300CD (123.153) L5-3.0L DSL Turbo (617.952) (1982)
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2. Set control rod of injection pump to full load. For this purpose, pull control lever (1) to full load stop (2).
For this purpose, pull vacuum hose from vacuum control unit and lock regulating lever of injection pump to full load.
3. Unscrew injection line for cylinder 1.
On injection pump, screw on test line with sight glass and install return line to fuel tank of pump unit.
