Grease-lubricated bearings are lubricated at the factory.
The bearing manufacturer fills greased-for-life bearings with grease and seals them at the factory. You do
not need to lubricate or seal these bearings.
On pure or purge-oil mist-lubricated units, remove the viewing port plugs to verify that oil mist is flowing
properly. Replace the plugs.
5.7.1 Oil volumes
Oil volume requirements
Frame
Quarts
Liters
S
1.1
1.0
M
2.1
2.0
L
2.1
2.0
XL
3.2
3.0
XL1
12.2
11.6
XL2-S and XL2
24.0
22.7
5.7.2 Lubricating oil requirements
Use a high quality turbine oil with rust and oxidation inhibitors.
Lubricating oil requirements
Bearing temperature below 82°C
| 180°F
Bearing temperature above
82°C | 180°F
ISO grade
ISO viscosity grade 68
ISO viscosity grade 100
Approximate SSU at 38°C | 100°F
300
470
DIN 51517
C68
C100
Kinematic viscosity at 40°C | 105°F
mm
2
/sec
68
100
5.7.3 Acceptable oil for lubricating bearings
Acceptable lubricants
Table 9: Acceptable lubricants
Brand
Lubricant type
Chevron
GST Oil 68
Exxon
Teresstic EP 68
Mobil
DTE Heavy Medium
Phillips 66
Turbine Oil VG68
MM motor oil SAE 20-20W
HDS motor oil SAE 20-20W
Gulf
Harmony 68
Dow Corning
High Vacuum Grease, NSF 61 compliant label
MOLYKOTE from Dow Corning 111, NSF 61 compliant label
Loctite
565 thread locker, NSF 61 compliant label
5.7 Bearing lubrication
58
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual