Hale CAFS Attack - Manual (Page 58)

❑ Routine Maintenance
58 CAFS Bottled-Air Operator/s Guide
p/n: 029-0020-85-0
❑ If an approved foam concentrate has been left in the system, operate
the FoamLogix to move the foam concentrate and prevent jelling.
Annually
❑ See your specific FoamLogix manual, provided with the system, for
maintenance procedures.
❑ Verify foam feedback calibration.
6.2 REPLACE FILTER ELEMENT
A visual pressure indicator
(plunger) shows the contami-
nated build up to alert the
operator when the filter ele-
ment must be changed. (See
Figure 6-1: “Filter Pressure
Contamination Gauge.”)
The element must be changed
when the indicator plunger
reaches to the top of the sight
glass.
WARNING !
THE FILTER SEES HIGH PRESSURE OF 4,500 PSI (310 BAR), WHICH MUST
BE RELIEVED BEFORE ATTEMPTING TO CHANGE THE FILTER ELEMENT.
TO RELIEVE PRESSURE, SEE HEADING 6.3 “RELIEVING HIGH PRESSURE”
ON PAGE 59.
1. Shut-down the CAFSAttack system. (See Section 5a.2 “Shutting-down
CAFSAttack,” on page 56.)
2. Relieve the system HIGH pressure. See heading 6.3 “Relieving HIGH
PRessure” on page 59.
3. Using an appropriate wrench (1.5” / 38 mm hex), unscrew the element
casing and remove the filter element.
4. Clean the case and the sealing area around the filter housing base,
insert the replacement element (Class1 p/n: ????????).
Figure 6-1: Filter Pressure Contamination
Gauge