Figure 11-31. V ditch construction.
Figure 11-32.-Angle blade ditch cut.
Figure 11-33.Bench cut.
Figure 11-35.-Shallow slope sidehill excavation.
the ditch (fig. 11-31). Then turn the machine parallel to
the line of the ditch, get the outside track on the window,
and make a pass along the windrow. With the outside
track elevated by the windrow, the blade cuts one side
of a V type of ditch. Cut the other side the same way.
An angle blade is preferable for digging a V type
of ditch for two reasons: (1) you can side cast the
windrow in a single pass and (2) the angled blade will
side cast the material to the sides of the ditch as you
travel along the windrow, as shown in figure 11-32.
A sidehill excavation can be started more easily if a
small bench cut is made first, as shown in figure 11-33.
When digging the sidehill, keep the inside (uphill)
surface slightly lower to gain greater tractor stability
(fig. 11-34). Tilting the blade produces this type of cut.