c. Test.
(1) Connect an ohmmeter to the two outer
a. Removal.
terminals of the rheostat and set the meter on
RX1 scale. The reading should be 6.2 ohms. If
3-13).
reading is more or less than 6.2 ohms, replace the
(2) Refer to figures 6-3 and 6-4 and remove
rheostat.
the phase shift rheostat.
(2) Connect an ohmmeter to the center termi-
nal and either outside terminal of the rheostat. Set
b. Cleaning and Inspection.
the meter on RX1 scale. Turn the rheostat. in ei-
(1) Clean the phase shift rheostat with a
ther direction until it stops, then turn it in the
clean, dry cloth.
opposite direction slowly and evenly until it stops
(2) Inspect for breaks, cracks, corrosion, or
again, The indicator on the meter should increase
other damage.
or decrease evenly according to the speed at which
the rheostat is turned. If meter indicator does not
(3) Replace a defective phase shift rheostat
function as described, replace the rheostat.
as necessary.
c. Test.
above tests is in proper working condition.
(1) Connect an ohmmeter to the two outer
d. Installation
terminals of the rheostat and set the meter on
(1) Refer to figures 6-3 and 6-4 and install
RX10 scale. The reading should be 400 ohms. If
the output control rheostat.
reading is more or less than 400 ohms, replace
(2) Install the left side shroud (para 3-13).
rheostat.
