Terex SKS Series Infinity Blasthole Drill Service Manual (426337)

Format: PDF (Printable Document)

File Language: English

File Pages: 584

File Size: 120.74 MB (Speed Download Link)

Brand: Terex

Model: SKS Series Infinity Blasthole Drill

Book No: 426337

Type of Document: Service Manual

Categories: PDF, Terex

$ 50

Terex SKS Series Infinity Blasthole Drill Service Manual (426337)

The Terex SKS Series Infinity Drill is designed for large-scale blasthole drilling where accuracy and mechanical endurance matter. This Service Manual details the drill’s rotary drive assembly, mast support structure, hydraulic feed functions, lubrication circuits, and drivetrain sequencing. It is especially valuable when diagnosing erratic drill penetration or air system load fluctuations.

Applications & Use Cases

Correcting inconsistent drilling depth or feed speed
Inspecting mast alignment and structural wear
Replacing rotary drive bearings, seals, or coupling components
Managing lubrication flow to high-stress zones
Adjusting hydraulic feed settings for different rock profiles

FAQ
Does this manual help with rotary drive rebuilds?
Yes, it outlines disassembly and reassembly procedures.

Does it cover mast structural inspections?
Yes, including stress concentration points.

Safety Note
Secure the mast fully before performing maintenance at height.

📘 Show Index

Terex SKS Series Infinity Blasthole Drill Index:

Parts Ordering & Product Support
Safety Information
Product Description
SKS Locator
Table of Contents
Section 1 Safety
- Overview of Potential Hazards
- Safety
  - Before Operation
  - Clearances from Overhead High Voltage Lines
  - Operation
  - After Operation
  - Maintenance
  - Equipment Transfer
Section 2 Operator’s Cab / Controls
- Graphic Symbol Legend
- Operator Control Panel
- Instrument Panel
- Optional Instrument Panel
- System Pressure Gauge Panel
- Switch Panel
- Lights, Circuit Breakers & Heater/AC
- Cab Heater
  - Cab Heater Fault Isolation
- AC / Heater / Pressurizer Unit
- Air Conditioner
  - Maintenance and Servicing Schedule
  - General Service Information
  - Troubleshooting
Section 3 Main Frame / Crawlers
- Main Frame Troubleshooting
  - Main Frame Repair
  - Leveling Jack Cylinders
  - Lubricating Jack Casings
- Mast Elevating Cylinders
  - Remove
  - Repair
  - Replace
- Crawler Assembly
  - Crawler Component Repair
- Metric Bolt Torque Specifications
- Track Maintenance
  - Before Operating the Machine:
  - General Maintenance
- Track Tension Adjustment
  - Hydraulic Tensioner
  - Description
  - Nitrogen Tensioner
  - Repair
- Nitrogen Tensioner Assembly
  - Nitrogen Tensioner – Filling Instructions
  - Nitrogen Tensioner – Pressure Check
  - Nitrogen Tensioner – Pressure Release
- Track Chain – Separate
- Track Chain Repair
  - Track Link – Repair & Replace
- Track Shoes Installation
  - Track Link Position
  - Track Shoe – Mounting to Track Chain
  - Track Shoe – Mounting to Track Chain
- Track Shoe Bolt Torque (Direct Torque Method)
- Track Shoe Bolt Torque (Torque Turn Method)
- Track Chain and Shoe Installation
  - Track Chain & Shoe – Assembly & Installation
- Final Drive – General Description
- Final Drive Unit Removal
  - Removal from Track Frame
  - Installation into Track Frame
- Final Drive Maintenance
  - Oil Check / Change
- Final Drive Oil
  - Specifications
  - Recommended Oils
- Final Drive Assembly
- Final Drive Disconnect
- Final Drive – Disconnect & Parking Brake
  - Towing Procedure – Gear Drive Disconnect
  - Parking Brake – Removal & Installation
- Idler Assembly
- Idler Unit Removal
- Idler Unit Assembly
- Track and Support Rollers
  - Track Roller – Removal & Disassembly
  - Support Roller – Removal & Disassembly
  - Track and Support Roller – Assembly
  - Track and Support Roller – Test and Install
Section 4 Drive Train / Compressor
- Engine and Drive Train Service Procedures
  - Engine Service Procedures
  - Engine & Compressor Air Cleaner Service
- Flexible Drive Coupling
  - Flexible Drive Coupling Service
- Pump Drive
  - Assembly – Removal & Replacement
- Pump Drive Gearbox (Cotta)
  - Pump Drive Gearbox – Repair
- Pump Drive Gearbox (Funk)
  - Pump Drive Gearbox – Repair
  - 3″ Input Shaft Assembly
- Hydraulic Piston Pumps
  - Piston Pumps – Removal & Replacement
  - Piston Pumps – Repair
    - AA4VG Piston Pump Service Manual
    - A11VLO Piston Pump Repair Manual
  - Gear Pumps – Removal & Replacement
  - Gear Pumps – Repair
- P330/P350/P365 Pump Service Manual
  - Service Instructions
  - Tool List
  - Disassembly
  - Assembly
  - Lubrication and Oil Recommendations
  - Recommended Start-up Procedure for New or Rebuilt Pump
  - Recommended Test Procedure
- Compressor Drive Coupling
  - Removal and Replacement
- Compressor Unit – Removal:
- Compressor Installation
  - Before Installation & Start-Up
- Main and Auxiliary Air
  - Compressed Air Subsystem Components (low pressure)
  - Compressed Air Functions
- Sulliscrew Compressor Unit
  - Functional Description
  - Control System
- Butterfly Inlet Control System (high pressure)
- Butterfly Inlet Control System (low pressure)
  - Initial Set-up Procedure
  - Maintenance
- Compressor Maintenance
- Sullair Drill Compressor 250 to 2000 CFM Low Pressure
- Sullari Drill Compressor 500 to 1350 CFM High Pressure
- Compressor Oil Filter
  - Routine Maintenance
  - Changing Filter Elements
  - Service Bulletin
- Radiator/Oil Cooler Assembly
  - Square Tube Installation Tools – L&M Radiator (Mesabi)
  - Round Tube Installation Tool – L&M Radiator (Mesabi)
  - Maintenance and Repair
- Radiator & Core Assembly
  - Cleaning & Tube Removal
  - Seal Installation
  - Tube Installation
- Aluminum Tube Oil Cooler
  - Standard Parts
  - External Cleaning
  - Tube Removal & Replacement
  - Internal Cleaning
- Copper Tube Oil Cooler
  - Standard Parts & Tools
  - Cleaning & Tube Removal
  - Tube Removal & Seal Installation
  - Cleaning Tube Ends & Lubrication
  - Tube Installation
  - Pressure Testing
Section 5 Dust Control Systems
- Dust Control System Functions
- Dust Collector
  - Basic Specifications
  - Initial Startup
  - Fan Speed Adjustment
  - Direction of Fan Rotation
  - Air System
  - Electric Timer
  - Routine Maintenance
  - Troubleshooting Guide
- Water Pump
  - Servicing Instructions
  - Servicing the Plunger Packings
  - Reassembling Plunger Packings
  - Servicing the Pump Valves
  - Pump Specifications
  - Torque Requirements
  - Reassembling Valve Parts
  - Servicing the Crankshaft
  - Servicing the Crossheads
Section 6 Mast / Rotary Drive / Pipe Rack
- Hoist and Pulldown Cylinder
  - Removal from Mast Assembly
  - Repair
  - Installation
  - Hoist / Pulldown Cable Adjustment
- Hoist/Pulldown Cable Replacement
- Rotary Head Guide Alignment
- Rotary Drive Assembly
  - Removal from Mast
  - Installation
- Rotary Drive Gearbox (built in air swivel)
  - Item Listing
  - Repair
  - Shaft Seal Replacement
- Rotary Drive Gearbox Motor
  - Trouble Shooting
- Winch Assembly
  - Wire Rope
  - Wire Rope Clips
  - Wedge Sockets
  - Grooved Drums
  - Plain (Smooth) Drums
  - Drums – Multiple Layers
  - Winch Assembly Service
- Installation, Maintenance & Service Manual
  - Explanation of Model #
  - General Safety Recommendations
  - Theory of Operation
  - Winch & Wire Rope Installation
  - Recommended Preventative Maintenance
  - Troubleshooting
  - Disassembly of Winch
  - Planet Carrier Service
  - Motor Support – Brake Cylinder Service
  - Brake Clutch Service
  - Winch Assembly
  - Recommended Bolt Torque
- H.O.B.O. Wrench
- Pipe Positioner
- Carousel Pipe Rack
  - Pipe Rack Bearings – Removal
  - Pipe Rack Components – Inspection
  - Pipe Rack – Assembly and Installation
  - Pipe Rack Roller – Remove and Replace
  - Pipe Rack Roller – Disassembly and Assembly
Section 7 Hydraulic Systems
- Hydraulic System
  - Hydraulic Reservoir and Return Filters
  - Drill Tooling Circuit
  - Open Loop System (Low Pressure)
  - Closed Loop System (High Pressure)
- Main Hydraulic Pumps
  - AA4VG HD Main Hydraulic Pumps
    - AA4VG180HD PUMP
    - AA4VG Pump – HD Control Module
    - AA4VG Pump – Flow Diagram
    - Charge Pump – Flow Diagram
  - Before Making Pump Adjustments
  - Mechanical Centering
  - Hydraulic Centering – HD Pump Controls
  - High Pressure Valves and Pressure Cut-off (POR) Adjustments
  - Charge Pressure Circuit
  - Charge Pressure Adjustment
- Mast Mounted Control Valve (SD8)
  - Adjustment Procedure
  - Specifications
  - Spools
  - Parallel Working Sections – Circuit Diagram
  - Electro – Hydraulic Kit (24VDC)
- Main Control Valves (SD25 & SD16)
  - Deck Mounted Control Valves
- 4 Section Valve (SD25)
  - Specifications
  - Parallel Working Sections – Circuit Diagram
  - Torque Specifications
  - Assembly
- 5 Section Valve (SD16)
  - Specifications
  - Parallel Working Sections – Circuit Diagram
  - Torque Specifications
  - Assembly
- Counterbalance Valve
  - Counterbalance Valve Adjustments
- Mast Elevating Cylinders
  - Test and Adjustment
- Leveling Jack Cylinders
  - Adjustment
- Hoist/Pulldown Cylinder Counterbalance Valve
- Hydraulic Operated Breakout Wrench
  - Setting of Sequence Valves
- H.O.B.O. Wrench Circuit
  - Operation
- Loop Filters (optional)
  - Routine Maintenance
  - Changing Filter Elements
- Charge Filter
  - Routine Maintenance
  - Changing Filter Elements
- Main Return and Case Drain Filter
  - Routine Maintenance
  - Changing Filter Elements
- Hydraulic Cylinder Repair
Hydraulic Piping – Cab Controls
Hydraulic Schematic – SKS
Rotary Torque Control
Section 8 Electrical Components
- Jump Starting
- Batteries and Circuit Breakers
- Welding Precautions
- Electrical Schematic (electronic engine)
Section 9 Lubrication & Preventive Maintenance
- Service Points – Mainframe
- Service Points – Mast
- Lubrication – General
  - Equipment Lubrication
  - Care of Lubrication Points
  - Lubrication Diagrams and Charts
- Lubrication & Maintenance Chart
- Lubricant Specifications
  - Hydraulic System
  - Hydraulic Tank Capacity
  - Compressor Lubrication
  - Lubricating Grease
  - Gear Lubricant
- Lubrication – Compressor and Winch
  - Compressor Lubrication Procedure
  - Braden BG8 Winch Lubrication
- Preventive Maintenance
  - Hydraulic System Maintenance
  - Cooling System Maintenance
  - Cooling System Freeze Protection
  - Air Cleaners
  - Air Filter Elements
  - Electrical System
  - Scheduled Oil Sampling Analysis
- Torque Values for Split Flange Connections
- Torque Values for Hydraulic Tubes & Fittings
- Torque Values for Standard Fasteners
Section 10 Optional Equipment
- Auto Lube System
- Lube Pump Air Motor
  - Parts List
  - Warnings
  - Service & Disassembly Procedure
  - Troubleshooting
- Lube Pump Tube
  - Owner/Operator Manual
  - Parts List
  - Disassembly & Troubleshooting
- Auto Lube Injectors
- Filter/Regulator/Lubricator
  - Filter Maintenance and Repair
  - Regulator Maintenance and Repair
  - Lubricator Maintenance and Repair
  - Lube Controller – Owner/Operator Manual
- Drilling Depth Indicator
  - Set-up
  - Main Display Loop