Section 2: Operating Instructions
4/5/19
AP-SRF2772, AP-SRF2790, AP-SR2772, & AP-SR2790 Powered Rakes 321-120MK
22
Operating Speed
Once at the site, idle the loader engine, engage auxiliary
hydraulics, and then increase engine speed until the
powered rake is at operating speed. Operating speed
should not exceed maximum hydraulic flow requirements
listed in specification table on page 30. Begin traveling
forward while gently lowering the running Powered Rake
to the ground. Make slight changes to the loader’s ground
speed as you travel forward to determine the desired
ground finish. Generally, a slower speed results in a finer
finish, while a higher speed results in a coarser finish.
Excessive ground speed may result in dirt or material
passing over the top of the material control blade or too
much material being windrowed off to the side. Powered
Rakes do not perform well in wet sticky soil and making
sharp turns when in contact with the ground.
Level Powered Rake
The Powered Rake should also be set to operate level left
to right. It has a tendency to go in deeper on the
chaincase side (left side) because that is the heavier
side. Compensate for this by changing the C-spacers on
the right gauge wheel so that it is set to work ground
approximately 1" deeper than the left gauge wheel.
Level rake frame from front to back by rotating the hitch
plate with skid steer tilt arms.
Working Depth
Set working depth at the caster gauge wheels and not
with the loader arms. Normally a 1" cultivation depth is
considered ideal for a surface finish. Make adjustments
to the working depth if too many rocks or excessive debris
pass under the roller by changing the C-spacers on the
gauge wheel spindles. Increase working depth by moving
the spacers from below the support arms to above the
support arms. Decrease working depth by moving the
spacers from above the gauge wheel support arms to
below the support arms. Apply down pressure on the
rake roller when needed with the skid steer loader arms.
Powered Rakes with the optional Angle/Float Hitch must
have the arms locked to apply down pressure.
Material Control Blades
The hydraulic driven roller rotates in both directions for
traveling both forward and backward. You can vary the
effect on the surface finish by adjusting the front material
control blade when traveling forward and rear material
control blade when traveling backward.
The material control blade sifts out clods, rocks, and
other debris as the soil passes over the top of the roller.
Adjusting the blade down decreases the gap between
blade and roller and will sift out more objects for a finer
soil finish. Adjusting the blade up allows more clods,
rocks, and debris to pass over the roller and produces a
coarser soil finish.
Rake Angle (SR27 Series Only)
Normal operating rake angle is 15 degrees left or right.
However, you may want to make adjustments to the rake
angle to achieve varying effects on the surface finish. Set
rake angle at 0 degrees to gather rocks and debris in front
of the roller for the purpose of filling in low spots and
depressions with rocks and debris.
Final Inspection
After you have traveled 50 feet, properly shut down the
skid loader and Powered Rake to inspect the finish and
determine what, if any, additional adjustments need to be
made. Check for any foreign objects that may be
wrapped around the roller or lodged between the studs.
Remember that the right finish is achieved through a
combination of proper soil moisture conditions, operating
depth, ground speed, material control blade opening and
roller angle. Your Powered Raking capabilities will
improve rapidly with experience.
