Graco Inc. 241705 - Manual (Page 9)

308491 9
Installation/Operation
How to Check the Gun Diffuser Operation
The Standard Needle and Seat Kit, 237398, has the
number 090 stamped on the needle and seat. The seat
does have a diffuser.
The optional Non-diffused Needle and Seat Kit,
237260, has the number 125 stamped on the needle
and seat. The seat does not have a diffuser.
The diffuser, located in the valve seat, creates an
irregular spray pattern when the gun is sprayed
without a tip guard, such as during cleaning. This
reduces the risk of an injection injury.
If you are using the optional Kit 237260, you must
take extra precautions to keep your hands and
body away from the nozzle of the gun.
Always have the tip guard in place during regular
spraying operations.
WARNING
Check the diffuser operation weekly. The gun diffuser/
seat (2a) breaks up spray and reduces the risk of fluid
injection when the tip is not installed. Perform the test
below. If it fails, replace the entire Needle and Seat Kit.
Diffuser/seats and needles are not sold separately;
using old parts with new ones will result in leakage.
WARNING
SKIN INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 5.
1. Relieve pressure.
2. Remove the tip guard and spray tip.
3. Start the sprayer and adjust it to the lowest
pressure.
4. Aim the gun into a grounded metal pail while hold-
ing it firmly to the pail. Trigger the gun. If the fluid
emitted is not diffused into an irregular stream,
replace the entire needle kit immediately. See Fig.
5.
Fig. 5
1 Irregular spray pattern
1
2a
04735