Section 8

R

DECK DRIVE COMPONENTS

Ref.

Part No.

Description

No.

 

 

1423925 Belt Guard, Rear

2481531 Hinge, Belt Guard

3

481309

Latch, Hood

4

482845

Rod Assembly, Clutch Anti-Rotation

5

48030-09

Clamp, Cable

6461661 Clutch, Ogura GT-3.5

7482876 Belt, Deck Drive

8

483088

Spring, Transmission Idler

9

48181

Pulley, Idler 5” Dia.

10

481536

Tapered Hub, 1” Bore

11

482949

Pulley, 6.70” Tapered Bore

12481884 Tapered Hub, 17mm Bore

13483678 Belt, Pump Drive

14

483214

Pulley, Idler 4” Dia.

15

483675

Pulley, 5.367” Dia. - 1.125” Bore

16

43631

Spacer, Idler Bearing

17

04063-14

Key, 5.0 x 5.0 x 25mm

18

48224

Ball Bearing

19

481284

Bumper, Rubber

20

482744

Pulley, 5.75” O.D.

21

482667

Spring, PTO

22

461609

Idler Arm Weldment, PTO Drive

23

43632

Pivot, Idler PTO

24

461697

Spindle Assembly, Deck Drive

25

481035

Nut, 1.06-18 Thread

26

43297

Spindle Bushing, Bottom

27

481025

Seal, 2.0” O.D. x 1.625” Bore

28

481022

Roller Bearing Tapered

29

43312

Spacer, Outside

30

43296

Spacer, Inside

31

48114-04

Grease Fitting, 1/4-28

32

48677

Relief Fitting

33

43644

Spindle Housing

34

481022

Roller Bearing Tapered

35

481024

Seal, 2.0” O.D. x 1.5” Bore

36

43534

Shaft, Deck Drive

37

461608

Idler Arm Weldment, Pump Drive

38482438 Driveshaft (Liquid-Cooled Engine)

3904012-08 Set Screw, 3/8-16 x 3/4” Torx Socket

4004011-11 Screw, #10-32 x .56

4104041-07 Flatwasher, 3/8 (.391 x .938 x .105”)

4204069-01 Pin, Rue Cotter 3/8” Dia.

43

43507

Stud, Anti Rotation

44

461801

Pump Mounting Plate Weld. (Liquid-

 

 

Cooled)

45

04019-04

Nut, Serr. Flng. 3/8-16

Ref.

Part No.

Description

No.

 

 

4604019-02 Nut, Serr. Flng. 1/4-20

4704003-07 Bolt, Carriage 1/4-20 x 1/2”

4804021-22 Nut, Elastic Stop 5/16-18 Grd. 8

4904001-176 Bolt, Hex Hd. 5/16-18 x 1-3/4” Grd. 8

5004063-06 Key, 1/4 x 1/4 x 1-1/2”

5104001-171 Bolt, Hex Hd. 3/8-16 x 4-1/2” Grd. 8 Black

5204043-04 Washer, 3/8” Hardened

5304001-135 Bolt, Hex Hd. 3/8-16 x 1-3/4” Grd. 8 Black

5404001-136 Bolt, Hex Hd. 3/8-16 x 1-1/2” Grd. 8 Black

5504001-170 Bolt, Hex Hd. 3/8-16 x 2-1/2” Grd.8

5604021-05 Nut, Center Lock 3/8-16

5704001-136 Bolt, Hex Hd. 3/8-16 x 1-1/2” Grd. 8 Black

5804021-09 Nut, Elastic Stop 3/8-16

5904001-45 Bolt, Hex Hd. 3/8-16 x 2”

6004001-109 Bolt, Hex Hd. 1/4-20 x 1-3/8”

6104030-02 Lockwasher, 1/4” Spring

6204001-101 Bolt, Hex Hd. 7/16-20 x 2-1/2” UNF

6304030-05 Lockwasher, 7/16” Spring

6404041-28 Flatwasher, 7/16 (.469 x 1.75 x .25”)

6504001-172 Bolt, Hex Hd. 1/4-20 x 1” Grd. 8

6604001-21 Bolt, Hex Hd. 3/8-16 x 1-3/4”

6704019-03 Nut, Serr. Flng. 5/16-18

6804021-09 Nut, Elastic Stop 3/8-16

6904001-19 Bolt, Hex Hd. 3/8-16 x 1”

7004021-05 Nut, Center Lock 3/8-16

7104001-21 Bolt, Hex Hd. 3/8-16 x 1-3/4”

7204063-02 Key, 1/4 x 1/4 x 2-1/4”

7304063-20 Key, 1/4 x 1/4 x 1”

74

424138

Bracket

75

43063

Spacer

76

04001-19

Bolt, Hex Hd. 3/8-16 x 1”

53

Page 57
Image 57
Scag Power Equipment STT-31EFI-SS operating instructions Belt Guard, Rear Hinge, Belt Guard 481309 Latch, Hood 482845

STT-31EFI-SS specifications

Scag Power Equipment is renowned for producing high-quality commercial mowing equipment, and the STT-31EFI-SS stand-on mower is no exception. Designed with professional landscapers in mind, the STT-31EFI-SS offers a perfect blend of power, efficiency, and maneuverability.

One of the standout features of the STT-31EFI-SS is its 31 hp EFI (Electronic Fuel Injection) engine. This powerhouse engine not only delivers impressive power but also enhances fuel efficiency. The EFI technology ensures that the engine operates at optimal performance by automatically adjusting the air-to-fuel ratio under varying conditions. This results in smoother starts, improved throttle response, and reduced emissions, making the mower both environmentally friendly and cost-effective in the long run.

The STT-31EFI-SS features a durable construction built to withstand the rigors of commercial use. Its robust steel frame and heavy-duty components are designed for maximum longevity. Moreover, the mower is equipped with Scag's cutting-edge Hydro-Gear ZT-3400 transmission, which offers exceptional speed and agility. This transmission allows operators to navigate tight spaces with ease and provides a top speed of up to 10.5 mph, making it ideal for large properties or demanding mowing tasks.

Operator comfort is another key aspect of the STT-31EFI-SS. The stand-on design promotes better visibility and quick maneuverability, enabling operators to navigate obstacles with confidence. The padded operator platform and adjustable controls ensure a comfortable experience, even during extended use. Additionally, the mower’s low center of gravity enhances stability on slopes and uneven terrain.

One of the most notable characteristics of the STT-31EFI-SS is its advanced cutting deck. The mower features a 48", 52", or 61" Velocity Plus cutting deck, which is known for delivering a superior cut and impressive grass dispersal. The deck is engineered for optimal airflow, enabling precision mowing while preventing clumping. This technology ensures that grass clippings are evenly distributed, resulting in a healthier lawn appearance.

In conclusion, the Scag STT-31EFI-SS stand-on mower integrates powerful performance, innovative engineering, and comfort. Featuring a reliable EFI engine, robust construction, and exceptional maneuverability, this mower stands out as an excellent choice for professional landscapers seeking efficiency and reliability in their equipment.