17
05
Installation
Manual 2008 Rev A p/n 2008
Frequently Asked Questions Regarding
Lubrication
What is the functional detriment if the “wrong
oil” is used?
The lubricant is selected based on bearing
speed, gear speed, and operating temperature.
If the lubricant is too light, it increases wear by
not separating the sliding surfaces and it will not
remove the heat adequately. If the lubricant is too
thick, the drag in the bearings is increased, causing
them to run hotter. Thicker lubricant will not flow
as readily into the gears and it will reduce the
available backlash. Lubricants at our conditions are
incompressible.
What is the functional detriment if the oil is not
serviced?
If the lubricant is not serviced at the proper
interval, the shearing action in the bearing and the
gears will begin to take its toll and the lubricant
will thicken. The blower will run hotter and the
wear on moving parts will increase. The lubricant
will generally appear dirtier, caused by material
rubbing off the components. The lubricant will
discolor because of overheating. An indicator of the
breakdown of a lubricant is the increase in the Total
Acid Number (TAN) and a change of 10 percent in
the base viscosity.
Several things are happening as the lubricant
goes through the blower. First, it is absorbing
frictional energy in the form of heat. This heat has
to be dissipated through either surface contact
with cooler materials or in a rest volume of
lubricant. While reducing the friction, the lubricant
is also going through a shearing process and the
molecular structure is broken down.
The result is that the lubricant will begin to thicken
because of the shorter molecular chains and the
drop out of additive packages. The thickened
lubricant will cause more drag, increasing the
friction and heat and further degrading the
lubricant.
Operation of the blower (environment, run time,
speed, and pressure) has a direct effect on duty
cycles. The published cycles are based on worst-
case conditions.
Hazards Associated With Breakdown or
Ignition of Lubrication
DANGER
!
There is a risk associated
with the lubrication media
breaking down and resulting
in a hazardous fluid or vapor.
There may also be a hazard
associated with the ignition of
the lubrication media. Refer to
the lubrication manufacturer’s
applicable instruction for safety
precautions.
LUBRICATION – INTEGRAL
PRESSURE (19, 86, 55, 82, 66,
69 SERIES)
Oil Filter
The oil filter is a self-contained, spin-on type.
Change the oil filter element with every oil change.
Filters are available from Tuthill Springfield, or from
any authorized distributor or service center.
CAUTION
!
Factory-supplied filters are engineered
to provide the proper restriction in the oil
lubrication system. Using filters other than
those available from Tuthill Springfield may
result in lubrication problems and possibly
unwarrantable damage to the blower.
Summary of Contents for PD Plus 9000 Series
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