Scag Power Equipment Turf Tiger STT-31EFI-SS Operator's Manual

PART NO. 03291PRINTED 1/2012PRINTED IN USA© 2012Scag Power EquipmentDivision of Metalcraft of Mayville, Inc.Congratulations on owning a Scag mower! Th

6RSection 2Lower the roll bar only when absolutely necessary.To lower the roll bar, remove the hairpin cotter pins 1. and remove the two (2) lock pins

7RSection 2 WARNINGFailure to properly inspect and maintain the seat belt can cause serious injury or loss of life.Check the full length of the seat b

8RSection 2MAINTENANCE CONSIDERATIONS & 2.6 STORAGENever make adjustments to the machine with the 1. engine running unless specifically instructed

9RSection 2SAFETY AND INSTRUCTIONAL DECALS2.9 WARNINGINSTALL BELT COVER BEFOREOPERATING MACHINEREAD OPERATOR'S MANUAL483402390S0150i481568FORWARD

10RSection 3SPECIFICATIONSENGINE3.1 General Type ...Heavy

11RSection 3CUTTER DECK3.4 Type ...Floating, Adjustable, Anti-scalping, Hybrid Design Combines Out-front and Belly-mount Desig

12RSection 4 CAUTIONDo not attempt to operate this mower unless you have read this manual. Learn the location and purpose of all controls and

13RSection 4Hourmeter (Figure 4-1).5. Indicates the number of hours the engine has been operated. It only operates when the engine is running. Has

14RSection 4INITIAL RUN-IN PROCEDURES4.3 FIRST DAY OF USE OR APPROXIMATELY 20 HOURSCheck all belts for proper alignment and wear at 2, 4 1. and 8 hour

15RSection 4- IMPORTANT -Do not travel forward over a curb. The mower will hang up on the curb. Raise the deck and travel backwards over the cu

WARNINGFAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY OR DEATH.Read this manual completely as well as other manuals that cam

16RSection 4HILLSIDE OPERATION4.7 WARNINGDO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down). If the

17RSection 4MOVING MOWER WITH ENGINE 4.11 STOPPEDTo “free-wheel” or move the mower around without the engine running, rotate the dump valve levers cou

18RSection 4Insert the lanyard pin into the cutting height index at 3. the desired cutting height. Push forward on the deck lift foot lever, hold in p

19RSection 4TOWING (OPTIONAL HITCH 4.16 ACCESSORY)NEVER allow children or others in or on towed 1. equipment.Tow only with a machine that has a hitch

20RSection 5CONDITION CAUSE CURESTRINGERS - OCCASIONAL BLADES OF UNCUT GRASSWidth of DeckSGB020Low engine RPM Run engine at full RPMGround speed too

21RSection 5CONDITION CAUSE CUREU N E V E N C U T O N F L AT GROUND - WAVY HIGH-LOW APPEARANCE, SCALLOPED CUT, OR ROUGH CONTOURWidth of DeckS

22RSection 5CONDITION CAUSE CURESCALPING - BLADES HITTING DIRT OR CUTTING VERY CLOSE TO THE GROUNDWidth of DeckSGB022Low tire pressures Check and adju

23RSection 6PARKING BRAKE ADJUSTMENT6.1 WARNINGDo not operate the mower if the parking brake is not operable. Possible severe injury co

24RSection 6B. The steering control levers are in the full forward position and the mower pulls to one side or the other when traveling in a

25RSection 6TRACKING ADJUSTMENT CAUTIONStop the engine and remove the key from the ignition before making any adjustments. Wait for all mo

IRTable of ContentsTable of ContentsGENERAL INFORMATIONSECTION 1 - ...

26RSection 6CUTTER DECK ADJUSTMENTS6.6 Cutter deck level, pitch and height are set at the factory. However, if these adjustments should ever nee

27RSection 6CUTTER DECK HEIGHTThe cutter deck height adjustment is made to insure that the cutter deck is cutting at the height indicated on the cutti

28RSection 6CUSTOM-CUT BAFFLE ADJUSTMENT6.7 The Custom-Cut Baffle is designed to deliver optimum airflow and superior cutting performance

29RSection 6ELECTRIC CLUTCH ADJUSTMENT6.8 The electric clutch serves two functions in the operation of the mower. In addition to starting and stoppin

30RSection 7MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS7.1 HOURSPROCEDURE COMMENTSBREAK-IN (FIRST 10)8 20 40 100 200 500XCheck all hardware for

31RSection 7MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS (CONT'D)HOURSPROCEDURE COMMENTSBREAK-IN (FIRST 10)8 40 100 200 500XApply grease to

32RSection 7GREASE FITTING LUBRICATIONLUBRICANT / INTERVALLITHIUM MP WHITE GREASE 2125( 40 HOURS / WEEKLY )CHASSIS GREASE( 100 HOURS / BI-MONTHLY )CHA

33RSection 7- IMPORTANT -The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the hydraulic oil.Park t

34RSection 7STT99CECENGINE OIL FILTERDRAINPLUGDrain Plug and Oil Filter LocationFigure 7-5. C. CHANGING ENGINE OIL FILTERAfter the first 20 hours of o

35RSection 7EF1/41/23/4...FUEL LEVELFILLER NECK INSERTC.A.R.B. / EPA Phase 3 Fuel LevelFigure 7-6. To avoid personal injury or property damage,

IIRTable of ContentsADJUSTMENTSSECTION 6 - ...236.1 PA

36RSection 7- NOTE -In extremely dusty conditions it may be necessary to check the element once or twice daily to prevent engine damage.Unhook the cla

37RSection 7 WARNINGBATTERIES PRODUCE EXPLOSIVE GASES. Charge the battery in a well ventilated space so gases produced while charging can dissipate

38RSection 7SGB033Angle Blade BackDo Not Cut InX Must NOT Exceed1/3 Blade WidthX30Blade SharpeningFigure 7-8. Check the balance of the blade. If the b

39RSection 7CUTTER DECK GEARBOX7.11 A. CHECKING LUBRICANT LEVEL CAUTIONThe cutter deck gearbox can reach high operating temperatures. Allow the cutter

40RSection 7Replace the radiator cap. Push down on the cap and 3. turn clockwise until it stops.- NOTE -The cooling system should be flushed and

41RSection 8SCAG APPROVED ATTACHMENTS AND ACCESSORIES8.1 Attachments and accessories manufactured by companies other than Scag Power Equipment are not

42RSection 861V & 72VS CUTTER DECKS14 15 16172319185116566683412126457AABB179865354562585661617117957205726910264239217473232422202027301429323328

43RSection 861V & 72VS CUTTER DECKSRef. No.Part No. Description 61 72Ref. No.Part No. Description 61 721234567891011121314151617181920212223242526

44RSection 8CUTTER DECK CONTROLSSTT2006CDC21193742461410 4252335234138323430727334041282824264140CUTTER DECK134039314140394398452018361644174140261129

45RSection 8CUTTER DECK CONTROLSRef. No.Part No. Description123456789101112131415161718192021222324252627282930313233343536373839404142434445461929481

1RSection 1INTRODUCTION1.1 Your mower was built to the highest standards in the industry. However, the prolonged life and maximum efficiency of your m

46RSection 8SHEET METAL COMPONENTSSTT 2011 SMC48502630251215199123243132333429333637403938414243513544451527224202815141312111016172058718184AA6494746

47RSection 8SHEET METAL COMPONENTSRef. No.Part No. DescriptionRef. No.Part No. Description123456789101112131415161718192021222324252627282930313233343

48RSection 8STT ROLL-OVER PROTECTION SYSTEM23442343411178695751110116109255

49RSection 8STT ROLL-OVER PROTECTION SYSTEMRef.No.Part No. Description123456789101146221004001-8704021-1904040-1348416804001-16304021-1942547848417048

50RSection 8Ref. No.Part No. Description12345678910111213929204001-17804040-11483594482950482945482946482940482943482948482942482952482944482948482941

51RSection 8NOTES

52RSection 8DECK DRIVE COMPONENTSSTT 2005 DDCBAABCCFrame2140347464743424414559538547256646362752559606110115652121565585214131220174518661967455621575

53RSection 8DECK DRIVE COMPONENTSRef. No.Part No. DescriptionRef. No.Part No. Description1234567891011121314151617181920212223242526272829303132333435

54RSection 8ENGINE & ATTACHING PARTS - 31HP-EFI KOHLER STT 2009 EAPKH-EFI89610FRAMEREF. PUMPMTG. WELDMENT11135210121012101213141715167418192021222

55RSection 8ENGINE & ATTACHING PARTS - 31HP-EFI KOHLER Ref. No.Part No. Description123456789101112131415161718192021222324252627282930313233343542

2RSection 1SYMBOLS1.4 SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake 48071SSpinning Blade On/Start Spring Tension on Idler Off

56RSection 8BRAKE AND STEERING COMPONENTSSTT DB&SC A11011331791923411121343657734847464243 44 45155670697162656467605251503435TO RH PUMPTO LH PUMP

57RSection 8BRAKE AND STEERING COMPONENTSRef. No.Part No. DescriptionRef. No.Part No. Description12345678910111213141516171819202122232425262728293031

58RSection 8STT HYDRAULIC SYSTEMDDDEFCIHGGFEAABCDUMP VALVEB2011 STT HS.epsIH3923242640342535213133930301112136 44344 45 174616141532544542342535188201

59RSection 8STT HYDRAULIC SYSTEMRef. No.Part No. DescriptionRef. No.Part No. Description12345678910111213141516171819202122232425262728293031323334353

60RSection 8STT-31EFI FUEL SYSTEM2011 STT-31EFI FS - EPA Phase 3.epsZZ12345678910101010111112TankPurgeABTo Engine Purge PortBCAC171819202121222324252

61RSection 8STT-31EFI FUEL SYSTEMRef.No.Part No. Description1 484251 Fuel Gauge Assembly2 484242 Seal, Fuel Gauge3 484286 Fuel Cap, Tethered4 0

62RSection 8BDP-16A HYDRAULIC PUMP ASSEMBLY WITH COOLING FANORORPORT "A"SIDEPORT "B"SIDEOverhaul Seal Kit1234567891011121314151617

63RSection 8BDP-16A HYDRAULIC PUMP ASSEMBLY WITH COOLING FANRef.No.Part No. Description123456789101112131415161718192021222324252627282930313233343536

64RSection 8ELECTRICAL SYSTEM (31HP-EFI KOHLER)SCAGPOWER EQUIPMENT2128134561317STT2008 ESKH-EFI1011171815142022232425262829301415910118BB7151416A3118A

65RSection 8ELECTRICAL SYSTEM (31HP-EFI KOHLER)Ref. No.Part No. Description123456789101112131415161718192021222324252627282930313233343536374811844829

3RSection 2INTRODUCTION2.1 Your mower is only as safe as the operator. Carelessness or operator error may result in serious bodily injury or

66RSection 8STT REPLACEMENT DECALS AND INFORMATION PLATES - ALL MODELS1235864912137CHOKESLOWFAST48298348404STT 2011 Decals 1WARNINGINSTALL BELT COVER

67RSection 8481569R162011 STT Decals Page21719181548166348166420212414Ref.No.Part No. Description123456789101112131415161718192021222324252627****4831

68RSection 8ELECTRICAL SCHEMATIC (KOHLER 31HP - EFI)RELAYMODULEPLUGPOSNEGPTOSWITCHKEYSWITCHCLUTCHHOURMETERGROUNDR.H. NEUTRALSWITCH20 AMP FUSEBRAKEINTE

LIMITED WARRANTY - COMMERCIAL EQUIPMENTAny part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgmen

© 2012Scag Power EquipmentDivision of Metalcraft of Mayville, Inc.

4RSection 2If the operator(s) or mechanic(s) cannot read English 7. or Spanish, it is the owner's responsibility to explain this material to them

5RSection 2Stay two cut widths away from slopes, drop offs, 3. ditches and retaining walls.To prevent tipping or loss of control, start and stop 4. sm