CHAPTER 12. CRANES, SHOVELS, AND EARTHMOVING EQUIPMENT MAINTENANCE

TM 5-2420-224-34

CHAPTER 12

CRANES, SHOVELS, AND EARTHMOVING EQUIPMENT MAINTENANCE

This chapter illustrates and describes procedures for maintenance of the cranes, shovels, and

earthmoving equipment. A list of tasks contained in this chapter is shown below.

Page

12-1

Backhoe Main Frame Replacement and Repair . . . . . . . . . . . . . . . . . . . . . . . .

12-6

Crane Mast Replacement and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-13

Crane Inner Boom Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-15

Crane Outer Boom Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-17

Crane Extension Boom Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-19

Crane Gear Bearing Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-25

Crane Intermediate Gear Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-29

Crane Drive Gear and Bushings Replacement . . . . . . . . . . . . . . . . . . . . . . . .

12-31

Crane Pinion Gear Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-34

Crane Pinion Gear Bushings Replacement . . . . . . . . . . . . . . . . . . . . . . . . . .

BACKHOE MAIN FRAME REPLACEMENT AND REPAIR

This task covers:

a. Removal b. Inspection c. Repair d. Installation

References:

Applicable Configuration:

TM 5-2420-224-20

SEE

TM 9-237

Tools and Special Equipment:

Equipment Condition:

Shop Equipment, SC 4910-95-CL-A31

Tool Kit, SC 5180-90-CL-N26

Condition Description

Reference

Shop Equipment, Welding, SC 4940-95-CL-B19

Backhoe Stabilizers

TM 5-2420-224-20

Removed

Materials/Parts:

Backhoe Swing Cylinders

TM 5-2420-224-20

Nut, Lock

Removed

Personnel Required: (3)

Backhoe Control Tower

TM 5-2420-224-20

Removed

Pintle Assembly Removed

TM 5-2420-224-20

12-1