Progressive Turf Equipment 13921943, Руководство оператора и список запасных частей

Страница: 26 / 62

26
An Important Word On Grease Compatibility
What Grease Is:
-Grease is essentially a distilled petroleum product in the form of mineral oil (or a
synthetic) which has a thickening agent such as lithium, calcium, barium, sodium, or
aluminum.
-Many of the thickeners will work for similar situations, but
when mixing greases
with different thickeners, one must review compatibility . Grease incompatibility
will actually decrease the lubrication ability of the grease, and cause premature part
failure.
-There may be other additives in the grease that impart special properties. These
properties may be “high temperature”, “extreme pressure”, etc.
What We Use:
- Our bearing supplier uses Shell Alvania 2
- Progressive uses Texaco Multifak EP 2
- EP means extreme pressure
- Both greases have: - A mineral oil base
- A lithium thickener
- The mineral oil has a NLGI Grade 2
- Both greases are compatible with each other
Note:
-If a thickener other than lithium is used, the existing grease will be contaminated
and the lubrication properties may be lost.
-If a synthetic base oil is used rather than a mineral base oil, the grease will again be
contaminated and the lubrication properties may be lost
-Molybdenum Disulfide (Moly) is an additive used in slow moving, extreme load
applications. The particles in the “Moly” will actually increase bearing wear in a
mower spindle.Our grease does not contain Moly.
-The blade spindle temperature should never go above 120°F if properly greased; we
do not recommend high temperature grease.
A grease with these features is considered to be a “General Purpose Grease”. Use on
all grease point locations on your Progressive Mower.
Our Recommendation for Grease Compatibility
:
The grease you use for the blade spindle assemblies must have these properties:

NLGI grade 2

Lithium thickener (NOT LITHIUM COMPLEX OR LITHIUM 12-
HYDROXY)

Kinematic Viscosity at 40°C is no greater than 190 cSt

Dropping Point Less than 400° F

General Purpose Grease, Not Heavy Duty

No MOLY (molybdenum disulphide) additives in the grease

No synthetic grease

No High Temperature Grease