Printable Page w/ Drawings (PDF) - Hackney Emergency Vehicles

Air & Light
Model DF0773A
Salisbury Fire Department
Salisbury, Maryland
Salisbury has added another special purpose Hackney to their fleet, this one for supplying high volume
breathing air support and on‐scene lighting.
The 12.75‐ft body is mounted on a Freightliner M2 cab/chassis with Cummins ISC‐330 engine; Allison
3000EVS transmission; 12,000# front axle and 23,000# rear axle. Vertical exhaust prevent collection of
noxious gases from accumulating beneath the awnings when they are deployed. Hackney’s exclusive
drop/pinch frame was specified to permit mounting of the generator inside the left front compartment
for protection against road spray.
The primary mission of the vehicle is to provide onscene
recharging of 4500 psi SCBA’s. That is
accomplished using a Scott 26 cfm air compressor
coupled with a RevolveAir fill station. The system
permits a single operator to fill not less than 20
SCBA’s an hour, based on an average 500 psi
residual. The rear compartment carries forty (40)
spare SCBA bottles, making it highly unlikely that
the department will ever deplete air supplies to
firefighters.
A wheelbase of only 154” provides a very short
turning radius, allowing the vital service vehicle to get
into and out of very tight locations.

Following is a list of just some of the features:
• All roll‐up doors (7)
• Whelen NFPA 1901 all‐LED Warning Light Package
• PowerCall electronic siren
• 40kw, 3‐phase Onan PTO generator mounted inside the left front compartment (not beneath the body)
• Hannay 240VAC cord reels (2) with four‐outlet junction box on the end of 200‐ft 10/4 cable
• Mulitple 120VAC power outlets
• Will‐Burt light tower with (4) 900 watt Havis MagnaFire flood lights
• Whelen Pioneer LED flood lights –(2) each upper side body and (2) rear
• LED tail lights with individual stop/tail; amber turn; and white backup lamps
• Auxiliary upper stop lights activated by Jake brake
• LED clearance lights
• Ground lights beneath cab and body
• LED traffic advisor light bar
• Recessed LED compartment light strips
• Interlock system that prevents the vehicle from being moved when light tower is deployed
• Color backup camera
• Vehicle Data Recorder – speed, acceleration, deceleration, engine RPM’s, ABS event, seat occupancy, master
optical warning switch, park brake, service brake, time, date, engine hours
• Grover air horns mounted on left and right side of hood
• Kussmaul 1200 battery conditioner and 20‐amp auto‐eject shorepower
• Tire pressure monitors
• Drop/pinch frame
• Drop‐down step platforms on the and right rear compartments to access upper storage areas
• Slide‐out tool board
• Slide‐out rack for storage of four complete SCBA’s
• Forty (40) spare SCBA bottle storage tubes
• 66” wide x 9” high x 44” deep storage compartment above ASME vessels
• Electric deploy awning left and right side –full body length
• Chevron rear body stripping
• Custom stripping and lettering
Four (4) 6000 psi ASME storage vessels
are provided for reserve breathing air.
The automatic fill system continually
senses stored air pressures and constantly
tops off each vessel as required. Note
that the air purification filters are
conveniently located for fast and simple
replacement. The computerized
monitoring system alerts the technician
when filters require replacement. The
40KW generator is located inside the
front compartment with breakers and
controls facing the operator.
Salisbury Fire Department
Air & Light