Komatsu WF550A-3 Trash Compactor Service Repair Shop Manual (50002 and up) - SEBMW01700

This Complete Service Repair Workshop Manual PDF Download for the Komatsu Trash Compactor WF550A-3 (SN: 50002 and up) has easy to read text sections with top quality diagrams, pictures and illustrations. The step by step instructions show you how to fault find or complete any repair or overhaul, correctly and efficiently, saving time and avoiding costly mistakes. All specifications and tolerances are listed. Functions of components and systems are also explained.


APPLICABLE MODELS :

Komatsu WF550A-3 Trash Compactor
Serial Numbers : 50002 and up


TABLE OF CONTENTS :

01 GENERAL
10 STRUCTURE AND FUNCTION
20 TESTING AND ADJUSTING
40 MAINTENANCE STANDARD
90 OTHERS


MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
Product Code : SEBMW01700
Total Pages : 530


This manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This is a must for the Do-It-Yourselfer! Saving Yourself $$$$$$ In Service Repair And Maintenance Costs !!!!

This manual PDF download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having PDF files instead of a hard-printed manual is that you can use the Search feature in Acrobat to find just what your looking for and just print out the exact pages you need or all manual.

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COVER
CONTENTS
01 GENERAL
GENERAL ASSEMBLY DRAWING
SPECIFICATIONS
WEIGHT TABLE
LIST OF LUBRICANT WATER

10 STRUCTURE AND FUNCTION
GENERAL
RADIATOR AND OIL COOLER
DAMPER
TORQUE CONVERTER AND TRANSMISSION PIPING
HYDRAULIC CIRCUIT FOR POWER TRAIN
HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN
TORQUE CONVERTER AND PTO
TRANSMISSION
TRANSMISSION CONTROL VALVE
ECMV (ELECTRONIC CONTROL MODULATION VALVE)
MAIN RELIEF, TORQUE CONVERTER RELIEF VALVE
LUBRICATING RELIEF VALVE
TORQUE CONVERTER OIL FILTER
PILOT FILTER
TRANSFER
DRIVE SHAFT
CENTER SUPPORT
AXLE
DIFFERENTIAL
FINAL DRIVE
AXLE MOUNT
CENTER HINGE PIN
STEERING PIPING
STEERING COLUMN
STEERING VALVE
ORBIT-ROLL VALVE
STOP VALVE
BRAKE PIPING
BRAKE CIRCUIT DIAGRAM
BRAKE VALVE
CHARGE VALVE
ACCUMULATOR (FOR BRAKE)
SLACK ADJUSTER
BRAKE
PARKING BRAKE CONTROL
PARKING BRAKE
PARKING BRAKE SOLENOID VALVE
PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE
HYDRAULIC PIPING
HYDRAULIC CIRCUIT DIAGRAM
WORK EQUIPMENT LEVER LINKAGE
HYDRAULIC TANK
ACCUMULATOR (FOR PPC VALVE)
PPC VALVE
PPC RELIEF VALVE
WORK EQUIPMENT VALVE
WORK EQUIPMENT LINKAGE
BLADE
ROPS CANOPY
AIR CONDITIONER
ELECTRIC CIRCUIT DIAGRAM
MACHINE MONITOR SYSTEM
MAIN MONITOR
MAINTENANCE MONITOR
TRANSMISSION CONTROLLER
SENSORS
ENGINE STARTING CIRCUIT
ENGINE STOP CIRCUIT
PREHEATING CIRCUIT
ELECTRIC TRANSMISSION CONTROL
KICK-DOWN, HOLD SWITCH
KICK-DOWN ELECTRICAL CIRCUIT DIAGRAM
ELECTRIC PARKING BRAKE CONTROL

20 TESTING AND ADJUSTING
STANDARD VALUE TABLE FOR ENGINE
STANDARD VALUE TABLE FOR CHASSIS
STANDARD VALUE TABLE FOR ELECTRICAL RELATED PARTS
TABLE OF TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
SKETCHES OF SPECIAL TOOLS
MEASURING ENGINE SPEED
MEASURING EXHAUST GAS COLOR
ADJUSTING VALVE CLEARANCE
MEASURING COMPRESSION PRESSURE
MEASURING BLOW-BY PRESSURE
MEASURING ENGINE OIL PRESSURE
TESTING AND ADJUSTING FUEL INJECTION TIMING
TESTING AND ADJUSTING ALTERNATOR BELT TENSION
TESTING AND ADJUSTING FAN BELT TENSION
TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR
MEASURING EXHAUST TEMPERATURE
MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)
ADJUSTING SPEED SENSOR
ADJUSTING FUEL CONTROL CABLE
METHOD FOR ADJUSTING ENGINE STOP MOTOR CABLE
TESTING AND ADJUSTING TORQUE CONVERTER, TRANSMISSION OIL PRESSURE
PROCEDURE FOR FLUSHING TORQUE CONVERTER, TRANSMISSION HYDRAULIC CIRCUIT
PROCEDURE FOR MOVING MACHINE WHEN TRANSMISSION VALVE FAILS
TESTING AND ADJUSTING STEERING OIL PRESSURE
TESTING AND ADJUSTING STEERING STOP VALVE
TESTING BRAKE OIL PRESSURE
MEASURING BRAKE DISC WEAR
MEASURING PARKING BRAKE OIL PRESSURE
TESTING WEAR OF PARKING BRAKE DISC
MANUAL RELEASE METHOD FOR PARKING BRAKE
TESTING AND ADJUSTING ACCUMULATOR CHARGE PRESSURE
TESTING AND ADJUSTING PPC OIL PRESSURE
ADJUSTING PPC VALVE LINKAGE
MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE
MEASURING WORK EQUIPMENT SPEED
MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT CYLINDER
BLEEDING AIR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
INITIAL TEACHING METHOD FOR TRANSMISSION CONTROLLER
ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE)
TROUBLESHOOTING
POINTS TO REMEMBER WHEN TROUBLESHOOTING
SEQUENCE OF EVENTS IN TROUBLESHOOTING
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
CHECKS BEFORE TROUBLESHOOTING
CONNECTOR TYPES AND MOUNTING LOCATIONS
CONNECTOR ARRANGEMENT DIAGRAM
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
EXPLANATION OF FUNCTIONS OF ELECTRIC CONTROL MECHANISM
METHOD OF DISPLAYING ACTION CODE AND FAILURE CODE
CHART OF ACTION CODES AND FAILURE CODES, AND RE-ENATION
TRANSMISSION CONTROLLER LED DESPLAY
METHOD OF USING JUDGEMENT TABLE
METHOD OF USING TROUBLESHOOTING CHARTS
METHOD OF USING MATRIX TROUBLESHOOTING TABLES
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
METHOD OF USING TROUBLESHOOTING CHARTS
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)
S-2 ENGINE DOES NOT START
(1)ENGINE DOES NOT TURN
(2)ENGINE TURNS BUT NO EXHAUST SMOKE COMES OUT (FUEL IS NOT BEING INJECTED)
(3)EXHAUST SMOKE COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)
S-4 ENGINE STOPS DURING OPERATIONS
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)
S-6 ENGINE LACKS OUTPUT (OR LACKS POWER)
S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)
S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)
S-9 OIL BECOMES CONTAMINATED QUICKLY
S-10 FUEL CONSUMPTION IS EXCESSIVE
S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN
S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE)
S-13 OIL LEVEL RISES (WATER, FUEL IN OIL)
S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)
S-15 ABNORMAL NOISE IS MADE
S-16 VIBRATION IS EXCESSIVE
TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (T MODE)
JUDGEMENT TABLE FOR TRANSMISSION CONTROLLER SYSTEM RELATED PARTS
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE
ELECTRICAL CIRCUIT DIAGRAM FOR TRANSMISSION CONTROLLER SYSTEM
T-1 FAILURE CODE [10] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN BACKUP LAMP RELAY) IS DISPLAYED
T-2 FAILURE CODE [12] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN F SOLENOID) IS DISPLAYED
T-3 FAILURE CODE [13] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN R SOLENOID) IS DISPLAYED
T-4 FAILURE CODE [14] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 1ST SOLENOID) IS DISPLAYED
T-5 FAILURE CODE [15] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 2ND SOLENOID) IS DISPLAYED
T-6 FAILURE CODE [16] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 3RD SOLENOID) IS DISPLAYED
T-7 FAILURE CODE [17] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 4TH SOLENOID) IS DISPLAYED
T-9 FAILURE CODE [20] (SHORT CIRCUIT, DISCONNECTION IN DIRECTIONAL SWITCH SYSTEM) IS DISPLAYED
T-10 FAILURE CODE [21] (SHORT CIRCUIT, DISCONNECTION IN RANGE SWITCH SYSTEM) IS DISPLAYED
T-11 FAILURE CODE [22] (DISCONNECTION IN TRAVEL SPEED SENSOR SYSTEM) IS DISPLAYED
T-12 FAILURE CODE [23] (SHORT CIRCUIT, DISCONNECTION IN ENGINE SPEED SYSTEM) IS DISPLAYED
T-13 FAILURE CODE [24] (SHORT CIRCUIT, DISCONNECTION IN EEP ROM) IS DISPLAYED
T-14 FAILURE CODE [25] (SHORT CIRCUIT IN TRANSMISSION OIL TEMPERATURE SYSTEM) IN DISPLAYED
T-15 FAILURE CODE [26] (SHORT CIRCUIT IN F ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-16 FAILURE CODE [27] (SHORT CIRCUIT IN R ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-17 FAILURE CODE [28] (SHORT CIRCUIT IN 1ST ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-18 FAILURE CODE [29] (SHORT CIRCUIT IN 2ND ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-19 FAILURE CODE [30] (SHORT CIRCUIT IN 3RD ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-20 FAILURE CODE [31] (SHORT CIRCUIT IN 4TH ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-21 FAILURE CODE [32] (SHORT CIRCUIT IN F OR R ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-22 FAILURE CODE [33] (SHORT CIRCUIT IN 1ST, 2ND, 3RD, OR 4TH ECMV FILL SWITCH SYSTEM) IS DISPLAYED
T-24 KICK-DOWN SWITCH SYSTEM
T-25 TRANSMISSION CUT-OFF SIGNAL SYSTEM
T-26 NEUTRALIZER RELAY SIGNAL SYSTEM
T-27 BUZZER SIGNAL SYSTEM
T-28 NETWORK SYSTEM
T-29 TRANSMISSION CONTROLLER POWER SOURCE SYSTEM
T-30 SHORT CIRCUIT IN TRAVEL SPEED SENSOR SYSTEM
T-31 DISCONNECTION IN TRANSMISSION OIL TEMPERATURE SENSOR SYSTEM
T-32 DISCONNECTION IN F ECMV FILL SWITCH SYSTEM
T-33 DISCONNECTION IN R ECMV FILL SWITCH SYSTEM
T-34 DISCONNECTION IN 1ST ECMV FILL SWITCH SYSTEM
T-35 DISCONNECTION IN 2ND ECMV FILL SWITCH SYSTEM
T-36 DISCONNECTION IN 3RD ECMV FILL SWITCH SYSTEM
T-37 DISCONNECTION IN 4TH ECMV FILL SWITCH SYSTEM
TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)
TROUBLE DATA DISPLAY
ELECTRICAL CIRCUIT DIAGRAM FOR MACHINE MONITOR SYSTEM
ELECTRICAL CIRCUIT DIAGRAM FOR LAMP AND HORN SYSTEM
ELECTRICAL CIRCUIT DIAGRAM FOR TURN SIGNAL AND HAZARD SYSTEM
M-1 MAIN MONITOR DOES NOT WORK
M-2 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED IMMEDIATELY, ALL LAMPS STAY LIGHTED UP
M-3 SPEEDOMETER DISPLAY DOES NOT WORK PROPERLY
M-4 ABNORMALITY IN SHIFT INDICATOR
a) DISPLAYS N EVEN WHEN DIRECTIONAL LEVER IS AT F
b) DISPLAYS N EVEN WHEN DIRECTIONAL LEVER IS AT R
c) DOES NOT DISPLAY N EVEN WHEN DIRECTIONAL LEVER IS AT N, AND DISPLAYS R WHEN DIRECTIONAL LEVER IS AT F
d) DOES NOT DISPLAY N EVEN WHEN DIRECTIONAL LEVER IS AT N, AND DISPLAYS F WHEN DIRECTIONAL LEVER IS AT R
e) DOES NOT DISPLAY 1ST-4TH
M-5 HIGH BEAM DOES NOT LIGHT UP
M-6 TURN SIGNAL DISPLAY DOES NOT LIGHT UP
a) L.H. TURN SIGNAL DISPLAY DOES NOT LIGHT UP
b) R.H. TURN SIGNAL DISPLAY DOES NOT LIGHT UP
M-7 ABNORMALITY IN PARKING DISPLAY
a) PARKING LAMP DISPLAY DOES NOT LIGHT UP
b) PARKING LAMP DISPLAY STAYS LIGHTED UP
M-8 ABNORMALITY IN PREHEATING SYSTEM (QHS)
a) DOES NOT CARRY OUT PREHEATING
b) ALWAYS CARRIES OUT PREHEATING FOR 45 SECONDS
c) PREHEATING STAYS ON
d) PREHEATING TIME BECOMES SHORTER, OR THERE IS VARIATION
M-9 NIGHT LIGHTING DOES NOT LIGHT UP
M-10 ABNORMALITY IN FRONT WORKING LAMP
a) NEITHER MONITOR DISPLAY NOR FRONT WORKING LAMP LIGHT UP
b) WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP
c) MONITOR DISPLAY LIGHTS UP BUT WORKING LAMP DOES NOT LIGHT UP
M-11 ABNORMALITY IN REAR WORKING LAMP
a) NEITHER MONITOR DISPLAY NOR REAR WORKING LAMP LIGHT UP
b) WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP
c) MONITOR DISPLAY LIGHTS UP BUT WORKING LAMP DOES NOT LIGHT UP
M-12 ABNORMALITY IN TRANSMISSION CUT-OFF
a) WHEN MONITOR SWITCH (TRANSMISSION CUT-OFF SWITCH) IS PRESSED, CUT-OFF FUNCTION IS NOT SWITCHED AND DISPLAY DOES NOT CHANGE
b) WHEN MONITOR SWITCH (TRANSMISSION CUT-OFF SWITCH) IS OFF, MONITOR DISPLAY GOES OUT BUT CUT-OFF FUNCTION IS ACTUATED WHEN PEDAL IS DEPRESSED
c) WHEN MONITOR DISPLAY IS TURNED OFF (TRANSMISSION CUT-OFF SWITCH TURNED OFF), CUT-OFF FUNCTION IS ALWAYS ACTUATED
d) CUT-OFF FUNCTION IS ALWAYS ACTUATED REGARDLESS OF MONITOR DISPLAY (TRANSMISSION CUT-OFF SWITCH ON OR OFF)
e) MONITOR DISPLAY LIGHTS UP (TRANSMISSION CUT-OFF SWITCH TURNED ON), BUT CUT-OFF FUNCTION IS NOT ACTUATED
M-13 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING
a) WHEN PARKING BRAKE IS APPLIED, BUZZER SOUNDS (INTERMITTENTLY) AND CAUTION LAMP FLASHES EVEN WHEN DIRECTIONAL LEVER IS AT N
b) WHEN PARKING BRAKE IS APPLIED, BUZZER DOES NOT SOUND AND CAUTION LAMP DOES NOT LIGHT UP EVEN WHEN DIRECTIONAL LEVER IS AT POSITION OTHER THAN N
M-14 WHEN PARKING BRAKE DRAGGING WARNING IS GIVEN, BUZZER AND CAUTION LAMP ARE ACTUATED CONTINUOUSLY, OR THEY ARE NOT ACTUATED
a) ACTUATED CONTINUOUSLY
b) NOT ACTUATED
M-15 ABNORMALITY IN BUZZER
a) BUZZER DOES NOT SOUND WHEN STARTING SWITCH IS AT ON (FOR 3 SECONDS) (DURING SELF-CHECK)
b) BUZZER ALWAYS SOUNDS
M-16 CONDITION OF MONITOR SWITCHES IS NOT STORED IN MEMORY
M-17 ABNORMALITY IN FAILURE DISPLAY MODE
a) DOES NOT ENTER FAILURE DISPLAY MODE
b) COUNT FOR TIME ELAPSED SINCE FAILURE IN FAILURE DISPLAY MODE DOES NOT ADVANCE
M-18 BUZZER IS NOT MADE TO SOUND BY TRANSMISSION CONTROLLER
M-23 FAILURE CODE IS NOT SENT TO MAIN MONITOR (ABNORMALITY IN NETWORK)
TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)
ELECTRICAL CIRCUIT DIAGRAM FOR MACHINE MONITOR SYSTEM
K-1 WHEN STARTING SWITCH IS TURNED ON, ALL LAMPS ON MAINTENANCE MONITOR DO NOT LIGHT UP FOR 3 SECONDS, MAINTENANCE MONITOR DOES NOT WORK
a) NO LAMPS ON MAINTENANCE MONITOR LIGHT UP
b) SOME LAMPS DO NOT LIGHT UP
K-2 WHEN STARTING SWITCH IS TURNED ON, ALL LAMPS ON MAINTENANCE MONITOR LIGHT UP BUT DO NOT GO OUT (EVEN AFTER 3 SECONDS)
K-3 WHEN ENGINE IS STARTED IMMEDIATELY AFTER STARTING SWITCH IS TURNED ON (WITHIN 3 SECONDS), NO LAMPS ON MAINTENANCE MONITOR GO OUT
K-4 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CHECK ITEMS FLASH
a) ENGINE OIL LEVEL DISPLAY FLASHES
b) ENGINE WATER LEVER DISPLAY FLASHES
K-5 WHEN STARTING SWITCH IS TURNED ON (ENGINE STARTED), CAUTION ITEMS FLASH
a) ENGINE OIL PRESSURE DISPLAY FLASHES
b) BATTERY CHARGE LEVEL DISPLAY FLASHES
c) BRAKE OIL PRESSURE DISPLAY FLASHES
d) AIR CLEANER DISPLAY FLASHES
K-6 CAUTION ITEMS ARE FLASHING BUT CAUTION BUZZER DOES NOT SOUND
K-7 THERE IS NO ABNORMALITY IN MONITOR DISPLAY BUT CAUTION BUZZER SOUNDS
K-8 CAUTION ITEMS ARE FLASHING BUT WARNING LAMP (CHECK LAMP, CAUTION LAMP) DOES NOT FLASH
a) CHECK LAMP
b) CAUTION LAMP
K-9 THERE IS NO ABNORMALITY IN MAINTENANCE MONITOR DISPLAY BUT WARNING LAMP (CHECK LAMP, CAUTION LAMP) LIGHTS UP
a) CHECK LAMP
b) CAUTION LAMP
K-10 NIGHT LIGHTING DOES NOT LIGHT UP WHEN LAMP SWITCH IS TURNED ON (ONLY LIGHTING OF MAINTENANCE MONITOR DOES NOT LIGHT UP)
K-11 NIGHT LIGHTING LIGHTS UP EVEN WHEN LAMP SWITCH IS OFF, NIGHT LIGHTING STAYS LIGHTED UP
K-12 SERVICE METER DOES NOT WORK
K-13 SERVICE METER IS RUNNING EVEN WHEN ENGINE IS STOPPED
K-14 ABNORMALITY IN GAUGE ITEMS
a) ABNORMALITY IN FUEL GAUGE
b) ABNORMALITY IN ENGINE WATER TEMPERATURE GAUGE
c) ABNORMALITY IN TORQUE CONVERTER OIL TEMPERATURE GAUGE
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
ELECTRICAL CIRCUIT DIAGRAM FOR POWER SUPPLY, ENGINE STARTING・STOP AND PREHEATING SYSTEM
ELECTRICAL CIRCUIT DIAGRAM FOR PARKING BRAKE SYSTEM
ELECTRICAL CIRCUIT DIAGRAM FOR LAMP AND HORN SYSTEM
ELECTRICAL CIRCUIT DIAGRAM FOR TRANSMISSION CONTROLLER SYSTEM
E-1 ENGINE DOES NOT START
a) STARTING MOTOR DOES NOT TURN
b) STARTING MOTOR TURNS
E-2 ENGINE DOES NOT STOP
E-3 ENGINE STOPS WHEN MACHINE IS TRAVELING
E-4 ABNORMALITY IN PREHEATING SYSTEM (QHS)
a) DOES NOT CARRY OUT PREHEATING
b) ALWAYS CARRIES OUT PREHEATING FOR 45 SECONDS
c) PREHEATING STAYS ON
d) PREHEATING TIME BECOMES SHORTER, OR THERE IS VARIATION
E-5 PARKING BRAKE DOES NOT HAVE EFFECT
a) PARKING BRAKE HAS NO EFFECT WHEN PARKING BRAKE SWITCH IS TURNED ON (ACTUATED)
b) PARKING BRAKE HAS NO EFFECT WHEN BRAKE PRESSURE DROPS (DOES NOT WORK AS EMERGENCY BRAKE)
E-6 PARKING BRAKE IS APPLIED WHEN MACHINE IS TRAVELING
E-7 PARKING BRAKE IS RELEASED WHEN STARTING SWITCH IS TURNED ON
E-8 TRANSMISSION DOES NOT CHANGE TO NEUTRAL WHEN PARKING BRAKE IS APPLIED (BUT PARKING BRAKE WORKS NORMALLY)
E-9 KICK-DOWN SWITCH DOES NOT WORK
a) KICK-DOWN SWITCH DOES NOT WORK (SHIFT WORKS CORRECTLY DURING NORMAL GEAR SHIFT OPERATIONS)
b) KICK-DOWN IS NOT CANCELED
E-12 ABNORMALITY IN LIGHTING UP OF FRONT WORKING LAMP
E-13 ABNORMALITY IN LIGHTING UP OF REAR WORKING LAMP
E-14 ABNORMALITY IN TRANSMISSION CUT-OFF
E-15 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING
E-16 ABNORMALITY IN BUZZER
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)
H-1 MACHINE DOES NOT START
H-2 TRAVEL SPEED IS SLOW, THRUSTING POWER IS WEAK, LACKS POWER ON SLOPES, DOES NOT SHIFT GEAR
H-3 EXCESSIVE SHOCK WHEN STARTING MACHINE OR SHIFTING GEAR
H-4 EXCESSIVE TIME LAG WHEN STARTING MACHINE OR SHIFTING GEAR
H-5 TORQUE CONVERTER OIL TEMPERATURE IS HIGH
H-6 STEERING DOES NOT TURN
H-8 TURNING, RESPONSE OF STEERING IS POOR
H-10 STEERING IS HEAVY
H-12 STEERING WHEEL SHAKES OR JERKS
H-14 TURNING RADIUS IS DIFFERENT BETWEEN LEFT AND RIGHT AT MAXIMUM STEERING
H-15 WHEEL BRAKES DO NOT WORK OR BRAKING EFFECT IS POOR
H-16 WHEEL BRAKES ARE NOT RELEASED OR BRAKES DRAG
H-17 PARKING BRAKE DOES NOT WORK OR BRAKING EFFECT IS POOR
H-18 PARKING BRAKE IS NOT RELEASED OR BRAKE DRAGS (INCLUDING EMERGENCY RELEASE SYSTEM)
H-21 BLADE DOES NOT RISE
H-22 BLADE MOVES SLOWLY OR DOES NOT HAVE SUFFICIENT LIFTING POWER
H-23 BLADE BECOMES SLOW AT CERTAIN HEIGHT WHEN RAISING
H-24 LIFT CYLINDER CANNOT HOLD DOWN BLADE
H-25 BLADE HAS LARGE AMOUNT OF HYDRAULIC DRIFT
H-26 BLADE FLUCTUATES WHILE WORKING
H-27 BLADE DROPS MOMENTARILY WHEN LEVER IS OPERATED FROM HOLD TO RAISE
H-28 BLADE DOES NOT TILT
H-29 BLADE MOVES SLOWLY OR HAS INSUFFICIENT TILT POWER
H-30 BLADE CONTROL LEVER DOES NOT MOVE SMOOTHLY

40 MAINTENANCE STANDARD
ENGINE MOUNT
TRANSMISSION MOUNT
DAMPER
TORQUE CONVERTER CHARGING PUMP
TORQUE CONVERTER, PTO
TRANSMISSION
TRANSFER
MAIN RELIEF,TORQUE CONVERTER RELIEF VALVE
LUBRICATION RELIEF VALVE
DRIVE SHAFT
CENTER SUPPORT
DIFFERENTIAL
FINAL DRIVE
AXLE MOUNT
CENTER HINGE PIN
STEERING COLUMN
STEERING PUMP, WORK EQUIPMENT PUMP
STEERING VALVE
STEERING CYLINDER MOUNT
BRAKE VALVE
SLACK ADJUSTER
BRAKE
PARKING BRAKE
SWITCH, PPC PUMP
PPC VALVE
WORK EQUIPMENT PUMP
HYDRAULIC CYLINDERS
ROPS CAB

90 OTHERS
TRANSMISSION
ELECTRIC PARKING BRAKE CONTROL
CONNECTOR ARRANGEMENT DIAGRAM(1/2)
CONNECTOR ARRANGEMENT DIAGRAM(2/2)

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