Indicator Switch Wiring - Task Force Tips EXTEND-A-GUN XG12 Installation And Operating Instructions Manual

4) Determine the distance, D3 in inches, from the
mounting bracket to the
proposed installation. D3 MUST be between D3 min and D3 max.
5) Calculate forces on Brackets, Add D1 + D2 + D3 + 15.7 =
D1
6) Multiply L x 900
7) Divide M by D3
8) Subtract 900 from F1
NOTE: F1 MUST be less than 3100 lbf. F2
And the proposed installation MUST be capable of withstanding forces of this magnitude.
WARNING

5.0 INDICATOR SWITCH WIRING

The Extend-A-Gun latch mechanism contains a magnetic switch. This switch is intended to be used with a MONITOR EXTENDED
warning light. The magnetic switch in the Extend-A-Gun is a normally open switch, and the switch is closed when the Extend-A-Gun
is in the down position.
The enclosed relay MUST BE USED
86
MOUNT PANEL
LIGHT IN DASH
MOUNT RELAY ON
ELECTRICAL PANEL
1) Screw the threaded switch body into the tapped hole in the Extend-A-Gun latch casting after the Extend-A-Gun is
permanently installed. Be careful not to twist or break the wires.
2) Mount the relay on the electrical panel with the terminals accessible.
3) Drill a 1/2" diameter hole in the dash board for the panel light. Leave enough room for a 1-13/16" diameter label around the
light or a 2" wide x 1-1/2" high label next to the light. Apply one of the two warning labels and push the panel light through
the hole in the dash.
4) Connect the labeled wires on the switch to terminal #85 on the relay and ground respectively.
5) Connect the terminals on the panel light to terminal #87A on the relay and ground respectively.
6) Connect a wire from a "spare" position on the trucks circuit breaker panel to terminals #30 and #86. The circuit from the
"spare" position in the fuse block should only be energized when the ignition switch is in the ON position.
© Copyright Task Force Tips, Inc. 2002-2008
center of the lower mounting bracket
+ D2
L
M
Injury can result from an inadequately supported monitor. The monitor
mount must be capable of supporting the nozzle reaction force which can be
as high as 900 lbf. (400 kg). Flanges and pipe made from plastic are
inadequate for monitor mounting and must not be used.
87
V4155 Relay 12VDC
85
87a
10 Watt Coil Max
30
SWITCH IS CLOSED WHEN
EXTEND-A-GUN IS IN THE DOWN POSITION
center of the upper
for the
+ D3
x 900 = M
/ D3
F1
MUST be less than 2200 lbf.
to limit the current through the switch.
15VDC Max
SPARE
7
D3=
+ 15.7 = L
inch • pounds
= F1
- 900 = F2
EXTEND-A-GUN
SWITCH
BREAKERS
inches
inches
pounds
pounds
BATTERY
CIRCUIT