Location: Back Of Control Panel
It is not difficult to become an efficient operator. Control lever operating decal is located on back of the control panel. Study this decal. It will assist you in becoming familiar with the controls.
Smooth, light handling of the controls will result in the most efficient backhoe operation.
Operate the backhoe control levers to become famil- iar with their speed and movements. The engine speed and the size of the hydraulic system will deter- mine the speed of cylinder operation. When powering from tractor systems with higher output than required, reduce engine RPM to obtain acceptable backhoe operating speed.
Swing the boom several times to practice controlling the speed of swing. Do not operate the swing more than 45° each way for the first few times, then gradu- ally increase the arc.
IMPORTANT: To avoid damage to the backhoe, do not slam swing unit into the rubber bumpers.
The boom “float” function may be used during digging to eliminate down pressure when cleaning the bottom of a trench. The primary purpose of the boom “float” function is to protect the operator from serious injury in the event that the backhoe or tractor hitch would fail.
Best results are obtained by digging near the center of the swing arc so material can be dumped on either side.
As the operator becomes more familiar with the oper- ation of the backhoe, it will be common practice to operate two controls at one time. For example; with the bucket extended and the dipperstick extended, the lift control and crowd control can be operated together to bring the bucket toward the operator with down pressure on it. As the dipperstick approaches the operator, the crowd and bucket controls can be operated to close the bucket and trap the material. At the end of the stroke, the lift and crowd controls are operated to move the load up and away from the operator to save time in clearing the excavation.
This dual operation of controls will speed and simplify the digging operation. Normally the two or more movements will not be equal or even simultaneous, but as the pressure within the cylinders changes, and the resistance on an operating member of the hoe lessens, it will begin to move. It is balancing the force of one member against the other.
NOTE: Actuating the bucket is the key to powerful dig- ging. Operating the crowd and bucket controls simul- taneously will insure a full bucket and prevent waste motion and time.
Transporting the Backhoe:
IMPORTANT: To prevent serious damage to the trac- tor, read and follow the instructions on the following decal:
Location: Right Side of Boom
10
