Outlets of a tractor

Outlets of a tractor
    There are four power outlets of tractor
    Power take-off unit (PTO)
    • It is a part of tractor transmission system. It consists of a shaft, a shield and a cover.
    • The shaft is externally splined to transmit torsional power to another machine as shown in Plate : 9.1.
    • A rigid guard fitted on a tractor covers the power take-off shaft as a safety device.
    • This guard is called power take-off shield. Agricultural machines are coupled with this shaft at the rear part of the tractor.
    • As per ASABE standard pto speed is 540±10 rpm when operating under load.
    • In order to operate 1000 rpm drive machine, a new standard has been developed. Modern tractors are provided with pto speed of 1000±10 rpm.
    9.1
    (Courtesy: http://web.extension.illinois.edu & http://en.wikipedia.org )
    Plate : 9.1 Tractor operator PTO shaft and it’s operation Hook
    A hook
    • It is provided for hitching of trailers, and other stationery machines operated by tractor like thresher, winnower etc.
    • It is provided at the back of the tractor.
    9.2
    (Courtesy: http://daimlersteelforge.com)
    Plate : 9.2 Tractor hook
    Three point linkage
    • It is a combination of three links, one is upper link and two are lower links, the links articulated to the tractor and the implements at their ends in order to connect the implement to the tractor.
    • All the tractor drawn implement are attached to this and hydraulic control is also provided for three point linkage. The Three point linkage is shown in Plate : 9.3.
    9.3
    (Courtesy: http://www.agmax.com.au)
    Plate : 9.3 There point linkage of tractor
    Belt pulley
    A pulley is provided with pto shaft for some of the tractors through which rotary power output can be tapped for operating stationery machines.
Last modified: Tuesday, 26 June 2012, 1:22 PM