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R-Series Electric
15
CQF3473 v.01
Operation & Service
April 17, 2018
Operation (continued)
3. Check compressor oil level. Add oil as required. See “Compressor Oil Specifications” Section.
NOTE: Do not mix oil type, weights, or brands.
4. Activate main disconnect switch.
5. “Jog” motor and check for proper rotation by direction arrow. If rotation is wrong, reverse input
connections on the magnetic starter.
6. Close receiver discharge ball valve and start the compressor.
7. With receiver ball valve closed, let the machine pump up to operating pressure.
8. Check for proper operation of the pressure switch.
a. When the air receiver pressure reaches the cut-out setting of the pressure switch, the
machine will stop.
b. Open the receiver ball valve slowly, allowing pressure in the receiver to drop.
c. When the air receiver pressure drops to the cut-in setting of the pressure switch, the
machine will start.
d. Repeat steps a. thru c. three times.
9. Check for proper operation of the head unloaders (if equipped).
a. Open the ball valve located next to the pilot valve.
b. When the air receiver pressure reaches the cut-in setting of the pilot valve, the head
unloaders will activate. The air compressor continues to run, but air compression is stopped.
c. Open the receiver ball valve slowly, allowing pressure in the receiver to drop.
d. When the air receiver pressure drops to the cut-out setting of the pilot valve, the head
unloaders will de-activate. Air compression will resume.
e. Repeat steps b. thru d. three times.
10. Check for proper operation of any options.
11. When the initial run period has shown no operating problems, shut unit down and recheck oil level.
12. Open receiver ball valve. The air compressor unit is now ready for use.
This unit can start automatically without warning.