TM 5-3805-261-20Section I. BRAKE TROUBLESHOOTING.9-1.GENERAL INFORMATION. This section lists the common brake malfunctions which may occur during theoperation of the 130G Grader. You should perform the tests, inspections and corrective actions in the order listed. Followthe troubleshooting procedures listed below step-by-step until you can go no further.9-2.BRAKE TROUBLESHOOTING PROCEDURES. This section cannot list all possible malfunctions, nor can it listall possible tests, inspections or corrective actions. If a malfunction is not listed, contact your supervisor.BRAKE TROUBLESHOOTING AND MAINTENANCE PROCEDURES.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONa.PARKING BRAKE DOES NOT ENGAGE CORRECTLY.Step 1. Check the clearance adjustment on parking brake control valve.If the clearance is not correct--contact Direct Support.Step 2. Check the parking brake control valve.If the control valve is worn, damaged or defective--contact Direct Support.Step 3. Check the quick release valve.If the quick release valve is worn, damaged or defective--contact Direct Support.Step 4. Check the rotochamber.If the rotochamber is damaged or defective--contact Direct Support.Step 5. Check the parking brake.If the parking brake is worn, damaged or defective--contact Direct Support.9-2
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