Traction Drive Group

REF NO

PART NO.

QTY. DESCRIPTION

1

1930601SM

3

SCREW, 5/16-18 x 5/8" Hex Washer Self-Tap

2

1673994A

1

BRACKET, Bushing

3

7091302SM

1

NUT, 3/8-16 Hex, GR 5 or B

4

1916965SM

1

WASHER, 3/8" Split Lock

5

1669256SM

1

ASSEMBLY, Shift Arm w/Bushing

6

1666114SM

1

BUSHING, Spacer, .380 ID x .750 OD x 1.030 Long

7

1924940SM

1

WASHER, 3/8" SAE Flat

8

1923701SM

1

SCREW, 3/8-16 x 2" Hex Head Cap, GR 5

9

1925205SM

4

SCREW, 5/16-18 x 5/8" Hex Head Cap, GR 5

10

1705897SM

2

BALL BEARING, .669 ID x .574 OD

11

1667341SM

2

RETAINER, Bearing

12

1917356SM

4

LOCKWASHER, 5/16" Spring

13

1917372SM

7

NUT, 5/16-18 Hex, GR B or 5

14

7072432SM

1

HEX SHAFT

15

2827794SM

1

RING, External Retaining (for 3/4 Dia Shaft)

16

1921332SM

3

SCREW, 5/16-18 x 3/4" Hex Head Cap

17

7010765SM

1

DRIVEN DISC

18

1665995SM

1

HUB, Friction Disc

19

1678956SM

2

COLLAR, Thrust

20

1666207SM

1

PIN, Slide

21

1724333SM

2

SET SCREW, 1/4-20 x 1/2 w/Patch Lock

22

1667335SM

1

COLLAR, Set, 1.251 ID x 2.00 OD x .50 Long

23

7072459SM

1

SPROCKET #35, 12 Tooth

24

1960353SM

1

WASHER, 1/4 ID x 5/8 OD x .134/.109 Flat

25

1916964SM

1

LOCKWASHER, 1/4" Spring

26

1923341SM

1

SCREW, 1/4-20 x 3/4" Hex Head Cap, GR 5

27

1729254SM

1

COLLAR, Set, .756 ID x 1.249 OD x .50

28

1928721SM

2

SET SCREW, 5/16-18 x 1/2" Square Head Cup Point

29

7072474SM

1

AXLE & SPROCKET ASSEMBLY

30

7072491SM

1

CHAIN, Roller, #35, 25.5" Long

31

1715101SM

1

BUSHING

32

1715253SM

1

PULLEY, Traction

33

1935048SM

2

NUT, 5/16-18 Large Head Center Lock

34

1665844SM

2

SPACER, .328 ID x .562 OD x .144/.149 Thick

35

1726778SM

1

ASSY, Pivot Plate/Hub w/Bearing

36

1925205SM

2

SCREW, 5/16-18 x 5/8 Hex Head Cap, GR 5

37

1666379SM

1

WASHER

38

2830672SM

1

KEY, Hi-Pro, .188 x .62

39

1719879SM

1

DRIVE DISC, w/ Spindle

40

1715131SM

1

ROD, Pivot

41

1918451SM

2

COTTER PIN, 1/8 x 3/4"

42

1919438SM

1

NUT, 5/16-18 Hex Nyloc Light

43

1919326SM

2

WASHER, .312 (.34 ID x .75 OD)

44

1700473SM

1

BELLCRANK

Footnotes

The above parts group applies to the following Mfg. Nos.:

1694587 - 555M

1694588 - 860E

1694595 - 555M

1694596 - 860M

Briggs and Stratton Yard Power Products Group

Copyright © 2008 by Briggs and Stratton Corporation21TP 400-4148-01-IW-SMilwaukee, WI, USA. All rights reserved

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Simplicity 555M, 860E, 860M manual HEX Shaft, Driven Disc, Axle & Sprocket Assembly, Bellcrank

860E, 860M, 555M specifications

Simplicity 555M, 860M, and 860E are advanced tractors designed for diverse agricultural applications. These models stand out for their combination of power, efficiency, and ease of use, making them ideal for both large-scale farming and smaller operations.

The Simplicity 555M is powered by a robust engine that provides dependable horsepower, allowing it to handle various tasks such as plowing, tilling, and hauling. Its compact size and efficient design make it suitable for navigating tight spaces on farms while still delivering the performance needed for heavy-duty jobs.

On the other hand, the 860M model enhances productivity with its advanced features. One of its key attributes is the high lifting capacity of its hydraulic system, which allows for increased versatility when working with different implements. The 860M also includes a state-of-the-art transmission system that ensures smooth gear transitions and optimum power management, enabling farmers to maximize fuel efficiency.

The 860E takes things a step further by integrating an array of modern technologies. This model is equipped with precision farming technologies that facilitate better data collection and analysis, resulting in improved decision-making. With features such as auto-steering and GPS guidance, the 860E helps farmers optimize their operations, reducing overlap and saving resources.

All three models prioritize operator comfort and safety. They feature ergonomic controls, spacious cabins, and excellent visibility to ensure a comfortable working environment, even during long hours in the field. Safety is also a significant consideration, with enhanced lighting systems and rollover protection, ensuring that operators can work confidently in various conditions.

In terms of maintenance, Simplicity tractors are designed for ease of servicing. Accessible components and clear maintenance guidelines help owners keep their machines in optimal working condition, minimizing downtime and repair costs.

In summary, the Simplicity 555M, 860M, and 860E tractors bring together power, efficiency, and advanced technology. Their robust construction and thoughtful features make them reliable partners in any agricultural operation, supporting farmers in achieving their productivity goals while ensuring a comfortable and safe working experience.