Operation - Champion R Series Operation & Service Manual

Operation

This compressor has been inspected, thoroughly tested and approved at the factory. For this unit to
give long satisfactory service it must be installed and operated properly. This compressor has been
designed for an 80%/ON – 20%/OFF duty cycle.
Engine Drive units are equipped with a pilot valve and head unloaders to provide continuous run
capabilities. The pilot valve acts as an automatic air switch allowing air to flow from the receiver to the
head unloader mechanism, thus actuating it. The pilot valve senses receiver pressure. When the
receiver pressure reaches the cut-out pressure setting of the pilot valve, the pilot valve opens and air is
released to the unloader mechanism. The compressor stops compressing air and runs unloaded until
the cut-in pressure setting of the pilot valve has been reached. At this time air is released from the
unloader mechanism and the compressor starts compressing again.
INITIAL START UP
1. Inspect unit for any visible signs of damage that would have occurred in shipment or during
installation.
2. Check compressor oil level. Add oil as required. See "Compressor Oil Specifications" Section.
NOTE: Do not mix oil type, weights, or brands.
3. Check engine oil level. Add oil as required. Consult engine manual for oil specifications.
4. Close receiver discharge ball valve.
5. Flip toggle lever on pilot valve to the "Manual Unload" position. See Figure 5.
R-Series Engine
Operation & Service
"MANUAL UNLOAD"
POSITION
Figure 5
16
"RUN"
POSITION
CQF3474 v.00
Jan.2018