TM 5-2420-230-24-1
K-7. POWER STEERING PRESSURE AND FLOW TESTING.
This Task Covers:
a. Testing
b. Follow-On Maintenance
INITIAL SETUP
Test Equipment
Equipment Conditions
Flow meter, capable of measuring 10 gpm (39 L/min)
TM or Para
Condition Description
Gauge, pressure, capable of measuring 0 to 3,000 psi
Vehicle positioned on level
(0 to 20 684 kPa)
ground.
Parking brake applied.
Tools and Special Tools
Engine shut OFF.
Pan, drain, Item 29, Appendix B
Electrical master switch OFF.
Tool kit, common no. 2, Item 36, Appendix B
"Do Not Operate" tag attached
Tool kit, general mechanics, Item 38, Appendix B
to ignition switch.
Tool outfit, HSTRU, Item 40.1, Appendix B
Drawings Required
Materials/Parts
TM 5-2420-230-24P Figure 109
None
TM 5-2420-230-24P Figure 112
Personnel Required
MOS 62B, Construction Equipment Repairer (2)
Estimated Time to Complete
Refer to MAC in Appendix B
References
None
a. Testing.
Hydraulic fluid (Dexron III) is TOXIC. Wear protective goggles and gloves; use only in
well-ventilated area; avoid contact with skin, eyes, and clothes. Skin and clothing that come in contact
with hydraulic oil should be washed immediately. Saturated clothing should be removed immediately.
Failure to comply may result in injury to personnel.
NOTE
Ensure no 90-degree elbows or hoses with tight bends are used when connecting meters and/or gauges.
Ensure suitable hoses and fittings are used when connecting meters and/or gauges.
If you are attempting to troubleshoot power steering problems, review the flow and pressure testing
portions of the "Diagnosis & Troubleshooting" material starting on page K-16.
(1)
Place drain pan beneath power steering gearbox.
(2)
Refer to page K-19 for flow and pressure testing procedure.
b. Follow-On Maintenance.
(1)
Return power steering gear box and corresponding hoses are returned to proper configuration (Para 5-9).
(2)
Check for leaks and refill power steering reservoir (Para 5-5).
END OF TASK
K-4.1
Change 1