BorMann BAT1300 Manual page 3

EN
Common troubles and troubleshooting of spray gun
Trouble
Excessive paint at airflow nozzle
Paint leakage out of needle valve seal cartridge
Air valve is dull when controlling the trigger
Leakage at air valve root
When the trigger is pulled, air valve does not
work (its root can not plugged into the valve)
Bluntness of the trigger
Paint leakage out of needle valve at the top of
handle
Airflow nozzle locating ring can not work
Sector valve can not be regulated
No dot spraying
Sector control valve or inlet valve is loose
Air leakage of spacer and seal ring
Air control valve on the handle of spray gun can
not work
Trembling spraying or stoppage of the gun
3
Possible cause
Damage of airflow nozzle
Blockage of airflow nozzle caused by piling up of
paint rebounded at the muzzle
Abrasion or looseness of needle valve seal
cartridge
Abrasion of needle valve
Bend of air valve root
Unclean air valve root
Abrasion or loss of seal ring inside air valve
Bend of air valve root
Unclean air valve root
Unclean spindle screws of fixed trigger
Unclean needle valve
Needle valve seal cartridge is too tight
Damage of needle valve spring or air valve spring
Abrasion or loss of seal ring
Unclean thread of locating ring
Distortion or crack of locating ring
Damage or crack of inner seal ring
Paint stained regulating screw
Incorrect installation of nozzle or spacer
Damage of spacer
Abrasion of inner seal ring
Damage of spacer and seal ring
Paint stained spacer and seal ring
Damage or crack of inner seal ring
Paint stained regulating screw
Insufficient paint in the bucket
Unscrewed nozzle
Abrasion of needle valve or seal ring
Loose needle sealing plug
Loose joint of paint tube
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Remedy
Replace airflow nozzle
Clean the airflow nozzle thoroughly
Tighten or replace sealing plug as required
Replace needle valve
Replace broken parts
Take it down and wash it
Replace seal ring
Replace broken air valve root
Take the air valve down and clean it
Clean spindle screws
Clean needle valve
Regulate and lubricate sealing plug
Replace spring
Replace seal ring
Wash the front end of the gun in solvent
Replace the locating ring
Replace seal ring
Take it down and wash it thoroughly
Re-installation
Replace the spacer
Replace seal ring
Replace the spacer
Take it down and wash it
Replace seal ring
Take it down and wash it
Add the paint
Screw the nozzle
Replace the gun or seal ring
Screw sealing plug
Screw joint of paint tube