TM 5-3805-298-23-2
0156
Table 1. All Service Brakes Do Not Operate.
0156
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WARNING
All Service Brakes Do Not
Operate
DO NOT disconnect or remove any hydraulic system hoses, tubes, or
fittings unless engine is shut down and hydraulic system pressure has
been relieved. Tighten all connections before applying pressure.
Escaping hydraulic fluid under pressure can penetrate skin.
At operating temperature, hydraulic oil is hot. Allow hydraulic oil to cool
before removing any hydraulic fitting.
Wear protective eye covering and gloves.
Lubricating/hydraulic oils used in performance of maintenance can be
very slippery. Immediately wipe up any spills.
Failure to follow these warnings may result in injury or death to
personnel.
NOTE
Cap or plug all hydraulic hose ends and fittings during removal.
Tag and mark hydraulic hoses and fittings and note hose routing to aid
installation.
Use container to catch any fluid that may drain from hydraulic system.
Dispose of fluid IAW local policy and ordinances. Ensure all spills are
cleaned up.
Test Step 1. Check for Active
Diagnostic Codes.
1. Connect MSD, select
Diagnostic Codes Are Not Active-
Transmission 924 and check for
Proceed to step 2.
active diagnostic codes
Diagnostic Codes Are Active Refer
(WP 0008).
to (WP 0005) and repair active
diagnostic codes first.
2. Engage the parking brake
(TM 5-3805-298-10).
3. Turn battery disconnect switch ON
and start engine
(TM 5-3805-298-10).
4. Check if brake system failure alert
Brake System Failure Alert Indicator
indicator lights on the instrument
Is On Proceed to Test Step 2.
panel (TM 5-3805-298-10).
Brake System Failure Alert Indicator
Is Off Proceed to Test Step 5.
