Graco 241508, Инструкция-перечень запасных частей

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Troubleshooting
WARNING
INJECTION HAZARD
To reduce the risk of a fluid injection
injury, follow the
Pressure Relief Proce-
dure on page 10 before checking or
servicing any of the system equipment and when-
ever you are instructed to relieve pressure.
NOTE:
Check all possible remedies in the troubleshooting
charts before disassembling the gun.
Some improper patterns are caused by the
improper balance between air and fluid.
General Troubleshooting
Problem Cause Solution
Fluid leakage from back of fluid
packing area Worn packings or needle shaft Replace entire needle assembly (12).
Air leakage from front of gun Air valve not seating properly Clean or replace air valve (23).
Fluid leakage from front of gun
Needle ball worn or damaged Replace entire needle assembly (12).
g g
Worn seat assembly If carbide, replace the seat assembly
(13) and gasket (12b). The gasket
must be replaced whenever the seat
assembly is removed.
If plastic, replace the plastic seat
(13a) in the seat assembly (13). The
gasket (12b) must be replaced when-
ever the seat assembly is removed.
Fluid in air passages
Spray tip seal leaking Tighten retaining ring (18) or replace
spray tip (33).
Leaking around seat housing Replace the gasket (12b). The gasket
must be replaced whenever the seat
assembly is removed.
Fluid inlet fitting leaking Replace the fluid tube gasket (7). The
gasket must be replaced whenever
the fluid tube connector is removed.
Slow fluid shut-off Fluid buildup on fluid needle compo-
nents. Remove and clean or replace the
fluid needle assembly (12).
No fluid output when triggered Tip orifice plugged.
Fluid filter or fluid hose plugged.
Very slowly loosen air cap retaining
ring (18), air cap (14), and spray tip
(33). Clean the tip orifice, or the tip
filter on small orifice tips. To replace
the tip filter (if used), order Part No.
241804 Kit.
After tip removal (see above), very
slowly loosen the hose end coupling
at the gun and relieve pressure grad-
ually. Then loosen completely to clear
the obstruction.