SERIES WTHD TANDEM HARROW
• 8’ to 26’ Cutting Widths                 • Heavy-duty Disc Scrapers
• 24” x 1/4” Disc Blades                    • Heavy-duty Welded Frame
• 1-1/2” Square Alloy Steel Axles        • Sealed Flange Bearings
• 9” and 10-1/2” Disc Spacing           • Rigid or Hydraulic Folding Models
Oliver & Dahlman Equipment Co. reserves the right to change the
design, material and specifications of its products without notice.  
Illustrations may include optional equipment and accessories, and may
not include all standard equipment.
                    FEATURES

• FRAME
Constructed from 4 x 6 x 3/4 angle and 4 x
4 x 3/8 square tubing.  Tongue is 3 x 6 x
3/8 and a 4 x 4 x 3/8 drawbar with heavy-
duty spring bundle for front to rear leveling.

• GANGS
3 x 6 x 3/8 gang carriers provide rigid
support for gang components.

• AXLES
Made from 1-1/2 square alloy steel to
provide strength and durability.

• ANGLE OF CUT
Adjustments from 5° to 28°.

• BEARINGS
Re-Lubricatable sealed flange bearings on
10-1/2” disc spacing and pillow block
bearing assemblies on 9” disc spacing.  
Width of
Cut
 No. of
Blades
 Disc
Spacing
 No. of
Brgs.
 Min
Req.
HP*
 Approximate
Weight
8’
 20
 9
 8
 70
 3900
9’
 20
 10-1/2
 8
 70
 4000
9’6”
 24
 9
 8
 90
 4100
10’6”
 24
 10-1/2
 8
 95
 4300
10’6”
 28
 9
 12
 100
 4500
12’
 28
 10-1/2
 12
 110
 4700
12’
 32
 9
 12
 110
 4800
13’4”
 32
 10-1/2
 14
 115
 5000
13’4”
 36
 9
 16
 120
 5200
15
 36
 10-1/2
 16
 140
 5400
15
 40
 9
 16
 150
 5600
16’8”
 44
 9
 16
 165
 6300
17’
 40
 10-1/2
 16
 175
 6150
STANDARD EQUIPMENT
• 24” X 1/4” Discs  
• 9” or 10-1/2” Disc Spacing
• Hydraulic Lift Cylinder w/ hoses
• Hydraulic Control Group on Folding Models
• Single 11L x 15 Wheels (Dual Wheels on 32-44 blade units)
• Heavy-duty Disc Scrapers

OPTIONAL EQUIPMENT
• 22” X 1/4” Discs
• 24” x 5/16” Discs
• 26” x 1/4” Discs