Bearing maintenance
These bearing lubrication sections list different temperatures of the pumped fluid. If the pump is ATEX-
certified and the temperature of the pumped fluid exceeds the permitted temperature values, then consult
your ITT representative.
Bearing lubrication schedule
Type of bearing First lubrication Lubrication intervals
Oil-lubricated bearings Add oil before you install and start
the pump. Change the oil after 200
hours for new bearings.
After the first 200 hours, change
the oil every 2000 operating hours
or every three months.
Grease-lubricated bearings Grease-lubricated bearings are
initially lubricated at the factory.
Regrease bearings every 2000
operating hours or every three
months.
Lubricating-oil requirements
Oil requirements based on temperature
For the majority of operating conditions, bearing temperatures run between 120°F (49°C) and 180°F
(82°C), and you can use an oil of ISO viscosity grade 68 at 100°F (38°C). If temperatures exceed 180°F
(82°C), refer to the table for temperature requirements.
Temperature Oil requirement
Bearing temperatures exceed 180°F (82°C) Use ISO viscosity grade 100 with bearing-frame
cooling or finned-tube oil cooler. The finned-tube
oil cooler is standard with the HT 3196 model and
optional for all other models.
Pumped-fluid temperatures exceed 350°F (177°C) Use synthetic lubrication.
Oil volumes
Oil volume requirements
This table shows the required amount of oil for oil-lubricated bearings.
Frame Qts. Oz. ml
STi 0.5 16 400
MTi 1.5 47 1400
LTi 1.5 48 1400
XLT-i and i17 3 96 3000
Acceptable oil for lubricating bearings
Acceptable lubricants
Brand Lubricant type
Chevron GTS Oil 68
Exxon Teresstic EP 68
Mobil DTE 26 300 SSU @ 100°F (38°C)
Philips Mangus Oil 315
Shell Tellus Oil 68
Sunoco Sunvis 968
Royal Purple SYNFILM ISO VG 68 Synthetic Lube
Maintenance
62 Model 3196 i-FRAME Installation, Operation, and Maintenance Manual
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