Graymills 795-90716 LKN - Manual (Page 6)

Graymills Corporation – 3705 N. Lincoln Avenue – Chicago, IL 60613 – 773-248-6825 – Fax 773-477-8673 – www.graymills.com
5. Pneumatic Supply
All LKN units are supplied with a Filter-Regulator-Lubricator (FRL) with a master on/off valve. For optimal performance, connect
the largest air supply line available to the inlet of the FRL next to the master on/off valve.
When supplying air to the machine, do not use an air supply smaller than that of the machine’s FRL. The FRL of each
machine is chosen with respect to the working requirements of the machine. Using a lesser air supply could cause the
machine to underperform and/or malfunction.
Prior to connecting the air to the machine, add the appropriate amount of oil to the FRL. The lubricator must be filled as required
with SAE 10W oil or its equivalent and set approximately at 3 drops per minute. To add oil, twist bowl to the left and detach it from
the FRL.
DO NOT USE SYNTHETIC OIL in the machine’s FRL. Synthetic oil may cause the buna o-rings in the machine’s air valves
to swell and fail!
The pressure regulator is adjustable between 60-110 PSI. The recommended operating air pressure for LKN units is between 90-
100 PSI for optimal performance. Operating below the recommended pressure greatly reduces machine functionality. Do not use
air pressure greater than 110 PSI. A pressure gauge is provided on the FRL.
6. Electric Supply
All electrical connections to LKN units are made to the main control box located on the right side of the machine (from the front)
and are clearly marked. Regardless of voltage, all connections must be made to the rotary disconnect on the rear of the control
box. Voltage requirements will be displayed above the rotary disconnect on the outside of the enclosure as well as on the machine
nameplate.
Check the electrical specifications on the nameplate to assure proper connections.
On 3-phase models equipped with a Superflo pump, make sure that the motor rotation is correct; counter clockwise when viewed
from the top. To reverse rotation, switch any two of the 3 phase leads.
MACHINE STARTUP
1. Check to ensure that the Emergency Stop button in in the out position. Pull out button if
necessary.
2. Turn master air ON/OFF valve located on the FRL. Gauge on FRL should read between 90-
100 PSI.
3. Rotate disconnect on rear of control enclosure to ON position. The operator interface
screen will illuminate.
4. Press the RESET button on the front of the control enclosure. The screen will display an
error message regarding the fusible-link (where applicable). This is displayed due to a lack
of air in the system.
5. Press the RESET button again. The lid will open and the platform will raise to the top. The
ready light will illuminate.
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