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.
to limit the current through the switch.
The enclosed relay MUST BE USED
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.
7
F1
be less than 3100 lbf. F2
be less than 2200 lbf.
And the proposed installation MUST be capable of withstanding forces of this magnitude.
MUST
MUST
5)
Calculate forces on Brackets, Add D1 + D2 + D3 + 15.7 =
6)
Multiply L x 900
7)
Divide M by D3
8)
Subtract 900 from F1
D3=
inches
D1
+ D2
+ D3
+ 15.7 = L
inches
L
x 900 = M
inch • pounds
M
/ D3
= F1
pounds
F1
- 900 = F2
pounds
4)
Determine the distance, D3 in inches, from the
to the
for the
proposed installation.
center of the upper
mounting bracket
center of the lower mounting bracket
D3 MUST be between D3 min and D3 max.
NOTE:
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.
WARNING
5.0 INDICATOR SWITCH WIRING
V4155 Relay 12VDC
15VDC Max
10 Watt Coil Max
EXTEND-A-GUN
SWITCH
MOUNT RELAY ON
ELECTRICAL PANEL
BATTERY
SPARE
CIRCUIT
BREAKERS
87
86
85
30
87a
SWITCH IS CLOSED WHEN
EXTEND-A-GUN IS IN THE DOWN POSITION
MOUNT PANEL
LIGHT IN DASH
© Copyright Task Force Tips, Inc. 2002-2008
