TM 5-2420-230-24-1
H-5. DIPPER REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
c. Follow-On Maintenance
INITIAL SETUP
Test Equipment
References
None
None
Tools and Special Tools
Equipment Conditions
Field, maintenance, basic, Item 23, Appendix B
TM or Para
Condition Description
Tool kit, common no. 2, Item 36, Appendix B
Vehicle positioned on level
Tool kit, general mechanics, Item 38, Appendix B
ground.
Equipment, suitable lifting
Parking brake applied.
Hydraulic valve manual override lever, BII,
Engine shut OFF.
Electrical master switch OFF.
"Do Not Operate" tag attached
Materials/Parts
to ignition switch.
Cap and plug set, Item 4, Appendix C
Backhoe extended.
Oil, molydisulfide, Item 45, Appendix C
Hydraulic pressure released.
Solvent, degreasing, Item 58, Appendix C
Tags, identification, Item 63, Appendix C
Drawings Required
Ties, cable, Item 68, Appendix C
TM 5-2420-230-24P Figure 172
Personnel Required
Estimated Time to Complete
MOS 62B, Construction Equipment Repairer (2)
Refer to MAC in Appendix B
a. Removal.
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 injury or death to personnel.
The swing tower assembly is heavy. To avoid personal injury, exercise extreme care when manually
handling the swing tower assembly. Failure to comply may result in injury or death to personnel.
Degreasing Solvent (MIL-PRF-680) is toxic and flammable. Keep away from heat or flame. Never
smoke when using solvent. The flashpoint for Type II Degreasing Solvent is 141 F (61 C). Wear
protective goggles, face shield, and gloves; use only in a well-ventilated area; avoid contact with
skin, eyes, and clothes; and do not breathe vapors. Failure to comply may result in injury or death
to personnel.
If personnel become dizzy while using cleaning solvent, immediately get fresh air and medical
help. If solvent contacts skin or clothes, flush with cold water. If solvent contacts eyes, immediately
flush eyes with water and get immediate medical attention.
Adhesives, solvents, and sealing compounds burn easily and give off vapors that are harmful to the
skin and clothing. To avoid injury or death, keep away from open fire when using these materials,
and use only in well-ventilated areas. If adhesives, solvents, or sealing compounds contact the skin
or clothing, wash immediately with soap and water, and rinse thoroughly. Failure to comply may
result in injury or death to personnel.
Use care when removing or installing snap and retaining rings. Snap and retaining rings are under
spring tension and can act as projectiles when released and could cause severe eye injury.
Change 1
