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Important Safeguards and Warnings.
The battery should be disconnected from the vehicle before working on the electrical system of the vehicle when
installing, servicing or removing Gatekeeper products.
All Gatekeeper employees or contractors who preform electrical work (install, service or remove a DVR, installing a
backup camera system for example) on a customer vehicle shall ensure that the battery in the vehicle is
disconnected before work commences.
Customers shall be responsible for addressing any systems on the bus which require attention as a result of
disconnecting the bus battery. This includes, but is not limited to, entering a radio theft code, programing radio
stations etc.
Remove Main Power Fuse or Disconnect Vehicle Batteries Prior To Any Electrical Work Or
Jump Starting The Vehicle.
Firmware updates (available from www.gatekeeper-systems.com when released) are system specific, firmware
updates must only be applied to the 304-SD system. If this firmware is applied to any other Gatekeeper Systems
DVR warranty will be void.
The 304-SD has an operating temperature range of -40° C to +65° C. It is good practice to ensure that the 304-
SD is mounted in an area in which acceptable temperature ranges are experienced.
Do not remove the cover of the 304--SD series as this will void any warranty.
When a system has shipped with a GPS antenna, ensure that the GPS antenna is mounted externally on the roof
of the bus, magnetic side down.
If at any time there is a question about how to proceed, contact Gatekeeper Systems Inc. at 1-888-666-4833 or 604-
864-6187 immediately for directions. Review all installation documentation, including technical bulletins. Additional
Technical Bulletins and Product Tutorials can be found in the Gate section of
www.gatekeeper-systems.com
