21798-01-EN Rev. 04 Page 33
6
MAINTENANCE
6.1 Cleaning
Note: The SMARThatch sensor face is made of a hardened material that is well-
suited for the high abrasion concrete mixer environment.
However, to prevent damage that would require sensor replacement, extreme
care must be taken not to strike the face with a hammer, chisel, etc.
For proper operation and long-term service, the SMARThatch sensor face
must be kept clean and free from any buildup. It is important the sensor face is
thoroughly rinsed with water during routine mixer cleaning, prior to the concrete
curing and build-up.
Should a small amount of build-up occur on the face of the sensor, the drum can
be loaded with ¾” aggregate and water, then run at full charge to scrub the
concrete off the sensor face.
6.2 Preventative Maintenance
6.2.1
General Maintenance
When performing periodic inspection of the drum and truck, take note of any
damage to the sensor, receiver and associated cables. If any noted damage
indicates that the protection of the electronics is compromised or that
compromise is imminent, or if the cable damage suggests that cable electrical
shorts or opens are imminent, then take the appropriate corrective action
depending on the situation – up to and including removal of the affected
component from service until repairs have been performed. Contact CiDRA
Concrete Customer Support regarding service, repairs and spare parts (Section
1.4).
6.2.2 Inspection of the Nut Plate
The hatch nut plate is a wear item. It should be inspected according to the drum
manufacturers recommended procedures and schedule. If it is determined that
the wear is excessive, it must be repaired. Remove the SMARThatch sensor
from the drum prior to servicing the nut plate.
To Next Page
Loading...