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18 Safety devices shall be tested as described in the maintenance schedule of the instruction book(s) to determine that they are
in good operating condition.
19 Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions against toxic vapors when
cleaning parts in or with cleaning products.
20 Observe scrupulous cleanliness during maintenance and repair. Keep away dirt by covering the parts and exposed openings
with clean cloth, paper or tape.
21 Protect the engine, alternator, air intake filter, electrical and regulating components, etc. to prevent moisture ingress, e.g. when
steam-cleaning.
22 When performing any operation involving heat, flames or sparks on a machine, the surrounding components shall first be
screened with non-flammable material.
23 Never use a light source with open flame for inspecting the interior of a machine, pressure vessel, etc.
24 On portable units, support the drawbar and axle(s) securely if working underneath the units or when removing a wheel. Do not
rely on jacks.
25 Prior to stripping a compressor, engine or other machine or undertaking major overhaul on it, prevent all movable parts with a
mass exceeding 15 kg (30 lbs) from rolling over or moving.
26 When repair has been completed, make sure that no tools, loose parts or rags are left in, or on, the machine, the prime mover
or the driving gear. The machine shall be barred several revolutions to ensure that there is no mechanical interference within
the machine or driver.
1.3 Safety during use and operation
To lift a unit, all loose or pivoting parts, e.g. doors shall first be securely fastened. Do not attach cables, chains or ropes directly to
the lifting eye; apply a crane hook or lifting shackle meeting local safety rules.
Helicopter lifting using the lifting eye is forbidden.
It is strictly forbidden to dwell or stay in the risk zone under a lifted load. Never lift the unit over people or residential areas.
Lifting acceleration and retardation shall be kept within safe limits.
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Before towing the unit:
- ascertain that the pressure vessel is depressurized,
- check the drawbar, the brake system and the towing eye. Also check the coupling of the towing vehicle,
- check that the pivot wheel or stand leg is safely locked in the raised position,
- ascertain that the towing eye can swivel freely on the hook,
- check that the wheels are secure and that the tires are in good condition and inflated correctly,
- connect the signal cable, check all lights and connect the pneumatic brake couplers,
- attach the safety break-away cable to the towing vehicle,
- remove wheel chocks, if applied, and disengage the parking brake.
- Apply safety chains to tow vehicle.
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If the unit is to be backed up by the towing vehicle, disengage the overrun brake mechanism (if equipped).
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Never exceed the maximum towing speed of the unit.
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Place the unit on level ground and chock the wheels before disconnecting the unit from the towing vehicle. Unclip the safety
break-away cable
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When the unit has to operate in a fire-hazardous environment, each engine exhaust has to be provided with a spark arrestor to
trap incendiary sparks.
6
The exhaust contains carbon monoxide which is a lethal gas. When the unit is used in a confined space, conduct the engine
exhaust to the outside atmosphere by a pipe of sufficient diameter (min. 4 inches); do this in such a way that no extra back
pressure is created for the engine. If necessary, install an extractor.
7
When operating in a dust-laden atmosphere, place the unit so that dust is not carried towards it by the wind. Operation in
clean surroundings considerably extends the intervals for cleaning the air intake filters and the cores of the coolers.
8
Locate the unit away from walls. Take all precautions to ensure that hot air exhausted from the engine and driven machine
cooling systems cannot be recirculated. If such hot air is taken in by the engine or driven machine cooling fan, this may cause
overheating of the unit; if taken in for combustion, the engine power will be reduced.
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No external force may be exerted on the air outlet valves, e.g. by pulling on hoses or by installing auxiliary equipment directly
to a valve, e.g. a water separator, a lubricator, etc.
10 Distribution pipework and air hoses must be of correct size and suitable for the working pressure.
Never use frayed, damaged or deteriorated hoses. Replace hoses and flexibles of which the lifetime expired. Use only the
correct type and size of hose end fittings and connections. Install safety pins on quick type hose connections.
A hose connected to a 2 inch (50 mm) valve must be provided with a safety wire (8 mm) fixed to the hose for effective
pressures as from 145 psi (10 bar) up, although it is recommended to apply such safeguard already from (60 psi) 4 bar up.
The safety wire ends have to be attached, one to the eye provided next to the compressor air outlet valve, the other one to a
point near to the air inlet of the applied equipment.
Finally a wire mesh hose can be fixed over the hose ends to dampen the blast in case a connection starts leaking or should
become undone.
Close the compressor air outlet valve before connecting or disconnecting a hose. Ascertain that a hose is fully depressurized
before disconnecting it.
When blowing through a hose or air line, ensure that the open end is held securely. A free end will whip and may cause injury.
Never play with compressed air. Never apply it to your skin or direct an air stream at people. Never use it to clean dirt from
your clothes. When using it to clean down equipment, do so with extreme caution and use eye protection.
