Maintenance
WARNING
T
o reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
on page 6.
1. Check
the
packing nut/wet–cup (C) daily
. Relieve
the pressure Keep packing nut/wet–cup1/3 full of
TSL
at all times to help prevent dried fluid from col
-
lecting on the piston rod, and to reduce premature
wear of the packings. The packing nut/wet–cup
should
be tight
enough to stop leakage, but no tight
-
er. Over–tightening the packing nut/wet–cup may
cause binding and excessive packing wear. Use a
metal punch and a light hammer to adjust the nut.
See
Fig. 7.
2. Clean the fluid filter (B) often and whenever the
sprayer is stored. Relieve the pressure. Refer to
manual 307–273, supplied, for the cleaning proce-
dure
of the filter
.
3. Flush
the sprayer at the end of each work day
and
fill
it with mineral spirits to help prevent corrosion and
freezing
of the pump. See
FLUSHING
on page 1
1.
CAUTION
T
o prevent pump corrosion, and to prevent fluid from
freezing in the pump and pressure control, never
leave water or any paint in the sprayer
. If water or
paint freezes in the pressure control, it may prevent
the sprayer from being started, cause loss of pres
-
sure or stalling, and cause serious damage to the
pressure control. Always use mineral spirits for the
final flush and
relieve the pressure
. Leave the
mineral spirits in the sprayer
.
4. For very short shutoff periods, leave the suction
tube in the paint. Relieve the pressure. Clean the
spray
tip.
5. Coil
the hose
and hang it on the hose rack (A) when
storing it, even for overnight. Proper storage of the
hose helps protect it from kinks, abrasion, coupling
damage.
WARNING
Refer
to the warning section
INJECTION HAZARD
on page 4 for information on the hazard of using
damaged hoses.
TIGHTEN
A
B
C
KEY
A Hose Rack
B
Fluid Filter
C Packing Nut/Wet-Cup
Fig.
7
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