CONTINUITY DIAGRAM

Model 992077, 078, 079, 080, 081, 082, 310, 311

The diagrams below show the various states of connection for electrical components.

The solid lines on switches show continuity.

NOTE: All switches are viewed from the rear.

Key Switch

 

 

 

 

 

 

 

 

 

 

 

Seat Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

(09089700)

 

 

 

 

 

 

 

 

 

 

 

(045036)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

A

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S2

 

 

 

 

S2

 

 

 

 

S2

 

 

1

 

2

 

 

 

 

1

2

 

 

B

 

 

S1

B

 

 

 

S1

B

 

 

 

 

 

S1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M

 

G

 

M

 

G

 

M G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

RUN

 

 

START

OPERATOR

OPERATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF SEAT

 

 

ON SEAT

PTO Switch

 

 

 

 

 

 

 

 

 

 

 

Relay

 

 

 

 

 

 

 

 

 

 

(01545600)

3

 

9

 

3

 

9

 

(040216)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

87

 

 

 

 

87

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

86

87A

 

85

 

86

87A

85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

4

7

 

4

1

7

 

 

 

30

 

 

 

 

 

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISENGAGED

 

ENGAGED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOT ENERGIZED

 

ENERGIZED

 

(down position)

(up position)

 

Brake Switch

(03657100)

1 2

1 2

BUTTON IN

BUTTON OUT

PD3840

21

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Image 21
Gravely 992080 23HP-160Z, 992310 19HP-144Z, 992311 21HP-148Z, 992079 23HP-152Z, 992081 25HP-152Z manual Continuity Diagram

992078 21HP-148Z, 992082 25HP-160Z, 992080 23HP-160Z, 992077 19HP-144Z, 992081 25HP-152Z specifications

Gravely has established itself as a leading name in the lawn care and landscaping equipment industry. Among its esteemed lineup, the Gravely models 992310, 992311, 992079, 992081, and 992077 are notable for their powerful engines and robust design.

The Gravely 992310 features a 19HP engine that strikes a balance between power and efficiency. Designed for residential users and small-scale landscaping applications, this model offers a cutting width that allows for efficient mowing of medium to large lawns. Its compact design ensures maneuverability, making it easy to navigate around obstacles like trees and flower beds.

In contrast, the Gravely 992311 boasts a slightly more powerful 21HP engine. This model is well-suited for both residential and commercial use, providing enhanced torque and performance under load. The ergonomically designed control panel allows for easy operation, while the advanced cutting deck technology ensures an even cut and reduced clumping.

The Gravely 992079 takes power up a notch with its 23HP engine. This model is engineered for heavy-duty applications, capable of handling tough terrain and thick grass with ease. It features an adjustable cutting deck, allowing users to customize the mowing height according to their needs. The added durability of the frame and components makes it ideal for frequent use.

Moving to the Gravely 992081, this model ramps up the horsepower to 25HP. It is designed for professional landscapers who require high performance and reliability. The enhanced cooling system protects the engine from overheating during extended use, while the larger fuel tank ensures that users can work longer without constant refueling.

Lastly, the Gravely 992077 comes equipped with a 19HP engine. This model strikes an excellent compromise between size, power, and functionality. With its user-friendly features and robust construction, the 992077 is perfect for homeowners looking for a reliable machine that can efficiently manage their lawn care needs.

Across these models, Gravely emphasizes quality with advanced technologies such as hydrostatic transmissions for smooth operation and enhanced control, and innovative cutting systems for improved grass handling. The brand also prioritizes comfort, featuring adjustable seats and intuitive controls for a better user experience. With their impressive power and functionality, these Gravely models cater to varying needs in the landscaping segment, making them valuable investments for both casual users and professionals alike.