Tigercat M726D MULCHER SERVICE MANUAL – PDF DOWNLOAD

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Tigercat M726D MULCHER SERVICE MANUAL – PDF DOWNLOAD

DESCRIPTION:

Tigercat M726D MULCHER 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 M726D Mulcher serial number
  726M3001 and up.
• The operator’s manual will assist the operator with the techniques of proper and safe operation of the
  M726D Mulcher. There is also important information regarding the safe operation of the mulching 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 M726D MULCHER SERVICE MANUAL – PDF DOWNLOAD

M726D 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 ………………………………….. 20
CAB EXITS ………………………………………. 15
EMERGENCY CAB EXITS ……………………………… 15
ENGINE ACCESS PANELS …………………………….. 21
FIRE PREVENTION …………………………………. 22
FIRE PREVENTION GUIDELINES ……………………. 22
WHAT ELSE TO DO BEFORE YOU EXPERIENCE A FIRE ……. 23
WHAT TO DO AFTER A FIRE ………………………. 24
WHAT TO DO IN CASE OF A MACHINE FIRE …………… 23
HAZARD ZONE …………………………………….. 9
MULCHING OPERATION SAFETY ………………………… 16
PARKING THE MACHINE ……………………………… 14
SAFETY INTERLOCK SWITCHES ON CAB DOORS …………….. 15
SAFETY PRECAUTIONS, GENERAL ………………………. 8
SAFETY PRECAUTIONS, OPERATING …………………….. 12
SAFETY PRECAUTIONS, SERVICING …………………….. 18
SAFETY SYMBOLS ………………………………….. 8
SIGNAL WORDS ……………………………………. 8
APPENDIX – USING HIGH SPEED DISC SAWS SAFELY……………. 25
Comments and instructions…………………………. 25
Direction of throw …………………………… 31
High angle wrist rotation ability ……………… 32
Recognizing the Dangers ………………………. 31
Throwing long wood pieces …………………….. 34
Dangers ………………………………………… 27
forward ………………………………………… 26
Be aware of the hazards ………………………. 26
Other instructions …………………………… 27
Safe practices ………………………………. 27
Several types of heads involved ……………….. 26
Stored energy ……………………………….. 26
HIGH ANGLE WRIST ROTATION CAPABILITY ………………. 33
Saw Head Don’ts …………………………………. 39
Type of Housing makes a Difference ………………… 28
SECTION 3 – LUBRICATION & MAINTENANCE………………….. 41
AIR CLEANER MAINTENANCE ………………………….. 54
AIR CONDITIONING SYSTEM, CHECKING …………………. 58
BELT, ENGINE SERPENTINE, REPLACING ………………… 63
CENTER JOINT…………………………………….. 59
LUBRICATION …………………………………. 59
MAINTENANCE …………………………………. 59
DRIVE SHAFT SPLINE LUBRICATION, MIDDLE AND REAR …….. 64
ELECTRICAL SCHEMATIC……………………………… 41
SHEET 1 OF 3 ………………………………… 70
SHEET 2 OF 3 ………………………………… 71
SHEET 3 OF 3 ………………………………… 72
EMERGENCY EXITS, CHECK MONTHLY ……………………. 43
ENGINE SERPENTINE BELT, REPLACING …………………. 63
FILTERS…………………………………………. 41
ENGINE AIR CLEANER …………………………… 54
FUEL FILTER/WATER SEPARATOR …………………… 50
FUEL TANK STRAINER …………………………… 51
HYDRAULIC OIL RETURN FILTERS ………………….. 52
HYDROSTATIC CHARGE PUMP PRESSURE FILTERS ………. 53
SERVICING GUIDELINES FOR OIL FILTERS …………… 53
FIRE PREVENTION …………………………………. 43
HYDRAULIC OILS ………………………………….. 47
NEW MACHINE MAINTENANCE…………………………… 41
FIRST 50-100 HOUR INSPECTION AND SERVICE REPORT …. 42
INITIAL PRE-DELIVERY INSPECTION ……………….. 42
TIGHTENING POINTS ……………………………. 42
OIL LOST FROM LEAKAGE ……………………………. 42
PRESSURE SETTINGS ……………………………….. 69
PRESSURIZED WATER SYSTEM MAINTENANCE ………………. 56
REPLACING THE ENGINE SERPENTINE BELT ………………. 63
SCHEDULED MAINTENANCE…………………………….. 41
GENERAL …………………………………….. 43
8 HOURS …………………………………….. 44
125 HOURS …………………………………… 45
250 HOURS …………………………………… 45
500 HOURS …………………………………… 46
1000 HOURS ………………………………….. 46
2000 HOURS ………………………………….. 46
SEASONAL ……………………………………. 47
SERVICE AND LUBRICATION POINTS CHART ………………. 49
SPEED CONTROL LEVER ADJUSTMENT ……………………. 66
STARTUP PROCEDURE AFTER MAINTENANCE ……………….. 60
TORQUE CHART ……………………………………. 67
TORQUE SPECIFICATIONS – GENERAL …………………… 68
TRANSMISSION ……………………………………. 59
CHECK OIL LEVEL ……………………………… 59
WHEELS, INSTALLING ………………………………. 42
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 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 SCHEMATIC……………………………… 89
SHEET 1 OF 3 ………………………………… 90
SHEET 2 OF 3 ………………………………… 91
SHEET 3 OF 3 ………………………………… 92
FAN AUTO REVERSE CYCLE ……………………………105
FUSE AND RELAY PANEL……………………………… 89
CAB …………………………………………104
MAIN ……………………………………….. 96
RELAYS AND WIRE CONNECTIONS ……………………….100
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 …………………………………………..139
Axle Lubrication ……………………………..141
BRAKE BLEEDING ……………………………….141
BRAKE LINING INSPECTION (REAR AXLE ONLY) ………..140
DIFFERENTIAL AND DIFFERENTIAL LOCKS …………….140
DRAINING THE AXLES ……………………………141
filling axles, alternative method ………………142
filling the axles …………………………….141
REAR AXLE OSCILLATION SHIM …………………….143
SERVICE BRAKES (REAR AXLE ONLY) ………………..140
CIRCUIT DESCRIPTION……………………………….117
SINGLE MOTOR 2-SPEED TRANSMISSION ………………118
CIRCUIT DIAGRAM, DRIVE…………………………….117
SINGLE MOTOR 2-SPEED TRANSMISSION ………………129
DRIVE MOTOR………………………………………117
SINGLE MOTOR 2-SPEED TRANSMISSION ………………124
DRIVE pedal pilot VALVE …………………………..126
DRIVE PREVENT VALVE ………………………………127
DRIVE PUMP ………………………………………118
DRIVE PUMP AND MOTOR PRESSURE SETTINGS AND ADJUST……117
DUAL MOTOR 1-SPEED TRANSMISSION ………………..132
DRIVE SHAFT, FRONT, INSTALLATION …………………..137
HYDRAULIC OIL HEAT-UP …………………………….131
HYDROSTATIC DRIVE SYSTEM…………………………..117
SINGLE MOTOR 2-SPEED TRANSMISSION ………………118
SPEED CONTROL LEVER VALVE …………………………128
TEST DRIVE……………………………………….117
SINGLE MOTOR 2-SPEED TRANSMISSION ………………130
TRANSMISSION 2-SPEED (SINGLE MOTOR) ………………..135
SHIFT LEVER ………………………………….136
WHEEL INSTALLATION ……………………………….145
SECTION 9 – BRAKES AND DIFFERENTIAL LOCKS……………….147
AUXILIARY SET-UP CALIPER ………………………….150
BRAKES…………………………………………..147
BRAKE ACCUMULATOR …………………………….148
CIRCUIT DESCRIPTION …………………………..148
CIRCUIT DIAGRAM ………………………………149
FOOT CONTROL VALVE ……………………………148
DIFFERENTIAL LOCKS………………………………..147
CIRCUIT DESCRIPTION …………………………..148
CIRCUIT DIAGRAM ………………………………149
PARKING BRAKE ……………………………………150
AUXILIARY SET-UP CALIPER ………………………150
BRAKE CALIPER ASSEMBLY ………………………..152
CALIPER FLOAT ADJUSTMENT ………………………153
CHECKING FOR proper ADJUSTMENT …………………151
LINING REPLACEMENT ……………………………153
Proximity sensor ……………………………..151
SECTION 10 – OIL COOLER/RADIATOR AND CROSS-FLOW………….155
BLINK CODES ……………………………………..171
CHARGE AIR COOLER ………………………………..156
CIRCUIT DIAGRAM, CROSS-FLOW FAN ……………………168
COOLING SYSTEM……………………………………155
COOLANT FLOW DIAGRAM ………………………….158
COOLING SYSTEM, ENGINE See SECTION 7 IN THIS MANUAL…..155
CROSS-FLOW FAN CIRCUIT DIAGRAM …………………….168
CROSS-FLOW FAN WITH ELECTRONIC FAN DRIVE CONTROL …….164
ENGINE ACCESS PANELS ……………………………..172
ENGINE COOLING SYSTEM See SECTION 7 IN THIS MANUAL……155
FAN CONTROLLER BLINK CODES ………………………..171
FAN COOLING CIRCUIT DESCRIPTION ……………………167
FAN DRIVE MOTOR ………………………………….167
FAN SPEED CHECKS …………………………………170
CHECK FOR NO A/C DURING CLEAN MODE ……………..170
FAN ‘CLEAN’ SPEED …………………………….170
fan FULL ON speed …………………………….170
MINIMUM FAN SPEED WITH A/C “ON” ………………..170
HYDRAULIC HAND FILL PUMP ………………………….161
OIL COOLER ………………………………………156
OIL COOLER and RADIATOR INSTALLATION ……………….157
OIL COOLER CIRCUIT DESCRIPTION …………………….162
PRESSURIZING THE HYDRAULIC TANK ……………………160
PUMP CIRCUIT SCHEMATIC ……………………………162
SCHEMATIC – PUMP CIRCUIT ………………………….162
VENTING THE HYDRAULIC RESERVOIR ……………………160
SECTION 11- STEERING AND CENTER JOINT…………………..173
CENTER JOINT……………………………………..182
ADJUSTMENT …………………………………..182
CHECKING …………………………………….182
DIAGRAM ……………………………………..183
GREASE SEALS …………………………………183
LUBRICATION ………………………………….182
MAINTENANCE ………………………………….182
CIRCUIT DESCRIPTION ………………………………178
CIRCUIT DIAGRAM ………………………………….179
JOYSTICK CONTROL VALVE ……………………………177
PRESSURE SETTINGS ………………………………..180
SAFETY ………………………………………….180
STEER RELIEF VALVE ……………………………….176
STEER VALVE ……………………………………..176
CROSS SECTION ………………………………..176
DESCRIPTION ………………………………….176
OPERATING DESCRIPTION …………………………176
SECTION 12 – LIFT BOOM………………………………..185
boom lift lock …………………………………..190
BOOM VALVE……………………………………….185
ASSEMBLY PROCEDURE ……………………………194
CROSS SECTION OF SPOOL SECTION …………………187
OPERATING DESCRIPTION …………………………186
RELIEF VALVES ………………………………..192
CIRCUIT DESCRIPTION ………………………………188
CIRCUIT DIAGRAM ………………………………….189
JOYSTICK CONTROL VALVE ……………………………186
OPERATING DESCRIPTION …………………………186
PRESSURE SETTINGS ………………………………..190
PUMP, DESCRIPTION…………………………………185
BOOM/STEER PUMP See SECTION 11 – STEERING………..185
RELIEF VALVES…………………………………….192
ADJUSTING PROCEDURE …………………………..193
OPERATION ……………………………………192
SECTION 13 – TILT…………………………………….195
boom lift lock …………………………………..199
BOOM VALVE DIAGRAM ……………………………….196
CIRCUIT DESCRIPTION ………………………………196
CIRCUIT DIAGRAM ………………………………….197
CONTROL VALVES …………………………………..196
PRESSURE SETTINGS ………………………………..198
RELIEF VALVES…………………………………….195
ADJUSTING PROCEDURE …………………………..199
SECTION 17 – ATTACHMENT DRIVE………………………….201
ATTACHMENT DRIVE – EARLY MACHINES…………………..201
SERIAL NUMBER 726M3001 TO 726M3020 ……………..202
ATTACHMENT DRIVE – LATER MACHINES…………………..201
SERIAL NUMBER 726M3021 AND UP ………………….213
CIRCUIT DESCRIPTION……………………………….201
SERIAL NUMBER 726M3001 TO 726M3020 ……………..205
SERIAL NUMBER 726M3021 AND UP ………………….217
CIRCUIT DIAGRAM…………………………………..201
SERIAL NUMBER 726M3001 TO 726M3020 ……………..206
CUT-OFF PRESSURE………………………………….201
SERIAL NUMBER 726M3021 AND UP ………………….217
CUTTER CONTROL VALVE………………………………201
SERIAL NUMBER 726M3001 TO 726M3020 ……………..204
ELECTRONIC DISPLACEMENT CONTROL…………………….201
SERIAL NUMBER 726M3021 AND UP ………………….216
GAUGE TEST PORTS………………………………….201
SERIAL NUMBER 726M3021 AND UP ………………….224
HYDRAULIC SET-UP PROCEDURE…………………………201
SERIAL NUMBER 726M3021 AND UP ………………….225
PRESSURE SETTINGS…………………………………201
SERIAL NUMBER 726M3001 TO 726M3020 ……………..207
SERIAL NUMBER 726M3021 AND UP ………………….224
PUMP CIRCUIT SCHEMATIC…………………………….201
SERIAL NUMBER 726M3021 AND UP ………………….218
PUMP CONTROL VALVES & RELIEF VALVES…………………201
SERIAL NUMBER 726M3021 AND UP ………………….216
RELIEF VALVES…………………………………….201
SERIAL NUMBER 726M3021 AND UP ………………….216
SAFETY…………………………………………..201
SERIAL NUMBER 726M3021 AND UP ………………….224
SAW MOTOR. See SAW MANUFACTURER’S MANUAL…………….201
SAW VALVES……………………………………….201
PILOT OPERATED SOLENOID VALVE…………………..201
SERIAL NUMBER 726M3021 AND UP ………………215
SCHEMATIC – PUMP CIRCUIT…………………………..201
SERIAL NUMBER 726M3021 AND UP ………………….218
SET-UP PROCEDURE………………………………….201
SERIAL NUMBER 726M3021 AND UP ………………….225
TEST PORTS……………………………………….201
SERIAL NUMBER 726M3021 AND UP ………………….224
SECTION 18 – CLAMPS…………………………………..229
boom lift lock …………………………………..234
BOOM VALVE ………………………………………230
OPERATING DESCRIPTION …………………………231
SPOOL SECTION DIAGRAM …………………………231
CIRCUIT DIAGRAM ………………………………….233
CONTROL VALVES …………………………………..230
PILOT LINE PRESSURES See SECTION 5 – PILOT SYSTEM…….229
PRESSURE SETTINGS ………………………………..234
RELIEF VALVES…………………………………….236
ADJUSTING PROCEDURE …………………………..235
OPERATION ……………………………………236
SAFETY ………………………………………….234
SPOOL SECTION DIAGRAM …………………………….231
SECTION 19 – MULCH DEFLECTOR DOOR………………………237
boom lift lock …………………………………..242
BOOM VALVE ………………………………………238
CROSS SECTION OF SPOOL SECTION …………………239
OPERATING DESCRIPTION …………………………239
CIRCUIT DESCRIPTION ………………………………240
CIRCUIT DIAGRAM ………………………………….241
CONTROL VALVES …………………………………..238
PILOT LINE PRESSURES See SECTION 5 – PILOT SYSTEM…….237
PRESSURE SETTINGS ………………………………..242
RELIEF VALVES ……………………………………244
SAFETY ………………………………………….242
SPOOL SECTION DIAGRAM …………………………….239

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TIGERCAT M726D MULCHER SERVICE MANUAL – PDF DOWNLOAD:

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