Humboldt H-1339B Marshall Compression Machine - Manual (Page 6)

Load Ring Calibration
Your H-4454.100 was calibrated before leaving the factory. Periodically you
should have it re-calibrated. Humboldt provides calibration services for
these load rings, please contact us at: 1.800.544.7220, 1.708.456.6300,
1.708.456.0137 fax or [email protected].
Maintenance
The machine and transducers should be kept clean and the machine should not
be over lubricated. Light oiling with synthetic instrument oil at most is required
on exposed spindles and threads; the jack and gear box are serviced with a
premium wheel bearing grease such as Pennzoil 707L Lubriplate Grease applied
thru the grease fitting no more than annually, or when an indication of power
train friction appears.