40392 Assembly Instructions
Page 11
MAINTENANCE
WARNING!
Failure to observe the following before performing any maintenance could cause serious
injury or death from the sudden release of compressed air:
Disconnect power supply.
Lockout and tagout the compressed air supply.
Bleed the air supply line to the blast gun.
Immediate replacement of worn components is required. Failure to replace worn
components could expose the operator or bystanders to high speed media and compressed
air could cause death or serious injury.
Leaks around couplings and nozzle holders indicate worn or loose fitting parts. Nozzle
holders and couplings that do not fit tightly on hose and nozzles that do not fit tightly in
nozzle holders could disconnect while under pressure. Impact from nozzles, couplings,
hoses, or abrasive, and parts disconnected while under pressure could cause severe injury.
TROUBLESHOOTING TIPS
PROBLEM/CAUSE
POSSIBLE SOLUTION
Surging of blast flow:
Air pressure too low
Check pressure gauge on compressor
Excessive media consumption:
Air pressure too low
Check pressure gauge on compressor
Clogging and plugging of blast flow:
Debris in media
Purge and screen
Media size too large
Use smaller grit size
Nozzle plugs
Use larger nozzle and correct
Wet media
Dry media, drain water from air
Moisture in abrasive media:
Wet media
Change or use dry media
Water in air
Drain water from air lines
Humid weather:
Moderate humidity
Keep media as dry as possible
Moderate humidity
Use drier or moisture separator
High humidity
Avoid that period of use if possible
