Contracor Power Gun [11/36] Troubleshooting

CONTRACOR

POWER GUN Art. 10112910

8. Troubleshooting

Problem Reason Solution

No Abrasive Flow Foreign material in the mixing

chamber assembly.

Remove nozzle and check for

blockage in the suction head

and nozzle.

Abrasive blockage in the

material hose. If the material

hose packs with abrasive, it is

a sign that the abrasive mixture

is too rich.

Make sure the air-intake holes

in the lance are open.

Worn nozzle. Replace nozzle when the

orice is worn to 9/16", or

sooner if production decreases

noticeably.

Air jet worn. Inspect end of air jet and

replace when wear reaches the

orice.

Air jet and/or nozzle not seated

correctly.

The jet and nozzle must be

fully seated into the mixing

chamber, and the setscrews

must be tight.

Abrasive bridging at the lance’s

abrasive inlet holes. Frequent

bridges or blockage are most

likely caused by damp abrasive.

Empty the material hose and

hopper of abrasive, and store

the abrasive in an airtight

container when not in use.

Hole worn in material hose. Inspect hose for holes and

inspect the clamps for leaks.

Repair as needed.