TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 475 of 1205
TM 9-2320-387-24-l DIAGNOSTIC FLOWCHART BRAKE SYSTEM PARKING BRAKES OK T OPTIONS VISUAL IS THE FLUID IN THE MASTER CYLINDER FREE OF CONTAMINATION AND FILLED TO THE PROPER LEVEL? REASON FOR QUESTION Contaminants in fluid or low fluid level decreases braking efficfency, resulting in little or no braking action. 1 POSSIBLE PROBLEMS 1 SERVICE BRAKES HYDRAULIC SYSTEM I I I KNOWN INFO I TEST OPTlONS IS THE MASTER CYLINDER 1. VISUAL WORKING PROPERLY AND 2. FOLLOW TEST PROCEDURE FREE OF LEAKS? ATTHE RIGHT. PARKING BRAKE OK FLUID CLEAN AND FULL I REASON FOR QlJESTlON POSSIBLE PROBLEMS BRAKE COMPONENTS HYDRAULIC COMPONENTS MECHANICAL COMPONENTS 83 1 1 TEST OPTIONS KNOWN INFO PARKING BRAKE OK MASTER CYUNDER OK ARE THE BRAKE LINES, HYDRAULIC LINES, AND CALIPER PISTON SEALS FREE OF EVIDENCE OF LEAKING AND STRUCTURAL DAMAGE? VISUAL CHECK FOR LEAKS, DAMAGE, BINDING, KINKING, ETC. REASON FOR QUESTION If the braking system is losing fluid, stopping distances will increase I until the brakes fail due to lack of fluid and fluid pressure. POSSIBLE PROBLEMS BRAKE COMPONENTS HYDRO-BOOSTER MECHANICAL COMPONENTS