ΙΙ
-41
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
ΙΙ
ΙΙΙΙ
ΙΙ
ΙΙ
: Installation
Table 2-1
S
E
Z
I
S
E
L
B
A
C
R
E
W
O
P
Y
R
A
M
I
R
P
D
E
D
N
E
M
M
O
C
E
R
0
.
3
l
e
d
o
M
0
.
5
&
3
.
3
s
l
e
d
o
M
h
t
g
n
e
L
m
u
m
i
x
a
M
G
W
A
6
G
W
A
4
s
s
e
L
r
o
)
M
8
.
1
(
t
F
6
G
W
A
4
G
W
A
0
)
M
6
.
4
(
t
F
5
1
o
t
)
M
8
.
1
(
t
F
6
G
W
A
0
G
W
A
0
0
r
e
g
n
o
L
r
o
)
M
6
.
4
(
t
F
5
1
RFI/EMI
Electrically shielded cables for control unit,
flowsensor, foam discharge multiplexing
display units and pressure transducers are
provided with the Hale FoamMaster system.
The cables are 100% electrically shielded to
eliminate the potential problem of EMI/RFI.
Proper installation of system components
and cables along with proper grounding will
limit radio interference caused by the Hale
FoamMaster system. Additionally, make
sure radio cables and hardware are not
located in the immediate area where Hale
FoamMaster equipment is mounted.
Make sure the flowsensor tee is grounded.
If metal piping is used sufficient grounding
may be present. However, Victaulic joints,
plastic pipe and rubber mounted pumps
interfere with proper grounding and an
additional ground strap may be required. If
necessary, connect a flat braided ground
strap at least ¼ inch (6 mm) wide from the
flowsensor tee to the apparatus frame to
ensure proper grounding. The #6-32 UNC
screw that holds the spade terminal to the
flowsensor tee can be used to attach the
ground strap to the tee (refer to figure 2-11).
Making round coils of extra control and
flowsensor cables in the pump
compartment can act as an antenna.
While the control and flowsensor cables
cannot be shortened, various lengths of
cable are available to minimize the "extra"
cable in the truck. When routing control
and flowsensor cables take care to avoid
routing them next to antenna wires, radio
power lines and radio components. When
there is extra cable, double the cable back
on itself and secure with plastic wire ties in a
flat bundle instead of making a round coil.
(See Figure 2-32)
REMOTE ACTIVATION SWITCH
Choose a location in the apparatus
personnel compartment for mounting the
remote activation switch. Make sure the
switch is accessible to the operator without
interfering with other controls on the
apparatus.
To install the remote activation switch use
the following procedures:
1. Determine location on panel where
switch is to be mounted. Refer to figure
2-33 and layout panel cutout and
mounting holes as shown.
2. Make panel cutout and drill the four
0.203 inch (5 mm) diameter thru holes.
3. Insert switch assembly through panel
cutout and secure to panel using the
#10-24 UNC x ½ inch long screws and
#10-24 UNC nuts provided.
NOTE:
When making cable connection
make sure the cable is routed by the
shortest most direct route. A maximum
of 40 feet (12 meters) of remote cable
may be used.
Figure 2-32. Extra Cable Storage
DON'T
MODULAR CABLE
MODULAR CABLE
DO
WIRE TIES
