TM 5-2410-240-23-1
0021
Table 2. Cab Troubleshooting With Codes. - Continued.
0021
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
0490-03 Hydraulic Lockout Switch
3. Using digital multimeter, test
Continuity Check Does Not
Voltage Above Normal - Continued
implement lockout switch (WP
Agree With Expected Results -
0018, Figure 62) for continuity
Switch is faulty. Replace hydraulic
(WP 0283) between the fol-
lockout switch (WP 0212). Ensure
lowing switch terminals (Fig-
all harness connectors are recon-
ure 2):
nected. Verify proper operation of
a. Switch terminal 1 and
machine (TM 5-2410-240-10).
terminal 2. Refer to
Continuity Check Agrees With
Table 5 for results.
Expected Results - Proceed to
b. Switch terminal 2 and ter-
step 4.
minal 3. Refer to Table 5
for results.
Table 5. Hydraulic Lockout Switch Table.
0021
Switch Acti-
Switch Posi-
Expected Results
vation
tion
Terminal 2 and Terminal 3
Terminal 1 and Terminal 2
Released
Up
No Continuity (open)
Continuity (closed)
Depressed
Down
Continuity (closed)
No Continuity (open)
4. Using digital multimeter, test
No Continuity - Replace lower
for continuity (WP 0283)
cab harness (WP 0228). Ensure all
between harness connector
harness connectors are recon-
C-C2 (WP 0018, Figure 14)
nected. Verify proper operation of
terminal 2 and machine
machine (TM 5-2410-240-10).
ground.
Continuity - Proceed to step 5.
5. Disconnect harness connec-
tor C-C12 (WP 0018, Figure
22) from harness connector
PL-C1 (WP 0018, Figure 214).
6. Using digital multimeter, test
No Continuity - Replace lower
for continuity (WP 0283)
cab harness (WP 0228). Ensure all
between harness connector
harness connectors are recon-
C-C2 (WP 0018, Figure 14)
nected. Verify proper operation of
terminal 1 and harness con-
machine (TM 5-2410-240-10).
nector C-C12 (WP 0018,
Continuity - Proceed to step 7.
Figure 22) terminal 68.
7. Using digital multimeter, test
No Continuity - Replace lower
for continuity (WP 0283)
cab harness (WP 0228). Ensure all
between harness connector
harness connectors are recon-
C-C2 (WP 0018, Figure 14)
nected. Verify proper operation of
terminal 3 and harness con-
machine (TM 5-2410-240-10).
nector C-C12 (WP 0018,
Continuity - Proceed to step 5.
Figure 22) terminal 21.
