Setting depth is one of the most critical adjustments an operator will make to a seeding tool. John Deere understands every operator needs dependable, repeatable depth control that's easily adjustable. Not every producer agrees on how to make it. That is why John Deere provides a choice of two depth control options on the 1830 and 1835.
Mechanical depth shims are repeatable and reliable
Adjusting mechanical depth shims
Often-heard are comments from producers who say they prefer the positive mechanical depth control offered by the 1820. This popular concept is base equipment on the 1830 and 1835 air hoe drills.
Two indexed depth shim packs on the mainframe are not only easy to set, but reduce the number of adjustment sites over previous designs by up to 60 percent.
Less time adjusting means more time seeding.
TouchSet™ depth control
Changing field conditions such as moisture levels and soil types can make setting depth a challenge. TouchSet depth control makes adjusting depth in response to changing field conditions easy and profitable. On 8R and 9R Series tractors, the operator uses selective control valve (SCV) #1 and the SCV TouchSet control panel to perform all the depth control functions from the seat. Considering yield penalties of 5 percent due to seeding 2.5 cm (1 in.) too deep or too shallow, the convenience of in-cab adjustment pays nicely.
NOTE: Repeatability is +/- 6 mm (0.25 in.) to preset depth. If your seeding operation requires accuracy greater than +/- 6 mm (0.25 in.), the use of shim packs is recommended.
Remote position sensor Electrical connector
A remote position sensor (1) is located at the rear of the drill; electronically monitors the positions of the implement.
An electrical connector is used for easy hookup of TouchSet depth control sensor on the implement to the tractor system (8R Tractor illustrated).
For use with all 8R and 9R (or older models) Series John Deere tractors.
TouchSet depth control requires additional tractor parts for hookup; see appropriate tractor section in this Sales Manual.
Positive mechanical depth control
TouchSet depth control plus positive mechanical depth control
Positive mechanical depth control with active hydraulic down-pressure system for separate fertilizer placement (SFP)
TouchSet depth control and positive mechanical depth control with active hydraulic down-pressure system for SFP
Control arm CommandCenter™
How does it work? The operator uses the TouchSet (SCV setup panel) to set or change the operator depth.
With the implement nine-pin connector connected to the tractor, start the tractor; a P will appear in the window of the control panel under SCV #1.
The remote sensor located on the rockshaft monitors position of the implement.
After operating depth is measured at the ground engaging tool and the desired depth obtained, press the lower set button on the control panel. That depth is now set.
On-the-go depth changes can be made by touching the set button to select a new depth.
Implement raise height selection uses the upper set button on the control panel to preset the distance the implement is raised above the operating depth.
Preset the raise height to:
Take out wheel tracks on headlands
Limit raise height for waterway crossings
Manual depth override capacity