
3
To reduce overspray and obtain maximum efficiency,
always spray with the lowest possible fluid/air pressure
that produces an acceptable spray pattern.
Excessive atomizing air pressure can increase overspray,
reduce transfer efficiency and with some materials, result
in poor finish quality from dry spray.
Generally use up to 20 psi air at gun inlet. Unusually
heavy, difficult to atomize materials may require up to
30 psi at gun inlet. See Specifications on page 1.
gENERAl SPRAy INSTRuCTIONS
The first requirement for a good resultant finish is the
proper handling of the gun. The gun should be held
perpendicular to the surface being covered and moved
parallel with it. The stroke should be started before the
trigger is pulled and the trigger should be released before
the stroke is ended. This gives accurate control of the
gun and material.
The distance between gun and surface should be 6 to
8 inches depending on material and atomizing pressure.
The material deposited should always be even and wet.
Lap each stroke over the preceding stroke to obtain a
uniform finish.
SPRAy TECHNIquE
Coating should be even
and wet when spraying
Coating will
be light at
this point
Coating will
be heavy
at this point
Start
stroke
Pull
trigger
Release
trigger
End of
stroke
RIgHT
WRONg
TRAVEL oF GUN
6 to 8 inches
AIR CAP
PACKINg
NuT
FluId NEEdlE
FAN CONTROl
FluId NEEdlE CONTROl
AIR
AdjuSTINg
vAlvE
PACKINg AdjuSTMENT INSTRuCTIONS
Before using this spray gun, the packing nut should be
adjusted as follows:
1. Tighten packing nut until fluid needle starts to bind
in the packing.
2. Loosen packing nut just enough so the fluid needle
moves freely.
The packing nut is intentionally left loose so the PTFE
packing does not take a “set” before the spray gun is used.
This allows full utilization of the packing.
PREvENTIvE MAINTENANCE
A
C
B
d
SPRAy guN luBRICATION
Apply a drop of SSL-10 spray gun lube at trigger bearing
stud and the stem of the air valve. The shank of the fluid
needle where it enters the packing nut should also be
oiled. The fluid needle packing should be kept soft and
pliable by periodic lubrication. Make sure the baffle and
retaining ring threads are clean and free of foreign matter.
Before assembling retaining ring to baffle, clean the
threads thoroughly, then add two drops of SSL-10 spray
gun lube to threads. The fluid needle spring and air valve
spring should be coated with a very light grease, making
sure that any excess grease will not clog the air passages.
For best results, lubricate the points indicated, daily.
A. Trigger Points
B. Packing
C. Adjusting valves
d. Baffle/Air Cap Threads
Summary of Contents for sv50
Page 6: ...6 NOTES...
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