TAMPING RAMMERS
5.3 OPERATING THE MACHINE
5.3.1. After starting the engine, gradually re-open the air regulator lever completely. Allow the
engine to warm up at minimum velocity for a period of 3 to 5 minutes. This procedure of warming up
the engine at a minimum revolution level is particularly important during the cold period. While the
engine is warming up, carry out a general revision of the machine to make sure that there are no
anomalies.
5.3.2. The piston starts to operate when the accelerator lever is turned with a rapid movement a
quarter of a revolution. If the lever is moved slowly, the action of the rammer will be irregular,
possibly causing damage to the clutch, the spring and the leg.
5.3.3. After the machine has started to operate, adjust the movement of the vibration in such a
way that it conforms to the particular condition of the ground, using the accelerator lever slightly as a
control. This rammer has been designed in such a manner that when the engine works at a velocity
of between 3,600 and 4,000 r.p.m., its leg hits the surface of the ground at a rate of 600 to 700 times
per minute, thus ensuring the greatest efficiency of performance. An unnecessary increase in the
velocity of the engine does not produce any increase in the force of compaction. Instead, the
resulting resonance causes a reduction in the compaction force, damaging the machine.
5.3.4. In cold weather, as the oil in the machine is viscous, the resistance in the alternating part
is greater, producing a somewhat irregular movement in the compacting rammer. For this reason, it
is recommended that the machine should be run for a while before starting work to warm it up,
moving the accelerator lever repeatedly between the positions 0 and ¼ turn.
5.3.5. The surface of the leg in contact with the ground is covered with a thermally treated
metallic plate. Nonetheless, for the compaction of boulder it is advisable to use a filling of fine
material such as sand so that the rear end of the leg's plane surface makes contact with the ground.
5.3.6. The compacting rammer has been designed to advance as it vibrates. To speed up the
rate of advance, raise the machine by pulling it slightly in a backwards direction, in such a way that
the rear end of the leg's plane surface makes contact with the ground.
5.4 STOPPING THE MACHINE
5.4.1. To stop work rapidly shift the accelerator lever from position ¼ to 0, the inverse of the
movement for starting the machine.
5.4.2. Before stopping the engine, leave it ticking over for two to three minutes and then press
the stop button until the engine stops completely.
5.4.3. Close the fuel tap by putting the lever in a horizontal position.
To Next Page
Loading...