TM 5-2420-230-24-1
BACKHOE
Contents
Para
Page
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle Preparation and Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restore IHMEE to Operational Readiness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stabilizer Arm Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tow Pintle Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hitch Assembly Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic cleanliness is essential to the correct and safe operation of the backhoe. Ensure dirt and
debris are not allowed to enter hydraulic system. Failure to comply may result in damage to
equipment.
This section identifies backhoe components. There are no routine maintenance activities (other than visual inspection) detailed
for the following components:
Structure
Bucket
Hydraulic cylinders
Valve block
Pins
Bushings
Hoses and pipelines
Load-holding valves on stabilizer arm
cylinders
16-2. VEHICLE PREPARATION AND ISOLATION.
Prior to performing any maintenance functions on the backhoe of the Interim High-Mobility Engineer Excavator (IHMEE)
vehicle, 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 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).
(7)
Release hydraulic pressure (Para 10-5).