Looking Back: Caterpillar's First Motor Grader
Caterpillar first became involved in the motor grader industry in 1926, when the Russell Grader Manufacturing Company of Minneapolis, Minnesota released a grader featuring a 2-ton Caterpillar crawler tractor. This grader – called No.4 Auto Patrol – which was rated at 27 horsepower, and had hand-operated blade controls – sold successfully. As a result of No.4 Auto Patrol's sales success, the Russell Grader Manufacturing Company developed another grader utilising a Caterpillar crawler tractor – No.6 Auto Patrol. No.6 Auto Patrol was released in 1928, and was also a great success for the company.
Following the success of No.4 Auto Patrol and No.6 Auto Patrol, Caterpillar took the opportunity to
Caterpillar first became involved in the motor grader industry in 1926, when the Russell Grader Manufacturing Company of Minneapolis, Minnesota released a grader featuring a 2-ton Caterpillar crawler tractor. This grader – called No.4 Auto Patrol – which was rated at 27 horsepower, and had hand-operated blade controls – sold successfully. As a result of No.4 Auto Patrol's sales success, the Russell Grader Manufacturing Company developed another grader utilising a Caterpillar crawler tractor – No.6 Auto Patrol. No.6 Auto Patrol was released in 1928, and was also a great success for the company.
Following the success of No.4 Auto Patrol and No.6 Auto Patrol, Caterpillar took the opportunity to