TM 5-2420-231-23-1
0051
Table 1. Transmission Does Not Shift into Forward - Continued.
051
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. Monitor and record front display
Transmission Does Not Shift
Front Display Screen Indicates
screen for output 1 and 3. Each
Output 1 Shorted or Open - Shift to
into Forward - Continued
output will display G for a good cir-
first gear neutral. Press M button until
cuit, S for a short to ground circuit,
front display indicates neutral (nA).
or O for an open/short to voltage
Proceed to Test Step 9.
circuit.
Front Display Screen Indicates
Output 3 Shorted or Open - Shift to
first gear neutral. Press M button until
front display indicates neutral (nA).
Proceed to Test Step 11.
13. Place powershift lever in second
gear forward (TM 5-2420-231-10).
14. Monitor and record front display
Front Display Screen Indicates
screen for output 4, output 8, or
Output 8 or Analog Output 00
analog outputs. Each output will
Shorted or Open - Proceed to step 15.
display G for a good circuit, S for a
Front Display Screen Indicates
short to ground circuit, or O for an
Output 4 Shorted or Open - Shift to
open/short to voltage circuit.
first gear neutral. Press M button until
front display indicates neutral (nA).
Proceed to Test Step 7.
15. Place powershift lever in first gear
forward (TM 5-2420-231-10).
NOTE
More outputs may be displayed than listed below. They are not part of
this Test Step and should be ignored.
16. Monitor and record front display
Front Display Screen Indicates
screen for output 3, 4, 8 and ana-
Output 3, 4, or 8 Shorted or Open -
log input 00. Each output will dis-
Shift to first gear neutral. Press M button
play G for a good circuit, S for a
until front display indicates neutral (nA).
short to ground circuit, or O for an
Proceed to Test Step 15.
open/short to voltage circuit.
Front Display Screen Indicates
Analog Output 00 Shorted or Open -
Shift to first gear neutral. Press M button
until front display indicates neutral (nA).
Proceed to Test Step 5.
Front Display Screen Indicates
Output 3 and Output 4 Shorted or
Open - Shift to first gear neutral. Press
M button until front display indicates
neutral (nA).
Proceed to Test Step 17.
0051-8
