Tigercat 726D FELLER BUNCHER SERVICE MANUAL – PDF DOWNLOAD

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Tigercat 726D FELLER BUNCHER SERVICE MANUAL – PDF DOWNLOAD

DESCRIPTION:

Tigercat 726D 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 726D Feller Buncher serial number 7262001 and up. The operator’s manual will assist the operator with the techniques of proper and safe operation of the 726D 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.
• The phrase “and up” appearing in this manual after the serial number implies that the related information is current for any machine serial number HIGHER than the serial number preceding the “and up”. Tigercat reserves the right to make changes to the machine after this manual release date that may not immediately appear in this manual.

TABLE OF CONTENTS:

Tigercat 726D FELLER BUNCHER SERVICE MANUAL – PDF DOWNLOAD

726D SERVICE ISSUE 1.0……………………………….. 1
INTRODUCTION…………………………………….. 3
S.A.E. STANDARDS…………………………………. 4
NON-APPROVED FIELD PRODUCT CHANGES…………………. 5
SECTION 1 – SAFETY…………………………………… 7
BOOM LIFT LOCK ………………………………….. 18
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
Signal Words ……………………………………. 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
ELECTRICAL SCHEMATICS…………………………….. 39
SERIAL NUMBER 7262011 AND UP ………………….. 71
EMERGENCY EXITS, CHECK MONTHLY ……………………. 41
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 ………. 51
SERVICING GUIDELINES FOR OIL FILTERS …………… 51
FIRE PREVENTION …………………………………. 41
HYDRAULIC OILS ………………………………….. 45
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
PRESSURIZED WATER SYSTEM MAINTENANCE ………………. 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 ……………………………………. 45
SERVICE AND LUBRICATION POINTS CHART ………………. 47
SPEED CONTROL LEVER ADJUSTMENT ……………………. 64
STARTUP PROCEDURE AFTER MAINTENANCE ……………….. 58
TORQUE CHART ……………………………………. 65
TORQUE, FLUID CONNECTIONS ………………………… 74
TORQUE SPECIFICATIONS – GENERAL …………………… 66
TRANSMISSION ……………………………………. 57
CHECK OIL LEVEL ……………………………… 57
WHEELS, INSTALLING ………………………………. 40
SECTION 5 – PILOT SYSTEM……………………………… 77
ACCUMULATOR CHARGE VALVE …………………………. 78
OPERATING DESCRIPTION ………………………… 78
REPLACE FILTER ………………………………. 84
SCHEMATIC …………………………………… 78
ACCUMULATORS ……………………………………. 79
BRAKE ACCUMULATOR ……………………………. 79
CHARGING ……………………………………. 85
CHECK PRE-CHARGE PRESSURE …………………….. 85
PILOT ACCUMULATOR ……………………………. 79
TESTING DEVICE ………………………………. 85
COMPONENTS ……………………………………… 78
HYDRAULIC OIL HEATING PROCEDURE …………………… 87
PILOT CIRCUIT DESCRIPTION ………………………… 82
PILOT CIRCUIT SCHEMATIC ………………………….. 83
PILOT MANIFOLD ………………………………….. 80
ASSEMBLY DIAGRAM …………………………….. 81
OPERATING DESCRIPTION ………………………… 80
PILOT SHUT OFF ………………………………. 80
PILOT PRESSURE SETTINGS ………………………….. 86
RELEASE PILOT SYSTEM PRESSURE …………………….. 84
SECTION 6 – ELECTRICAL, GAUGES & ALARMS………………… 89
BATTERY COMPARTMENT ……………………………… 99
ELECTRICAL COMPONENT LOCATIONS …………………….102
ELECTRICAL SCHEMATICS…………………………….. 89
SERIAL NUMBER 7262001 TO 7262010 ………………. 90
SERIAL NUMBER 7262011 AND UP ………………….. 93
FAN AUTO REVERSE CYCLE ……………………………105
FUSE AND RELAY PANEL……………………………… 89
CAB …………………………………………104
MAIN ……………………………………….. 96
RELAYS AND WIRE CONNECTIONS ……………………….100
WIRE COLOUR CODE CHART ……………………………106
WIRE CONNECTIONS – RELAYS …………………………100
SECTION 7 – ENGINE……………………………………107
CHARGE AIR COOLER ………………………………..115
CIRCUIT DESCRIPTION……………………………….107
CUMMINS ENGINE ……………………………….108
COOLING SYSTEM……………………………………107
CHARGE AIR COOLER …………………………….115
COOLANT FLOW DIAGRAM ………………………….114
COOLANT FLOW DURING OPERATION ………………….114
FILLING THE SYSTEM WITH COOLANT ………………..114
CUMMINS QSC ENGINE WIRING DIAGRAM ………………….112
PARKING BRAKE ……………………………………108
PRECLEANER……………………………………….116
operation ……………………………………116
SERVICE ……………………………………..116
RELAYS, DIODES AND FUSES PANEL …………………….109
START CIRCUIT DIAGRAMS – CUMMINS ‘C’ ENGINE………….107
AT REST ……………………………………..110
RUN AND DRIVE ………………………………..111
RUN, NO DRIVE ………………………………..111
START ……………………………………….110
starting system DESCRIPTION ……………………….108
SECTION 8 – DRIVE…………………………………….117
AXLES …………………………………………..156
Axle Lubrication ……………………………..158
BRAKE BLEEDING ……………………………….158
BRAKE LINING INSPECTION (REAR AXLE ONLY) ………..157
DIFFERENTIAL AND DIFFERENTIAL LOCKS …………….157
DRAINING THE AXLES ……………………………158
filling axles, alternative method ………………159
filling the axles …………………………….158
REAR AXLE OSCILLATION SHIM …………………….160
SERVICE BRAKES (REAR AXLE ONLY) ………………..157
CIRCUIT DESCRIPTION……………………………….117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..119
SINGLE MOTOR 2-SPEED TRANSMISSION ………………118
CIRCUIT DIAGRAM, DRIVE…………………………….117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..138
SINGLE MOTOR 2-SPEED TRANSMISSION ………………130
DRIVE MOTOR………………………………………117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..125
SINGLE MOTOR 2-SPEED TRANSMISSION ………………123
drive MOTOR PRESSURE SETTINGS AND ADJUSTMENTS ……….135
DRIVE pedal pilot VALVE …………………………..127
DRIVE PREVENT VALVE ………………………………128
DRIVE PUMP AND MOTOR PRESSURE SETTINGS AND ADJUST……117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..141
DRIVE PUMP PRESSURE SETTINGS AND ADJUSTMENTS…………117
SINGLE MOTOR 2-SPEED TRANSMISSION ………………133
DRIVE SHAFT, FRONT, INSTALLATION …………………..154
HYDRAULIC OIL HEAT-UP …………………………….147
HYDROSTATIC DRIVE SYSTEM…………………………..117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..119
SINGLE MOTOR 2-SPEED TRANSMISSION ………………118
PRESSURE SETTINGS AND ADJUSTMENTS…………………..117
SINGLE MOTOR 2-SPEED TRANSMISSION……………….117
DRIVE PUMP ……………………………….133
MOTOR MINIMUM DISPLACEMENT …………………137
MOTOR POR ………………………………..135
SPEED CONTROL LEVER VALVE …………………………129
TEST DRIVE……………………………………….117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..139
SINGLE MOTOR 2-SPEED TRANSMISSION ………………131
TRANSMISSION 1-SPEED (DUAL MOTOR) ………………….153
TRANSMISSION 2-SPEED (SINGLE MOTOR) ………………..151
SHIFT LEVER ………………………………….152
WHEEL INSTALLATION ……………………………….162
SECTION 9 – BRAKES AND DIFFERENTIAL LOCKS……………….163
AUXILIARY SET-UP CALIPER ………………………….166
BRAKES…………………………………………..163
BRAKE ACCUMULATOR …………………………….164
CIRCUIT DESCRIPTION …………………………..164
CIRCUIT DIAGRAM ………………………………165
FOOT CONTROL VALVE ……………………………164
DIFFERENTIAL LOCKS………………………………..163
CIRCUIT DESCRIPTION …………………………..164
CIRCUIT DIAGRAM ………………………………165
PARKING BRAKE ……………………………………166
AUXILIARY SET-UP CALIPER ………………………166
BRAKE CALIPER ASSEMBLY ………………………..168
CALIPER FLOAT ADJUSTMENT ………………………169
CHECKING FOR proper ADJUSTMENT …………………167
LINING REPLACEMENT ……………………………169
Proximity sensor ……………………………..167
SECTION 10 – OIL COOLER, RADIATOR AND FAN……………….171
CHARGE AIR COOLER ………………………………..172
CIRCUIT DIAGRAM, CROSS-FLOW FAN ……………………183
COOLING SYSTEM……………………………………171
COOLANT FLOW DIAGRAM ………………………….174
COOLING SYSTEM, ENGINE See SECTION 7 IN THIS MANUAL…..171
CROSS-FLOW FAN CIRCUIT DIAGRAM …………………….183
CROSS-FLOW FAN WITH ELECTRONIC FAN DRIVE CONTROL …….179
ENGINE ACCESS PANELS ……………………………..187
ENGINE COOLING SYSTEM See SECTION 7 IN THIS MANUAL……171
FAN COOLING CIRCUIT DESCRIPTION ……………………182
FAN DRIVE MOTOR ………………………………….182
FAN SPEED CHECKS …………………………………185
CHECK FOR NO A/C DURING CLEAN MODE ……………..185
FAN ‘CLEAN’ SPEED …………………………….185
fan FULL ON speed …………………………….185
MINIMUM FAN SPEED WITH A/C “ON” ………………..185
HYDRAULIC HAND FILL PUMP ………………………….177
OIL COOLER ………………………………………172
OIL COOLER and RADIATOR INSTALLATION ……………….173
OIL COOLER CIRCUIT DESCRIPTION …………………….178
PUMP CIRCUIT SCHEMATIC ……………………………178
SCHEMATIC – PUMP CIRCUIT ………………………….178
SECTION 11- STEERING AND CENTER JOINT…………………..189
CENTER JOINT……………………………………..198
ADJUSTMENT …………………………………..198
CHECKING …………………………………….198
DIAGRAM ……………………………………..199
GREASE SEALS …………………………………199
LUBRICATION ………………………………….198
MAINTENANCE ………………………………….198
CIRCUIT DESCRIPTION ………………………………194
CIRCUIT DIAGRAM ………………………………….195
JOYSTICK CONTROL VALVE ……………………………193
PRESSURE SETTINGS ………………………………..196
SAFETY ………………………………………….196
STEER RELIEF VALVE ……………………………….192
STEER VALVE ……………………………………..192
CROSS SECTION ………………………………..192
DESCRIPTION ………………………………….192
OPERATING DESCRIPTION …………………………192
SECTION 12 – LIFT BOOM………………………………..201
boom lift lock …………………………………..206
BOOM VALVE……………………………………….201
ASSEMBLY PROCEDURE ……………………………210
CROSS SECTION OF SPOOL SECTION …………………203
OPERATING DESCRIPTION …………………………202
RELIEF VALVES ………………………………..208
CIRCUIT DESCRIPTION ………………………………204
CIRCUIT DIAGRAM ………………………………….205
JOYSTICK CONTROL VALVE ……………………………202
OPERATING DESCRIPTION …………………………202
PRESSURE SETTINGS ………………………………..206
PUMP, DESCRIPTION…………………………………201
BOOM/STEER PUMP See SECTION 11 – STEERING………..201
RELIEF VALVES…………………………………….208
ADJUSTING PROCEDURE …………………………..209
OPERATION ……………………………………208
SECTION 13 – TILT…………………………………….211
boom lift lock …………………………………..215
BOOM VALVE DIAGRAM ……………………………….212
CIRCUIT DESCRIPTION ………………………………212
CIRCUIT DIAGRAM ………………………………….213
CONTROL VALVES …………………………………..212
PRESSURE SETTINGS ………………………………..214
RELIEF VALVES…………………………………….211
ADJUSTING PROCEDURE …………………………..215
SECTION 17 – SAW DRIVE………………………………..217
CIRCUIT DESCRIPTION ………………………………220
CIRCUIT DIAGRAM ………………………………….221
PRESSURE SETTINGS ………………………………..222
PUMP CIRCUIT SCHEMATIC ……………………………224
SAFETY ………………………………………….222
SAW MOTOR. See SAW MANUFACTURER’S MANUAL…………….217
SAW PUMP…………………………………………217
POR VALVE ……………………………………223
TEST PORT ……………………………………223
SAW VALVES……………………………………….217
PILOT OPERATED SOLENOID VALVE ………………….218
SAW SECTION OF BOOM VALVE ……………………..219
SCHEMATIC – PUMP CIRCUIT ………………………….224
SECTION 18 – CLAMPS…………………………………..225
boom lift lock …………………………………..230
BOOM VALVE ………………………………………226
OPERATING DESCRIPTION …………………………227
SPOOL SECTION DIAGRAM …………………………227
CIRCUIT DIAGRAM ………………………………….229
CONTROL VALVES …………………………………..226
PILOT LINE PRESSURES See SECTION 5 – PILOT SYSTEM…….225
PRESSURE SETTINGS ………………………………..230
RELIEF VALVES…………………………………….232
ADJUSTING PROCEDURE …………………………..231
OPERATION ……………………………………232
SAFETY ………………………………………….230
SPOOL SECTION DIAGRAM …………………………….227
SECTION 19 – SHEAR WITH CLAMPS…………………………233
BOOM LIFT LOCK …………………………………..238
BOOM VALVE ………………………………………234
OPERATING DESCRIPTION …………………………235
SPOOL SECTION ………………………………..235
CIRCUIT DESCRIPTION ………………………………237
CIRCUIT DIAGRAM ………………………………….236
CONTROL VALVES …………………………………..234
FOOT OPERATED PILOT VALVE See SECTION 8 – DRIVE………233
PRESSURE SETTINGS ………………………………..238
SAFETY ………………………………………….238
SHEAR PUMP……………………………………….233
POR VALVE ……………………………………239
TEST PORT ……………………………………239

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TIGERCAT 726D FELLER BUNCHER SERVICE MANUAL – PDF DOWNLOAD:

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