Engine
SHOP MANUAL
Ch 1 page 217
H3 - Checking the safety valve for leaks
Wear protective goggles.
There is a risk of burn injuries when the safety valve is open.
1 Remove the return pipe 2 from the safety valve 1 to
the return fuel manifold 5.
2 Plug the connection in the return fuel manifold with
cap nut 812 890 or 814 555 and sealing plug 813 878.
3 Refit the return pipe at a slight angle to the engine.
Connect a transparent hose 4 to a union 3 - 366 082
on the pipe. Pull the hose down into a can or similar.
4 Start the engine.
5 Start “Checking the safety valve for leaks” in SDP3.
Follow the instructions in the check.
6 Refit the engine pipes. Torque tighten.
If the check failed:
Check that the following starting conditions have been met
and try again.
• The engine must be running.
• Parking brake activated.
• Gearbox in neutral.
• Clutch pedal released.
The accumulator may be under high pressure. Re-
duce the pressure using SDP3 before starting work.
WARNING
Figure 386
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