Specifications

Vancouver Police Service
Command
Production Specification
SVI #847 Page 87 of 107 September 18, 2012
GENERATOR MOUNTING
The generator shall be mounted in a lower exterior compartment on rubber vibration isolators. The compartment shall be
reinforced where necessary to hold weight of generator. A valve shall be provided on the generator oil drain outlet and
piped to underside of generator compartment with flexible hose and plug. The drain shall be located where easily
accessible for generator service.
FUEL SYSTEM
The generator fuel system shall be plumbed to the chassis main fuel tank. A separate fuel line shall be installed directly
from the tank, not connected to the truck engine fuel line system. The generator fuel line shall be properly protected and
secured inside of chassis frame. A shut-off valve shall be provided between the generator and fuel line as it enters the
compartment.
Fuel lines shall be protected from chafing at all wear points. If the fuel source is shared with the apparatus engine, a
separate fuel pickup system shall be provided that is arranged to ensure that the generator cannot utilize more than 75
percent of the fuel tank capacity.
A low fuel warning light shall be provided in the body of the apparatus, adjacent to the generator start/stop
controls.
STARTING SYSTEM
The generator starting system shall be powered by chassis battery system with heavy duty stranded copper cables. The
starter line shall by-pass the chassis master switch to permit generator operation when the apparatus engine is not
running. This starter line shall be of sufficient size for the generator, adequately protected and supported inside the
chassis frame area.
COOLING
Since the generator is radiator cooled, the ventilation of the generator is crucial. The installation shall permit operation of
the unit both while the apparatus is stationary and while it is in motion.
The cooling air flow shall be through screened panels in the compartment doors. Two (2) dual Flex-a-lite fans will be
installed to help direct the air flow through the compartment; one (1) fan will push the air into the compartment while the
other fan pulls the air out.
The additional fans shall provide adequate air flow for operation of the generator in stationary or moving, with the
compartment doors in the closed position.
EXHAUST SYSTEM
The generator exhaust system shall be equipped with a residential type muffler for maximum quieting, and black iron rigid
pipe to link the generator to the muffler.
The exhaust piping and discharge shall be located or shielded to prevent thermal damage to the apparatus or equipment.
The exhaust shall be piped to the exterior of the vehicle and discharged at a location away from any operator’s position.
Where parts of the exhaust system are exposed so that they can cause injury to operating personnel, protective guards
shall be provided.
Silencing devices shall be provided and shall not create exhaust back pressure that exceeds the limits specified by the
engine manufacturer.