CRYSTAL MARK SWAM-BLASTER LV-1, Руководство по эксплуатации и техническому обслуживанию

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Section IV Page 8
3) With the Power Switch set to ON and the Footswitch or Flow Test switch
depressed, observe the reading on the voltmeter while slowly turning the
Powder Flow Knob clockwise. The range of the voltmeter reading from
completely counter clockwise to fully clockwise should be from low to
high.
4) If the voltmeter reading does not indicate any changes over a wide range
of knob movement and then suddenly jumps to maximum reading, it
indicates faulty wiper arm contact or open winding in the rheostat.
Replace rheostat, it is not field repairable.
I. CHECK VALVES
The unit contains two Check Valves. One is located on the Main Air Pressure
Regulator assembly. This valve prevents the air/powder mixture from flowing
back from the Mixing Chamber into the Abrasive Blast Air Pressure Regulator
and Main Air Solenoid. An In-Line Filter is installed between the Mixing
Chamber and this Check Valve to prevent powder from migrating back into the
Check Valve.
The second Check Valve is located on the Abrasive Pinch Valve Solenoid.
This valves function is to keep the Abrasive Pinch Valve pressurized and
"pinched" or closed when the Power Switch is turned to OFF.
The Check Valves are not field repairable. If they fail, replace.
The In-Line Filter element can be replaced if clogged.
J. VIBRATOR
Each Vibrator Assembly is factory adjusted to produce the desired vibrating
characteristic. If the Vibrator does not function properly, it must be replaced or
returned to the factory for readjustment or repair.
K. ELECTRICAL POWER CORD
If Power Cord is damaged or defective in anyway, replace.
CAUTION!!
Do not attempt to repair a damaged electrical power cord. Replace
only with a cord set supplied by
CRYSTAL MARK
or with an
equivalent cord set approved by
CRYSTAL MARK
.
L. AUXILIARY CHAMBER TOP COVER MAINTENANCE.
The Top Cover has an O-ring, which may require replacement because of
wear or damage. To replace this O-ring, remove the retainer plate and old ring.
Place new O-ring on cover and reinstall plate.
Be sure O-ring is not twisted or pinched by retainer when installed.