Scag Power Equipment Turf Tiger STT-29DFI-SS User manual

PART NO. 03221 Rev. 1
PRINTED 4/2008
PRINTED IN USA
© 2008
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
Congratulations on owning a Scag mower! This manual contains the operating
instructions and safety information for your Scag mower. Reading this manual
can provide you with assistance in maintenance and adjustment procedures to
keep your mower performing to maximum efciency. The specic models that
this book covers are listed on the inside cover. Before operating your machine,
please read all the information enclosed.
OPERATOR’S
MANUAL
TurfTiger
Models: STT52V-27CH
STT61V-27CH
STT61V-27KA
STT61V-29DFI-SS
STT61V-35BV-SS
STT-29DFI-SS
STT-35BV-SS

WARNING
FAILURETO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN
SERIOUS INJURY OR DEATH.
Read this manual completely as well as other manuals that came with your mower.•
DO NOT operate on steep slopes.To check a slope, attempt to back up it (with the• cutter deck down). If the machine can back up the slope without the wheels slipping,
reduce speed and use extreme caution.
Under no circumstances should the machine be operated on slopes greater than 15• degrees. ALWAYS FOLLOW OSHA APPROVED OPERATION.
DO NOT mow on wet grass.Wet grass reduces traction and steering control.•
Keep all shields in place, especially the grass discharge chute.•
Before performing any maintenance or service, stop the machine and remove the• spark plug wire and ignition key.
If a mechanism becomes clogged, stop the engine before cleaning.•
Keep hands, feet and clothing away from power-driven parts.•
Keep others off the mow• er (only one person at a time)
REMEMBER -YOUR MOWER IS ONLY AS SAFE ASTHE OPERATOR!
HAZARD CONTROL AND ACCIDENT PREVENTION ARE DEPENDENT UPON THE AWARENESS,
CONCERN, PRUDENCE, AND PROPER TRAINING OF THE PERSONNEL INVOLVED IN THE
OPERATION,TRANSPORT, MAINTENANCE, AND STORAGE OFTHE EQUIPMENT.
This manual covers the operating instructions and illustrated parts list for:
STT52V-27CH with a serial number of D7400001 to D7499999
STT61V-27CH with a serial number of D7500001 to D7599999
STT61V-27KA with a serial number of D7600001 to D7699999
STT61V-29DFI-SS with a serial number of D7700001 to D7799999
STT61V-35BV-SS with a serial number of D7800001 to D7899999
STT-29DFI-SS with a serial number of D8100001 to D8199999
STT-35BV-SS with a serial number of D8200001 to D8299999
SMT-52V with a serial number of D9400001 to D9499999
SMT-61V with a serial number of D9500001 to D9599999
SMST-61V (BVAC, BV) with a serial number of D9900001 to D9999999
SMT-72VS with a serial number of E3400001 to E3499999
SMST-72A with a serial number of E0000001 to E0099999
Always use the entire serial number listed on the serial number tag when referring to this product.

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Table of Contents
Table of Contents
GENERAL INFORMATIONSECTION 1 - ...................................................................................1
1.1 INTRODUCTION...........................................................................................................................................1
1.2 DIRECTION REFERENCE...........................................................................................................................1
1.3 SERVICINGTHE ENGINE AND DRIVETRAIN COMPONENTS.................................................................1
1.4 SYMBOLS ....................................................................................................................................................2
SAFETY INFORMATIONSECTION 2 - ......................................................................................3
2.1 INTRODUCTION...........................................................................................................................................3
2.2 SIGNALWORDS..........................................................................................................................................3
2.3 BEFORE OPERATION CONSIDERATIONS................................................................................................3
2.4 OPERATION CONSIDERATIONS................................................................................................................4
2.5 ROLL-OVER PROTECTION SYSTEM.........................................................................................................6
2.6 MAINTENANCE CONSIDERATIONS & STORAGE....................................................................................8
2.7 SAFETY AND INSTRUCTIONAL DECALS.................................................................................................9
SPECIFICATIONSSECTION 3 - ..............................................................................................10
3.1 ENGINE ......................................................................................................................................................10
3.2 ELECTRICAL .............................................................................................................................................10
3.3 POWER HEAD ...........................................................................................................................................11
3.4 CUTTER DECK ..........................................................................................................................................11
3.5 HYDRAULIC SYSTEM ...............................................................................................................................12
3.6WEIGHTS AND DIMENSIONS...................................................................................................................12
3.7 PRODUCTIVITY .........................................................................................................................................12
OPERATING INSTRUCTIONSSECTION 4 - ...........................................................................13
4.1 CONTROLS AND INSTRUMENT IDENTIFICATION ................................................................................13
4.2 SAFETY INTERLOCK SYSTEM................................................................................................................14
4.3 INITIAL RUN-IN PROCEDURES................................................................................................................15
4.4 STARTINGTHE ENGINE ...........................................................................................................................15
4.5 GROUNDTRAVEL AND STEERING.........................................................................................................15
4.6 ENGAGINGTHE DECK DRIVE (CUTTER BLADES)................................................................................16
4.7 HILLSIDE OPERATION..............................................................................................................................17
4.8 PARKINGTHE MOWER.............................................................................................................................17
4.9 AFTER OPERATION..................................................................................................................................17
4.10 REMOVING CLOGGED MATERIAL........................................................................................................17
4.11 MOVING MOWERWITH ENGINE STOPPED..........................................................................................18
4.12 RECOMMENDATIONS FOR MOWING....................................................................................................18
4.13 ADJUSTING CUTTING HEIGHT..............................................................................................................18
4.14 ADJUSTINGTHE STEERING LEVERS...................................................................................................19
4.15 ADJUSTINGTHE HEIGHT ADJUST PEDAL ..........................................................................................19
4.16TOWING (OPTIONAL HITCH ACCESSORY)...........................................................................................20

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TROUBLESHOOTING CUTTING CONDITIONSSECTION 5 - ...............................................21
ADJUSTMENTSSECTION 6 - .................................................................................................24
6.1 PARKING BRAKE ADJUSTMENT ............................................................................................................24
6.2TRAVEL ADJUSTMENTS ..........................................................................................................................25
6.3THROTTLE CONTROL AND CHOKE ADJUSTMENTS............................................................................26
6.4 BELT ADJUSTMENT .................................................................................................................................26
6.5 BELT ALIGNMENT.....................................................................................................................................27
6.6 CUTTER DECK ADJUSTMENTS ..............................................................................................................27
6.7 CUSTOM-CUT BAFFLE ADJUSTMENT ...................................................................................................28
MAINTENANCESECTION 7 - ..................................................................................................31
7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS ......................................................31
7.2 LUBRICATION............................................................................................................................................32
7.3 HYDRAULIC SYSTEM...............................................................................................................................34
7.4 ENGINE OIL ...............................................................................................................................................35
7.5 ENGINE FUEL SYSTEM............................................................................................................................35
7.6 ENGINE AIR CLEANER.............................................................................................................................36
7.7 BATTERY....................................................................................................................................................37
7.8 DRIVE BELTS.............................................................................................................................................38
7.9 CUTTER BLADES......................................................................................................................................38
7.10TIRES........................................................................................................................................................39
7.11 CUTTER DECK GEARBOX.....................................................................................................................39
7.12 COOLING SYSTEM .................................................................................................................................40
7.13 BODY, DECK, AND UPHOLSTERY.........................................................................................................41
ILLUSTRATED PARTS LISTSECTION 8 - ..............................................................................42
8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES......................................................................42
52V CUTTER DECK.........................................................................................................................................43
61V & 72VS CUTTER DECKS.........................................................................................................................45
72A CUTTER DECK.........................................................................................................................................47
CUTTER DECK CONTROLS...........................................................................................................................49
SHEET METAL COMPONENTS......................................................................................................................51
STT ROLL-OVER PROTECTION SYSTEM -WITHOUT SUSPENSION SEAT...............................................53
STT ROLL-OVER PROTECTION SYSTEM -WITH SUSPENSION SEAT ......................................................55
DECK DRIVE COMPONENTS.........................................................................................................................57
ENGINE AND ATTACHING PARTS - KOHLER...............................................................................................59
ENGINE & ATTACHING PARTS - 27HP, 29DFI KAWASAKI...........................................................................61
ENGINE & ATTACHING PARTS - 35HP BRIGGS & STRATTON ...................................................................63
BRAKE AND STEERING COMPONENTS ......................................................................................................65
FUEL AND HYDRAULIC SYSTEM..................................................................................................................67
FUEL AND HYDRAULIC SYSTEM - 29DFI KAWASAKI.................................................................................69
BDP-16A HYDRAULIC PUMP ASSEMBLY.....................................................................................................71
BDP-16A HYDRAULIC PUMP ASSEMBLY WITH COOLING FAN(29DFI, 35BV ONLY) ...............................73

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ELECTRICAL SYSTEM (KOHLER).................................................................................................................75
ELECTRICAL SYSTEM - 27HP KAWASAKI, 35BV BRIGGS & STRATTON.................................................77
ELECTRICAL SYSTEM - 29DFI KAWASAKI..................................................................................................79
REPLACEMENT DECALS AND INFORMATION PLATES .............................................................................81
STT ELECTRICAL SCHEMATIC (KOHLER)...................................................................................................83
ELECTRICAL SCHEMATIC - 29DFI KAWASAKI............................................................................................85
NOTES..............................................................................................................................................................87
LIMITEDWARRANTY - COMMERCIAL EQUIPMENT............................Inside Back Cover