TM 5-2420-231-23-1
0058
Table 1. Transmission Does Not Disengage When Clutch Cutout Switch
Is Activated - Continued.
058
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Disconnect powershift wiring har-
Transmission Does Not
ness connector (WP 0007, Figure
Disengage When Clutch
115) from manual control handle
Cutout Switch Is Activated -
(WP 0007, Figure 116).
Continued
4. Using a digital multimeter, test for
Continuity - Replace manual control
continuity between manual control
handle (WP 0277).
handle wiring harness connector
Proceed to Test Step 5.
(WP 0007, Figure 116) terminals A
No Continuity - Proceed to step 5.
and D. There should be no conti-
nuity.
5. Have an assistant press and hold
clutch cutout switch on front end
manual control lever (TM 5-2420-
231-10).
6. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between manual
Proceed to Test Step 3.
control handle wiring harness con-
Resistance Greater Than 5.0 Ohms -
nector (WP 0007, Figure 116) ter-
Replace manual control handle (WP
minals A and D. Resistance should
0277).
be 5.0 ohms or less.
Proceed to Test Step 5.
Test Step 3. Test Clutch Cutout
Switch Signal Circuit.
1. Remove instrument panel front
cover (WP 0174).
2. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between power-
Proceed to step 3.
shift wiring harness connector (WP
Resistance Greater Than 5.0 Ohms -
0007, Figure 115) terminal A and
Replace powershift wiring harness (WP
powershift connector wiring har-
0167).
ness connector (WP 0007, Figure
Proceed to Test Step 5.
20) terminal J3. Resistance should
be 5.0 ohms or less.
3. Using a digital multimeter, test for
Continuity - Replace powershift wiring
continuity between powershift con-
harness (WP 0167).
nector wiring harness connector
Proceed to Test Step 5.
(WP 0007, Figure 20) terminal J3
No Continuity - Proceed to Test Step 4.
and terminal J2. There should be
no continuity.
Test Step 4. Test Clutch Cutout
Switch Voltage Supply Circuit.
1. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
0058-4