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5. SAFETY PRECAUTIONS & WARNINGS
5.1 SAFETY PRECAUTIONS FOR WATER BLASTERS - GENERAL
1. Always turn off water at source / turn off machine and open lance to release any in-
line / stored pressure - before disconnecting hoses or working on machine.
2. Never aim high pressure water jet at anyone, at animals or at fragile items - injury or
damage could result.
3. Never allow untrained adults or minors use of the equipment.
4. Never use the machine if there are any leaks on the high pressure delivery side of the
pump.
5. Read and observe the manufacturer's instructions if chemicals are being used.
6. The “recoil” on larger machines is positive - lean forwards and brace yourself to take
it up!!!
7. any electrical components, motors / switchgear
or electrical boxes as injury or death may result.
8. Never water blast any fuel caps or oil caps and water can get into breather holes and
contaminate fuel or water. Never blast water directly into seals / bearings on shafts
where water penetration would be detrimental.
9. fragile items / surfaces that may be damaged by high
velocity water. Always carefully test on a small area.
10.
- i.e. Hat / face - eye protection, wet weather gear, boots and gloves
*particularly important if hot water / sandblaster or aggressive chemicals are being used.
11. Check pump / gearbox / engine oil levels before you start - daily !!
12. Keep hands, feet and hair away from all moving parts.
13. Never leave machine running unattended.
14.
- never adjust engine speed r.p.m. or safety by-pass valve in
an attempt to increase pressure.
15. Barricade off immediate work area - restrict access - erect hazard warning signs.
16. Never use high pressure water cleaner without protective sheaths on operator end of
h.p. Hose as a high pressure leak can injure operator.
17. In commercial / industrial sites class 'b' units (pressures over 7,000 PSI) should have
additional operators allocated as safety observer / machine minder subject to work
conditions / environment. This is a responsibility of the 'site occupier' to determine.
18. If two / three operators are working they should be physically separated by partitions
/ barriers.
19. Prior to high pressure water blasting, check location’s level of emergency /first aid.
NEVER HIGH PRESSURE BLAST:
NEVER WATER BLAST:
ALWAYS WEAR PROTECTIVE GEAR* (PPE)
EXTREME DANGER
PRESSURE CLEANERS
IN GENERAL
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