POOL PAL BLAST MACHINE
Page 9
© 2008 CLEMCO INDUSTRIES CORP.
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www.clemcoindustries.com
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Manual No. 24813
3.9.4
Shutdown the compressor.
3.9.5
Cover the machine when not in use.
4.0 PREVENTIVE
MAINTENANCE
4.1 Daily
4.1.1
With the air off, before blasting, inspect the
following:
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Make sure that couplings are secure and lock pins
and safety cables are in place.
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Make sure the nozzle washer is in place and not worn.
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Inspect the control handle, the lever must move
freely with no drag or binding, and must return to the
"up" position when released.
WARNING
Malfunctioning control handles could cause
unintentional actuation of a blast machine, or
prevent a machine from deactivating upon
release. Malfunctioning control handles must
be taken out of service immediately and
repaired or replaced. Serious injury can result
from unintentional blasting.
4.1.2
During blasting, inspect the following:
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Inspect all couplings and coupling gaskets for leaks.
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Check the blast machine for leaks. If leaks are found
around the pop-up valve, inspection door, or pipe
fittings at the bottom of the cone, stop blasting
immediately and repair or replace worn parts. If
leaks are allowed to continue, abrasive erosion
could cause irreparable damage to the blast
machine.
•
Check all external piping, control hoses, and valves
for leaks. If leaks are found, stop blasting and repair.
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Inspect blast hose, couplings, and nozzle holders for
leaks. At the first sign of a leak, stop blasting and
inspect all items for wear.
WARNING
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.
4.2 Weekly
4.2.1
With the air off, before blasting, do the following:
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Remove the nozzle for inspection. Replace if the
orifice diameter is worn 1/16
″
or more, or if the liner
is cracked.
•
Inspect the blast hose for wear; look for soft spots.
Soft spots mean the hose is worn. Replace the blast
hose before the tube wears as far as the fabric plies.
WARNING
Worn blast hose could suddenly fail by
bursting. Couplings and nozzle holders may not
adequately grip worn hose, causing them to
blow off under pressure. Compressed air and
abrasive escaping from a burst hose, or
disconnected coupling or nozzle holder, could
cause severe injury.
4.2.3 Monthly
inspection
With the air off, before blasting, inspect the following:
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Check the pop-up valve’s urethane coating for
cracks and grooves. Replace the pop-up valve at
the first sign of wear. See Section 5.3.
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Inspect the rubber pop-up seal, and replace at the
first sign of wear, drying, or cracking. See Section
5.4.
