M o d e l Z Q 1 2 7 / 2 5 Y D r i l l P i p e P o w e r T o n g
5. Maintenance and lubrication
5.1 Before work, the fastening screws must be checked to see whether they are loose, if loose, the screws
must be tightened.
5.2 Before work, enough lubricating grease should be added to each transmitting part.
5.3 After each use, the tong body must be check to clean up water or oil stain in time.
5.4 After each well operation is over, the tong must be cleaned with diesel fuel, and lubricating grease must
be added to each transmitting part after cleaning.
5.5 After each operation, the steam is prohibited to clean the power tong for it could cause the grease lost.
5.6 The temperature of the hydraulic should be kept below 65
℃
, overheating may lead to the failure of the
hydraulic system sealing.
5.7 The hydraulic oil must be kept clean to guarantee the normal filtering of the oil filter, if the oil is dirty, it
should be replaced in time.
5.8 The choice of hydraulic oil
5.8.1 YC-N46 low freezing hydraulic oil, suitable ambient temperature: -20
℃-+40℃.
5.8.2 YB-N46 wear resistant hydraulic oil, suitable ambient temperature: -10
℃-+40℃.
5.8.3 YA-N46 ordinary hydraulic oil, suitable ambient temperature: 0
℃-+40℃.
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