Hale CAFSPro - Manual (Page 41)

Operation ❑
41
CAFSPro User Operation Manual
p/n: 029-0020-75-0
When a suitable booster tank with direct fill is available, running the pressur-
ized water source into the tank, and running the CAFSPro system while tak-
ing suction from the tank, eliminates the problem of higher water pressure
than desired.
Gating the pump discharges reduces hand line pressure when water is flow-
ing. However, when the nozzle is closed momentarily, line pressures rise to
meet master pump pressure. This makes nozzle reaction excessive when
the nozzle is again opened.
Figure 4-5: CAFSPro Typical Operating Ranges
Note: CAFS hose lines store energy in compressed air when the nozzle is closed
and, nozzle reaction, when opened, can be severe.
WARNING !
DO NOT USE AN AUTOMATIC PRESSURE GOVERNOR IN PRESSURE CON-
TROL MODE WITH CAFS. THE PRESSURE GOVERNOR RESPONDS TO
CHANGES IN PRESSURE AND COULD, WITHOUT WARNING, REDUCE
ENGINE SPEED. THIS REDUCTION IN SPEED COULD REDUCE THE AVAIL-
ABLE AIR CAPACITY OF THE CAFS SYSTEM.
INADEQUATE AIR SUPPLY CREATES AN INEFFECTIVE FIRE FIGHTING
STREAM THAT COULD PLACE FIRE CREWS AT GREATER RISK.
ALWAYS OPEN NOZZLES SLOWLY WHEN FLOWING A CAFS HOSE LINE TO
PREVENT EXCESSIVE NOZZLE REACTION FORCE. ALSO SEE SECTION 1
“SAFETY PRECAUTIONS” ON PAGE 7.
Note: The compressor clutch engages when the pump shifts from ROAD to
PUMP.
Pump
Model
Ratio
Engine
RPM
Pressure
PSI (Bar)
QMAX
23 1050 100 (7)
21 1170 100 (7)
QPAK
23 1155 100 (7)
21 1285 100 (7)
QFLO
23 1709 100 (7)
21 1235 100 (7)