Owner's Manual
®
STOP
36" SPIKE AERATOR
DO NOT RETURN TO STORE
For Missing Parts or Assembly
Questions Call 1-866-576-8388
Model No. 486.243361
• Safety
CAUTION:
• Assembly
• Operation
• Maintenance
• Parts
Before using this product, read
this manual and follow all Safety
Rules and
Operating Instructions.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
PRINTED IN U.S.A.
FORM NO. 40505 (12/06)
HARDWARE PACKAGE CONTENTS
SHOWN ACUTAL SIZE
NOT SHOWN ACUTAL SIZE
J
H
I
A
F
B
C
D
E
K
L
M
G
Ref.
Qty.
Description
Ref.
Qty.
Description
H
I
J
K
L
M
11
6
2
2
1
Flanged Bearing
Spacer Tube, Long
Spacer Tube, Short
Spring
Hitch Pin
Hitch Arm Mount Bracket
A
B
C
D
E
F
4
12
2
2
2
Bolt, Carriage, 5/16" x 1"
Bolt, Hex, 5/16" x 3/4"
Bolt, Hex, 5/16" x 1-1/4"
Bolt, Hex, 5/16" x 2"
Spring Pin, 1/4" x 1-1/4"
Hair Cotter Pin
4
1
G
20
Nut, Nylock 5/16"
CARTON CONTENTS
3
1
4
5
2
6
5. Hitch Bracket (2)
6. Hitch Mount Arm (2)
Hardware Pack (Shown above)
1. End Plate (2)
2. Frame Angle (2)
3. Spike Disk (9)
4. Axle
3
ASSEMBLY
CAUTION: The spike disks have sharp
•
Carefully press or hammer a flanged bearing into
points. To avoid injury, use extra care when
handling the disks and when assembling
the aerator.
each spike disk from the side shown in figure 3.
TOOLS REQUIRED FOR ASSEMBLY
FLANGED
BEARING
(2) 1/2" open or boxed end wrench
(1) Hammer
Lay out and identify all parts and hardware as shown in
Carton Contents and Hardware Pack illustrations.
SPIKE DISK
•
Assemble the two frame angles (one with the bend
up and the other with the bend down) to the two end
plates using eight 5/16" x 3/4" hex bolts and eight
5/16" nylock nuts. Make sure that the frame is squared
up, and then tighten. See figure 1.
FIGURE 3
FRAME ANGLE
(BEND UP)
•
•
Insert the end of the axle through one of the end
plates. See figure 4.
Assemble onto the axle, in order, a short spacer, a
spike disk and a spring. See figure 4.
FRAME ANGLE
(BEND DOWN)
NOTE: All spike disks should face the same direction.
•
Next, starting with a spike disk, assemble seven spike
disks and six long spacers onto the axle. See figure 4.
5/16" x 3/4"
HEX BOLTS (8)
•
Finally, assemble a spring, a spike disk and a short
spacer onto the axle. Push the end of the axle through
the second end plate. See figure 4.
5/16" NYLOCK NUTS (8)
END PLATE (2)
FIGURE 1
(9) SPIKE DISKS
(2) SPRINGS
•
Using a hammer, drive a spring pin into a hole in the
(6) LONG
SPACERS
axle until the pin just extends through the other side
of the axle. Next, assemble a flanged bearing onto the
axle as shown. See figure 2.
(2) SHORT
SPACERS
SPRING PIN
FLANGED BEARING
FIGURE 2
FIGURE 4
4
•
Slide a flanged bearing onto the axle and push it into
the hole in the end plate. See figure 5.
•
Assemble the hitch mount arms to the outside of the
four hitch arm mount brackets as shown in figure 7.
Use four 5/16" x 1" carriage bolts and four 5/16" nylock
nuts. Do not tighten yet. See figure 7.
•
Drive a spring pin into the hole in the axle until the pin
just extends through the other side of the axle. The
spring pins secure the axle in the frame and should
also prevent the axle from rotating. See figure 5.
(4) HITCH ARM
MOUNT
(4) 5/16" x 1"
CARRIAGE BOLTS
BRACKETS
FLANGED
BEARING
(4) 5/16" NUTS
(NYLOCK)
SPRING PIN
HITCH MOUNT ARMS
FIGURE 5
FIGURE 7
•
•
Assemble the ends of the hitch mount arms together
using two 5/16" x 1-1/4" hex bolts and two 5/16"
nylock nuts as shown in figure 8. Do not tighten yet.
•
•
Attach two hitch arm mount brackets to the middle
holes in the rear frame angle using two 5/16" x 3/4"
hex bolts and two 5/16" nylock nuts. Do not tighten
completely. See figure 6.
Assemble the hitch brackets to the hitch mount arms
using two 5/16" x 2" hex bolts and two 5/16" nylock
nuts as shown in figure 8. Do not tighten yet.
Attach two hitch arm mount brackets to the middle
holes in the front frame angle using two 5/16" x 3/4"
hex bolts and two 5/16" nylock nuts. Do not tighten
completely. See figure 6
HITCH MOUNT ARMS
(2) 5/16" x 2"
HEX BOLTS
5/16" x 3/4"
HEX BOLT
HITCH ARM
MOUNT BRACKETS
(2) 5/16" NUTS
(NYLOCK)
5/16" x 3/4"
HEX BOLT
HITCH BRACKETS
REAR FRAME
ANGLE
(2) 5/16" NUTS
(NYLOCK)
(2) 5/16" x 1-1/4" HEX BOLTS
FIGURE 8
•
•
Tighten the bolts assembled in figure 6.
Tighten the bolts assembled in figure 7.
Tighten the bolts assembled in figure 8.
5/16" NUTS
(NYLOCK)
FRONT FRAME
ANGLE
Attach the aerator to your tractor using the hitch pin
and the hair cotter pin.
FIGURE 6
5
OPERATION
CAUTION: Spike disks have sharp
points. Exercise caution at all times when
using the aerator.
•
•
To prevent lawn damage, avoid sharp turns.
On sloped lawns aerate in up and down direction. DO
NOT aerate across the face of slopes.
•
To increase spike point depth penetration add weight
as required. The aerator frame holds up to three
concrete blocks at approximately 35 pounds each.
Weights can be secured to frame with straps or other
binding material. See figure 9.
BEFORE USING YOUR AERATOR
•
•
DO NOT attempt to aerate if ground is muddy.
If ground is extremely hard or dry, it is recommended
that it be watered down for 1 or 2 hours prior to use.
Mow lawn and remove loose clippings prior to use of
lawn aerator.
Attach the aerator to the tractor hitch and check to
see that the aerator is level. Adjust by loosening the
bolts which fasten the hitch mount arms to the hitch
arm mount brackets. Raise or lower the position of the
arms until the aerator is level. See figure 9.
•
•
CONCRETE BLOCK
STRAP
HITCH ARM
MOUNT BRACKET
HOW TO USE YOUR AERATOR
Aerating cuts small holes in the soil to create reservoirs
that bring oxygen, fertilizer and water into the root zone.
For best performance of the spike aerator attachment, the
following lawn preparation and operation is recommended.
HITCH MOUNT ARMS
•
•
•
Start tractor engine with controls in neutral and place
throttle at slow engine speed.
Engage shift lever into lowest possible forward speed
and increase speed as conditions permit.
Aerate in the straightest line possible, making
overlapping passes to increase spike point pattern.
FIGURE 9
MAINTENANCE/STORAGE
CUSTOMER RESPONSIBILITIES
•
Read and follow the maintenance schedule and the maintenance procedures listed in this section.
MAINTENANCE SCHEDULE
Fill in dates as you
complete regular service.
Service Dates
Check for loose fasteners
Check for worn or damaged parts
Cleaning
X
X
X
X
X
Lubricate Spike Disk Hubs
X
•
•
Lubricate the spike disk hubs with a small amount of
light oil or grease at the beginning of each season.
Always store in dry area when not in use. Coat bare
metal with light oil or paint.
•
Spiker points can be sharpened with a small grinder
periodically to maintain good penetration. Spike disks
should be removed to sharpen points.
Before each use check nuts and bolts for tightness.
Clean after each use. If rust appears on shield or
spikes, sand lightly and coat with enamel paint.
•
•
6
PARTS
8
8
8
8
13
8
13
A
6
C
D
1
13
14
B
7
8
13
16
9
6
9
9
9
16
9
18
1
C
A
5
9
2
D
12
9
B
4
11
9
9
9
7
3
12
15
10
11
17
9
19
PARTS LIST FOR 36" SPIKE AERATOR MODEL NO. 486.243361
REF.
NO.
PART
NO.
QTY. DESCRIPTION
REF.
NO.
PART
NO.
QTY. DESCRIPTION
11
12
13
14
15
16
17
18
19
23981
23914
23442
44326
47777
23353
43840
44180
43343
40505
2
2
4
4
2
1
2
2
1
1
Bracket, Hitch
Arm, Hitch Mount
Bracket, Hitch Arm Mount
Bolt, Carriage 5/16-18 x 1"
Spring
1
2
3
4
5
6
7
8
9
24012
24332
45151
2
9
6
Angle Frame
Disc, Spike
Spacer Tube, Long
Bearing, Flanged
Axle
End Plate
Pin, Spring
Bolt, Hex 5/16-18 x 3/4"
Nut, Nylock 5/16-18
Spacer Tube, Short
741-0249 11
26143
23903
44665
43182
47810
48130
1
2
2
12
20
2
Hitch Pin
Bolt, Hex 5/16-18 x 1-1/4"
Bolt, Hex 5/16-18 x 2"
Hair Cotter Pin
Owner's Manual
10
7
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