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BATTERY TRICKLE CHARGER WILL NOT OPERATE.
RESTORE IHMEE TO OPERATIONAL READINESS.

Maintenance Manual For Interim High-Mobility Engineer Excavator
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TM 5-2420-230-24-1
CHAPTER 4
POWER PACK
Contents
Para
Page
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
4-1
Vehicle Preparation and Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2
4-1
Restore IHMEE to Operational Readiness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3
4-2
Engine Oil Service and Filter Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4
4-2
Transmission Oil Service and Filters Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5
4-4
Drive Belt Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6
4-6
Power Pack Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7
4-8
Engine Component Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-8
4-22
Transmission Component Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-9
4-30
Separate Engine From Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10
4-34
Charging Pump Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-11
4-38
Engine Oil Sampling Valve Assembly Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-12
4-42
Transmission Oil Sampling Valve Assembly Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-13
4-43
Remote Shift Valve Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-14
4-45
Engine Mount Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-15
4-48
Transmission Mount Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-16
4-49
Transmission 2/4WD Control Cylinder Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-17
4-52
Transmission High/Low Control Cylinder Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-18
4-54
4-1. GENERAL.
This chapter contains procedures required for removal, replacement, installation, and maintenance of the engine and
transmission. This chapter should be read in conjunction with Appendix L and Appendix F.
4-2. VEHICLE PREPARATION AND ISOLATION.
Prior to performing any maintenance procedures on the Interim High-Mobility Engineer Excavator (IHMEE), complete the
following steps:
(1)
Ensure vehicle is positioned on level ground.
(2)
Ensure parking brake is applied (TM 5-2420-230-10).
(3)
Raise Front-End Loader (FEL), install maintenance arm, and lower FEL onto maintenance arm, as required
(TM 5-2420-230-10).
(4)
Shut OFF engine (TM 5-2420-230-10).
(5)
Place electrical master switch in OFF position (TM 5-2420-230-10).
(6)
Attach "Do Not Operate" tag to ignition switch (TM 5-2420-230-10).
Change 1
4-1


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