The preventive maintenance section must be adhered to in order to keep the applicable
ATEX classification of the equipment. Failure to follow these procedures will void the ATEX classification
for the equipment. Bearing replacement intervals are given in the specific pump model IOM.
Throughout this section on bearing lubrication, different pumpage temperatures are listed. If
the equipment is ATEX certified and the listed temperature exceeds the applicable value shown in Table
1 under ATEX identification, then that temperature is not valid. Should this situation occur, please consult
with your ITT/Goulds representative.
For ATEX applications bearing replacement (all) is recommended after 17,500 hours of oper-
ation.
CAUTION:
Operation of the unit without proper lubrication will cause bearing failure, and pump seizure.
5.6.2 Oil lubrication
When the pump is furnished with oil lubrication, a good grade of oil should be used to ensure long bear-
ing life.
NOTICE:
Pumps furnished for oil lubrication are shipped without oil. Add oil until the level is up to the oil
level line before the unit is started.
If too much oil is added, there will be excessive heat generated in the bearings and there may be leak-
age from the shaft seals. We recommend a commercial oil such as Mobil D.T.E. oil, B.B., Tellus 41 or
equal. However, a good grade of #30 or #40 weight is satisfactory for normal temperatures.
For best results, the weight of the oil lubricant should be adjusted for the normal operating temperature
as follows:
To 60°C | 150ºF
SAE 20
To 71°C | 160ºF
SAE 30
To 79°C | 175ºF
SAE 40
To 93°C | 200ºF
SAE 50
5.6.3 Grease lubrication
When the pump is furnished for grease lubrication, the pump will be shipped with the bearings hand-
packed with Mobilux #2 grease, unless otherwise specified by the customer. Other suitable greases are
Humble Lidok #2, Texaco Regal Starfak #2, and Shell Alvania #2. If another brand is desired, it should
be checked with the supplier to determine if it is equivalent to the above.
5.6 Maintenance of Bearings
Model JC Installation, Operation and Maintenance Instructions
31
