TM 5-2410-241-23-1
0021
Table 2. Chassis Troubleshooting Procedures - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
490-4 Hydraulic Lockout
1. If active 490-4 code is present,
CAT Monitoring System D7R
proceed to step 2.
Normal
ECM and check for Diagnostic
2. If no active codes are present,
problem does NOT exist at this
time. Resume normal operation.
2. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
3. Remove right platform access
panel (WP 0213).
4. Disconnect RH console harness
hydraulic lockout switch connec-
from hydraulic lockout switch
5. Ensure hydraulic lockout switch is
in LOCKED (Figure 3, Item 2)
position.
1. If continuity is found, replace
0296), test for continuity between
hydraulic lockout switch
pin 4 and 5 on hydraulic lockout
(WP 0208). Ensure all harness
connectors are reconnected. Ver-
ify correct operation of machine
(TM 5-2410-241-10).
ceed to step 7.
7. Ensure hydraulic lockout switch is
in LOCKED (Figure 3, Item 2)
position.
0296), test for continuity between
hydraulic lockout switch
pin 5 and 6 on hydraulic lockout
(WP 0208). Ensure all harness
connectors are reconnected. Ver-
ify correct operation of machine
(TM 5-2410-241-10).
2. If continuity is found, proceed to
step 9.
9. Change hydraulic lockout switch
to UNLOCKED (Figure 3, Item 1)
position.