of the gun