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AM5K User Manual Rev Q Oct 2007 Page 12 of 44
4.0 MAINTENANCE AND REPAIR
4.1 PRE-JOB CHECK
Each time the system is used perform the following steps:
Verify that the AM5K is properly and securely attached to the spooling arm.
Several different mounting kits are available for different types of spooling arms.
Verify that the depth measuring wheels are clean and that no groove has been
worn into the measuring wheel surface. Check the measuring and guide wheels
for looseness, play, out-of-roundness, worn or rough sounding bearings, or other
mechanical conditions that could affect measurement accuracy. Ensure that the
wheel bearings inner race is not spinning on the shaft and that the shaft is not
spinning in the bushings.
Verify that all fasteners are tight and that the ball lock pushpin is secure. Verify
that the encoder, electronic load pin, and backup counter cable are installed and
properly routed. Verify that the depth system is working by turning the wheel
and observing the hoistman’s panel and backup display unit to indicate cable
movement. The hoistman's panel and backup display should measure 2' for
each rotation of the wheel. If more than one encoder is installed check both
encoders by turning each wheel and verifying that the hoistman's panel will read
2' for each rotation of either wheel.
4.2 POST-JOB MAINTENANCE
At the completion of each job, thoroughly clean and dry the device as soon as
possible. This avoids problems caused from borehole residues transferred from
the wireline onto the measuring device. Borehole residues should be washed
from the device with a cleaning solvent such as Varsol or an equivalent type.
Rinse the device with water, dry, and wipe down with an oily rag.
Do not pressure wash
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