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INTRODUCTION
1812 08/14
Introduction Section 2-3
© 2014 Alamo Group Inc.
INTRODUCTION
NOTE
: All references made in this manual to right, left, front, rear, top or bottom are as
viewed facing the direction of forward travel with implement properly attached to tractor.
The Bush Hog Model 1812 Flex Wing Rotary Cutter is designed primarily for weed,
grass, and brush to 1-1/2" diameter and consists of a center unit with two variable
position wings together having a cutting width of 12 feet. Wing operating angles and
machine cutting height are independently controlled using hydraulic cylinders. A self-
leveling linkage maintains a level cutter at all cutting heights. Power from the tractor
PTO is split at the center gearbox and supplied to each of the blade gearboxes. Each
blade gearbox has two free-swinging uplift blades designed for light mowing. Free-
swinging blades reduce the shock of impact when a stationary object is hit. Slip clutches
are installed on each gearbox for additional protection. Front and rear discharge shields
are included as standard equipment.
Equipment Specifications 1812
Cutting Width
12’
Blade Tip Speed
Transport Width
6’ 8”
540 PTO rpm
14,464 FPM (Center
Transport Height
5 8”
13,930 FPM (Wings)
Overall Length
18’ 3”
Cutting Height
2 - 14”
Blades
HP Required (min)
50 PTO HP
Blades
1/2” x 3” - Uplift
HP (Max Tractor)
73 PTO HP
Blades Overlap
6”
Cutting Capacity (max)
1-1/2”
Hitch
Cast Swivel Clevis
Gearbox Rating
Wing Flex Up
87°
Transfer
160 HP
Wing Flex Down
20°
Center & Wings
65 HP
Weight
3,278 lbs.
Overall Width
12’ 8”
Tires
Tractor PTO
540 RPM
Laminated, Aircraft, Foam Filled Aircraft
Deck Thickness
10 Gauge
Tongue Weight
1086 lbs.
PTO Driveline
Cat 4 (540 RPM)
WING
- Cat 4
Summary of Contents for 1812
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Page 9: ...Safety Section 1 1 2014 Alamo Group Inc SAFETY SECTION ...
Page 25: ...SAFETY 1812 08 14 Safety Section 1 17 2014 Alamo Group Inc SAFETY Decal Description ...
Page 26: ...SAFETY 1812 08 14 Safety Section 1 18 2014 Alamo Group Inc SAFETY ...
Page 27: ...SAFETY 1812 08 14 Safety Section 1 19 2014 Alamo Group Inc SAFETY ...
Page 28: ...SAFETY 1812 08 14 Safety Section 1 20 2014 Alamo Group Inc SAFETY ...
Page 29: ...SAFETY 1812 08 14 Safety Section 1 21 2014 Alamo Group Inc SAFETY ...
Page 30: ...SAFETY 1812 08 14 Safety Section 1 22 2014 Alamo Group Inc SAFETY ...
Page 31: ...SAFETY 1812 08 14 Safety Section 1 23 2014 Alamo Group Inc SAFETY ...
Page 32: ...SAFETY 1812 08 14 Safety Section 1 24 2014 Alamo Group Inc SAFETY ...
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Page 35: ...Introduction Section 2 1 2014 Alamo Group Inc INTRODUCTION SECTION ...
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Page 41: ...Assembly Section 3 1 2012 Alamo Group Inc ASSEMBLY SECTION ...
Page 47: ...ASSEMBLY 1812 08 14 Assembly Section 3 7 2012 Alamo Group Inc ASSEMBLY ...
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Page 51: ...Operation Section 4 1 2012 Alamo Group Inc OPERATION SECTION ...
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Page 101: ...Maintenance Section 5 1 2014 Alamo Group Inc MAINTENANCE SECTION ...
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Page 119: ...SEGURIDAD 1812 08 14 Sección de Seguridad 1 26 2012 Alamo Group Inc SEGURIDAD ...
Page 120: ...SEGURIDAD 1812 08 14 Sección de Seguridad 1 25 2012 Alamo Group Inc SEGURIDAD ...
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Page 144: ...Sección de Seguridad 1 1 2012 Alamo Group Inc SECCIÓN DE SEGURIDAD ...
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