Terex R20 Hydra-Trac Drill Index:

• Introduction
• Parts Ordering and Product Support
• Table of Contents
• General Description
• Component Location (Cab Machine)
• Component Location (Non Cab Machine)
• U.S./ Metric Conversions
• Glossary of Terms
• Safety – Section 1
  • Overview of Potential Hazards
  • Safety Instructions
• Main Frame / Tracks – Section 2
  • Track Oscillation Cylinders
  • Track Maintenance
  • Track Tension Adjustment
  • Metric Bolt Torque Specifications
  • Track Disassembly
  • Track Link Repair
  • Track Link Assembly
  • Track Shoe -Mounting to Track Chain
    • Track Shoe Bolt Torque (Direct Torque Method)
    • Track Shoe Bolt Torque (Torque Turn Method)
  • Track Chain & Shoe -Assembly & Installation
  • Idler Unit
    • General Description
    • Idler and Tensioner Assembly
    • Removal and Disassembly
    • Assembly and Installation
  • Track Rollers
    • Removal & Disassembly
    • Track Roller Assembly
    • Track Roller – Test & Install
  • Support Roller
    • Removal & Disassembly
    • Support Roller Assembly
  • Final Drive
    • Towing Procedure
    • Final Drive Service Manual
• Power Train – Section 3
  • Isuzu Engine
    • Specifications
    • Common Replacement Parts
    • Oil and Filter Change
    • Air Filter
    • Engine Removal and Installation
    • Fuel System
    • Fuel/Water Sedimentor
    • Fuel Contamination Control
    • Radiator/Oil Coolers
      • Inspection and Maintenance
      • Hydraulic Oil Cooler
      • Removal of Radiator/Oil Coolers
      • Coolant Specifications
    • Hydraulic Pump
      • Pump Removal
      • Pump Repair
      • Pump Installation
      • PVH Piston Pump Overhaul Manual
    • Pump Drive
      • Pump Drive Removal andInstallation
      • Pump Drive Disassembly
      • Inspection and Repair:
      • Assembly:
      • Lubrication:
    • Canopy
      • Removal of Canopy
• Electrical and Hydraulic Systems – Section 4
  • Hydraulic Schematic
  • Electrical Schematic – Non Cab Machine
  • Electrical Schematic – Cab Machine
  • Feed Force & Feed Flow Adjustments
  • Hydraulic Cylinder Repair
• Air System – Section 5
  • Air Compressor Air Filter
  • Air Compressor Oil and Filter
  • Compressor Oil Separator Element
  • Compressor Oil Strainer
  • Discharge Valve
  • Air Compressor Assembly
  • Air Compressor Hosing
  • Thread Greaser Hosing
  • Air Compressor Removal & Installation
  • Drive Belt Tensioning
  • Air Compressor Specifications
  • Compressor Repair
  • Air Inlet Valve Assembly
  • Air End Assembly
    • Disassembly Procedure:
    • Inspection
    • Assembly Procedure:
  • Detergent System (Optional)
    • Servicing the “Y” Strainer
    • Detergent System FreezeProtection
  • Drill String Grease System
    • Filter Maintenance
    • Lubricator Maintenance
    • Regulator Maintenance
    • Air Powered Grease Pump
      • Model 82716 Operator Manual
  • Filter/Regulator for Dust Collector
• Boom & Feed Components – Section 6
• Cylinder Feed
  • Boom Lift Cylinder
  • Boom Swing Cylinder
  • Feed Dump Cylinder
  • Feed Swing Cylinder
  • Feed Extension Cylinder
  • Boom Shim/Wear Pad Replacement
    • Inspection
    • Feed and Inner Boom Tube -Removal
    • Inner Boom Tube – Removal
    • Boom Tube, Wear Pad & ShimsInstallation
    • Feed Table Installation
  • Feed Assembly
    • Removal from Feed Table
    • Installation and Adjustment
    • Feed Cylinder – Removal
    • Feed Cylinder – Installation and Adjustment
    • Cable Adjustment
  • Drill Mounting Slide
    • Wear Pads – Replacement andShimming
    • HPR1H-ATW Drill/Mounting Slide
      • Drill – Removal & Installation
    • HPR45 Drill/Mounting Slide
      • Drill – Removal & Installation
• Boom & Feed Components – Section 6
  • UFH Chain Feed
  • Boom Lift Cylinder
  • Boom Swing Cylinder
  • Feed Dump Cylinder
  • Feed Swing Cylinder
  • Feed Extension Cylinder
  • Boom Shim/Wear Pad Replacement
    • Inspection
    • Feed and Inner Boom Tube -Removal
    • Boom Tube, Wear Pad & Shims Installation
    • Feed Table Installation
  • Feed Table Pivot Pin
    • Adjustment and Maintenance
  • Feed Assembly (Inline)
  • Feed Assembly (offset)
  • Inline Feed – Removal
    • Installation and Adjustment
  • Offset Feed – Removal
    • Installation and Adjustment
  • HPR45 Hydraulic Rock Drill
    • Removal from Mounting Slide
    • Installation on Mounting Slide
    • Mounting Slide Adjustment
  • HPR1H-ATW Hydraulic Rock Drill
    • Removal from Mounting Slide
    • Installation on Mounting Slide
    • Mounting Slide Adjustment
  • Feed Chain Adjustment
  • Traveling Hose Reel
    • Adjustment
    • Timing Procedure:
    • Maintenance
  • Feed Drive
    • Maintenance
    • Feed Drive Motor
      • Repair Instructions
    • S1A Final Drive Service Manual
• Pressure Settings & Adjustments – Section 7
  • Engine Low Idle
  • Engine High Idle
  • Main Hydraulic Pump
    • Standby Pressure
    • Main System Pressure
  • Drill and Positioning Valves
    • Pressure Settings
  • Brake/Tram Valve
  • Air Compressor
    • Subtractive Pilot
  • “Smart Drill” Valve Adjustment
  • Dust Collector Assembly
    • Timer Setup
    • Manometer Setup Instructions
    • Setting Fan Speed
    • Fan Removal and Installation
    • Operational Variables
    • Fine Tuning
    • Troubleshooting Hints
    • Air Pressure Regulator
  • Air Regulator/Lubricator (grease system)
  • Air Regulator/Lubricator (drill lubrication)
  • Vertical Indicator
  • Centralizer Adjustment
• Hydraulic Rock Drill – Section 8
• HPR45-51 Service 416421.pdf
  • Introduction HPR45 & HPR51 Drills
  • Overview of Potential Hazards
  • Safety Instructions
  • Before Operation
  • Maintenance
  • Operation & Maintenance
    • Start-Up Procedure
    • Operating Tips
  • General Maintenance Tips
    • Accumulator Pressures
    • Contamination
    • Major Repairs
  • Preventive Maintenance
    • At the beginning of every shift:
    • Every Two Hours:
    • Every Week or Every Time the Shank is Changed:
    • Every 500 Hours or 3 Months:
  • Troubleshooting
  • General Tips on Drill Overhaul
  • Tools Required
  • Seal Installation Tool
  • Special Tools
  • HPR45/51 Exploded View
  • General Information
  • Water Swivel Assembly – Removal
  • Water Swivel Housing – Repair
  • Chuck End Cover – Removal
  • Chuck Driver & Pinion Gear – Removal & Inspection
  • Rotation Motor – Removal
  • Rotation Housing – Removal from Cylinder
    • Inspection
  • Drill Cylinder Components
  • Backhead – Removal and Inspection
  • Cylinder – Internal Parts
  • Hammer and Bushings – Removal and Inspection
  • Shuttle Valve – Internal Parts
  • Shuttle Valve – Removal and Inspection
  • Accumulator – Internal Parts
  • Capscrew Torque Specifications
  • HPR45/51 Exploded View
  • Cylinder – Internal Parts
  • Rear Cylinder Bushing and Backhead – Installation
  • Hammer – Installation
  • Front Cylinder Bushing – Installation
  • Cylinder – Internal Parts
  • Accumulator – Internal Parts
  • Accumulators – Assembly and Installation
  • Shuttle Valve – Internal Parts
  • Shuttle Valve – Assembly
  • Shuttle Valve – Installation
  • Rotation Housing – Assembly
  • Chuck Driver – Assembly
  • Shank Installation
  • Water Swivel – Assembly
  • Charging the Accumulators
    • Requirements
    • Procedure
  • Checking the Accumulator Charge Pressure
  • Accumulator Charge Kit
  • Hydraulic Oils for Percussion Drills
  • Grease Lubrication with a Hand Grease Gun
  • Grease Specifications
  • HPR45 Wear Tolerances
  • HPR51 Wear Tolerances
  • MAINTENANCE RECORD
  • Index
• Lube & Torque Specifications – Section 9
  • Hydraulic Oils for Percussion Drills
  • Lubrication and Inspection
    • Hydraulic System
    • Hydraulic Drill
  • Maintenance Schedule
  • Daily Operational Checklist
  • Bolt Maintenance
  • Bolt Torque Specifications
  • Maintenance Record