SYMPTOM-continued -706880154

TM 5-4210-233-14&P-1

SYMPTOM

PAGE NO.

ELECTRICAL SYSTEM - AERIAL CONTROL PANEL - Continued

LADDER INTERCOM DOES NOT FUNCTION PROPERLY ................................ ............

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LADDER TIP SPEAKER DOES NOT FUNCTION PROPERLY ................... ....................

4-135

AERIAL LADDER HOIST CYLINDER LOCKING VALVES DO NOT RELEASE LADDER

WHEN RAISE/LOWER CONTROL IS PLACED IN "LOWER" POSITION .......................

4-135

ELEVATION SLOW-DOWN VALVE DOES NOT ENGAGE WHEN LADDER

REACHES 70' ELEVATION ................................ ................................ .............................

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FLOW MINDER (GALLONS-PER-MINUTE) METER DOES NOT FUNCTION PROPERLY

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OVERLOAD ALARM DOES NOTSOUND WHEN HYDRAULIC SYSTEM IS AT 1950 PSI

4-137

OVERLOAD ALARM SOUNDS CONTINUOUSLY WHILE HYDRAULIC SYSTEM

PRESSURE IS BELOW 1950 PSI................................ ................................ ....................

4-138

AERIAL MONITOR/NOZZLE DOES NOT RESPOND TO UPPER CONTROL BOX .........

4-138

AERIAL MONITOR/NOZZLE DOES NOT RESPOND TO LOWER CONTROL BOX

(ON AERIAL PANEL) ................................ ................................ ................................ .......

4-139

AERIAL MONITOR/NOZZLE DOES NOT RESPOND IN ONE DIRECTION ....................

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AERIAL MONITOR/NOZZLE WILL NOT FUNCTION IN ONE MODE (I.E., RAISE/LOWER)

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+12 VOLTS IS NOT PRESENT AT AERIAL MASTER BUSS ................................ ..........

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ELECTRICAL SYSTEM - EMERGENCY HYDRAULIC SYSTEM

EMERGENCY HYDRAULIC MOTOR DOES NOT OPERATE ................................ .........

4-141

EMERGENCY HYDRAULIC POWER ACTIVATED LIGHT DOES NOT ILLUMINATE ......

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ELECTRICAL SYSTEM - APU AND 1 1 O-VOLT CIRCUITS

AUXILIARY POWER UNIT (APU) DOES NOT START/RUN WITH CAB OR

PUMP PANEL CONTROLS ................................ ................................ .............................

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AUXILIARY POWER UNIT (APU) RUNS, BUT NO POWER OUTPUT.............................

4-142

AUXILIARY POWER UNIT DOES NOT SHUT OFF ................................ .........................

4-143

AUXILIARY POWER UNIT PREHEAT CONTROL DOES NOT WORK ...........................

4-143

DRIVERS/PASSENGERS FLOODLIGHT (110V) DOES NOT ILLUMINATE WITH

CAB SWITCH AND AUXILIARY POWER UNIT RUNNING ....................... ......................

4-143

NO POWER AT ANY 11OV OUTLET (EXCEPT LADDER TIP) ................................ .......

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NO POWER AT LADDER TIP OUTLET ................................ ................................ ...........

4-145

110V PORTABLE WORK LIGHT DOES NOT ILLUMINATE WITH CAB SWITCH ..........

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