CAT Terex MK20HE Single Boom Hydraulic Jumbo Operation, Maintenance & Training Manual – PDF DOWNLOAD
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CAT Terex MK20HE Single Boom Hydraulic Jumbo Operation, Maintenance & Training Manual – PDF DOWNLOAD
Description
CAT Terex MK20HE Single Boom Hydraulic Jumbo Operation, Maintenance & Training Manual – PDF DOWNLOAD
FILE DETAILS:
CAT Terex MK20HE Single Boom Hydraulic Jumbo Operation, Maintenance & Training Manual – PDF DOWNLOAD
Language : English
Pages : 205
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
CAT Terex MK20HE Single Boom Hydraulic Jumbo Operation, Maintenance & Training Manual – PDF DOWNLOAD
Safety Instructions
Before Operation
1. Study this manual and fully understand the controls.
2. Be sure all safety guards are securely in place.
3. Wear safety helmet, glasses and hearing protection when operating or working on machine.
4. Do Not operate machine with:
• Hydraulic or air leaks
• Broken or damaged electrical wiring or components
• Damaged hydraulic hoses or fittings
• Worn or damaged parts
5. Never refuel machine while engine is running.
6. Be sure all personnel are clear of the machine and work area before starting the engine or operating machine.
7. Be sure drill area is clear of all obstructions before operating machine.
8. Use safety chain when using towbar.
Operation
1. Do Not use the machine for any other purpose than what it was designed for. This machine is designed for blasthole drilling operations only.
2. Do Not wear jewelry or loose fitting clothing when working on machinery. Keep clothing and hands clear of moving parts.
3. Do Not travel on grades in excess of 35% (20o), or on soft or unstable ground or close to unsupported excavations.
4. Do Not move boom or machine if it is in a potentially unstable position.
5. Do Not stand directly under a boom or feed.
6. Do Not drill into or near a “bootleg” hole or any hole that may contain explosives.
7. Do examine the surface of the drill face before drilling to determine the possible presence of unfired explosives.
8. Do provide sufficient ventilation when running the engine in an enclosed area. Exhaust gasses contain carbon monoxide, a deadly poison, which is colorless and odorless.
9. Do keep work areas clean and clear of cuttings, hand tools and other objects.
TABLE OF CONTENTS:
CAT Terex MK20HE Single Boom Hydraulic Jumbo Operation, Maintenance & Training Manual – PDF DOWNLOAD
MK20HE Op, Maint, Training.pdf....................... 0 Parts Ordering & Product Support................. 3 Table of Contents................................ 4 Section 1 - Safety............................... 8 Overview of Potential Hazards................ 9 Safety Instructions.......................... 10 Section 2 - General Information.................. 12 MK20HE Articulated Hydraulic Jumbo........... 13 Pre-Operation Checklist...................... 15 Shutdown Procedure........................... 17 Bolt Torque Specifications................... 19 Section 3 - Hydraulics........................... 20 Vickers PVD45 Pump System.................... 21 Pump Drive................................... 24 Hydraulic Piston Pump - Main................. 25 Vickers PVD45 Test Procedure................. 27 Vickers PVD45 Troubleshooting................ 28 Vickers PVD45 System Pressure Adjustment..... 29 Independent Drill Rotation Circuit........... 31 Rotation Pump Test Procedure................. 33 Maximum Flow Adjustment.................. 34 Thermostatic Valve........................... 35 Nameplate Assembly - Drill Console........... 36 Hydraulic Schematic.......................... 37 Hydraulic Drilling Control Valve............. 39 Hydraulic Valve - Anti-Jam................... 40 Hydraulic Schematic - Drill Control.......... 41 Pressure Compensator Control................. 42 Hydraulic Valve - Drill Control.............. 43 Drill Control System......................... 44 Feed Circuit - Hydraulic Cylinder Drive...... 45 Hammer Collaring Circuit..................... 47 Automatic Retract Circuit.................... 49 Constant Sting Circuit....................... 50 Feed Paralleling System...................... 51 Hydraulic Boom Swing Limit................... 53 Boom System Overview......................... 55 Outrigger Circuit............................ 56 Anti-Jam System - Integrated Style........... 57 Field Adjustment of the Anti-Jam............. 60 Drilling with the Anti-Jam................... 60 Operating Instructions....................... 61 Drill Console Gauges..................... 62 Drill Console Controls................... 63 Electrical Accessories................... 69 Outriggers and Controls.................. 70 Cable Reel Controls...................... 71 MK20HE Startup and Operation................. 72 Setting up for Drilling.................. 72 Tramming the Unit........................ 73 Drill Operator's Maintenance Checklist....... 76 Preventive Maintenance....................... 77 General.................................. 77 Lubrication and Inspection............... 77 Machine Set-Up and Checklist................. 78 Periodic Manintenance Chart.................. 82 Troubleshooting.............................. 83 Hydraulic Cylinder - Typical................. 84 Hydraulic Filter - Charge Loop and Return.... 85 Hydraulic Filter - Inlet..................... 86 Section 4 - Boom................................. 88 MD84 Boom Assembly........................... 89 Hydraulic Schematic - Boom & Feed............ 90 Hydraulic Valve Assembly - Boom & Feed....... 91 Positioner Assembly.......................... 92 Boom Lift Cylinder Repair.................... 93 Rotary Actuator.............................. 95 Positioner Swing Cylinder Repair.............101 Boom Swing Limit Circuit.....................103 Boom Swing Cylinder - Repair.................105 Positioner Dump Cylinder - Repair............107 Section 5 - Feed.................................110 HFAS Feed Assembly...........................111 Drill Mounting Slide Assembly................113 Hose Tensioner Assembly......................114 Hose Reel Assembly...........................115 Section 6 - Rock Drill...........................116 Hydraulic Drill - HPR1-JT....................117 Nitrogen Charge Kit..........................119 Hydraulic Drill Troubleshooting..............120 Section 7 - Electrical...........................124 Electrical Checklist.........................126 Main Switchbox...............................127 General Description..........................128 Electrical Components........................129 Fuses and Circuit Breakers...................132 Electrical Components Arrangement............133 A.C. Schematic...............................134 Wiring Diagram...............................135 Main Switchbox Assembly......................136 Pushbutton Box Assembly......................137 Electric Lubricator Schematic................139 Electric Motor...............................140 Collector Ring Assembly......................142 Shutdown Procedure...........................148 Electrical System Troubleshooting............149 Section 8 - Air & Water..........................152 Air/Water Schematic..........................153 Air and Water System.........................154 Compressor Installation......................155 Drill Lubricator Assembly....................156 Air Compressor...............................157 Air/Water Valve..............................167 Heat Exchanger...............................168 Centrifugal Pump - 10 Stages.................169 Compressed Air Data..........................171 Atmospheric Pressure Data....................173 Gas Compositions Data........................174 Altitude vs. Compressor Performance..........176 Altitude vs. Rock Drill Air Consumption......177 Section 9 - Carrier..............................178 Getman Model 440-DJC.........................180
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