Fluid Or Gas Under Pressure - Kalmar DRF420-60S5 Maintenance Manual

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UDRF01.04GB
B Safety – Safety instructions
Special cases
Diesel fuel oil with an additive of petrol has a reduced flash point. Ex-
plosion risk even at room temperature. The explosion risk due to
warmed diesel fuel oil is greater than for gasoline.
When changing oil in the engine, hydraulic system and transmission,
keep in mind that the oil may be hot and can cause burn injuries.
Welding on or near the machine. If diesel or other oils have leaked
out and have been absorbed by rags, absorbing agent, paper or oth-
er porous material, glowing welding sparks can cause ignition and
an explosive spread of fire.
When a battery is being charged, the battery electrolyte water is di-
vided into oxygen and hydrogen gas. This mixture is very explosive.
The risk of explosion is especially high when a booster battery or a
rapid-charge unit is used, as these increase the risk of sparks.
The machines nowadays contain a lot of electronic equipment. Dur-
ing welding work, the control units must be disconnected and cur-
rent turned off using the battery disconnect switch. Otherwise,
strong welding currents can short-circuit the electronics, destroy ex-
pensive equipment, and may also cause an explosion or fire.
Welding work must never be carried out on painted surfaces (re-
move paint by blasting at least 10 cm around the welding or cutting
point.) Use gloves, breathing protection and protective safety glass-
es. Also, welding work must never take place near plastic or rubber
materials without first protecting them from the heat. Paints, plas-
tics and rubber generate various substances when heated that may
be hazardous to health. Be careful with machines that have been ex-
posed to intense heat or a fire.
Safety precautions
Store hazardous substance in approved and sealed container.
Make sure that there is no ignition source near flammable or explo-
sive substances.
Make sure that ventilation is adequate or there is an air extraction
unit when handling flammable substances.

Fluid or gas under pressure

High-pressure lines can be damaged during work, and fluid or gas
can stream out.
There may be high pressure in a line even if the pump has stopped.
Therefore, gas or fluid can leak out when the connection to the hose
is loosened.
A gas cylinder subjected to careless handling can explode, for exam-
ple, if it falls onto a hard surface. Gas can stream out through dam-
aged valves.
Maintenance manual DRF 400–450
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