Product Manual

40000 & 40002 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:
 Depressurize the blast machine.
 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.
To ensure a long and efficient operational life of the Deadman Control System, it is highly
recommended that the following procedures be followed:
1. Periodically (after 5-6 months of moderate use or after 10-15 hours of heavy industrial use)
replace all hose adaptors that are for abrasive flow use only (Order No. 40192).
2. Replace rubber sealing block on 40166 after 7-10 hours of use to maintain proper shut-off
(Order No. 40164).
3. Check abrasive hose when it begins to soften or leaks media or air around the hose or handle
area.
4. Replace the nozzle when it wears to the next larger size (at this time the Venturi effect of the
nozzle is inefficient).
5. Check the urethane gasket in the pull-up closure when the air leaks excessively from the
opening (make sure the gasket is free from media).