CAUSE AND CORRECTION
A. Check water trap - - - drain if full,
B. Lack of abrasive - - - recharge unit as described
in maintenance procedure #2.
C. Moisture in abrasive - - - follow maintenance
procedure #3. Dry bag before reinstalling.
A. Low air pressure - - - adjust pressure.
B. Contaminated abrasive - - - recharge unit as de-
scribed in maintenance procedure #2.
C. Moisture in abrasive - - - see C above.
D. Worn abrasive rubber nozzle - - replace as in-
structed in maintenance procedures #2B, C, D
E. Worn steel nozzle jet - - - follow maintenance
procedures #2B and C. Unscrew and replace steel
jet (Item #9) Then reassemble per #2D and F.
A. Abrasive or dirt between valve plunger, packing
and packing nuts - - - disassemble and clean all
parts. Reassemble and reinstall. See illustration of
A. Unit not plugged into 110 volt power line - - -
plug in unit.
B. No power at receptacle - - - check power source.
OR LOW OR
c . Low voltage - - - to increase voltage loosen lock
nut on side of high voltage power supply, then turn
adjusting nut clockwise until a new J-8 spark
plug, gapped at 0.025" will quench out at 140
P.S.I. Tighten lock nut after adjustment,
D. High voltage - - - to decrease voltoge turn adjust-
ing nut counterclockwise
using same procedure
o u t l i n e d in C above.
E. If above adjustments fail high voltage power supply
must be replaced.
A. Allow leakage of air from plug or adapter.
B. Abrasive or dirt in valve - - - disassemble, clean
ports and reassemble. See illustration of chamber