Doosan DL220, Operation And Maintenance Manual

Page: 36 / 250

OP001012 Safety
1-24
BEFORE STARTING ENGINE
Work Site Precautions
Before starting operations, thoroughly check the area for any
unusual conditions that could be dangerous.
Check the terrain and condition of the ground at the work site,
and determine the best and safest method of operation.
Make sure the ground surface is as hard and horizontal as
possible before carrying out operations. If there is a lot of dust
and sand on the work site, spray water before starting
operations.
If you need to operate on a street, protect pedestrians and cars
by designating a person for work site traffic duty or by erecting
fences and posting "No Entry" signs around the work site.
Erect fences, post "No Entry" signs, and take other steps to
prevent people from coming close to or entering the work site. If
people come close to a moving machine, they may be hit or
caught by the machine, and this may lead to serious personal
injury or death.
Waterlines, gas lines, phone lines and high-voltage electrical
lines may be buried under the work site. Contact each utility and
identify their locations. Be careful not to damage or cut any of
these lines.
Check the condition of the riverbed, and the depth and flow of
the water before operating in water or crossing a river. NEVER
work in water that is more than the permissible water depth.
Refer to “Allowable Water Depth” on page 3-22.
Any object in vicinity of boom could represent a potential hazard,
or cause the operator to react suddenly and cause an accident.
Use a spotter or signal person when working near bridges,
phone lines, work site scaffolds, or other obstructions.
Minimum levels of insurance coverage, work permits or
certification, physical barriers around the work site or restricted
hours of operation may be mandated by governing authorities.
There may also be regulations, guidelines, standards or
restrictions on equipment that may have to be followed for local
requirements. There may also be regulations related to
performing certain kinds of work. If there is any question about
whether your machine and work site complies with the
applicable standards and regulations, contact your local
authorities and agencies.
Avoid entering soft ground. It will be difficult for the machine to
escape.
Avoid operating your machine to close to the edge of cliffs,
overhangs, and deep ditches. The ground may be weak in such
areas. If the ground collapses, the machine could fall or tip over
resulting in serious injury or death.
FG013735
No Entry
WARNING
Figure 14