Electrical Tests; Test Gun Resistance - Graco Pro Xp 60 AA WB Instructions - Parts Manual

Electrical Tests

Electrical Tests Tests
Electrical Electrical Tests
Electrical components inside the gun affect
performance and safety. Use the following
procedures to test the condition of the power supply
and gun body, and electrical continuity between
components.
NOTICE
NOTICE NOTICE
The gun body resistor cartridge is part of the body
and is not replaceable. To avoid destroying the gun
body, do not attempt to remove the body resistor.
Use megohmmeter Part No. 241079 (AA) with an
applied voltage of 500 V. Connect the leads as
shown.
Megohmmeter Part No. 241079 (AA-see Fig.
17) is not approved for use in a hazardous area.
To reduce the risk of sparking, do not use the
megohmmeter to check electrical grounding
unless:
• The gun has been removed from the hazardous
area;
• Or all spraying devices in the hazardous area
are turned off, ventilation fans in the hazardous
area are operating, and there are no flammable
vapors in the area (such as open solvent
containers or fumes from spraying).
Failure to follow this warning could cause fire,
explosion, and electric shock and result in serious
injury and property damage.
36
Test Gun Gun Resistance Resistance
Test Test Gun Resistance
1. Flush and dry the fluid passage.
2. Measure resistance between the electrode
needle tip (25a) and the air swivel (21).
The resistance should be 104–150
megohms. If outside this range, go to
Test Power Supply Resistance, page
range, see Electrical Troubleshooting, page 43
other possible causes of poor performance, or
contact your Graco distributor.
Figure 18 Test Gun Resistance
37. If in
for
3A2497H