TM 5-2420-230-24-1
10-9. HYDRAULIC OIL SERVICING.
This Task Covers:
a. Preparation
b. Draining
c. Refilling
d. Follow-On Maintenance
INITIAL SETUP
Test Equipment
References
None
FO-4, Hydraulic schematic
Tools and Special Tools
Equipment Conditions
Pan, drain, Item 29, Appendix B
TM or Para
Condition Description
Tool kit, general mechanics, Item 38, Appendix B
Hood raised.
Front, left-hand belly plate
removed.
Materials/Parts
Compound, sealing, pipe thread, Item 22, Appendix C
Dexron III, Item 27, Appendix C
Drawings Required
TM 5-2420-230-24P Figure 152
Personnel Required
MOS 62B, Construction Equipment Repairer
Estimated Time to Complete
Refer to MAC in Appendix B
a. Preparation.
NOTE
To raise the temperature of the hydraulic system oil, operate FEL or backhoe for 5 min.
(1)
Ensure hydraulic system is at normal operating temperature. This can be determined by feeling the hydraulic
reservoir; it should be warm.
(2)
Ensure hydraulic components on IHMEE are in retracted position (TM 5-2420-230-10).
b. Draining.
(1)
Place drain pan beneath hydraulic reservoir.
The IHMEE hydraulic system operates at oil pressures up to 3,000 psi (20 680 kPa). Never
disconnect any hydraulic line or fitting without first dropping system pressure to zero. Failure to
comply may result in serious injury or death to personnel.
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.
(2)
Remove drain plug from bottom of hydraulic reservoir.
(3)
Allow hydraulic oil to completely drain from reservoir.
Change 1