Graco A Series Instructions-Parts List Manual page 6

Operation
Operation
To reduce risk of serious injury, including fluid injec-
tion, splashing in eyes or on skin, or injury from mov-
ing parts, always follow Pressure Relief Procedure
on page 5 when checking, adjusted, servicing, or
shutting off any part of system.
Check free play of gun before operating
gun
A properly adjusted trigger ensured that flow of fluid is
stopped completely when trigger is released.
1. Hold gun horizontally as shown below. Turn safety
latch off (see dotted lines) and squeeze trigger just
until you feel resistance.
2. Allow trigger to fall forward to engage safety latch
(see solid lines). The distance trigger moves in "free
play" and should be approximately 3/16 in.
3. If free play is not 3/16 in., see Adjusting Trigger
Free Travel, page 8.
1/2 npsm(f)
6
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VENT
Check for proper spring tension
1. See Adjusting Spring Tension, page 7.
To engage gun safety latch
1. Tip gun forward and fully release trigger.
To disengage gun safety latch
1. Push latch in as you squeeze trigger.
Hold handle of wand firmly when triggering gun to
reduce risk of it kicking back from surge of pressure,
which could cause serious injury.
To dispense fluid
1. Start supply pump and squeeze trigger. Fluid flow
begins with slightest pressure and stops when trig-
ger is released.
To adjust flow rate
1. Adjust pump speed to obtain desired flow rate;
always use lowest pressure necessary. Pressure
adjustment will depend on hose length, viscosity of
fluid, and nozzle size.
CAUTION
Periodically inspect vent for build-up of fluid, which
could indicate an internal leak. Service valve needle
and packing as needed.
ADJUST HANDLE
for comfort and tighten by
turning in direction of arrow
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