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Electrical Tests
18 309291P
Test Power Supply Resistance
1. Remove the power supply (18), page 29.
2. Remove the turbine alternator (19) from the power
supply, page 30.
3. Measure resistance from the power supply's ground
strips (EE) to the spring (18b). See F
IG. 5..
4. The resistance should be 75-85 megohms. If out-
side this range, replace the power supply. If in
range, proceed to the next test.
5. If you still have problems, refer to Electrical Trou-
bleshooting on page 22 for other possible causes
of poor performance, or contact your Graco distribu-
tor.
6. Be sure the spring (18b) is in place before reinstall-
ing the power supply.
Fig. 5. Test Power Supply Resistance
ti1500a
EE
18b