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John Deere Combines 6620, Side Hill 6620, 7720, 8820. Hydraulic Operations and Tests - part 4

Section 350

SIDEHILL LEVELING SYSTEM OPERATIONS AND TESTS
CONTENTS OF THIS SECTION

GROUP 00 - SPECIFICATIONS AND SPECIAL TOOLS
GROUP 05 - GENERAL INFORMATION, DIAGNOSIS, AND TESTS

General Information ...................... 05-1

Diagnosing Malfunctions.................. 05-3

Electrical Tests..........................05-11

Hydraulic Tests.........................05-14

GROUP 10 - ELECTRICAL SYSTEM

GROUP 15 - HYDRAULIC SYSTEM

Group 00

SPECIFICATIONS AND SPECIAL TOOLS
SPECIFICATIONS

SPECIAL TOOLS

Group 05

GENERAL INFORMATION, DIAGNOSIS, AND TESTS
GENERAL INFORMATION

DIAGNOSING MALFUNCTIONS

ELECTRICAL MALFUNCTIONS

LEVELING
General Information

Two leveling cylinders (Fig 12) provide the hydraulic force necessary to level the combine. Each leveling cylinder is attached to the combine frame with trunnions. The rod of each leveling cylinder is attached to the final drive housing. When a leveling cylinder extends, it rotates the final drive housing down. When a leveling cylinder retracts, it rotates the final drive housing up.

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