920-0214-00 Rev. E
Page 2 of 12
Installation & Mounting:
Before installation, examine the LED heads for transit damage.
Do not use damaged or broken parts.
Mounting:
The 3735 LED heads are surface mounted by screwing through the two front-
mounting bosses. The LED heads can be stacked vertically or horizontally to
provide higher intensity where required.
1.
The 3735 series LED heads should be mounted to a flat surface or one
with the least amount of curvature. The mounting location should allow
the maximum visibility of the warning device to other road users, while
allowing for sufficient wire access.
Important!
This unit is a safety device and it must be connected to its own separate, fused
power point to assure its continued operation should any other electrical accessory fail.
Wire functions are as follows:
Green Wire:
Ground. Connect to either the
battery negative terminal or a
suitable chassis point.
Red Wire:
Power. Switch to +12V to oper-
ate the flasher. Must be powered
through the fuse, located as
close to the battery terminal as
possible.
Yellow Wire:
Flash pattern set. Apply +12V
momentarily
(< 1 sec) to cycle through the
available flash patterns (see table
above). Holding power on this
wire for > 1 sec will select the
previous pattern.
Flash pattern
Patrón de intermitencia
Mode de clignotement
No.
Style
Flash rate
1.
Steady; Fijo; Fixe
N/A
2.
Single; Simple
60
3.
Fast Single; Simple
rápido; rapide
120
4.
Double; Doble
75
5.
Triple
75
6.
Quad; Cuádruple
75
7.
Quint; Quinta; Quintuplé
75
8.
Fast Double; Doble
rápido; rapide
130
9.
Constant Flicker;
Parpadeo constante;
Papillotement constant
1000
10.
Burst; Explosión
95
11.
Cycle; Ciclo
N/A
10.
Flicker
75
Flash Patterns:
The 3735 series LED heads can be configured to flash the fol
-
lowing patterns (in order below) by momentarily applying power
to the yellow wire as described in the wiring section. The LED
head must be powered through the green and red wires to allow
pattern selection.
2.
Using the supplied mounting gasket as a template, mark the
drill hole locations on the mounting surface. Details of the
hole locations are also given in Figure 1.
Caution:
When drilling into any vehicle surface, make sure the area is free from any electrical
wires, fuel lines, vehicle upholstery, etc. that could be damaged.
Figure 1 - Rear of LED head. Dimensions are in inches [mm].
3.
Drill mounting holes using a #31[0.120”] drill bit.
4.
Drill a 25/64”[10mm] hole for the wires protruding from the rear of the unit at
the location in Figure 1. Remove any sharp edges from this hole.
5.
Mount the LED Head along with the mounting gasket, routing the wires
through the 10mm hole. Use additional grommets or cable protection as
necessary to protect the wiring from any sharp edges. Secure the LED head
to the surface using the #6 self-tapping screws supplied.
Wiring Instructions:
The 3735 LED heads are self-flashing units. A 3A fuse must be used for each set of up
to 4 LED heads
6-32 x 1-1/4
SELF-TAPPING
SCREWS
MOUNTING
BRACKET
FIGURE 3 - A3730BKT
UNIVERSAL BRACKET
Caution:
Do not overtighten the screws.
Mounting Brackets (Optional accesso-
ries, sold separately.):
Mount the 3735 on the bracket as shown in the appropriate dia-
gram. Push the two 6-32 x 1-1/4” screws through the mounting
holes at the front of the unit and through the holes in the rubber
mounting gasket. Drive the self-tapping screws through the
holes and slots of the bracket.
Brackets with holes, instead of slots, do not require washers and
nuts once the screw has been torqued to 15 in-lbs. It is recom-
mended that excess screw length be trimmed.
