CAT Shield Roof Support 1295 2743-2×3833-1750 Operation and Maintenance Manual (7420 247 000 BA 00) – PDF DOWNLOAD
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CAT Shield Roof Support 1295 2743-2×3833-1750 Operation and Maintenance Manual (7420 247 000 BA 00) – PDF DOWNLOAD
Language : English
Pages : 362
Downloadable : Yes
File Type : PDF
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CAT Shield Roof Support 1295 2743-2×3833-1750 Operation and Maintenance Manual (7420 247 000 BA 00) – PDF DOWNLOAD
About this manual
This chapter contains important information that makes it easier for you to use this manual. It also provides you with information about the structure of the manual and the symbols and signs used in it.
Before starting work
Using an operating manual that is not written for the shield support at hand can result in a safety hazard for yourself and others. Make sure the information on the shield complies with that given in the operating manual.
This operating manual belongs to the
Shield support 1295/2743-2×3833-1750 *
ID No.: 7420 249 000 00 01 (face shield)
ID No.: 7420 249 000 00 02 (face shield)
and is only permitted to be used for shields of this type.
The operating manual must be accessible at all times to all persons
working on or with the shield.
There should, if possible, always be an operating manual for the
shield available at the place of operation
TABLE OF CONTENTS:
CAT Shield Roof Support 1295 2743-2×3833-1750 Operation and Maintenance Manual (7420 247 000 BA 00) – PDF DOWNLOAD
1 About this manual
Before starting work 1 3
Persons for whom the operating manual is intended 1 3
Purpose of this operating manual 1 4
Signs and symbols used 1 4
2 Your safety
Personnel 2 3
Operation 2 3
Installation and repairs 2 4
Operating conditions 2 5
Intended use 2 5
Unauthorized use 2 5
Safety instructions 2 6
3 Storage and transport
Storage 3 3
Storing the equipment 3 3
Storing used equipment 3 4
Transport 3 4
Load units, dimensions and weights 3 4
Before transport 3 4
Transport of the face shield 3 7
Transport safety device 3 8
Transport safety device, relay bar assembly 3 8
4 Installation
Preassembly of the shield units 4 3
Installation of the shield units 4 3
Pressure equalization of the electronic control system 4 5
Supply connections for auxiliary supply 4 6
Requirements for the face hydraulic system 4 9
Water spraying system requirements 4 10
Commissioning 4 11
To be observed prior to commissioning 4 11
How to put the support into operation 4 13
Anticorrosion protection of hydraulic components 4 13
Caterpillar Global Mining Europe GmbH, Lünen 2012
”
Table of content
Shield support 1295/2743-2×3833-1750
5 Operation
Requirements 5 3
Operating conditions 5 3
Safety requirements 5 6
Operation of the shield support 5 9
Work safety 5 15
Overview of the shield components 5 16
Arrangement of the shield components 5 16
Overview of shield hydraulics 5 18
Functions of the HP ball valves on the shield 5 18
HP ball valve versions 5 20
Arrangement of the hydraulic components on the face shield
5 21
Control units 5 29
Repair and emergency operation 5 31
Shield functions 5 32
Plug with pressure relief 5 35
Maintenance 5 36
Special measures 5 36
Daily maintenance 5 37
Weekly maintenance 5 38
Every six months 5 38
Regularly scheduled damage assessment 5 38
Troubleshooting 5 39
Instructions for troubleshooting 5 39
Fault localization 5 39
3/2-way or pilot valve 5 42
Piloted check valves 5 42
Internal bypass inside the prop 5 43
Pressure relief valve defective 5 43
Defective or clogged filter 5 43
6 Technical data
Description 6 3
Main subassemblies 6 4
Main dimensions 6 6
Skid 6 7
Relay bar assembly 6 9
Canopy 6 11
Caving shield 6 13
Technical data of steel structure, face shield 6 14
Hydraulic cylinders 6 15
Hydraulic prop, two-stage (Z1) 6 15
Design of hydraulic cylinders 6 18
Lifting cylinder (Z2) 6 19
Stabilizing cylinder (Z3) 6 20
Caterpillar Global Mining Europe GmbH, Lünen 2012
Table of content
Doc No : 7420 249 000 BA 00 SSSU / 01
Shifting ram (Z4) 6 21
Pressure relief valves 6 22
Angles of inclination of the canopy 6 24
Permissible media 6 25
Hydraulic fluids 6 25
Quality of the process water 6 27
Greases and lubricating pastes 6 29
Tightening torques 6 31
Screws and bolts with ISO metric thread 6 31
7 For your information
Standards and directives 7 3
Applied standards and directives 7 3
Identification of the shield 7 5
Name plate 7 5
Shield number 7 5
Caterpillar Global Mining Europe GmbH, Lünen 2012
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