TM 5-3805-248-23-2
HYDRAULIC SYSTEM FLOW METER TEE TEST AND MAINTENANCE - CONTINUED
0321 00
BLOCKED COMPONENTS TEST - CONTINUED
Apron Lower Flow Rate (Cylinder Blocked).
8.
a.
Block apron cylinder with blocking plate.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM. Move apron control lever into LOWER position.
d.
Slowly adjust manual load valve on slow meter for a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate.
9.
System Oil Temperature (Finish).
a.
Open manual load valve on flow meter fully.
b.
Start engine and run at 1,900 RPM. Move ejector control lever into FORWARD position.
c.
Record oil temperature. Refer to Table 4. System oil temperature should be between 145 and 155F (63 and
68C).
COMPARISON OF BLOCKED COMPONENTS TESTS
a.
Leakage is in the right or left bowl cylinder.
(1)
Check piston seals in bowl cylinder.
If piston seals are damaged; replace. Refer to WP 0383 00.
(2)
Disassemble bowl cylinder.
If bowl cylinder is damaged or defective; service or replace. Refer to WP 0383 00.
b.
Leakage in bowl lift valves.
Check bowl lift valve.
If bowl lift valve is damaged or defective; service or replace. Refer to WP 0324 00.
c.
Leakage in apron cylinder. Check apron cylinder.
If apron cylinder is damaged or defective; service or replace. Refer to WP 0385 00.
d.
Leakage in sequence relief valve for the apron.
Check sequence valve for damage or wear.
If sequence valve is damaged or defective; service or replace. Refer to WP 0382 00.
e.
Leakage in ejector cylinder.
(1)
Check ejector cylinder.
(2)
If ejector cylinder is damaged or defective; service or replace Refer to WP 0384 00.
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