Description
Castrol Molub-Alloy™ 969/320 Leak Resistant Gear Compound is specially formulated to help control leaks in gearcases
when repairs cannot be immediately performed to eliminate the cause(s) of leakage. The synthetic thickener forms a matlike matrix at the points of leakage to minimize the flow of oil. This product has a moderate thickening effect on the product,
especially during storage or while the equipment is stationary. During the churning motion of gears and bearings,
however, Castrol Molub-Alloy 969/320 exhibits the rapid flow and film-forming characteristics similar to a regular gear oil.
Leakage from gearcases has traditionally been controlled by the substitution of a grease for the lubricating oil. This is
unsatisfactory because greases can form "channels" and are poor at carrying heat away from the meshing gears and
dissipating it from the gearcase. In contrast, the synthetic thickener in Castrol Molub-Alloy 969/320 forms a gel and seals
small openings in the gearcase but otherwise acts like a standard gear oil in service.
Application
Castrol Molub-Alloy 969 Leak Resistant Gear Compound is formulated using a standard ISO base oil viscosity.
Castrol Molub-Alloy 969 Leak Resistant Gear Compound was originally developed for service in heavy duty earth-moving
equipment such as shovels and draglines. Surging stress and vibration on these machines inevitably produces some
degree of leakage from gearcases. Excessive leakage at shaft seals is not uncommon on hoist, drag, propel and
especially swing gearcases of large draglines and swing cases of shovels. Often the tramp oil will contaminate the heavy
gear compounds necessary to lubricate the exposed open gear drives.
The use of Castrol Molub-Alloy 969 Leak Resistant Gear Compound can be extended to control leaks in gearsets in
industrial and marine applications.
Advantages
Performs as a heavy duty gear oil under normal operations.
Will reduce or completly stop leakages until maintainance can be carried out.
Additional Information
Important Restrictions
Castrol Molub-Alloy 969 Leak Resistant Gear Compounds are not for use in units that include a central lubricating system
as they will not pump like an oil or nor flow through small lines. 969 will plug filters.
Castrol Molub-Alloy 969 Leak Resistant Gear Compounds should not be used in gearcases where shaft bearings are
lubricated by oil flowing through small lines or orifices as they will seal small openings or seriously restrict oil flow. On the
other hand, where bearings are submerged, and oil flow is not unidirectional, flow is not restricted.
Castrol Molub-Alloy 969 Leak Resistant Gear Compounds are designed for use in gearboxes where gear oil makeup
volumes are unacceptable due to worn shaft seals or other minor causes of leakage. The 969 Compounds should be
used as gearbox fill only until repair of the leaking condition can be conveniently performed. Castrol Molub-Alloy 969 Leak
Resistant Gear Compounds are not designed to prevent leakage due to gross mechanical defects such as worn bearings
and damage causing shafts to experience excessive play which results in excessive lubricant makeup.
Notes
Castrol Molub-Alloy 969 Leak Resistant Gear Compounds may be metered through grease pumping systems, but would
be expected to cavitate in oil circulating pumps.
Castrol Molub-Alloy 969 Leak Resistant Gear Compounds will flow readily when agitated but should not be expected to
flow by gravity or feed through small lines. Castrol Molub-Alloy 969 Leak Resistant Gear Compounds must be stirred
vigorously before use.
Since filters must be removed when using Castrol Molub-Alloy 969 Leak Resistant Gear Compounds, routine oil sampling
is strongly recommended.
Related products
English
Türkçe