HARBEN CENTURY, Service Manual

Page: 9 / 83

Flowplant Century Pump Manual
POTENTIAL HAZARDS AND MISUSE OF HIGH PRESSURE EQUIPMENT

Never use a jetter that isn’t regularly serviced according to the manufacturer’s
recommendations.

When a jetter is used to clean drains & sewers that are contaminated with a
hazardous substance it is possible these may be entrained in the resulting
aerosol and inhaled by operators. Consider using respiratory protection.

Do not spray flammable liquids
– there is a risk of
explosion.

Ensure the correct fuel is used on all occasions or there
is a risk of explosion.

Never start the jetter when frozen. Operating a jetter whilst frozen could cause
high speed ice bullets to be ejected from the jetter hose on machine start up.

Never start jetting a drain, sewer or pipe unless the jet nozzle is safely inside
the drain and pointing in the direction that you intend it to travel.

When drain jetting a drain, sewer or pipe with an inside diameter that is not
small enough to prevent the hose from turning back on itself, a drain jet
extension (a piece of straight rigid tube equivalent to the pipe diameter)
should be fitted between the end of the hose and the nozzle.

Always use a safety leader hose at the beginning of the main jetting hose to
alert operators when the jet nozzle is nearing the manhole entrance.

Always consider the use of a tiger tail hose feed guide to protect the jetting
hose from abrasion and prevent premature failure.

Be aware that high pressure hoses can generate static electricity which may
need to be controlled when working in hazardous areas.

Never direct a high pressure water jet at electric power
lines or electrical equipment as serious injury or death
from electrocution could occur.

When jetting drains or sewers if there is a danger to the general public from
hoses laying across public walkways they must be covered in such a way as
to protect against injury from hose failure and tripping hazards.
Failure to follow the instructions where
this icon is shown can result in serious
injury or even death
6