Scag Power Equipment STT Operations Instructions

MODEL STT-31BSGOPERATOR’S MANUALTHIS MANUAL CONTAINS THE OPERATINGINSTRUCTIONS AND SAFETY INFORMA-TION FOR YOUR SCAG MOWER. READINGTHIS MANUAL CAN PR

6Section 22.4 OPERATION CONSIDERATIONS(CONT'D)3. To prevent tipping or loss of control, start and stopsmoothly, avoid unnecessary turns and trave

7Section 22.6 SAFETY AND INSTRUCTIONAL DECALSWARNINGINSTALL BELT COVER BEFOREOPERATING MACHINEREAD OPERATOR'S MANUAL481039390S0150C481568FORWARDR

8SPECIFICATIONSSection 3SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDERMODEL: STT– 31BSGENGINEGeneral Type: Heavy duty industrial/commercialBrand: Briggs Dai

9Section 3SPECIFICATIONS (CON'T)SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDERMODEL: STT– 31BSGCUTTER DECKType: SMST-72A ("Advantage") &

10Section 4OPERATING INSTRUCTIONSDo not attempt to operate this mower unless youhave read this manual. Learn the location andpurpose of all controls

11Section 45. Voltmeter (Figure 4-1). Indicates the condition ofthe charging system. When the engine is running, innormal operating conditions, the

12Section 44.3 INITIAL RUN-IN PROCEDURES (First Day of Use or Approximately 10 Hours)1. Check all belts for proper alignment and wear at 2, 4and

13Section 4To steer the mower left while traveling forward, pull theleft steering lever back. The further the lever is pulledback, the quicker the m

14Section 44. Always operate the engine at full throttle to properlymaintain cutting speed. If the engine starts to lugdown, reduce the forward speed

15Section 44.10 REMOVING CLOGGED MATERIAL1. If the discharge chute becomes clogged, shut off theengine and remove the ignition key. Using a stick ors

FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY.* Keep all shields in place, especially the grass discharge chute.* Before p

16Section 44.13 ADJUSTING CUTTING HEIGHTThe mower deck can be adjusted from a height of 1-inchto 6 inches at 1/4-inch intervals. To adjust the cutting

Section 517Stringers - Occasional Low engine RPM Run engine at full RPMBlades of UncutGrass Ground speed too fast Slow speed to adjust for conditionsW

Section 518Uneven Cut on Flat Lift worn from blade Replace bladeGround - WavyHigh-Low Blade upside down Mount with cutting edge towardAppearance, grou

Section 519Scalping - Blades Low tire pressures Check and adjust pressuresHitting Dirt orCutting Very Close to Ground speed too fast Slow speed to adj

Section 620ADJUSTMENTS6.1 PARKING BRAKE ADJUSTMENTWARNING:Do not operate the mower if the parking brake isnot operable. Possible severe injury could

Section 621B. The steering control levers are in the full forwardposition and the mower pulls to one side or theother when traveling in a forward dire

Section 622Tracking AdjustmentStop the engine and remove the key from theignition before making any adjustments. Wait forall moving parts to come to

Section 6236.6 CUTTER DECK ADJUSTMENTSCutter deck level, pitch and height are set at the factory.However, if these adjustments should ever need to bem

Section 624Cutter Deck HeightThe cutter deck height adjustment is made to ensure thatthe cutter deck is cutting at the height indicated on thecutting

Section 6252002 CCBMOUNTINGHARDWAREMOUNTINGHARDWAREFigure 6-8. Custom Cut Baffle3. Move the Custom-Cut Baffle to desired position.(See Figures 6.9 thr

ITABLE OF CONTENTSSUBJECT PAGE Section 1 - General Information1.1 Introduction ...

26Section 7 MAINTENANCE7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS* Perform these maintenance procedures more frequently under extreme dust

Section 727+ Compatible Greases: Mobilix #2 found at Mobil Service StationsRonex MP found at Exxon Service StationsSuper Lube MEP #2 & Super Stay-

28Section 7Figure 7.1 Lubrication Fitting PointsGREASE FITTING LUBRICATIONLUBRICANT / INTERVALLITHIUM MP WHITE GREASE 2125( 40 HOURS / WEEKLY )CHASSIS

Section 7297.3 HYDRAULIC SYSTEMA. Checking Hydraulic Oil LevelThe hydraulic oil level should be checked after the first10 hours of operation. Thereaft

30Section 7A. Checking Engine Crankcase Oil LevelThe engine oil level should be checked after every 8 hoursof operation or daily as instructed in the

Section 7317.5 ENGINE FUEL SYSTEMA. Filling the Fuel TankFill the fuel tank at the beginning of each operating day towithin 1 inch below the filler ne

32Section 7Electric storage battery fluid containssulfuric acid which is POISON and cancause SEVERE CHEMICAL BURNS. Avoidcontact of fluid with eyes,

Section 733WARNING:BATTERIES PRODUCE EXPLOSIVEGASES. Charge the battery in a wellventilated space so gases produced whilecharging can dissipate.Chargi

34Section 7Figure 7-9 Blade Sharpening2. Check the balance of the blade. If the blades are outof balance, vibration and premature wear can occur.See

Section 735The cutter deck gearbox can reach highoperating temperatures. Allow the cutter deckgearbox to cool before servicing.CAUTION:7.11 CUTTER DE

IITABLE OF CONTENTS (CONT'D)SUBJECT PAGESection 6 - Adjustments6.1 Parking Brake Adjustment ...

36Section 73. Replace the radiator cap. Push down on the cap andturn clockwise until it stops.-NOTE-The cooling system should be flushed andthe coola

37NOTES

3861A, 72A CUTTER DECKS44 61 63696212656452585417592414562856333AABB414 29 20532852245824526632136855552958231323573115013466049672435489161915272612

39Ref. PartNo. No. DescriptionRef. PartNo. No. Description42 43297 Spindle Bushing, Bottom43 481035 Nut, Special 1 - 1/16-1844 48114-04 Grease Fitting

40CUTTER DECK CONTROLSSTT2002CDC21193742461410 4252335234138323430727334041282824 264140CUTTER DECK134039314140394398452018361644174140261129224041152

41CUTTER DECK CONTROLSRef. PartNo. No. Description1 04041-07 Flatwasher, 3/8”2 481764 Link, Deck Lift3 481765 Rod End, Female - 1/2-20 RH4 481766 Rod

42SHEET METAL COMPONENTSSTT-BSG 2002 SMC464847481550263025121519912324A31323334293336374039384142435535441527225420281514131211101617A2053487181856575

43SHEET METAL COMPONENTSRef. PartNo. No. Description1 451481 Fender Weldment, RH2 04001-09 Bolt, Hex Head, 5/16-18 x 1, Zinc3 43606 Spacer4 04041-07 F

44 DECK DRIVE COMPONENTSATo ABTo BTOREAROFENGINETOENGINEFLYWHEEL12345678941011121314151617181920212222232424252526272728293031323334353637384240413943

451 422845 Belt Guard, Rear2 481531 Hinge, Rear Belt Guard3 481309 Latch, Hood4 04003-07 Carr. Bolt 1/4-20 x .5”5 04019-02 Nut, Serr. Flg. 1/4-206 040

1GENERAL INFORMATION1.1 INTRODUCTIONYour mower was built to the highest standards in theindustry. However, the prolonged life and maximumefficiency o

46RADIATOR, COOLERS & ENGINE BRACKETSTO "A"AATTACHESTOFRAME17222112131529151110106720191414318161682324252627282930313234352626363726263

471 481810 Radiator2 481742 Hose, Upper Radiator3 481743 Hose, Lower Radiator4 04030-03 Lockwasher, 5/16 (.317 x .586 x .078) Helical Spring5 423628 B

48 BRAKE AND STEERING COMPONENTSSTT2002B&SCA12101133179192341112134365773484746523534243 44 451556706971621565606467605241342351503435TO RH PUMPTO

491 482340 Grip, Handle Bar2 461386 Handle Bar (Includes item 1)3 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4"4 04030-04 Lockwasher, 3/8"5 04041-

50 FUEL AND HYDRAULIC SYSTEMDDDEFCIHGGFEAABCDUMP VALVEB2002 STT-BSG F&HS.epsIHTo Carburetor39131415232426401617323637Z342535213133930305756547 443

51 FUEL AND HYDRAULIC SYSTEM1 04110-01 U-Nut 1/4-202 48136-13 Hose Clamp, 0.69 dia.3 04001-03 Bolt, Hex Head 1/4-20 x 2.0”4 48811 Hose, 3/8” ID Pushlo

52ELECTRICAL SYSTEMBACCBA12345677891011121314151617181920212223 22212020202425242524252622212221272712192829303132333435363637DD1938ELECTRICAL

531 481176-08 Cable, Positive Battery2 481176-07 Cable, Negative Battery3 461467 Clutch, Electric PTO4 481808 Module, Interlock5 482283 Battery (Not A

54HYDRAULIC PUMP ASSEMBLYSTT 2K BDP-2111491121210687185141719202221232416252628273Overhaul Seal Kit13251315HYDRAULIC PUMP ASSEMBLY - BDP-21L

551 HG 2510065 Housing Kit (Includes Housing, Journal Bearing)2 HG 2510066 End Cap3 HG 50641 Straight Headless Pin4 HG 50633 Socket Head Screw5 HG 503

2CE MarkTransmissionChokeOn/StartSpring Tension on IdlerOilOff/StopSYMBOL DESCRIPTIONSYMBOL DESCRIPTIONISO SymbolsSpinning Blade48071SParking BrakeWAR

56REDREDBLUEBLKREDREDPINKORGBRNPINKREDREDBLUEBLKREDREDREDORGLT BLUEBRNLT BLUEWHITE W/REDGRN W/BLKGRN W/WHITEGRNREDREDBLKBLKREDREDREDREDREDREDORGBRNBLK

57REPLACEMENT DECALS AND INFORMATION PLATES482285482286481955 - 61A481956 - 71A4865648404481568482290481039482507482565482580481971WARNINGINSTALL BELT

58REPLACEMENT DECALS AND INFORMATION PLATES481921R481921STT-31BSG Decals 24819254816644816634827104816634816644819214819374831448825482165

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

PART NO. 03121PRINTED 7/02PRINTED IN USA© 2002SCAG POWER EQUIPMENTDIVISION OF METALCRAFT OF MAYVILLE, INC.

3SlowFastCutting Element - EngageCutting Element - Basic symbolCutting Element - DisengageContinuously Variable - LinearRead Operator's ManualKee

4SAFETY INFORMATIONThis symbol means “Attention! Become Alert! YourSafety is Involved!" The symbol is used with thefollowing signal words to

510. DO NOT add fuel to a running or hot engine. Allowthe engine to cool for several minutes before addingfuel.11. Keep flammable objects (cigarettes