Pathfinder
®
Models SMC14 and SML4-30
6
Models SMC14 and SML4-30
Federal Signal
www.fedsig.com
Operating the Unit
All controls utilized during normal operation of the SignalMaster
®
directional light are located on the front
panel of the control unit. The LED display simulates the light pattern being executed by the directional
light. See Figure 4.
Figure 4 SignalMaster LED display
Slide Switch.
• LEFT (Position 1): In this position, the driver side unit produces a left arrow flashing pattern, instructing
traffic to move left.
• CENTER OUT (Position 2): In this position, a center out flashing pattern is produced on both the driver
and passenger side units, instructing traffic to move around either side of the vehicle.
• RIGHT (Position 3): In this position, the passenger side unit produces a right arrow flashing pattern,
instructing traffic to move right.
WARN switch
When this switch is pressed, an alternating pattern is produced. The driver side unit activates alternately
with the passenger side unit. This pattern will override any of the slide switch functions.
Maintaining the Unit
Cleaning the Lens
CRAZING/CRACKING Crazing (fine cracks) of lenses causes reduced effectiveness of the light.
Do not use cleaning agents (which cause crazing) such as strong detergents, solvents, or
petroleum products. If crazing of the lenses does occur, the reliability of light for emergency
signaling purposes may be reduced until the lenses are replaced.
CLEANING the POLYCARBONATE LENSES: To extend the life of this device, periodic cleaning
is necessary. Clean the lens with a mild, non-abrasive, neutral-pH cleaning agent and a soft,
clean cloth. Rinse the device thoroughly to ensure that no cleaning agent residue remains. To
avoid water spots, dry the device with a soft clean cloth. Failure to follow this precaution can
cause crazing or cracking of the lens/dome and voids the warranty claims for the light.
Use a mild, non-abrasive, neutral-pH cleaning agent and a soft, clean cloth when cleaning the lighting
system. The use of strong, non-neutral-pH cleaners voids the warranty. Should fine scratches or a haze
appear on a lens, they can ordinarily be removed with a non-abrasive, high quality, one-step, automotive
paste cleaner/wax and a soft cloth.
