Operator's Manual

16
OPERATION
ADJUST TINE DEPTH
To adjust the working depth of the tine proceed as
follows;
1. Remove the lynch pin from each depth adjust
handle (Fig. 18).
Figure 18
1
1. Depth adjustment handle
2. Turn the depth adjuster handles to raise (deeper)
or lower (shallow) the roller.
NOTE: Make sure that the roller is on the ground once
the depth is chosen.
3. Depth guides (Fig. 19) are provided with numbers
1 thru 27. Depth varies with the mounted angle of
aerator, tine type and amount of tine wear. Refer to
Depth Chart on page 16. Adjustment between two
numbers will give approximately .20 inches (5 mm)
change in depth. The higher the number, the deeper
the tine penetration. Always adjust each side to the
same number.
Figure 19
1
1. Depth guide
IMPORTANT: If a large change in height is required,
adjust each leg by a small amount to ensure the roller
legs are adjusted as evenly as possible.
NOTE: Remember when depth changes are made,
you will need to adjust the top link length to give the
correct machine angle. Refer to Connect Upper Link,
page 8.
IMPORTANT: Tine depth is affected by the mounted
angle of the aerator as well as the depth setting. If the
aerator is angled rearward, the tine heads may contact
the turf guards and damage may occur. Depths 26 & 27
cannot be used when the aerator is in the vertical
position. See Depth Chart, page 17.
4. Install the depth adjust handle lynch pins before
running the machine, even if you are just testing for
correct depth.
IMPORTANT: Tine depth is determined by the tine
type, depth adjustment and mounted angle of the
aerator. Refer to Depth Chart on page 17.
Maximum depth is achieved when the aerator is
mounted vertically (Fig. 20) and the depth adjustment
set at 25. In this condition, do not operate at greater
depth settings, as there is minimal clearance between
the tine head and the turf guards. Never operate with
the aerator angled rearward or damage to the turf
guards may occur.
Figure 20
90
In some instances, angling the aerator forward may
improve hole quality but will also reduce aeration depth
and gain clearance with the turf guards. A forward
angle of approximately 4 is a good initial setting. Use a
magnetic based angle indicator to determine the
forward angle, or use the following procedure:
A. Position aerator on a flat level surface.
B. Make sure aerator roller is on the ground and
depth indicator is set at desired setting.
C. Measure and record the distance from the
ground to the lower rear corner of the frame (H1")
and front corner of the frame (H2") (Fig. 21).
D. Adjust upper link until the difference between
H1"-H2" matches desired forward angle of
aerator (See Angle Chart below).
H1"-
H2"
0" 0.8"
(21mm)
1.7"
(43mm)
2.5"
(64mm)
3.3"
(85mm)
Angle 0
2 4 6 8