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Table of Contents

SECTION 5 - TROUBLESHOOTING CUTTING CONDITIONS

20

SECTION 6 - ADJUSTMENTS

23

6.1 PARKING BRAKE ADJUSTMENT

23

6.2 TRAVEL ADJUSTMENTS

24

6.3 Throttle Control and Choke Adjustments

25

6.4 BELT ADJUSTMENT

25

6.5 BELT ALIGNMENT

26

6.6 CUTTER DECK ADJUSTMENTS

26

6.7 electric clutch adjustment

29

SECTION 7 - MAINTENANCE

30

7.1 Maintenance Chart - Recommended Service Intervals

30

7.2 Lubrication

31

7.3 Hydraulic System

33

7.4 Engine Oil

34

7.5 Engine Fuel System

34

7.6 Engine Air Cleaner

35

7.7 Battery

35

7.8 Drive Belts

36

7.9 Cutter Blades

37

7.10 Tires

38

7.11 Cutter Deck Gearbox

38

7.12 Body, Deck, And Upholstery

39

SECTION 8 - ILLUSTRATED PARTS LIST

40

8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES

40

52V CUTTER DECK

42

61V Cutter Deck

44

CUTTER DECK CONTROLS

46

SHEET METAL COMPONENTS

48

STT ROLL-OVER PROTECTION SYSTEM

50

STT SUSPENSION SEAT

52

DECK DRIVE COMPONENTS

54

ENGINE AND ATTACHING PARTS - KOHLER LP

56

BRAKE AND STEERING COMPONENTS

58

HYDRAULIC SYSTEM - KOHLER LP

60

LP SYSTEM - KOHLER

62

BDP-16A HYDRAULIC PUMP ASSEMBLY

64

ELECTRICAL SYSTEM - KOHLER LP

66

REPLACEMENT DECALS AND INFORMATION PLATES

68

ELECTRICAL SCHEMATIC - KOHLER LP

70

LIMITED WARRANTY - COMMERCIAL EQUIPMENT

Inside Back Cover

II

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Scag Power Equipment STT52V-25CH-LP, STT61V-25CH-LP Inside Back Cover, Troubleshooting Cutting Conditions Adjustments

STT61V-25CH-LP, STT52V-25CH-LP specifications

Scag Power Equipment has long been synonymous with durability and performance in the lawn care industry, and their STT52V-25CH-LP and STT61V-25CH-LP mowers exemplify this commitment. Both models are part of the Scag Turf Tiger II series, designed for commercial landscapers and serious homeowners who demand the best in cutting efficiency and reliability.

The STT52V-25CH-LP features a 52-inch cutting deck, while the STT61V-25CH-LP boasts a 61-inch deck, allowing users to choose according to the size of their lawn or landscape maintenance requirements. The decks are constructed from high-strength steel, ensuring longer life and resistance to wear from heavy use. The signature Velocity Plus deck design enhances airflow for superior cutting quality, resulting in cleaner cuts and better grass dispersal.

Powered by a robust 25 HP Kohler Command Pro engine, both models deliver the necessary power to tackle tough mowing jobs with ease. The engine's exceptional torque and performance ensure that even thick grass doesn't slow these machines down. Additionally, the Kohler engine is designed for improved fuel efficiency, helping operators save on fuel costs during long hours of operation.

One of the standout features of the STT52V-25CH-LP and STT61V-25CH-LP is their advanced hydrostatic transmission, providing smooth and responsive speed control. Operators can effortlessly adjust their speed and direction, making it easy to navigate tight spaces and uneven terrain. The ergonomic operator platform enhances comfort, with padded seats and adjustable armrests allowing for extended periods of mowing without fatigue.

Both models come equipped with a heavy-duty, commercial-grade transmission, capable of withstanding the rigors of daily use in demanding conditions. Additionally, they feature an intuitive control panel, allowing users to easily monitor important metrics, such as fuel levels and hour meters.

For added convenience, these mowers incorporate an easy-access maintenance design, allowing for quick inspections and routine servicing. With a focus on user-friendliness, Scag has ensured that operators can maintain their equipment with minimal downtime.

In summary, the STT52V-25CH-LP and STT61V-25CH-LP from Scag Power Equipment offer a compelling combination of power, performance, and user-friendly features. Ideal for commercial landscapers and serious gardening enthusiasts alike, these mowers stand ready to deliver exceptional results in any mowing environment.