1705 Twin RowPlanter

Upforce / Downforce spring systems

Planter row-unit downforce is an important factor to ensure consistent and proper depth control. Downforce systems are used to keep the planting units from bouncing on rough seedbeds and to improve planter penetration in heavy residue and harder soil conditions. The amount of downforce required is determined by how the planter is equipped and the field conditions in which the planter is used.

Non-adjustable springs can also be used to apply upforce on the row-units. Upforce can be achieved by changing the orientation of the spring on the parallel arms. This upforce can be used to counteract excess

row-unit margin or extra weight cause by seed, tillage, or other attachments on the row-unit. Upforce springs will limit the maximum amount of downforce that can be place on a row-unit by the downforce system and should only be used in conditions were adequate and consistent depth control is easily maintained.

Non-adjustable springs in the upforce or downforce position can also be used to counteract variances in row to row. When used in conjunction with the pneumatic downforce system, non-adjustable springs can be used to provide a more consistent row-unit margin on each row by compensating for inconsistencies such as tire tracks, different row-unit tillage attachments, and other various attachments.

Non-adjustable springs

Non-adjustable springs, row-unit upforce

A single set of springs apply approximately 90 lb of upforce / downforce per row. Two sets of springs can be used for 180 lb of force per row.

Non-adjustable downforce springs are recommended for use in conventional tilled soil for planting speeds over 5 mph and/or in rough-tilled seedbed conditions. Non-adjustable springs can be used with tillage attachments in lighter, conventional tilled soils. (Not recommended for use with unit- or frame-mounted coulter.)

Dual upforce springs 1700 TR

Adjustable heavy-duty springs

Adjustable, heavy-duty downforce springs

Adjustable, heavy-duty downforce can be used to apply 0 lb to 400 lb of downforce per row and has four settings: 0 lb, 125 lb, 250 lb, and 400 lb. The adjustable, heavy-duty downforce system can be used in all planting conditions and is compatible with all tillage attachments (recommended with unit-mounted coulter, row cleaners, and unit-mounted double-disk fertilizer openers in conservation planting conditions).

NOTE: Compatible with all MaxEmerge™ Plus  planters. Vacuum planters built prior to June 1992 require updated manifold brackets (A52970) to eliminate adjustment interference.