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© 200423 2-21 Inspection and adjustment BRAKE SYSTEM AND COMPONENTS ΧΦ65/75/85 series 6 5 Checking circuit 3 Make sure the leak in circuit 2 is remedied 2. Turn off the engine and simulate a leak in 3. The pressure in circuit 1.2 and 4 may not fall 4. The pressure in circuit 3 for the parking brake Checking circuit 4 Make sure the leak in circuit 3 is remedied 2. Turn off the engine and simulate a leak in 3. The pressure in circuit 1 and 2 may not fall Checking circuit 3 flow-back function Make sure the leak in circuit 4 is remedied 2. Turn off the engine and simulate a leak in 3. The pressure in circuit 3 for the trailer circuit |