12
TM 5-2420-231-23-3
FIELD MAINTENANCE
-
BACKHOE BOOM ARM ASSEMBLY REPLACEMENT
0
292
Removal, Cleaning and Inspection, Installation
INITIAL SETUP
Materials/Parts - Continued
Tools and Special Tools
Tool Kit, General Mechanic's
Locknut (2)
0
0
(WP 0376, Item 117)
Lockwasher (2)
0
Pan, Drain, 5 gal. Capacity (WP 0376, Item 54)
0
Personnel Required
Trestle, 10-Ton (WP 0376, Item 120)
0
Two
Wrench, Combination, 12 Pt, 1-1/4"
0
0
(WP 0376, Item 125)
References
Wrench, Combination, Standard Length, 12 Pt,
TM 5-2420-231-10
0
0
1-1/16" (WP 0376, Item 127)
0
Lifting Device (2,000-lb capacity)
0
WP 0374 (Group Number 0717, 0723, and
0
0814)
Materials/Parts
Cap Set, Protective, Dust and Moisture
Equipment Conditions
0
(WP 0375, Item 4)
Backhoe dipper support arm removed
0
Grease, Automotive and Artillery (GAA)
0
(WP 0375, Item 14)
Estimated Time to Complete
Rag, Wiping (WP 0375, Item 25)
0
9.0 hr
Tag, Marker (WP 0375, Item 33)
0
0
WARNING
Allow hydraulic system to cool before performing procedure. Hot metal parts can cause
severe burns. Wear eye, hand, and skin protection when working with heated parts.
Hydraulic oil is very slippery. Immediately wipe up any spills.
Some hoses and lines are under pressure and can spray hydraulic oil while being
disconnected.
Failure to follow these warnings may result in injury or death to personnel.
CAUTION
Plug and cap all hoses and fittings to prevent contamination. Failure to follow this caution
may result in damage to the machine.
NOTE
Tag and mark lines to aid in installation.
0292-1