HP AUTOMATIC XT SPAY GUNS 311051D ユーザーズマニュアル

Fluid flow is fluttering while spraying. Fluid nozzle is not tight enough.

O-ring (36) is missing or damaged.

Fluid filter is clogged.

Tighten fluid nozzle to 60 in-lb (6.8 
N•m).

Replace o-ring.

Check fluid filter.

Fluid flow fades while spraying high 
viscosity fluids.

Fluid pressure is too low, causing 
fluid flow to reduce when gun is ele-
vated.

Raise fluid pressure at source or use 
a smaller fluid nozzle.

Pattern becomes off-set of heavy on 
ends.

Air cap horn holes plugged or dam-
aged.

Clean air cap horn holes with 
non-metallic item such as a toothpick, 
or replace air cap.

Gun fluid pressure is too high with 
gun triggered.

Using needle/nozzle kit with too small 
orifice.

Use needle/nozzle kit with larger ori-
fice.

Fluid system will not operate at low 
enough fluid pressure [below 10 psi 
(70 kPa, 0.7 bar)].

There is no fluid regulator, or air reg-
ulator on pressure pot is not sensitive 
enough at low pressures.

Add low pressure fluid regulator, or 
add more sensitive low pressure air 
regulator on pressure pot.