Graco 220-834, Instructions-Parts List Manual

Page: 8 / 28

8
SHUTDOWN AND CARE
1. Check the packing nut/wet–cup daily . Relieve
pressure. Keep the wet–cup 1/3 full of TSL to help
prevent fluid buildup on the piston rod and premature
wear of packings.
See Fig 8. Tighten the packing nut
just enough to stop leakage. Over tightening the
packing nut may cause binding and excessive pack-
ing wear. Use a round punch or brass rod and light
hammer to adjust the nut.
Fig 7–8
PACKING NUT/
WET CUP
Keep 1/3 full
with TSL
TURN PACKING
NUT CLOCKWISE
TO TIGHTEN
0069
2. Flush the sprayer at the end of each work day and
fill it with mineral spirits. Proper flushing helps prevent
performance problems and costly equipment dam-
age. See
FLUSHING GUIDELINES on page 9.
Never leave water or any paint in the sprayer over–
night to prevent pump corrosion and to prevent the
fluid from freezing or setting up in the pump, pres-
sure control, or hoses. Fluid which is allowed to
freeze or set up in the sprayer or other accessories
can cause loss of pressure, stalling or serious
equipment damage.
Always eliminate water or water–base fluid from the
spray system by using mineral spirits for the final
flush. Then relieve pressure and leave the mineral
spirits in the sprayer.
CAUTION
3. Lubricate the bearing housing after every 100
hours of operation. Remove the drive housing cover.
Fill the bearing housing cavity with SAE non–deter-
gent oil.
See Fig 9.
Fig 7–9
EVERY 100 HOURS OF
OPERATION, FILL BEARING
HOUSING CAVITY WITH SAE
NON–DETERGENT OIL
0070
4. For very short shutoff periods, leave the suction tube
in the paint, follow the
PRESSURE RELIEF PROCE-
DURE on page 2, and clean the spray tip.
5. Coil the hose and lay it on top of the sprayer when
storing it, even for overnight, to help protect the hose
from kinking, abrasion, coupling damage, etc.
See the warning section HOSE SAFETY on page 3
for information on the hazard of using damaged
hoses.
WARNING