Precautions
NOTICE:
•
Avoid equipment damage or decreased performance. Never mix greases of different con-
sistencies (NLGI 1 or 3 with NLGI 2) or with different thickeners. For example, never mix
a lithium-based grease with a polyurea based grease. If it is necessary to change the
grease type or consistency, remove the rotor and old grease from the housing before re-
greasing.
•
Remove the bearings and old grease if you need to change the grease type or consisten-
cy. Failure to do so may result in equipment damage or decreased performance.
Recommended grease types
•
Mobilux EP No. 2
•
Texaco Multifak EP-2
•
ShellAlvania EP-2
Requirements
Keep the following points in mind when lubricating with grease:
•
Grease must be of sodium or lithium base with a NLGI-2 consistency. Do not use graphite.
•
Greases made from animal or vegetable oils are not recommended due to the danger of deteriora-
tion and forming of acid.
•
Additional or replacement lubricant must be added after 2,000 hours or at three-month intervals.
•
Replace the lubricant in the housings at least once annually. This must be done when an overhaul
is made.
•
When greasing anti-friction bearings, do not use high-pressure equipment. High pressure can dam-
age the bearings or seals, cause unnecessary loss of grease, create a danger of overheating due
to over greasing, and produce unsightly conditions around the bearing.
•
Excess grease is the most common cause of overheating. Maintain the grease level at about the
capacity of the bearing and 1/3 to 1/2 of the cavity between the bearing and grease fitting. Any
greater amount will be discharged by the seal or vent.
6.3.2 Lubricate the oil-lubricated bearings
Oil lubrication is optional. Oil-lubricated pumps are installed with Trico oilers. The oilers keep the oil level
in the housings constant at the proper level.
6.3 Bearing maintenance
Model 3409 Installation, Operation, and Maintenance Manual
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