TM 5-3805-248-23-2
STEERING FLOW METER TEE TEST PROCEDURES - CONTINUED
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COMPARISON OF TESTS - CONTINUED
3.
Flow loss (Test 4) is 15 percent or more and flow loss (Test 5) is less than 15 percent.
a.
Check the steering control valve body and spool.
(1)
If the steering control valve spool moves too slowly in one direction, adjust.
(2)
If the steering control valve body is worn, damaged or defective, service or replace.
b.
Check relief valve. If the relief valve opens at a low pressure, or is damaged or defective, service or replace. Refer
4.
Flow loss (Test 5) is 15 percent or more and flow loss (Test 4) is less than 15 percent.
a.
Check the steering control valve body and spool.
(1)
If the steering control valve spool moves too slowly in one direction, adjust. Refer to Steering Control
(2)
If the steering control valve body is worn, damaged or defective, service or replace. Refer to Steering Con-
b.
Check the relief valve.
If the relief valve opens at a low pressure, or is damaged or defective, service or replace. Refer to Steering Control Valve
BLOCKED CYLINDER TEST (ALL CYLINDERS BLOCKED)
WARNING
Before installing blocking plates, install a safety link. Move the steering wheel to the right and then to the
left several times to release any pressure in the steering cylinder lines. Failure to follow this procedure may
cause injury. If you are injured, seek medical attention immediately.
Install blocking plate assemblies at each end of the two steering cylinder lines.
1.
System Oil Temperature.
a.
Turn the steering wheel right and hold.
b.
Open the manual load valve on the flow meter fully.
c.
Step 3. Start engine and run at 1,900 RPM.
NOTE
Before recording test data, make sure the system pressure is at least 100 psi (689 kPa).
d.
Record oil temperature. Refer to Table 2, Steering Blocked Cylinder Test, in this work package. System oil temper-
ature should be between 145-155F (63 -68C).
Steer Right Flow Rate (Leakage).
2.
a.
Turn the steering wheel right and hold.
b.
Open.the manual load valve on the flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust the manual load valve on the flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 2. Correct steer right flow rate is 52 gpm.
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