TM 5-4210-233-14&P-1 SYMPTOM PAGE NO. HYDRAULIC SYSTEM - CONTINUED LADDER WILL NOT LOWER .......................................................................................... 4-62 SWING OPERATION SLOW IN ONLY ONE DIRECTION  ............................................... 4-63 SWING OPERATION ERRATIC IN ONE DIRECTION ONLY  .......................................... 4-63 NO SWING OPERATION IN EITHER DIRECTION   ......................................................... 4-63 SWING OPERATION ERRATIC IN EITHER DIRECTION   ............................................... 4-64 SWING OPERATION SLOW IN EITHER DIRECTION ..................................................... 4-64 ERRATIC OPERATION IN ALL HYDRAULIC CIRCUITS ................................................. 4-65 OUTRIGGER JACK CYLINDER EXTENDS WHILE MACHINE IS ROADING .................. 4-65 SLOW OR ERRATIC OPERATION OF OUTRIGGER EXTENSION CYLINDERS  ........... 4-66 OUTRIGGER EXTENDS WHILE MACHINE IS ROADING  .............................................. 4-66 OUTRIGGER JACK CYLINDER SLOW OR ERRATIC  .................................................... 4-67 OUTRIGGER JACK CYLINDER RETRACTS UNDER LOAD  .......................................... 4-67 PUMP NOISE DUE TO CAVITATION   ............................................................................. 4-67 FOAMING HYDRAULIC OIL  ............................................................................................ 4-68 CLOUDY HYDRAULIC OIL .............................................................................................. 4-68 OVERHEATING HYDRAULIC OIL ................................................................................... 4-68 EXCESSIVE PRESSURE BUILD-UP ............................................................................... 4-68 PUMP NOISE (ACCOMPANIED BY OIL FOAMING IN RESERVOIR)  ............................. 4-69 HYDRAULIC RESERVOIR OVERFLOWING.................................................................... 4-69 ELECTRICAL SYSTEM - IGNITION CIRCUITS "BATTERY ON" LIGHT DOES NOT ILLUMINATE ............................................................ 4-69 IGNITION "ON" LIGHT DOES NOT ILLUMINATE   ........................................................... 4-70 WARNING BUZZER DOES NOT SOUND WHEN IGNITION IS FIRST TURNED ON   ..... 4-70 ENGINE/TRANSMISSION BUZZER REMAINS ON .......................................................... 4-71 ENGINE/TRANSMISSION ALARM BUZZER DOES NOT SOUND DURING IGNITION TEST 4-71 DDEC ALARM (BEEPER) DOES NOT SOUND DURING IGNITION TEST  ..................... 4-72 STOP ENGINE LIGHT FAILS TO TURN OFF AFTER TEST  ........................................... 4-72 CHECK ENGINE LIGHT FAILS TO TURN OFF AFTER TEST  ........................................ 4-73 STOP ENGINE LIGHT DOES NOT ILLUMINATE............................................................. 4-73 CHECK ENGINE LIGHT DOES NOT ILLUMINATE  ......................................................... 4-74 ENGINE STARTER MOTOR DOES NOT OPERATE  ...................................................... 4-74 ETHER STARTING AID DOES NOT OPERATE  ............................................................. 4-75 ALL CAB ELECTRIC INSTRUMENTS DO NOT OPERATE ............................................. 4-75 NEUTRAL SAFETY CIRCUIT DOES NOT PROVIDE +12V SIGNAL TO CRY030 ........... 4-76 +12 VOLTS IS NOT PRESENT AT BATTERY ACCESSORY BUSS  ............................... 4-76 +12 VOLTS IS NOT PRESENT AT IGNITION ACCESSORY BUSS ................................ 4-76 ELECTRICAL SYSTEM - CAB CONTROLS AND INDICATORS HEADLIGHTS (HIGH OR LOW BEAM) DO NOT ILLUMINATE  ....................................... 4-77 FRONT ID LIGHTS, ID BULLETS (FRONT AND REAR), TAIL LIGHTS, SIDE ID LAMPS DO NOT ILLUMINATE ........................................................................... 4-77 STEP LIGHTS DO NOT ILLUMINATE .............................................................................. 4-78 CLEARANCE LIGHTS DO NOT ILLUMINATE ................................................................. 4-79 TURN SIGNALS DO NOT FUNCTION PROPERLY  ........................................................ 4-79 BACKUP LIGHTS DO NOT ILLUMINATE, OR BACKUP ALARM DOES NOT SOUND  ... 4-79 BRAKE LIGHTS DO NOT ILLUMINATE WITH FOOT PEDAL.......................................... 4-80 MECHANICAL SIREN DOES NOT OPERATE  ................................................................ 4-80 MECHANICAL SIREN BRAKE DOES NOT OPERATE  ................................................... 4-81 4-21