TM 5-3805-248-23-2
HYDRAULIC SYSTEM FLOW METER TEE TEST AND MAINTENANCE
THIS WORK PACKAGE COVERS
Preparation for System Test, System Tests, Comparison of System Tests, Hydraulic Implement Pump Tests, Comparison
of Pump Tests, Hydraulic Implement Pump Test-Aeration and Cavitation for Test 17 through 23, Comparison of Aeration and
Cavitation Tests, Blocked Circuit Tests, Comparison of Blocked Circuit Tests, Blocked Component Tests, Comparison of
Blocked Component Tests, Hydraulic System Tee Test
INITIAL SETUP
References - Continued
Maintenance Level
Direct Support
Tools and Special Tools
WP 0233 00
Tool kit, general mechanic's (Item 113, WP 0338
Tool outfit, hydraulic system test and repair
(HSTRU) (Item 114, WP 0338 00)
Shop equipment, common no. 1 (Item 101, WP
References
Personnel Required
WP 0019 00
Two
WP 0020 00
Equipment Condition
Tractor parked on level ground
WARNING
Do NOT remove hydraulic tank filler cap or disconnect or remove any hydraulic system line or fitting
unless hydraulic system pressure has been relieved. Hydraulic system pressure can be over 2,500 psi
(17,237 kPa), even with engine and pump OFF. To relieve pressure, lower all hydraulic attachments to
the ground and shut down engine. Move control levers through all operating positions, then SLOWLY
loosen hydraulic tank filler cap. After maintenance, tighten all connections before applying pressure.
Escaping hydraulic fluid under pressure can penetrate the skin, causing serious injury or death.
At operating temperature hydraulic oil is hot. Allow hydraulic oil to cool before disconnecting any
hydraulics. Failure to do so could result in injury.
CAUTION
Wipe area clean around all hydraulic connections to be opened during removal. Cap oil lines and plug open-
ings after removing lines. Contamination of hydraulic system could result in premature failure
NOTE
Hydraulic system tests are performed when required by troubleshooting to confirm a problem or iden-
tify a faulty component within the system. These tests can also be performed after repair operations to
ensure faults have been corrected and performance is within specifications.
Hydraulic system tests consist of operating checks and analysis of test results to indicate if corrective
action is needed.
Perform PMCS for hydraulic system as outlined in (WP 0019 00) and (WP 0020 00) before performing
tests.
