John Deere Upper Doffer Adjustment
Housing and Sprockets Assembly
Cotton-picking machines are critical to cotton harvesting. Multiple parts go with the machinery and each component. The upper doffer adjustment housing and sprocket assembly is a section that may have parts needing replacement. The chart linked here shows available parts making up the assembly. Tolerances are important when manufacturing components that function together in an assembly. Components for the upper doffer adjustment housing and sprockets assembly are no different.
Aftermarket parts are compared closely to the OEM style, and they fit the same. The only difference is the name brands are not the same. Dealers push to sell aftermarket products because they know people will buy more if it is more affordable. The farmers find they are less stressed during the peak of the harvest season because they know there will be little to no delays when waiting for parts to come in.
It takes the correct alignment on the shaft of the doffer. An efficient harvest depends on this, along with proper maintenance. When the parts go into the shop for repair, you can expect the mechanic to have all the tools necessary to put together the doffer assembly and grind the doffer’s surface.
Grinding the surface allows for maximum use. The mechanics will also check the abrasiveness so that the cotton is stripped from the spindles when they flow by. All adjustments are made, and everything is double-checked. Knowing the parts that were there when needed is the most extraordinary relief.
The Parts of the Upper Doffer
Adjustment Housing and Sprockets Assembly
When breakdowns occur, Certi-Pik, USA keeps the shelves well stocked. Our attention is placed on replacing individual pieces needing replacement in this assembly rather than forcing the customer into buying the whole assembly. Due to some customer requests we have made available an assembly of the fine doffer adjustment parts that were introduced with the CP770 Cotton Picker. This will allow a faster method to have all the parts ready to drop into place by simply removing one bolt, pulling out the old assembly and tightening in the new. When the part is ordered, it can be in the farmer’s hands the next day.
When it comes to the parts for the Fine Doffer Adjustment, we have made several notable improvements: A primary area of concern was the bottom Retainer Clutch. It was made with a longer hex to fully engage the plate to prevent premature slipping. All Bushings, Clutches, and Gears that were previously supplied by OEM as powdered metal have been made of steel to increased durability. Increasing the wall thickness of the top tube spacer was also taken into consideration for an increased wear surface. The Previously Aluminum Hex Spacer Busing is also now made of steel which also increases strength. We strive to partner with our customers to find solutions to help improve your part in cotton harvesting.
Certi-Pik, USA is widely called upon by dealers. When issues cause breakdowns, the farmer goes to the dealer or supplier and can get full service. The dealer knows the farmer appreciates the stores selling the parts so they can get machines back up in full operation. When parts of the upper doffer assembly go out, these are the parts to look up:
- Pro Upper Doffer Spacer
- Chain Sprocket
- Doffer Drive Link Chain, 62 Links, 12 Bar
- Doffer Drive Link Chain, 75 Links, 16 Bar
- In-Line Only Spur Gear 19-Tooth
- Hex Doffer Drive Shaft – (9900-9965)
- Pro Hex Doffer Drive
- 1/4 X 1-1/2 Spring Pin
- Pro 1/4 X 1-3/4 Spring Pin
- M10 x 30 Flange Bolt & M10 Serrated Nut
- M16 Flange Idler Nut
- Top Idler Washer 21/32” x 1-9/16” x .18”
- Idler Spur Gear 25 Tooth
- Snap Ring
- 7/8 Hex Nut
- M24 Pro Upper Doffer Adjustment Nut
- Upper Doffer Adjustment Housing
- Pro Upper Doffer Adjustment Housing
- Housing Shim
- Adjuster – (9900-9965)
- Pro Doffer Adjuster
- Upper Doffer Bearing
- In-Line Spacer
- Idler Bearing
- Idler Hex Spacer, Replaces N278451
- M16 x 70 Round Head Idler Bolt
- M10 x 20mm Round Head Bolt
More Parts Complimenting the Fine Doffer Adjustment Assembly
- Pro Upper Doffer Spacer
- Top Hex Bushing
- Spacer – Heavier Wall
- Spring Pin, 5/32” x 15/16”
- Hex Shaft – Heat Treated
- Top Hex-Bore Top Clutch – Heat Treated Steel For Increased Durability
- Bottom Round-Bore Retainer Clutch – Longer Hex For Full Plate Engagement – Heat Treated Steel For Increased Durability
- Plate – Front
- Plate – Rear
- Washer – 25 x 36 x 2mm
- Bushing – Stronger Steel Hex Spacer
- Spur Gear – 25 Tooth
- M10 x 50mm Flange Screw
- M30 Nylon Lock Nut
- Washer – 1-3/16” x 2-1/4” x .120”
- 20 Tooth Doffer Drive Spur Gear
- Snap Ring
- Bearing For Doffer Adjustment
- Adjuster Bearing Housing
- 53 Tooth Spur Gear – Steel For Increased Durability – Not Powdered Metal
- M6 x 16 Screw (3 rqd)
- Drive shaft
- ¼” Hardened Key
- 3/8 x 7/8” Spring Pin (3 rqd)
- Assembled Drive shaft – Ready To Install
- Cast Iron Housing
- M10 x 20 Flange Bolt
- Bearing Cap
Keeping Everything in Stock
The parts and accessories listed for the upper doffer adjustment housing and sprockets assembly are available in the Certi-Pik, USA warehouse’s inventory and are in stock. All the parts match the OEM, so there is no need for drilling and no worries about interchangeable parts that don’t fit. Pro and In-Line parts are in stock along with metal panels, other specialty parts like the CTX doors, and high-quality, cutting-edge parts. Hardware, accessories, springs, extensions, and scrapping plates are listed under the diagrams of small parts that make up each component.
Some importance should be place on making sure that all the equipment needed for harvesting is tested before the harvesting season begins. Any machine can break at any moment and shut down the harvesting operation. It doesn’t take much to stop the components from working correctly. One tiny piece can fail and stop the component from working or break it completely. Certi-Pik, USA keeps even the most minor pieces around and can have them ready in little to no time, so the farmer or the mechanic can fix the machinery and the farmer can continue the harvest.
Ordering from Certi-Pik, USA
Part numbers are essential when it comes to ordering them. Without the part number, there is a chance of delivering the wrong part because some look the same but are made for different locations. All it takes is to contact customer service with the part number. They can locate the part quickly and have it shipped the same day. In many cases, they can have it delivered the next day at the customer’s request.
John Deere Upper Doffer Adjustment Housing and Sprockets Assembly