TM 5-3805-262-203-19. AIR BRAKE SYSTEM TROUBLESHOOTINGMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1. LOW AIR PRESSURE WARNING BUZZER SOUNDS.Do not operate loader if low air pressure warningi f A I R P R E S S g a g e i n d i c a t i o n i s n o t i n g r e e ncould cause death or serious injury and extensiveloss of braking power.buzzer is sounding andzone. Failure to do soproperty damage due toStart engine and operate for several minutes to build up air pressure.At left instrument panel, check AIR PRESS gage indication.a. If AIR PRESS gage indicates in green zone, replace air pressurewarning switch (page 5-48).b. If AIR PRESS gage does not indicate in green zone, go to MAL-FUNCTION 3 below (page 3-121).2. AIR PRESSURE GAGE INDICATES LOW AIR PRESSURE (LOW AIR PRESSURE BUZZER NOTSOUNDING).Step 1.Remove engine right side panels (page 9-14).At air reservoir port, disconnect wire lead from pressure sendert e r m i n a l.AIR PRESS gage should indicate in green zone.a. If AIR PRESS gage indicates in green zone, go to step 2 below.b. If AIR PRESS gage does not indicate in green zone, check forshort circuit to ground in wire lead between gage and pressuresender.If wire lead checks okay, remove instrument cluster (page 5-34)and replace AIR PRESS gage (page 5-39).3-120
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