PULSAR
®
PLUS III-S, III-S6, and VI-S SUCTION BLAST CABINETS
Page 16
© 2021 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 30421
4.7.3
Keep doors closed and exhauster running until
the cabinet is clear of all airborne dust.
4.7.4
Unload parts.
4.8
Shutdown
4.8.1
Shut off the air-supply valve, bleed the air-
supply line, and drain the compressed-air filter and dust-
collector pulse reservoir.
4.8.2
Switch OFF the lights and exhauster by pressing
the red pushbutton STOP switch.
5.0
ADJUSTMENTS
5.1
Blasting Pressure (pilot regulator) – Figure 14
5.1.1
The pilot regulator, located on the upper-right
side of the cabinet’s control console, enables the user to
adjust blasting pressure to suit the application while
blasting. The suitable pressure for most purposes is about
80 psi. Lower pressure may be required on delicate
substrates and will reduce media breakdown. Higher
pressure may be required for difficult blasting jobs on
durable substrates, but will increase media break down. If
pressure is too high, suction in the media hose will
decrease and if high enough cause blowback in the hose.
Optimal production can only be achieved when pressure
is carefully monitored.
Plus
Pulsar
Figure 14
5.1.2
To adjust pressure, unlock the regulator knob by
pulling it out, as shown in Figure 14, and turn it
clockwise to increase pressure or counterclockwise to
decrease pressure. Pressure may drop slightly from
closed-line pressure when blasting starts. Once
operating pressure is set, push the knob to lock it and
maintain the setting.
5.2
Air Jet ‒ Figure 15
5.2.1
Thread the air jet 4-1/2 to 5 full turns into the gun
body. Doing so leaves 3-1/2 to 4 threads exposed past
the lock nut. Tighten the lock nut to maintain the setting.
Refer to Section 10.8 for the optional adjusting tool, which
correctly positions the jet. Instructions are provided with
the tool.
Figure 15
5.3
Media-Air Mixture ‒ Figure 16
5.3.1
Check the media stream for correct media-air
mixture; media flow should be smooth and appear as a
light mist coming from the nozzle.
Figure 16
5.3.2
If media does not flow smoothly, loosen the
locking nut and adjust the metering screw until the upper
holes in the metering stem are closed off and the lower
holes are fully open, as shown in Figure 16. This
adjustment is a starting point.
Adjusting Screw
Locking Nut
Lower holes fully open.
Upper holes
fully closed.
Lock Nut
Air Jet Hex
3-1/2 to 4 threads between
lock nut and air jet hex.
When viewed from the knob end, turn knob
clockwise to increase pressure; turn
counterclockwise to decrease pressure.
Side view of
pilot-regulator
adjusting knob.
Adjusting Knob
Pull knob out to unlock
and adjust pressure.
Push knob in to lock pressure.
