TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
Table 5. Steering 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 ET.
These codes can help find the root cause of a problem. ET should be
used to retrieve logged and active codes.
1. Check hydraulic oil for correct oil level 1. Add or change oil if necessary (WP
Steering Metering Pump
Makes Noise and Steering
2. If problem still exists, go to Test 2.
grade (WP 0019 00), and
Cylinder Rods Do Not Move
2. Check for a loose connection at oil line 1. Tighten any loose connections or, if
on inlet side of pump (WP 0182 00).
damaged, replace line(s) (WP 0182
2. If problem still exists, go to Test 3.
3. Check for blocked suction screen in
1. Unblock or replace hydraulic tank as
necessary (WP 0140 00).
2. If problem still exists, go to Test 4.