HYDRAULIC SYSTEM TESTS - TM-5-2410-237-231159

TM 5-2410-237-23

HYDRAULIC SYSTEM TESTS

0227 00

THIS WORK PACKAGE COVERS

Preliminary Checks, Test Setup and Operational Checks, Tilt, Lift and Ripper Circuit Speed Tests, Hydraulic System Test

Procedures, Pressure Relief Valve Tests, Pump Efficiency Test (On Machine), Restoring Equipment

INITIAL SETUP

References

Tools and Special Tools

Tool kit, general mechanic's (Item 122, WP 0250

Shop equipment, general purpose repair (Item 106,

Tool outfit, hydraulic system test and repair

(HSTRU) (Item 124, WP 0250 00)

Cover, access (Item 26, WP 0250 00)

O-ring (Item 58, WP 0250 00)

Personnel Required

Materials/Parts

Two

Cap set, protective (Item 2, WP 0249 00)

Equipment Condition

Oil, lubricating (Item 23, 24 or 25, WP 0249 00)

Machine parked on level ground (TM 5-2410-237-

10)

Rag, wiping (Item 29, WP 0249 00)

Tag, marker (Item 37, WP 0249 00)

Floor plates removed (WP 0171 00)

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 2500 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

openings after removing lines. Contamination of hydraulic system could result in premature failure