P
P
H
H
O
O
E
E
N
N
I
I
X
X
U
U
N
N
L
L
I
I
M
M
I
I
T
T
E
E
D
D
L
L
L
L
C
C
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
P
P
H
H
X
X
-
-
2
2
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
U
U
S
S
E
E
R
R
S
S
G
G
U
U
I
I
D
D
E
E
P
P
G
G
.
.36
ICE COMING OUT
AUGER TUBE
{front of machine)
Is Nozzle Plugged? Pull Trigger, if no ice comes out check nozzle for
ice plug and foreign objects
Is Airlock being “over fed”?
Too much ice will cause airlock
to back up and ice to spill out
front.
Reduce ICE RATE Pressure to 25 PSI.
Is Airlock turning If no see “AIRLOCK DOES NOT TURN”
Does Airlock have excessive
blow by?
Excessive blow by can cause
reistance to the dry ice pellets
trying to fall into the airlock
Check for noticeable air “puffs” or constant air
coming out of auger tube. This may indicate a
broken rotor vane or worn airlock pads and rotor.
Inspect Airlock and maintain or repair as required.
BLAST PRESSURE
AND/OR ICE RATE
DROPS QUICKLY
WHEN TRIGGER IS
PULLED
There is no Nozzle in the Gun.
Air Supply Line is less than 1”
or there is a restriction between the
unit and the compressor .
Also rubber seals from certain
Supply fittings have been
known to come loose and get
lodged in the Air System Piping
causing a major restriction.
Install Nozzle in Gun
Check the Supply line size and correct if necessary.
Check for restrictions.
Check for use of such fittings and missing gaskets.
If something is lodged in the Air System it will
have to be retrieved to eliminate restriction.
BLAST PRESSURE
AND/OR ICE RATE
DROPS SLOWLY
WHEN TRIGGER IS
PULLED
Indicates an undersized
compressor
If the pressure drop has a significant adverse
effect on cleaning performance, a larger
compressor may be required.
BLAST AIR WILL
NOT REGULATE
PROPERLY/
SYSTEM PURGES
AT HIGH PRESSURE
Check Blast Air Pilot Filter F1.
Check Filter/Regulator Stem.
If plastic stem housing is broken
it cant hold the regulator spring
pressure and uncontrolled air
will pass through Blast Air
Regulator REG2
Replace filter element if required.
Replace Stem. To avoid future damage to the stem,
be very careful when removing the bowl to
completely clear the element before pulling out the
bowl.
NO BLAST AIR AT
ALL
(Panel Gauge
reading ok and all
other functions ok)
Check operation of Air Control
Valve CV6
Replace if necessary
LOW BLAST
PRESSURE
(Panel Gauge reading
ok and all other
functions ok)
Check operation of
Blast Air Pilot Valve CV5
Replace if necessary
VIBRATOR
PROBLEMS
Since the Vibrator Control
System is always flowing a
small amount of air through its
control orifice, it is usually the
first system to be affected by
contamination.
Check Main Filter Element to see if it has
collapsed. A plugged Element can collapse and
contaminate the control system, usually the Vibration
Control System first.
WEAK VIBRATION Check Air Pressures Adjust properly and lock
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