Description of Air Input System
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KVAL 990-F4 Service Manual
Description of Air Input System
There are two types of air inputs on
KVAL
machinery. Not all machines have lubricator option
installed. Check your machine or Air prints to verify installation.
Air Input with Lubrication
The air input system takes in shop air and supplies clean dry air (CDA) and lubricated air to the
machine. The clean dry air is diverted to blow off nozzles. The lubricator, located after the CDA
filters, delivers the lubricated air to valve banks and air cylinders.
FIGURE 3-1.
Typical Air Line Filter and Lubrication System
Adjusting the Air Line Lubricator
Using the knob on the top of the lubricator, adjust until one drop per every other cycle
is used (as observed through sight glass.)
Shop Air
Input
Air On-
Off
Muffler
Filter (purge)
Pressure Gauge with adjust
Clean Dry Air (CDA) to
Air Blow Off
Lubricator
Lubricated
Air Output
(Sight Glass). When the oiler has run dry,
open the knob all the way until flow begins.
Once you have a steady flow, tighten knob
back down until you have one drop per
every other cycle.
Drop will form at end of cane shaped tube
visible inside glass.
Top of Lubricator
