Scag Power Equipment STT-29DFI, STT61V-35BVAC, STT61V-29DFI-LE, STT-35BVAC STT Hydraulic System

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Section 8

STT HYDRAULIC SYSTEM

1

3

 

DUMP

7

 

 

 

5 VALVE

 

 

 

 

 

 

 

7

 

 

D

 

4

 

 

 

11

 

 

 

B

 

 

 

12

 

 

 

43 (2)

13

 

7

 

 

5

 

D

7

 

16

 

4

5

 

 

 

15

27

 

4

 

4

A

 

32

28

 

 

14

 

43 (2)

 

46

 

 

29

 

C

 

 

30

42

 

44 45 17

 

 

E

 

 

B

 

 

 

4

 

A

 

 

 

 

H

I

5

4

 

22

34

 

 

41

 

6

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

35

 

 

 

 

 

18 8

20

19

22

38

Z

E

D 2

23 24 26 40

30

F

30

39

 

33

9

G

G

H I

21

31

34 25 35

36

 

 

10

2

F

37

 

 

 

C

2011 STT HS.eps

64

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator STT-35BVACTable of Contents Troubleshooting Cutting Conditions Adjustments Limited Warranty Commercial Equipment Table of Contents Direction Reference IntroductionServicing The Engine And Drive Train Components Symbols Symbol DescriptionSafety Information Operation Considerations Section ROLL-OVER Protection System Seat Belt Inspection Spark Ignition System Forward Reverse Engine ElectricalPower Head Cutter DeckProductivity 52V 61V Weights And Dimensions 52V 61VHydraulic System 72VSOperating Instructions Controls And Instrument IdentificationSafety Interlock System Dump Valve ControlGround Travel And Steering Initial Run-In ProceduresStarting The Engine Forward TravelEngaging The Deck Drive Cutter Blades Reverse TravelAfter Operation Rotating BladesHillside Operation Parking The MowerMoving Mower With Engine Stopped Adjusting Cutting HeightRecommendations For Mowing Adjusting The Steering Levers Adjusting The Height Adjust PedalTowing Optional Hitch Accessory Troubleshooting Cutting Conditions Condition Cause CureTroubleshooting Cutting Conditions Contd Cut, or Rough ContourScalping Blades Hitting Adjustments Parking Brake AdjustmentTravel Adjustments Neutral AdjustmentBelt Adjustment Throttle Control And Choke AdjustmentsTracking Adjustment Cutter Deck Level Cutter Deck AdjustmentsBelt Alignment Cutter Deck PitchCustom-Cut Baffle Adjustment Cutter Deck HeightPosition Custom-Cut Baffle Adjustment Electric clutch adjustment 10. Clutch Air Gap AdjustmentMaintenance Maintenance Chart Recommended Service IntervalsMaintenance Chart Recommended Service Intervals Contd LubricationLubrication Fitting Points Checking Hydraulic Oil Level Changing Hydraulic OilEngine Oil Engine Fuel SystemCleaning and/or Replacing Air Cleaner Element Engine Air CleanerReplacing In-Line Fuel Filter Elements Battery Charging the BatteryJump Starting Drive BeltsCutter Blades Blade InspectionBlade Replacement TiresCutter Deck Gearbox Cooling SystemBody, Deck, And Upholstery Cleaning the Radiator Debris ScreenChecking The Fan Belt Tension Liquid- Cooled Engines Only Section Illustrated Parts List Scag Approved Attachments And AccessoriesSection 52V Cutter Deck Description61V & 72VS Cutter Decks Description Cutter Deck Controls Cutter Deck Controls Sheet Metal Components 9278 STT ROLL-OVER Protection System STT ROLL-OVER Protection System STT Suspension Seat Section Deck Drive Components 35BVAC Engine and Attaching Parts Kohler Available through the individual engine manufacturer Engine & Attaching Parts 27HP, 29DFI Kawasaki & 35BVAC Engine & Attaching Parts 27HP, 29DFI Kawasaki & 35BVAC Brake and Steering Components Bolt, Carriage 5/16-18 x STT Hydraulic System Base Fuel STT Fuel System EPA Phase Models produced prior to 1/1/2011STT Fuel System EPA Phase 3 models produced after 1/1/2011 STT Fuel System EPA Phase STT FS Carb Teir 3 Rev2.eps STT-LE Fuel System C.A.R.B. Tier BDP-16A Hydraulic Pump Assembly BDP-16A Hydraulic Pump Assembly Port a Side Hex Screw, Flanged Head M10 x 1.50-65mm Section Electrical System Kohler & Briggs & Stratton Instrument Panel, Top w/Decals Electrical System 27HP Kawasaki Electrical System 27HP Kawasaki Electrical System 29DFI Kawasaki Electrical System 29DFI Kawasaki Replacement Decals and Information Plates Heavy-Duty1617 STT Electrical Schematic Kohler STT Electrical Schematic 27HP Kawasaki EngineElectrical Schematic 29DFI Kawasaki RelaySection STT Electrical Schematic 35BVAC Briggs & Stratton Limited Warranty Commercial Equipment

STT-35BVAC, STT61V-29DFI-LE, STT61V-35BVAC, STT61V-29DFI, STT-29DFI specifications

Scag Power Equipment is renowned for its high-quality lawn care machinery, and among its range of products, the STT series stands out, particularly the STT-29DFI, STT61V-35BVAC, STT61V-29DFI, STT61V-29DFI-LE, and STT-35BVAC models. These zero-turn mowers are designed to deliver exceptional performance, durability, and efficiency, catering to both commercial landscapers and homeowners alike.

The STT-29DFI offers an impressive 29 horsepower, powered by a state-of-the-art EFI engine. This model boasts an advanced deck design, featuring a robust 61-inch cutting width that ensures a clean and even cut. The mower's zero-turn capability allows for enhanced maneuverability, making it easier to navigate around obstacles and achieve a professional finish.

In comparison, the STT61V-35BVAC takes power to the next level with a 35 horsepower engine. This model is perfect for tackling larger areas and more challenging terrains. The vacuum-assisted cutting system effectively collects clippings, reducing cleanup time after mowing. The heavy-duty, reinforced steel frame ensures long-lasting durability, while the comfortable operator seat and control system enhance user experience.

The STT61V-29DFI is another remarkable addition to this lineup, featuring a 29 horsepower engine equipped with EFI technology. This model focuses on fuel efficiency, allowing operators to maximize output while minimizing fuel consumption. With its 61-inch cutting deck, it provides an excellent balance between power and precision, ideal for both commercial and residential use.

For those looking for a more specialized option, the STT61V-29DFI-LE includes enhancements aimed at professional landscapers, such as a premium seat suspension system for extended comfort during long operating hours. This model also features a customizable control panel, making it easier for operators to tailor settings to their specific needs.

Lastly, the STT-35BVAC integrates a robust 35 horsepower engine, along with advanced features that promote efficiency and productivity. This model's design prioritizes user-friendly operation, with intuitive controls and easy access to maintenance points. The vacuum system further enhances its capabilities by collecting grass clippings and debris as you mow, ensuring a tidy lawn at all times.

In summary, Scag Power Equipment's STT series is characterized by powerful engine options, advanced cutting technologies, and a commitment to durability and operator comfort. Whether you choose the STT-29DFI, STT61V-35BVAC, STT61V-29DFI, STT61V-29DFI-LE, or STT-35BVAC, you can expect a mower that stands up to the demands of any lawn care task.
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