Tigercat 720D FELLER BUNCHER Service Manual – PDF DOWNLOAD

Description

Tigercat 720D FELLER BUNCHER Service Manual – PDF DOWNLOAD

DESCRIPTION:

Tigercat 720D FELLER BUNCHER Service Manual – PDF DOWNLOAD

INTRODUCTION :

• An Operator’s manual, Service manual and a Parts catalog are made available by Tigercat to assist the
  dealer, customer and operator in becoming familiar with the features of the 720D Feller Buncher.
• The operator’s manual will assist the operator with the techniques of proper and safe operation of the
  720D Feller Buncher. There is also important information regarding the safe operation of the saw head.
• The service manual contains safety and servicing procedures and a preventive maintenance schedule to
  ensure optimum machine performance.
• Section 1 in both the operator’s manual and the service manual contains safety information that must be
  followed. As well, throughout the rest of the manuals, WARNING and CAUTION notices are displayed
  where necessary, drawing attention to possible hazards when performing certain procedures.
• Only trained personnel should be allowed to operate or work on the machine.
• The information contained in this manual is current at time of printing. Improvements to the machine are
  on going and may not be covered, therefore in these cases contact your Tigercat dealer for the
  appropriate information.

TABLE OF CONTENTS:

Tigercat 720D FELLER BUNCHER Service Manual – PDF DOWNLOAD

720D SERVICE – ISSUE 1.1………………………………… 1
INTRODUCTION……………………………………….. 3
S.A.E. STANDARDS……………………………………. 4
NON-APPROVED FIELD PRODUCT CHANGES……………………. 5
SECTION 1 – SAFETY …………………………………….. 7
ARTICULATION LOCK BAR ………………………………. 18
BOOM LIFT LOCK …………………………………….. 18
ENGINE ACCESS PANELS ……………………………….. 16
FELLING TREES ……………………………………… 13
FIRE PREVENTION ……………………………………. 20
FIRE PREVENTION GUIDELINES ………………………. 20
WHAT ELSE TO DO BEFORE YOU EXPERIENCE A FIRE ………. 21
WHAT TO DO AFTER A FIRE …………………………. 22
WHAT TO DO IN CASE OF A MACHINE FIRE ……………… 21
PARKING THE MACHINE ………………………………… 14
SAFETY INTERLOCK SWITCHES ON CAB DOORS ……………….. 15
SAFETY PRECAUTIONS, GENERAL …………………………. 9
SAFETY PRECAUTIONS, OPERATING ……………………….. 12
SAFETY PRECAUTIONS, SERVICING ……………………….. 16
SAFETY SYMBOLS …………………………………….. 8
APPENDIX – USING HIGH SPEED DISC SAWS SAFELY………………. 23
Comments and instructions……………………………. 23
Direction of throw ……………………………… 29
High angle wrist rotation ability ………………… 30
Recognizing the Dangers …………………………. 29
Throwing long wood pieces ……………………….. 32
Dangers …………………………………………… 25
forward …………………………………………… 24
Be aware of the hazards …………………………. 24
Other instructions ……………………………… 25
Safe practices …………………………………. 25
Several types of heads involved ………………….. 24
Stored energy ………………………………….. 24
HIGH ANGLE WRIST ROTATION CAPABILITY …………………. 31
Saw Head Don’ts ……………………………………. 37
Type of Housing makes a Difference …………………… 26
SECTION 3 – LUBRICATION & MAINTENANCE…………………….. 39
AIR CLEANER MAINTENANCE …………………………….. 52
AIR CONDITIONING SYSTEM, CHECKING ……………………. 56
BELT, ENGINE SERPENTINE, REPLACING …………………… 61
CENTER JOINT……………………………………….. 57
LUBRICATION ……………………………………. 57
MAINTENANCE ……………………………………. 57
DRIVE SHAFT SPLINE LUBRICATION, MIDDLE AND REAR ……….. 62
ENGINE SERPENTINE BELT, REPLACING ……………………. 61
FILTERS……………………………………………. 39
ENGINE AIR CLEANER ……………………………… 52
FUEL FILTER/WATER SEPARATOR ……………………… 48
FUEL TANK STRAINER ……………………………… 49
HYDRAULIC OIL RETURN FILTERS …………………….. 50
HYDROSTATIC CHARGE PUMP PRESSURE FILTERS …………. 50
HYDRAULIC OILS …………………………………….. 44
NEW MACHINE MAINTENANCE……………………………… 39
FIRST 50-100 HOUR INSPECTION AND SERVICE REPORT ……. 40
INITIAL PRE-DELIVERY INSPECTION ………………….. 40
TIGHTENING POINTS ………………………………. 40
OIL LOST FROM LEAKAGE ………………………………. 40
PRESSURE SETTINGS ………………………………….. 66
PRESSURIZED WATER SYSTEMMAINTENANCE ………………….. 54
REPLACING THE ENGINE SERPENTINE BELT …………………. 61
SCHEDULED MAINTENANCE……………………………….. 39
GENERAL ……………………………………….. 41
8 HOURS ……………………………………….. 42
125 HOURS ……………………………………… 43
250 HOURS ……………………………………… 43
500 HOURS ……………………………………… 44
1000 HOURS …………………………………….. 44
2000 HOURS …………………………………….. 44
SEASONAL ………………………………………. 44
STARTUP PROCEDURE AFTER MAINTENANCE ………………….. 58
TORQUE CHART ………………………………………. 64
TORQUE CHART, GENERAL ………………………………. 65
TRANSMISSION ………………………………………. 57
CHECK OIL LEVEL ………………………………… 57
WHEELS, INSTALLING …………………………………. 40
SECTION 5 – PILOT SYSTEM………………………………… 67
ACCUMULATOR CHARGE VALVE ……………………………. 68
OPERATING DESCRIPTION …………………………… 68
REPLACE FILTER …………………………………. 74
SCHEMATIC ……………………………………… 68
ACCUMULATORS ………………………………………. 69
BRAKE ACCUMULATOR ………………………………. 69
CHARGING ………………………………………. 75
CHECK PRE-CHARGE PRESSURE ……………………….. 75
PILOT ACCUMULATOR ………………………………. 69
TESTING DEVICE …………………………………. 75
COMPONENTS ………………………………………… 68
HYDRAULIC OIL HEATING PROCEDURE ……………………… 76
PILOT CIRCUIT DESCRIPTION …………………………… 72
PILOT CIRCUIT DIAGRAM ………………………………. 73
PILOT MANIFOLD …………………………………….. 70
ASSEMBLY DIAGRAM ……………………………….. 71
OPERATING DESCRIPTION …………………………… 70
PILOT SHUT OFF …………………………………. 70
PILOT PRESSURE SETTINGS …………………………….. 76
RELEASE PILOT SYSTEM PRESSURE ……………………….. 74
SECTION 6 – ELECTRICAL, GAUGES & ALARMS…………………… 79
ELECTRICAL SCHEMATIC DIAGRAM ………………………… 80
GAUGES AND ALARMS ………………………………….. 86
INSTRUMENT PANEL WIRING DIAGRAM ……………………… 83
RELAYS AND FUSES …………………………………… 84
SENSOR, SENDER LOCATIONS ……………………………. 87
START AND FUEL SOLENOIDS ……………………………. 85
TESTING GAUGES …………………………………….. 86
WIRE COLOUR CODE CHART ……………………………… 84
SECTION 7 – ENGINE……………………………………… 89
CIRCUIT DESCRIPTION…………………………………. 89
CUMMINS ENGINE …………………………………. 90
COOLING SYSTEM……………………………………… 89
COOLANT FLOW DIAGRAM ……………………………. 94
COOLANT FLOW DURING OPERATION ……………………. 94
FILLING THE SYSTEM WITH COOLANT ………………….. 94
PARKING BRAKE ……………………………………… 90
PRECLEANER…………………………………………. 95
operation ……………………………………… 95
SERVICE ……………………………………….. 95
RELAYS, DIODES AND FUSES PANEL ………………………. 91
START AND FUEL SOLENOIDS ……………………………. 90
START CIRCUIT DIAGRAMS – CUMMINS ‘B’ ENGINE……………. 89
AT REST ……………………………………….. 92
RUN AND DRIVE ………………………………….. 93
RUN, NO DRIVE ………………………………….. 93
START …………………………………………. 92
starting system DESCRIPTION …………………………. 90
TACHOMETER SET-UP ………………………………….. 94
SECTION 8 – DRIVE………………………………………. 97
AXLES ……………………………………………..118
Axle Lubrication ………………………………..120
BRAKE BLEEDING ………………………………….119
BRAKE LINING INSPECTION (REAR AXLE ONLY) …………..119
filling axles, alternative method …………………121
filling the axles ……………………………….120
REAR AXLE OSCILLATION SHIM ……………………….122
SERVICE BRAKES (REAR AXLE ONLY) …………………..119
CIRCUIT DIAGRAM, DRIVE ………………………………109
CREEP VALVE ………………………………………..105
DRIVE MOTOR ………………………………………..102
DRIVE Motor Minimum displacement Adjustment ……………113
DRIVE pedal pilot VALVE ……………………………..104
DRIVE PREVENT VALVE …………………………………105
DRIVE PUMP AND MOTOR PRESSURE SETTINGS AND ADJUST ……..110
DRIVE PUMP, SUNDSTRAND ……………………………… 98
DRIVE SHAFT, FRONT, INSTALLATION ……………………..116
HYDROSTATIC DRIVE SYSTEM ……………………………. 98
Minimum displacement Adjustment, DRIVE MOTOR …………..113
PRESSURE SETTINGS AND ADJUSTMENTS…………………….. 97
ADJUSTING PUMP POR. VALVE ………………………..112
DRIVE motor POR. valve …………………………..112
Minimum displacement Adjustment, DRIVE MOTOR ……….113
TEST DRIVE …………………………………………106
Creep Function ………………………………….108
Differential Lock functions ………………………108
Drive Motor pressure override (POR.) ……………..106
Engine Horsepower Audit ………………………….106
PARKING BRAKE ADJUSTMENT, CHECKING FOR …………….108
SAW MOTOR BEGIN OF DISPLACEMENT REGULATION …………108
TOP SPEED CONTROL ……………………………….106
TRANSMISSION ……………………………………….114
WHEEL INSTALLATION ………………………………….121
SECTION 9 – BRAKES AND DIFFERENTIAL LOCKS………………….125
AUXILIARY SET-UP CALIPER …………………………….128
BRAKES……………………………………………..125
BRAKE ACCUMULATOR ……………………………….126
CIRCUIT DESCRIPTION ……………………………..126
CIRCUIT DIAGRAM …………………………………127
FOOT CONTROL VALVE ………………………………126
DIFFERENTIAL LOCKS…………………………………..125
CIRCUIT DESCRIPTION ……………………………..126
CIRCUIT DIAGRAM …………………………………127
PARKING BRAKE ………………………………………128
AUXILIARY SET-UP CALIPER …………………………128
BRAKE CALIPER ASSEMBLY …………………………..130
CALIPER FLOAT ADJUSTMENT …………………………131
CHECKING FOR proper ADJUSTMENT ……………………129
LINING REPLACEMENT ………………………………131
Proximity sensor ………………………………..129
SECTION 10 – OIL COOLER/RADIATOR AND CROSS-FLOW FAN…………133
CHECK MAXIMUM FAN SPEED FORWARD AND REVERSE ……………144
CIRCUIT DIAGRAM, CROSS-FLOW FAN ………………………143
CIRCUIT DIAGRAM, OIL COOLER ………………………….137
COOLING SYSTEM, ENGINE See SECTION 7 IN THIS MANUAL……..133
CROSS-FLOW FAN CIRCUIT DIAGRAM ……………………….143
CROSS-FLOW FAN WITH ELECTRONIC FAN DRIVE CONTROL ……….138
ELECTRONIC FAN DRIVE CONTROL (FDC)…………………….133
CHECK FOR TEMPERATURE SENSOR FAILURE ………………147
CHECK MINIMUM FAN SPEED WITH A/C “ON” AND NO A/C D ….147
CHECK VARIABLE FAN SPEED WHEN CONTROLLED BY ENGINE ….148
CHECK VARIABLE FAN SPEED WHEN CONTROLLED BY HYDRAU ….149
ENGINE COOLING SYSTEM See SECTION 7 IN THIS MANUAL………133
FAN COOLING CIRCUIT DESCRIPTION ………………………142
FAN DRIVE MOTOR …………………………………….141
fan drive motor INSTALLATION …………………………141
FAN DRIVE PUMP ……………………………………..138
FAN DRIVE PUMP PRESSURE, CHECK ……………………….146
FAN PUMP forward and reverse MAX. DISPLACEMENT SET ……..144
FAN SPEED, MAX. FORWARD AND REVERSE …………………..144
FDC CONTROL ………………………………………..140
HYDRAULIC OIL TANK ………………………………….136
OIL COOLER …………………………………………134
OIL COOLER and RADIATOR INSTALLATION ………………….135
OIL COOLER CIRCUIT DESCRIPTION ……………………….134
OIL COOLER CIRCUIT DIAGRAM …………………………..137
TROUBLE-SHOOTING GUIDE……………………………….133
FDC. OPERATION ………………………………….150
OVERHEATING PROBLEMS …………………………….150
VACUUM PUMP, HYDRAULIC OIL TANK ………………………136
SECTION 11- STEERING AND CENTER JOINT……………………..151
CENTER JOINT………………………………………..160
ADJUSTMENT ……………………………………..160
CHECKING ……………………………………….160
DIAGRAM ………………………………………..161
GREASE SEALS ……………………………………161
LUBRICATION …………………………………….160
MAINTENANCE …………………………………….160
CIRCUIT DESCRIPTION …………………………………156
CIRCUIT DIAGRAM …………………………………….157
JOYSTICK CONTROL VALVE ………………………………155
PRESSURE SETTINGS …………………………………..158
SAFETY …………………………………………….158
STEER RELIEF VALVE ………………………………….154
STEER VALVE ………………………………………..154
CROSS SECTION …………………………………..154
DESCRIPTION …………………………………….154
OPERATING DESCRIPTION ……………………………154
STEER/BOOM PUMP …………………………………….152
SECTION 12 – LIFT BOOM…………………………………..163
boom lift lock ……………………………………..168
BOOM VALVE………………………………………….163
ASSEMBLY PROCEDURE ………………………………170
CROSS SECTION OF SPOOL SECTION ……………………165
OPERATING DESCRIPTION ……………………………164
RELIEF VALVES See SECTION 18 – CLAMPS WITH SAW………163
CIRCUIT DESCRIPTION …………………………………166
CIRCUIT DIAGRAM …………………………………….167
JOYSTICK CONTROL VALVE ………………………………164
OPERATING DESCRIPTION ……………………………164
PRESSURE SETTINGS …………………………………..168
PUMP, DESCRIPTION……………………………………163
BOOM/STEER PUMP See SECTION 11 – STEERING…………..163
safety …………………………………………….168
SECTION 13 – TILT……………………………………….171
boom lift lock ……………………………………..174
BOOM VALVE DIAGRAM ………………………………….172
CIRCUIT DESCRIPTION …………………………………172
CIRCUIT DIAGRAM …………………………………….173
CONTROL VALVES ……………………………………..172
PRESSURE SETTINGS …………………………………..174
SAFETY …………………………………………….174
SECTION 17 – SAW DRIVE…………………………………..175
CIRCUIT DESCRIPTION …………………………………178
CIRCUIT DIAGRAM …………………………………….179
PRESSURE SETTINGS …………………………………..180
safety …………………………………………….180
SAW MOTOR See SAW MANUFACTURER’S MANUAL………………..175
SAW PUMP……………………………………………175
POR. VALVE ……………………………………..181
TEST PORT ………………………………………181
SAW VALVES………………………………………….175
PILOT OPERATED SOLENOID VALVE …………………….176
SAW SECTION OF BOOM VALVE ………………………..177
SECTION 18 – CLAMPS WITH SAW……………………………..183
boom lift lock ……………………………………..188
BOOM VALVE …………………………………………184
OPERATING DESCRIPTION ……………………………185
SPOOL SECTION DIAGRAM ……………………………185
CIRCUIT DESCRIPTION …………………………………186
CIRCUIT DIAGRAM …………………………………….187
CONTROL VALVES ……………………………………..184
PILOT LINE PRESSURES See SECTION 5 – PILOT SYSTEM……….183
PRESSURE SETTINGS …………………………………..188
RELIEF VALVES……………………………………….190
ADJUSTING PROCEDURE ……………………………..191
OPERATION ………………………………………190
SAFETY …………………………………………….188
SPOOL SECTION DIAGRAM ……………………………….185

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TIGERCAT 720D FELLER BUNCHER SERVICE MANUAL – PDF DOWNLOAD:

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• This is the same manual used by the DEALERSHIPS to SERVICE your vehicle.
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