4-34 Item Description Service action Service brake pump flow check ö Hydraulic oil must be at operating temperature for the check. Engine OFF. Stop engine. Operate brake pedal approximately 20 times. Start engine and run at low idle. Record number of seconds required for low brake pressure indicator lamp to go out. LOOK : Indicator lamp must go out in less than seconds from time engine starts. NOTE : Indicator will not come on approximately 1 second after starting engine. OK Check completed. NOT OK Check for brake circuit leakage. Go to next page. IF OK Install a cap on line connected to inlet of brake valve and repeat pump flow check. If time does not decrease, check for worn brake pump.
Service brake capacity check Engine running. OFF OK Check completed. NOT OK Check brake pressure. IF OK Inspect brake disk. Release ON P