CHAPTER 1 INTRODUCTION - TM-5-3820-205-10-2

Figure 1. Jaw crsuher, left front, three-quarter view.

TM-5-3820-205-10-2 Crusher Jaw: Diesel and Elctronic Driven Wheel Mounted Pneumatic Tires 75 Ton Per Hour Eagle Crusher Model 5157 and 5157A Manual
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TM 5-3820-205-10-2 CHAPTER 1 INTRODUCTION Section I. GENERAL 1. Scope a. These instructions provide information on the operation, lubrication, and preventive maintenance checks and services of the equipment, accessories, components, and attachments for the Eagle Jaw Crusher Models 5157, 5157A, and 5157B. b. Appendix I contains a list of publications applicable to this manual. Appendix II contains the basic issue items authorized for use by the operator. The maintenance allocation chart is located in TM 5-3820-205-20-2. c. Numbers in parentheses on illustrations indicate quantity. Numbers preceding nomenclature callouts indicate the preferred maintenance sequence. d. You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to Publications and Blank Fonns) direct to: Commander, U.S. Army Tank-Automotive Command, ATIN: AMSTA-MB, Warren, MI 48397-5000. A reply will be furnished to you. 2. Maintenance Forms, Records, and Reports DA forms and procedures used for equipment maintenance will be only those prescribed by DA Pam 738-750, The Army Maintenance Management System (TAMMS). Section II. DESCRIPTION AND DATA 3. Description The Eagle Crusher Models 5157, 5157A, and 5157B (figs. 1 and 2) are diesel engine driven, movable jaw-type, primary crushing and screening units used in quarry rock operation or gravel pit operation in conjunction with other major units. It can also be used by itself to produce fill or base course jaw crusher run material. The jaw crusher is a self- contained unit with the exception that it must be supplied 220/440 volts from a power source to operate the motors that actuate the conveyors and scalper vibrating screen. During operation, the material to be crushed is fed into the pan feeder assembly (fig. 1), and is conveyed by the apron to the scalper vibrating screen assembly (fig. 2), where it is separated by the grizzly bars and a preselected screen. A two-level operator's platform provides access to the operator's control box and engine controls. The basic components are the engine, pan feeder assembly, scalper vibrating screen assembly, discharge conveyor, and the jaw crusher assembly. 1

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