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•
Remove the ignition key before starting work to prevent
accidental starting.
•
Be careful when testing hot engines! Hot exhaust manifolds
and other hot parts of the engine pose a burn risk!
•
Diesel injection systems can generate very high pressures!
Therefore, never loosen fuel lines that are under pressure.
Injury hazard!
•
Always follow the vehicle manufacturer's service instructions
or an approved manual to establish the required procedure
and data
Working method and device description:
Measuring compression pressure on a diesel engine
Prepare the compression tester for measurement by inserting a new
report card! To do this, press the feed button on the side (Fig. 1) until
the card holder can be removed from the slot on the left. (Fig.2)
Insert a new report card as shown in Fig. 3 and push the card
holder into the case from the right. (Fig.4)
To do this, press the feed button once if necessary.
The correct position of the holder is reached as soon as the needle
is on the measuring scale (lower edge in the window) in position
"cylinder 1".
1.
Apply the vehicle's handbrake! - Start the engine and let it run
(warm-up phase)
2.
Stop the engine as soon as the operating temperature is
reached.
3.
Disconnect the power supply to the injectors. If necessary,
disassemble all injectors or glow plugs - note the installation/
removal sequence (see vehicle-specific service instructions for
detailed information!)
4.
Fit the appropriate adapter and compression tester in place
of the injectors or glow plugs.
Caution: if the test is to be performed using the
glow plug hole, it is imperative to first disconnect
the fuel supply. Diesel fuel must not be injected,
otherwise there is a risk that the engine will start
unintentionally. This could cause personal injury
and/or damage to the measuring instruments!
5.
Turn on for at least 4 seconds until the needle of the pressure
tester moves forward.
6.
To prepare the tester for the next measurement, press the
feed button once for the diagram card holder
7.
Now repeat the test (steps 3 to 6) on all remaining cylinders.
16
1
3
4
2
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