Section 8

R

FUEL AND HYDRAULIC SYSTEM - KOHLER 31EFI

Ref.

Part No.

Description

No.

 

 

1

04110-01

U-Nut 1/4-20

248136-13 Hose Clamp, 0.69” Dia.

304001-03 Bolt, Hex Hd. 1/4-20 x 2.0”

4

48811

*** Hose, 3/8” I.D. Pushlock

548136-07 Clamp, Hose 1/2”

6481301-03 Elbow, 90 Degree - 1/4” NPT x 3/8” Hose

7482266-01 Elbow, 90 Degree - 9/16” O-ring x 3/8” Hose

8

48471-02

Oil Filter Base

9

482606

Hose Assy., 1/2” I.D. (Tank to Filter Base)

10

48059-01

Clamp, Fuel Hose 1/4” Hose I.D.

11

**

Fuel Filter, Kohler (p/n 24 050 03)

12

*483691

*** Fuel Hose, 5/16” I.D. Non-Perm.

13

481308

Valve, Shutoff

1448059-04 Clamp, Fuel Hose 5/16” Hose I.D.

15483620 *** Fuel Hose, 5/16” I.D. Non-Perm.

16483749 Hose Fitting w/Screen

17

48309

Bushing

1804001-09 Bolt, Hex Hd. 5/16-18 x 1.0” Zinc

1904019-03 Nut, Serr. Flng. 5/16-18

20

48758

Oil Filter

21

482483

Tee, 3/4 O-ring x JIC x 1/2” Hose

22

04021-08

Nut, Hex Elastic Stop 1/4-20

23

481164

Cap, Hydraulic Tank

24481507 Insert, Filler Neck

2548603-02 O-Ring

26

461451

Oil Reservoir Assembly (Incl. 24, 27, & 39)

27

482572

Elbow, 90 Degree .38” Hose

 

482571

Bushing, .56” Dia. Viton

28

48136-13

Hose Clamp, 0.69” Dia.

29

48811

*** Hose, 3/8” I.D., Pushlock

3004010-10 Screw, Phillips Head, 1/4-20

3148571-02 Cap

32

461586

Fuel Tank Assembly (Incl. 16, 17, 65, & 66)

33

48136-05

Clamp, Hose

3448350-02 Elbow, 90 Degree, 7/8-14 THD

3548938-02 Bushing, 7/8-14 JIC x 3/4-16 O-Ring

36

423701

Support Bracket, Fuel Tank

3704019-03 Nut, 5/16-18 Serr. Flng.

3804003-02 Bolt, Carriage 1/4-20 x 3/4”

39482574 Elbow, 90 Degree

 

482573

Bushing, .78” Dia. Viton

40

423513

Strap, Hydraulic Tank

41

423485

Support Bracket, Hydraulic Tank

42481611 Hose Assembly, Pump

4348572-04 Union, 3/4-16 JIC x 3/4-16 O-ring

4404001-59 Bolt, Hex Hd., 1/4-20 x 1-14”

4504030-02 Lockwasher, 1/4” Spring

Ref.

Part No.

Description

No.

 

 

46

04060-09

Roll Pin, Spring 3/16 x 3/4”

47

**

Fuel Pump, Kohler 31EFI (p/n 24 393 52)

48

48309

Bushing

49422694 Clamp Plate, Pump Control

50481793 Block, Pump Control

51483101 Pump, Left Hand, BDP-16A

5204021-09 Nut, Hex, Elastic Stop 3/8-16

5304001-32 Bolt, Hex Hd., 3/8-16 x 1-1/4

54483100 Pump, Right Hand, BDP 16A

55

482497

Cap, Fuel Tank w/Gauge

5604021-09 Nut, Hex Elastic Stop 3/8-16

5704043-04 Flatwasher, 3/8” (.391 x .938 x .105”) Grd. 8

58423524 Mounting Bracket - LH, Oil Cooler

423525 Mounting Bracket - RH, Oil Cooler

5904001-08 Bolt, Hex Hd. 5/16-18 x 3/4”

60

482505

Cooler, Oil

61

48136-13

Clamp, .69” Dia.

62

482703

Fitting, Hose

63

483617

*** Hose, 1/4” Fuel Line Non-Perm.

64

**

Regulator Assembly, Fuel Pressure

 

 

(p/n 24 403 16)

65

483699

Fuel Clamp, 5/16” Oetiker

66

482839-01

Shield, Flexible

*High Pressure Fuel Line. MUST only be replaced with the part number listed.

**Available through the individual engine manufacturer.

***Order by Inch.

59

Page 62 Page 64
Page 63
Image 63
Scag Power Equipment STT-31EFI-SS operating instructions 24 403
Page 62 Page 64

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.
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