Cat Bucyrus GD25 GD35 GD45C Rotary Blasthole Drill Maintenance Manual BI615901 – PDF DOWNLOAD

There are two related publications furnished with the GD-25/35C Rotary Blasthole Drill. Both are
listed below and are referenced in this manual.
GD-25/35C Rotary Blasthole Drill Operator Manual

GD-25/35C Rotary Blasthole Drill Parts Manual

List of Illustrations vi
List of Tables General
Scope
Description
Engine, Pumps, and Compressor
Pulldown and Drilling Systems
Tranroi119 system
Control System ~
Controls and Indicators
Technical Characteristics
Section II
Optional Equipment
Introduction
Drilling Equipnent ·· A
I Pipe Rack
Pipe Carousel
I Slant Drilliflg
I Drill Plpe
Drilling Lights
Weather Protection
Cold Weather
Hot Weather
Engine Related
Ether Injection
Water Injection
Theory
System
Open Loop System Four Spool Valve Bank Circuits
Seven Spool Valve Bank Circuits
Pipe Indexing Circuit (Optional)
Return Circuit
Closed Loop System
Pumps Selector Valves
Tram/Drill Control Valves
Motors
Pulldo\ vll A dj ust
Air System
Compressor
Reservoir
Section IV
Troubleshooting
Introduction
Preliminary Checks
Corrunon Systems
References
Operating Systems
Section V
Maintenance Procedures
Introduction
Common Procedures
Bleeding Cylinders
Priming PUlllpS
Pressure Measurements
Flushing Hydraulic System
Good Repair Practices
Welding Procedures
Closed Loop
Normal Conditions
Repair/Replacement 7
Adjustments 9
Rotary Driye 13
Normal Conditions , 1 11
Repair/Replacement ·
Adjusbnents
Pulldo\\111 System
Normal Conditions
Repair/Replacement
Adjustments
Track Drive System
Normal Conditions
Repair/Replacement
Adjusbnents
Open Loop PLDnp
Normal Conditions
Repair/Replacement
Adjustments
Main ,Jacks ~
Normal Conditions
Repair/Replacement
Adjusbnents
Breakout Equipnent
Normal Conditions
Repair/Replacement
Adjusbnents
Mast Jacks
Normal Conditions
Repair/Replacement
Adjustments
Paragraph Title
11 Winch
11 1 Normal Conditions
11 2 Repair/Replacement
11 3 Adjustments
12 Air System
Normal Conditions
Repair/Replacement
Adjustments
Clutch and Gearbox
Normal Conditions !
Repair/Replacement
Adjustments
Pipe Carousel
Normal Conditions
Repair/Replacement
Adjustments ~
Pii;>e Rack
Normal Conditions
Repair/Replacement
Adjustments
Optional Heaters
Electric Circuits
18 Miscellaneous Components