Operation
309455C
7
7.
Connect the fixture’s grounding clamp (12) to a true
earth ground (B). See F
IG
. 4.
8.
Connect an air line (E) to the fixture. Set the air
pressure to 26 psi (1.8 bar, 0.18 MPa).
9.
Measure the turbine alternator AC voltage output
with a voltmeter (N), measuring across the fixture
terminals (9) as shown in F
IG
. 4.
NOTE:
To measure frequency and voltage, you
need a multimeter. See
Accessories.
The turbine alternator voltage should read in the
range shown in Table 2 . If the readings vary from
these values, replace the alternator or rebuild it. See
Accessories
to order an Alternator Repair Kit.
10. Remove the probe shroud (16).
11. Disconnect the 3-pin connector (J) and loosen the
locking screw (8). Use the plunger (F) on the back of
the fixture to push out the turbine alternator.
12. Test the alternator coil by measuring the resistance
between the two outer terminals of the 3-pin con-
nector (K) with a multimeter. The resistance should
be 2.5-3.5 ohms.
Measure the resistance between each outer termi-
nal of the 3-pin connector and the exterior of the tur-
bine alternator (L). The resistance should be greater
than 400 ohms.
If the readings vary from these values, replace the
alternator coil.
Fig. 4. Testing the Turbine Alternator
Table 2: Turbine Alternator Voltage
Gun Model
Frequency (Hz)
Voltage (V)
All Pro Xs Models
625 Hz maximum
6.4 V minimum
All Pro Xp Models
575 Hz maximum
6.4 V minimum
TI1880A
TI1886A
Back View of Test Fixture
Ground clamp (12)
wire connection to test
fixture
F
E
9
B
12
N
16
Summary of Contents for 309455C
Page 11: ...Operation 309455C 11 ...
