NorAM 65E Turbo, Руководство оператора

Страница: 61 / 118

NORAM 65ET GRADER
2-27
Operat
ion
2
DIGGING
NOTE:
Always keep cutting edges in good condition. Dull and worn edges increase power demands on the motor
grader.
When starting a ditch, position moldboard so end (right or left) is directly behind and 76 mm (3 in) below the front
wheel. Position the other end of the moldboard as high as possible.
The first cut should be slow enough to maintain control of the grader and cut a straight ditch line. Only dig deep
enough to create a shallow ditch and line to follow for subsequent passes. Lean the front wheels in the direction of the
discharge to counteract the load.
For the second pass, position the wheels inside the ditch and, with a slightly higher speed than the first pass, maintain
a 3:1 ratio between width and depth.
Discharge the material under the rear module between the rear
wheels. If the material accumulates under the machine, it should
be cast aside with a "cleaning" pass before taking another cut. For
the cleaning pass, the moldboard should be tilted forward slightly
to handle more material.
A deeper ditch requires more cleaning passes and side casting of
material.
If a "V" ditch is required, each side of the ditch must be cut
alternately to permit the front and rear wheels to travel in the
center of the ditch.
FILLING TRENCHES OR DITCHES
When required to cast material over the edge of a ditch, fully shift
the moldboard toward the ditch so the grader wheels are away
from the edge, 1. The weight of the motor grader could cause the
edge to collapse. Offset the rear module, 2, away from the ditch
using the articulation capability to move the weight of the machine
farther away from an edge.
All material should be discharged from the end of the moldboard
and into the ditch.