PULSAR
®
IX SUCTION BLAST CABINET
Page 31
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 23425, Rev. C, 07/19
8.9
Air only (no abrasive) from nozzle
8.9.1
Low media level in reclaimer. Check media level
and replenish as needed.
8.9.2
Blockage in media hose; refer to Section 8.7.
8.9.3
Poor suction in media hose; refer to Section 8.8.
8.9.4
Make sure the air hose and media hose are not
reversed; the green air hose attaches to the back of the
gun and the clear media hose attaches to the bottom of
the gun’s grip. Refer to Figure 43.
8.10
Blow-back through media hose
8.10.1
Blockage in nozzle. Remove the nozzle and
check for blockage.
8.10.2
Air jet may be too large for nozzle. Refer to the
table in Figure 5.
8.10.3
Blast pressure too high. Adjust blast pressure,
per Section 5.1.
8.11
Blasting does not begin when the foot pedal
is pressed.
8.11.1
Door
interlocks
not
engaging.
Check
adjustment, per Section 5.6.
8.11.2
Blocked or leaking control lines. Check all
urethane tubing for blockage or leaks.
8.11.3
Foot pedal valve malfunction. Check foot pedal
alignment, and inlet and outlet lines for pressure.
8.11.4
Make sure lines are not reversed on the foot
pedal or pilot regulator. Refer to the plumbing and
control schematic in Figure 44.
8.11.5
Pressure regulator may be set to low or OFF.
Adjust blast pressure, per Section 5.1.
8.11.6
Make sure the air compressor is operating and
air-supply valves are open.
8.11.7
Nozzle plugged. See Section 8.4.
8.12
Blasting continues after foot pedal is
released
8.12.1
Make sure the 3-way valve in the foot pedal
exhausts air when the pedal is released. If it does not
exhaust, check the inbound air line for blockage, if no
blockage; replace the valve.
8.13
Media buildup in cabinet hopper
NOTE: Do not pour media directly into the cabinet
hopper, as overfilling may occur.
Overfilling will result
in media carry over to the dust collector and possible
blockage in the conveying hose.
8.13.1
Exhauster motor rotating backwards. The motor
should rotate as indicated by the arrow on the exhauster
housing. If it does not rotate in the proper direction,
lockout
and
tagout
electrical power, and switch the
motor leads, as shown on the motor plate.
8.13.2
Filter cartridges heavily caked with dust.
Decrease pulse OFF time, per Section 5.8 or increase
pulse pressure, per Section 5.7.
9.13.3
Hole worn in flex hose between cabinet hopper
and reclaimer inlet or between the reclaimer outlet and
dust-collector inlet. Inspect hoses and replace them as
needed and route them with as few bends as possible to
prevent early wear.
9.13.4
Obstruction in flex hose. Remove hose and
check for blockage.
9.13.5
Outlet damper closed too far restricting air
movement through the cabinet. Adjust static pressure,
per Section 5.4.
9.13.6
Inlet damper closed too far restricting air
movement into the cabinet. Adjust damper, per Section
2.9 and 5.9.
9.13.7
Reclaimer door open.
8.14
Static shocks
8.14.1
Cabinet and/or operator not grounded. Abrasive
blasting generates static electricity. The cabinet must be
earth-grounded to prevent static buildup. See Section
2.3. If shocks persist, the operator may be building up
static. Attach a small ground wire, such as a wrist strap,
from the operator to the cabinet.
8.14.2
Gloves wearing thin. Inspect gloves and replace
them as needed.
8.14.3
Avoid holding parts and blasting off the grate.
Static will buildup in the part if not dissipated through the
metal cabinet. If blasting parts off the grate cannot be
avoided, attach a ground wire between the cabinet and
the part.
