Cat HPR4519 5123 Hydraulic Rock Drill Service Manual PN 416421 – PDF DOWNLOAD

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Cat HPR4519 5123 Hydraulic Rock Drill Service Manual PN 416421 – PDF DOWNLOAD

CAT HPR4519 5123 HYDRAULIC ROCK DRILL SERVICE MANUAL PN 416421 – PDF DOWNLOAD:

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DESCRIPTION:

Cat HPR4519 5123 Hydraulic Rock Drill Service Manual PN 416421 – PDF DOWNLOAD

HPR4519 :

• This construction of HPR drills includes all the updates in the second generation rock drills, fewer parts, no side rods, detachable remote charging accumulators, and more effi cient hammer cycle. The “45” drill is most effectively used in conjunction with 45 mm drill string.
• Drill hammer output is matched to the drill string to provide the lowest cost of operation at optimum penetration. Most applications will be associated with larger hole diameters, 3-4 in. (76-02 mm) in underground uphole and benching.

HPR5123 :

• This construction of HPR drills includes all the updates in the second generation rock drills, fewer parts, no side rods, detachable remote charging accumulators, and more effi cient hammer cycle. The “51” drill is most effectively used in conjunction with 51 mm drill string, but can be adapted to 45 mm.
• Drill hammer output is matched to the drill string to provide the lowest cost of operation at optimum penetration. Most applications will be associated with larger hole diameters, 3 1/2-5 in. (89-127 mm) in benching.

TABLE OF CONTENTS:

Cat HPR4519 5123 Hydraulic Rock Drill Service Manual PN 416421 – PDF DOWNLOAD

SECTION 1 SAFETY
Hazard Classifi cation 1-3
Safety Symbols on Drills1-4
Safety Information 1-7
SECTION 2 GENERAL MAINTENANCE
Start-Up Procedure2-2
Operating Tips 2-2
Operation & Maintenance 2-2
Accumulator Pressures 2-3
Contamination 2-3
Major Repairs 2-3
General Maintenance Tips2-3
Preventive Maintenance 2-4
At the beginning of every shift: 2-5
Every Two Hours: 2-5
Every Week or Every Time the Shank is Changed: 2-5
Every 500 Hours or 3 Months: 2-5
SECTION 3 TROUBLESHOOTING
SECTION 4 DRILL DISASSEMBLY AND INSPECTION
General Tips on Drill Overhaul 4-2
Tools Required4-3
Special Tools 4-4
Seal Installation Tool 4-4
Special Tool List (Optional) 4-5
HPR4519 Exploded View 4-8
HPR5123 Exploded View 4-12
General Information 4-17
Water Swivel Assembly – Removal 4-17
Water Swivel Housing – Repair 4-18
Chuck End Cover – Removal 4-19
Chuck Driver & Pinion Gear – Removal & Inspection 4-20
Rotation Motor – Removal4-23
Rotation Housing – Removal from Cylinder 4-24
Inspection 4-24
Drill Cylinder Components 4-27
Backhead – Removal and Inspection 4-28
Cylinder – Internal Parts 4-28
Hammer and Bushings – Removal and Inspection 4-28
Shuttle Valve – Internal Parts 4-30
Shuttle Valve – Removal and Inspection 4-30
Accumulator – Internal Parts 4-34
Accumulator – Removal 4-35
Accumulator – Disassembly and Inspection4-36
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Table of Contents
SECTION 5 DRILL ASSEMBLY
General Tips on Drill Overhaul 5-2
Bolt Torque Specifi cations 5-3
Cylinder – Internal Parts 5-4
Rear Cylinder Bushing and Backhead – Installation 5-5
Hammer – Installation 5-7
Front Cylinder Bushing – Installation5-8
Cylinder – Internal Parts 5-8
Accumulator – Internal Parts 5-10
Accumulators – Assembly and Installation 5-10
Shuttle Valve – Internal Parts 5-12
Shuttle Valve – Assembly 5-13
Shuttle Valve – Installation 5-14
Rotation Housing – Assembly 5-16
Chuck Driver – Assembly 5-21
Rotation Housing – Assembly 5-22
Shank Installation 5-25
Water Swivel – Assembly 5-26
SECTION 6 CHARGING THE ACCUMULATORS
Charging the Accumulators 6-2
Requirements 6-2
Charging Procedure 6-3
Checking the Accumulator Charge Pressure6-4
Accumulator Charge Kit6-6
SECTION 7 SPECIFICATIONS
Hydraulic Oils for Percussion Drills 7-2
Hydraulic Drill Rotation Unit Lubrication 7-3
Grease Lubrication with a Hand Grease Gun7-3
Grease Specifi cations7-3
HPR4519 Wear Tolerances 7-4
HPR5123 Wear Tolerances 7-10
MAINTENANCE RECORD 7-15

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