Safety Instructions - Bosch MOT 240 Bedienungsanleitung

2.

Safety instructions

Mains voltages
High voltage
Hazardous voltages occur in both the lighting system and the
electrical system of a motor vehicle. If contact is made with live
parts (e.g. with the ignition coil), there is a risk of electric shock
from flashover voltages caused by damaged insulation (e.g.
ignition cables which have been attacked by martens). This
applies to both the primary side and the secondary side of the
ignition system, to the cable harness and the plug connections, to
the lighting systems (Litronic) and to the tester connections.
Safety precautions:
- All testers must be connected to properly grounded, shock-
proof sockets (in accordance with VDE 0100 or the correspon-
ding country-specific regulations).
- Testers must always be connected using the power cables
supplied with them.
- All extension cables must be fitted with shock-proof contacts.
- Any cables with damaged insulation must be replaced (e.g.
power or ignition cables).
- Connect testers to the lighting system and switch them on
before connecting them to the vehicle.
- Connect testers to the engine ground or to the battery (B-)
before switching on the ignition.
- Always switch off the ignition before performing any work on
the electrical system of the vehicle. The term „work" includes
connecting testers, replacing parts of the ignition system,
removing assemblies (e.g. generators), connecting assem-
blies to a test bench, etc.
- Wherever possible, tests and settings should always be car-
ried out with the ignition switched off and the engine stationary.
- If tests or settings are carried out with the ignition switched on
or the engine running, care must be taken not to touch any live
parts. This applies to all the connecting cables of the testers
as well as to the connections of any assemblies at the test bench.
- Test connections must always be made using suitable connectors
(e.g. Bosch testing cable set or vehicle-specific adapter cables).
- Make sure that all test connections are properly plugged in and
secure.
- Switch off the ignition before disconnecting the tester from the
engine ground or the battery (B-).
- Never open the casing of the screen.
- Never open the housing of the tester.
Danger of Implosion
There is a danger of the screen tube imploding if the screen is
improperly handled (e.g. the tube is subjected to some form of
impact, sudden temperature change, the glass is damaged).
Safety precautions:
- Make sure that the screen is well vented so that heat can
properly dissipate.
- Never cover the vents (e.g. with a towel) while the screen in
switched on.
- Never allow a fluid to penetrate the screen.
- Place the screen away from direct sunlight.
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Danger of acid burning
When exhaust gas measurements are taken, the sam-
pling hoses which are used release a highly caustic gas
(hydrogen fluoride) that can cause acid burning in the respiratory
system when heated to temperatures in excess of 250 °C
(482 °F) or in the event of fire.
Rules of conduct:
- Consult a doctor immediately after inhaling!
- Always wear gloves made of neoprene or PVC
when removing residues left after a fire.
- Neutralize any residues left after a fire with a calcium hydroxide
solution. This produces non-toxic calcium fluoride, which can
be washed away.
Acids and alkalis can cause severe burning on unprotected
skin. Hydrogen fluoride in combination with moisture (water)
forms hydrofluoric acid.
The condensate which accumulates in the sampling hose and
in the condensate container likewise contains acid.
When replacing the O measuring sensor, bear in mind that it
2
contains alkali.
When replacing the NO measuring sensor, bear in mind that
it contains acid.
Rules of conduct:
- Rinse any affected parts of the skin immediately in water, then
consult a doctor!
- NO and O measuring sensors are hazardous waste and must
2
be disposed of separately. Your Bosch specialist equipper can
dispose of sensors in the proper manner.
If liquid crystal escapes from a damaged liquid crystal display,
it is imperative to avoid direct skin contact, inhalation and
swallowing.
Rules of conduct:
- Wash the skin and clothing thoroughly with soap and water if it
has come into contact with liquid crystal.
- If you have inhaled or swallowed liquid crystal, consult a doctor
immediately!
If fluid (electrolyte) escapes from batteries and rechargeable
batteries, avoid getting it on your skin or in your eyes.
Rules of conduct:
- If contact with skin or eyes happens nevertheless, wash the
affected parts immediately with clean water and then consult
a doctor.