Troubleshooting

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

Fluid needle will not trigger.

Loose or missing fluid needle stop

Replace stop or tighten setscrew.

 

(29) or setscrew (30).

 

 

Air leaking around piston (3).

Replace o-ring (8) or piston.

 

Swollen piston o-ring (8).

Replace o-ring. Do not immerse pis-

 

 

ton in solvent.

 

Insufficient air pressure on trigger.

Increase air pressure or clean air

 

 

line.

 

Plug (19) is in incorrect fluid port.

Move plug to fluid port consistent with

 

 

manifold plumbing, unless you are

 

 

using gun in a circulating system. If

 

 

you are, all fluid ports in gun and on

 

 

manifold should be open.

 

 

 

Fluid does not shut off.

Worn o-ring (11) or (9).

Replace o-ring.

 

Piston cap (4) not fully tightened.

Tighten piston cap until it bottoms

 

 

out.

 

Spring (6) not in place.

Check spring position.

 

Swollen piston o-ring (8).

Replace o-ring. Do not immerse pis-

 

 

ton in solvent

 

 

 

311051D

21