Product Manual

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2. Be sure to reduce tractor ground speed when turning; and, leave enough clearance so that the
scarifier does not contact obstacles such as buildings, trees, or fences.
3. Select a safe ground travel speed when transporting from one area to another. When traveling on
roadways, transport in such a way that faster moving vehicles may pass you safely.
4. When traveling over rough or hilly terrain, shift the tractor to a lower gear.
Operating
General Operating Instructions
Before using the scarifier, it is very important that you read through this entire Operator’s Manual. The
51440 and 51441 Landscape Scarifiers are designed for piggyback attachment and simultaneous use
of the Series Landscape Rakes or Series Rear Blades. This dual capability makes it very important
that you understand how to properly adjust your scarifier shanks for proper simultaneous use with
either a rake or a blade. This information is found on the following page under Shank Settings.
Scarifier Used Alone
It is not absolutely necessary that another attachment be used in unison with the scarifier. Scarifying
alone is usually done to loosen the soil profile for planting of trees or to increase soil percolation in
order to eliminate standing water problems. When using the scarifier alone, you should be able to rip
and loosen soil to the depth you can sink the shank tips and still maintain forward pulling momentum.
The more compacted the soil, the more horsepower it will take to get the job done. In any case, you
will want to use a lower gear selection and you may need to make more than one pass. Progressive
lengthening of the shanks and multiple passes may be required to achieve the maximum depth.
Scarifier Used With a Landscape Rake
Using your Scarifier in tandem with a landscape rake is a good combination for removing 1" to 4"
sized rocks that have become imbedded in the topsoil. Set the rake angle to move the loosened rocks
to the desired side. Set the scarifier shank tips to an appropriate depth below the bottom of the rake
teeth. See the Shank Settings section, below. As you travel forward loosening the ground, the rake
should separate the rocks and roll them off to the side. If the soil is breaking into clumps that are too
large, raise the scarifier shanks and continue.
Scarifier Used with a Grade Blade
Using a rear blade in tandem with a scarifier is a combination tool for totally renovating or modifying
the soil profile. When you want to change the grade of a certain area, set the rear blade at the
appropriate angle and set the shank tips to your choice of working depth below the blade. (See the
Shank Settings section below.) As you travel forward loosening the soil, the rear blade will redistribute
the dirt to the side you have chosen with your blade angle setting. If the soil is breaking into clumps
larger than you want, raise the shank tips until you achieve the desired working consistency.
Adjustments
Shank Settings
It is very important to understand how to properly adjust the scarifier shanks when working this unit
simultaneously with either the Landscape Rake or Grade Blade.
1. Remove the hairpin (#6) and the shank lock pin (#5).
2. Adjust each shank up or down to the desired hole location.
3. Reinsert the shank lock pin (#5) and secure it in place with the hair pin (#6).
Learning to Use the Equipment
If you allow yourself enough practice, you will be able to efficiently create the different attachment
combinations and adjustments in a very short amount of time.