Maintenance
Model 710 TruBlue Installation, Operation, and Maintenance Manual
48
Bearing maintenance
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 200-300
hours of operation, depending on
bearing temperature.
See the Oil change schedule ta-
ble.
Grease-lubricated bearings
N/A
Oil change schedule
Oil must be changed at least once a year.
Bearing temperature
First oil change
Subsequent oil changes
Up to 60°C | 140°F
After 300 hours of operation
Every 8760 hours of operation
60°C to 80°C | 140°F to 176°F
After 300 hours of operation
Every 4000 hours of operation
80°C to 100°C | 176°F to 212°F
After 200 hours of operation
Every 3000 hours of operation
NOTICE:
• Strictly maintain the oil changing schedule if the pump is operating in an potentially
explosive environment.
• Change the oil every two years if the pump is left idle.
• Dispose of used oil in accordance with local environmental regulations.
Lubricating oil requirements
Oil quality requirements
Use a high-quality turbine oil with rust and oxidation inhibitors.
Lubricating oil type
• ISO Grade VG 68
• DIN 51517
• HD 20W/20 SAE
Kinematic viscosity at 40°C | 104°F
68
Flash point (Cleveland)
175°C | 347°F
Setting point (Pourpoint)
-15°C | 5°F
Application temperature
(Contact your ITT representative to determine a
suitable type of lubrication if ambient temperatures
are below -10°C | 14°F.
Higher than permitted bearing temperature
Oil quantity requirements
Bearing frame size
Oil quantity
liters | quarts
S Group
0.5 | 0.53
M group
1.1 | 1.10
Change the oil
1. Remove the oil drain plug (408A).
2. Drain the oil.
3. Flush the pump with fresh oil.
4. Clean the oil drain plug.
5. Close the oil drain.
