C-Tech EDC-3A, Product Manual, Page: 5 / 7

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② . Pull the handle of the press molding device inward to compress the test tube. Then hold the
handle of the hammer with your hand, and slowly turn the bayonet lock to make the hammer
and guide rod fall. Touch the jog button by hand to observe the transmission wheel, forward and
reverse. (Note: the carrying hammer block is running counterclockwise to rotate forward,
otherwise, change the phase sequence of the power cable, and you can arbitrarily exchange two
of them.)
③ . After everything is normal, press the "Start" button and the compactor starts to work.
④ . When the specimen has been compacted on one side, remove the sleeve, turn the mold over,
and then compact the other side in the same manner and number of times.
⑤ . After compaction finished, immediately remove the upper and lower paper with tweezers.
Measure the height of the specimen from the upper side of the mold by caliper, and calculate
the height of the specimen, if the specimen does not conform to the requirements will be
discarded. And adjust the mixture weight of specimen according to the following formula, to
guarantee the height of specimen conforms to 95.3mm±2.5mm or 63.5mm±1.3mm.
⑥ . Finally remove the test cylinder and base, place the specimen horizontally and cool to room
temperature (no less than 12 hours), and then eject on the sample extruder.
⑦ . After test finished, clean the mold for next test use. Wipe clean the machine, coat with lubricant
on the guide rod, compaction rammer and
driving wheel. Cut off the power of the
distribution box, turn off the power switch.
V. Manual hammer lifting device
The following figure is a schematic diagram of the
hammer lifting device. When lifting the hammer,
turn the handle toward user and slightly outward to
lock the handle with the bayonet lock. At this time,
the compaction hammer is lifted and locked, and
the mold installation or mold replacement operation
can be performed (the press mold device needs to
be pushed up first). After completion, pull the handle
of the lifting hammer, then slowly release the lifting
Hammer lifting device
Lifting handle
Handle bayonet lock