OPERATION

Compaction of Materials

Test the Compactor First

BTI compactors achieve material compaction by using impulse force and vibration to displace air and water pockets in the material. Compaction performance depends on 3 items:

•Type and size of material being compacted

•Moisture content of the material

•Depths of lifts being compacted

Use a short trial of the compactor to determine the optimum depth of lift and speed of boom travel to achieve the required density. This value will vary depending on the material's composition and size. For example, marbles being a uniform shape do not pack as well as gravel, which has uneven shapes allowing the stones to interlock with each other.

You can reach nearly 100% of the maximum material density with a BTI compactor by using smaller lifts, and increasing the holding time in each spot. Typical hourly production rates to compact soil to over 95% its original density are;

Hourly

TC51L/FC / TC51H/FC: 14-22 cu yds (11-17 cu M) per hour

Production Rates

TC71 / TC71FC: 18-27 cu yds (14-21 cu M) per hour

 

TC80: 23-32 cu yds (18-25 cu M) per hour

 

TC91S: 25-35 cu yds (19-27 cu M) per hour

 

TC151S / TC151SH: 65-75 cu yds (50-57 cu M) per hour

 

TC301 / TC301H: 110-130 cu yds (84-99 cu M) per hour

Operate Carrier at Minimum Speed

Compactor Base Must Contact Soil

Use Proper Boom Down-Force

Always operate the carrier engine at the minimum speed required to achieve the desired result. This allows the hydraulic system to run cooler. Excess flow beyond recommended levels can damage the compactor motor.

Ensure the compactor base plate is in contact with the soil before operat- ing.

When using a BTI compactor it is the amplitude (up and down motion) of the plate, which does the compaction and not the compactor weight or the carrier boom down-force. As you apply down-force to the compactor, the carrier will lift slightly giving you an indication that the compactor is properly pressed onto the material. Too much boom down-force inhibits the up and down motion, reducing the compactor's impact force. (Improper operation of the compactor can result in premature failure of the rubber isolators.)

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