1 - AS/NZS 4233.1:1999 HIGH PRESSURE WATER (HYDRO) JETTING SYSTEMS - GUIDELINES FOR SAFE OPERATION AND MAINTENANCE
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 OBJECTIVE
7 - 1.3 APPLICATION
7 - 1.4 GENERAL PRINCIPLES
8 - 1.5 REFERENCED DOCUMENTS
8 - 1.6 RELATED DOCUMENTS
9 - 1.7 DEFINITIONS
9 - 1.7.1 Automatic unloader valve
9 - 1.7.2 Bar litres per minute
9 - 1.7.3 Bursting disc
9 - 1.7.4 Capable person (New Zealand)
9 - 1.7.5 Changeover valve
9 - 1.7.6 Class A systems
9 - 1.7.7 Class B systems
9 - 1.7.8 Competent person (Australia)
9 - 1.7.9 Dry shut-off valve
9 - 1.7.10 Dump system
9 - 1.7.11 Electrical control system
9 - 1.7.12 Fan jet
9 - 1.7.13 Flexible lance
9 - 1.7.14 Foot control valve
10 - 1.7.15 High pressure water cleaning
10 - 1.7.16 High pressure water cutting
10 - 1.7.17 High pressure water jetting system
10 - 1.7.18 Hose assembly
10 - 1.7.19 Jetting gun
10 - 1.7.20 Lancing
10 - 1.7.21 Moleing
10 - 1.7.22 Nozzle
10 - 1.7.23 Occupier
10 - 1.7.24 Operator
10 - 1.7.25 Operator trainee
10 - 1.7.26 Reaction force
10 - 1.7.27 Regulator valve
10 - 1.7.28 Refresher training
10 - 1.7.29 Relief valve
10 - 1.7.30 Retro gun
11 - 1.7.31 Rigid lance
11 - 1.7.32 Safety observer
11 - 1.7.33 Safety valve
11 - 1.7.34 Shotgunning
11 - 1.7.35 Should
11 - 1.7.36 Water jet
12 - SECTION 2 GENERAL RECOMMENDATIONS
12 - 2.1 GENERAL
12 - 2.2 LIMITATION AND USE
12 - 2.3 SAFEGUARDS
14 - SECTION 3 INSPECTION, CARE AND MAINTENANCE
14 - 3.1 GENERAL
14 - 3.2 MAINTENANCE
14 - 3.2.1 Pump unit
14 - 3.2.2 Filters and strainers
14 - 3.2.3 Hose assemblies
15 - 3.2.4 Re-end hose assemblies
15 - 3.2.5 Jetting nozzles
15 - 3.2.6 Jetting guns and lances
15 - 3.2.7 Foot control valves
15 - 3.2.8 Electrical equipment
15 - 3.2.9 Trailer and skid-mounted units
15 - 3.2.10 Engine controls
15 - 3.2.11 Operational leaks
15 - 3.3 SERVICING
16 - 3.4 REPAIRS
16 - 3.5 TOOLS
16 - 3.6 COMPATIBILITY
16 - 3.7 MAINTENANCE RECORD
17 - SECTION 4 PERSONAL PROTECTIVE EQUIPMENT
17 - 4.1 GENERAL
17 - 4.2 HEAD PROTECTION
17 - 4.3 EYE PROTECTION
17 - 4.4 BODY PROTECTION
17 - 4.5 HAND PROTECTION
17 - 4.6 FOOT PROTECTION
17 - 4.7 HEARING PROTECTION
18 - 4.8 RESPIRATORY PROTECTION
19 - SECTION 5 PRE-OPERATIONAL PROCEDURES
19 - 5.1 PLANNING
19 - 5.2 CHECKLIST
19 - 5.3 SYSTEM CONTROL
19 - 5.4 WORK AREAS
19 - 5.4.1 Area limits
19 - 5.4.2 Warning barriers
19 - 5.4.3 Warning notices
19 - 5.5 HOOK-UP
19 - 5.5.1 Hoses
20 - 5.5.2 Fittings
20 - 5.5.3 Nozzles
20 - 5.5.4 Preflushing
20 - 5.5.5 Electrical equipment
21 - SECTION 6 OPERATIONAL PROCEDURES
21 - 6.1 GENERAL
21 - 6.2 WORK AREAS
21 - 6.2.1 Limitations
21 - 6.2.2 Access
21 - 6.2.3 Approaching the jet operator
21 - 6.3 PERSONAL PROTECTIVE EQUIPMENT (PPE)
21 - 6.4 OPERATIONS
21 - 6.4.1 Commencement
21 - 6.4.2 Confined space working
21 - 6.4.3 Adjustments
21 - 6.4.4 Equipment malfunction
22 - 6.4.5 Reaction force
22 - 6.4.6 Effect of line pulses
22 - 6.4.7 Hose assemblies
22 - 6.4.8 Hose protection
22 - 6.4.9 Improper use
22 - 6.4.10 Operator positioning
22 - 6.4.11 Work stoppage
22 - 6.4.12 Work surface
22 - 6.4.13 Side protection
22 - 6.4.14 Corrosive materials
22 - 6.4.15 Additives
22 - 6.5 PRESSURIZING SYSTEMS
23 - 6.6 OPERATING PERSONNEL
23 - 6.6.1 Single-person operation
23 - 6.6.2 Multiple-person operations
23 - 6.6.3 Job rotation
23 - 6.6.4 Team leader
23 - 6.6.5 Communications
23 - 6.6.6 Fitness
24 - 6.7 HAND GUN OPERATIONS
24 - 6.8 LANCING AND PIPE CLEANING
24 - 6.8.1 Control
24 - 6.8.2 Retrojets
24 - 6.8.3 Clearance
25 - 6.8.4 Pressurization
25 - 6.8.5 End identification
25 - 6.8.6 Nozzle
26 - SECTION 7 OPERATIONAL AND TRAINING RECOMMENDATION FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS
26 - 7.1 QUALIFIED OPERATORS
26 - 7.2 TRAINING
27 - 7.3 REFRESHER TRAINING
28 - SECTION 8 PERMANENT CLEANING AREAS
28 - 8.1 GENERAL
28 - 8.2 ENCLOSURE
28 - 8.3 ACCESS
28 - 8.4 HAZARDS
28 - 8.5 ELECTRICAL HAZARDS
28 - 8.6 WASTE COLLECTION
29 - SECTION 9 INCIDENT AND ACCIDENT REPORTING FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS
29 - 9.1 REPORTING
29 - 9.2 PERSONAL INJURIES
29 - 9.3 MEDICAL RECOMMENDATION
29 - 9.4 IMMEDIATE FIRST AID
29 - 9.5 MEDICAL ALERT CARD
30 - APPENDIX A - PRESSURE FLOW DIAGRAM
31 - APPENDIX B - INSPECTION, CARE AND MAINTENANCE OF HOSE ASSEMBLIES
32 - APPENDIX C - TYPICAL EXAMPLE OF A PRE-SERVICE AND OPERATIONAL CHECKLIST FOR PRESSURIZED WATER JET CLEANING
33 - APPENDIX D - HAND SIGNALS