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Technical Specifications
Settings of Shutdown Switches and Safety Valve
Compressor
XAS 185 CD7
Temperature safety switch trip point
°F 248
°C 120
Safety valve effective opening pressure
psig 150
(bar) 10.3
(check stamping on valve)
Engine
XAS 185 CD7
Low oil pressure safety switch trip point
psig 12
(bar) 0.8
Temperature safety switch trip point
°F 233
°C 112
Compressor
Maximum effective pressure
psig 123
(bar) 8.5
Normal effective working pressure
psig 100
(bar) 7.0
Minimum effective working pressure
psig 58
(bar) 4.0
Typical oil content of the compressed air mg/m3 <5
Free air delivery at working pressure,
cfm 185
l/s 87
Engine
XAS 185 CD7
Make Caterpillar
Model C2.2
Type 4CYL./NA
Maximum operating speed (compressor loaded) rpm 2750±20
Minimum operating speed (compressor unloaded) rpm 1550±50
Fuel consumption (at full load) 2.7 gal/hr
Fuel consumption (at unload) 1.0 gal/hr
Capacities
Compressor oil system
gal 2
ltr 7.4
Engine lube oil system with filter
gal 2.5
ltr 9.5
Fuel tank
gal 25
ltr 94
Engine cooling system
gal 2.5
ltr 9.2
Compressor/Engine Specifications
Maximum loading speed and reference conditions 1,2).
1. Reference conditions as specified are measured at the air inlet grating outside the
canopy:
-Air intake pressure (absolute) 1 bar (14.5 psi)
-Air intake temperature 20°C (68°F)
-Relative air humidity 0%
2. Free air delivery is measured according to ISO 1217 ed. 3 1996 annex D which
corresponds to American ANSI PTC9.
With a tolerance of +/- 5% 25 l/s<FAD<250 l/s
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