TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
Table 3. Transmission System Troubleshooting.
TEST OR INSPECTION
WARN I N G
Injury or death to personnel can result from sudden machine move-
DO NOT disconnect or remove any hydraulic system line or fitting
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, causing injury to
At opening temperature, hydraulic oil is hot. Allow hydraulic oil to
cool before disconnecting any hydraulic lines. Failure to follow this
warning may result in injury to personnel.
To prevent injury to personnel, wear protective eye covering and
CAU T I ON
Wipe area clean around all connections to be opened during removal. Cap
lines and hoses and plug openings after removing lines. Contamination of
system could result in premature failure.
N OT E
Tag hoses prior to removal to ensure correct installation.
Use a container to catch any fluid that may drain from hoses or sys-
tem. Dispose of fluid IAW local policy and ordinances. Ensure all
spills are cleaned up.
Many of these problems can create diagnostic or event codes in the
ET. These codes can help find the root cause of a problem. ET should
be used to retrieve logged and active codes.
Run engine until normal operating
If problem still exists, there is a problem
Low Stall Speed.
with engine performance. Troubleshoot
temperature is reached (TM 5-3805-290-
engine problems first.
1. Check transmission oil level (TM 5-
1. Add oil as necessary.
High Stall Speed in Both
2. If problem still exists, go to Test 2.
2. Check for air in transmission oil.
1. If air is present, find and repair air entry
2. If problem still exists, go to Test 3.