CAT DBT – Shield 2550/5500-2×3926-1750 Operating Manual – PDF DOWNLOAD

Description

CAT DBT – Shield 2550/5500-2×3926-1750 Operating Manual – PDF DOWNLOAD

FILE DETAILS:

CAT DBT – Shield 2550/5500-2×3926-1750 Operating Manual – PDF DOWNLOAD

Language :English
Pages :150
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

CAT DBT Shield 2550/5500-2×3926-1750 Operating Manual – PDF DOWNLOAD

Doc. no.: 7420 140 000 BA 00

About this manual

This chapter provides important information making it easier for you to use this manual. It contains information on the structure of the manual and the symbols and characters used.

Before starting to work

applicable operating manual:  Take care to ensure that the operating manual available to you is applicable
for the type of equipment or machine used.

machine type:                          :This operating manual is intended for:
                                                         Model DBT Shield 2550/5500-2×3926-1750
and is only permitted to be used for equipment of this type.

new operation manual:           The operating manual must be accessible at all times to all persons
working on or with the machine. It should, if possible, always be available
at the place of operation

Send for a new operation manual immediately if the present manual is no longer complete

Who is this operating manual intended for?
This operating manual is intended for those persons who work with or
on the machine. Every person working on the face or in the intersection
between face and entry or in the entry must read this operating
manual.
This includes persons who:
■ operate the machine
■ are in charge of transport
■ perform assembly/disassembly work
■ find/fix faults
■ perform daily routine work at the face or in the entry
■ perform maintenance work
■ perform repair work

TABLE OF CONTENTS:

CAT DBT – Shield 2550/5500-2×3926-1750 Operating Manual – PDF DOWNLOAD

Doc. no.: 7420 140 000 BA 00
Index
1 About this manual
Before starting work 1 3
Purpose of this operating manual 1 4
Characters and symbols used 1 4
2 Your safety
Personnel 2 3
Operation and maintenance 2 3
Repair 2 4
Conditions of operation 2 5
Use in conformance with specifications 2 5
Use contrary to specifications 2 5
Safety instructions 2 6
Basic principles 2 6
Storage and transport 2 7
Installation 2 8
Operation 2 9
Maintenance 2 11
Overview of the safety instructions 2 15
3 Storage and transport
Storage 3 3
Storage of new equipment 3 3
Used equipment 3 5
Transport 3 5
Special measures 3 8
4 Installation
Pre-assembly of the shield units 4 3
Installation of the shield units 4 3
Supply connections 4 5
Coupling between the connections 4 6
Requirements to the face hydraulic system 4 6
Start-up 4 7
To be observed prior to start-up 4 7
Start-up of the shields 4 9
Corrosion protection of hydraulic components 4 9
DBT GmbH, Lünen 2005E
Index
DBT – Shield 2550/5500-2×3926-1750
5 Operation and maintenance
Basic requirements 5 3
Conditions for operation 5 3
Safety requirements 5 6
Operation of the shield 5 9
Safe working 5 14
Operation of the shield hydraulics 5 15
Location of hydraulic components at the shield 5 15
Operation of the dual backflush filter 5 27
Repair and emergency operation 5 28
Operation and functions of the control valve block 5 30
Maintenance 5 34
Special measures 5 34
Daily inspection 5 35
Weekly inspection 5 35
To be done every six months 5 35
Assessment of damage according to schedule 5 35
Trouble shooting 5 36
Fault finding on shield hydraulic system 5 36
Fault localization 5 36
3/2-Way valve or pilot valve 5 39
Pilot-operated check valves 5 39
Internal by-pass in props 5 40
Faulty pressure relief valve 5 40
Defective or blocked filter 5 40
6 Technical data
Shield variants 6 3
Main subassemblies 6 5
Base with lemniscatic links and central shifting unit 6 8
Shield canopy 6 12
Caving shield 6 17
Side seal 6 18
Technical data of the shield, steel structure 6 20
Hydraulic system 6 23
Double-telescopic prop 6 29
Function 6 30
Hydraulic cylinder, double and single acting 6 31
Stabilizing cylinder 6 32
Baselift cylinder 6 32
Shifting cylinder 6 33
Technical data of hydraulic cylinders 6 34
Pressure relief valves 6 38
Electrohydraulic control system 6 40
Electronic shield control 6 41
Angles of inclination of the canopy 6 43
DBT GmbH, Lünen 2005E
Index
Doc no : 7420 140 000 BA 00 VRVS / 01
Accessories 6 44
Anti-topple device “canopy – canopy” 6 44
Anchoring device base – base 6 46
Operating media 6 47
Hydraulic fluids 6 47
Lubricating greases and pastes 6 51
Tightening torques 6 53
Screws with metric coarse thread DIN 13 6 53
Screws with metric fine thread 6 53
7 For your information
Our service 7 3
Service addresses 7 3
Identification of shields 7 5
Type plate 7 5
Shield number 7 5
DBT GmbH

S.M 1/4/2025