Specifications

Loveland Fire/Rescue
Pumper
Production Specification
SVI #769 Page 41 of 125 June 17, 2010
..\4) Pricing & Change Orders\Production Change Order.pdf
PARK BRAKE CONTROL
A Meritor-Wabco manual hand control push-pull style valve shall operate the parking brake system. The control shall
be yellow in color.
The parking brake actuation valve shall be mounted on the left hand dash to the right of the steering column within easy
reach of the driver.
REAR BRAKE SLACK ADJUSTERS
The rear brakes shall include Meritor automatic slack adjusters installed on the axle which features a simple, durable
design offering reduced weight. The automatic slack adjusters shall feature a manual adjusting nut which cannot
inadvertently be backed off and threaded grease fittings for easy serviceability.
AIR DRYER
The brake system shall include a Wabco System Saver 1200 air dryer with an integral 100 watt heater with a Metri-Pack
sealed connector. The air dryer incorporates an internal turbo cutoff valve that closes the path between the air
compressor and air dryer purge valve during the compressor "unload" cycle. The turbo cutoff valve allows purging of
moisture and contaminants without the loss of turbo boost pressure. The air dryer shall be located on the right hand
frame rail forward of the front wheel behind the right hand cab step.
FRONT BRAKE CHAMBERS
The front brakes shall be provided with MGM type 24 long stroke brake chambers.
REAR BRAKE CHAMBERS
The rear axle shall include a piston style MGM 30/30 long stroke brake chambers which shall convert the energy of
compressed air into mechanical force and motion. This shall actuate the brake camshaft, which in turn operates the
foundational brake mechanism forcing the brake shoes against the brake drum.
AIR COMPRESSOR
The air compressor provided for the engine shall be a Wabco
®
SS318 single cylinder pass-through drive type compressor
which shall be capable of producing 18.7 CFM at 1200 engine RPMs. The air compressor shall feature a higher delivery
efficiency translating to more air delivery per horsepower absorbed. The compressor shall include an aluminum cylinder
head which shall improve cooling, reduce weight and decrease carbon formation. Superior piston and bore finishing
technology shall reduce oil consumption and significantly increasing the system component life.
AIR GOVERNOR
An air governor shall be provided to control the cut-in and cut-out pressures of the engine mounted air compressor. The
governor shall be calibrated to meet FMVSS requirements. The air governor shall be located on the air cleaner bracket on
the right frame rail behind the officer step.
MOISTURE EJECTORS
An automatic moisture ejector with a manual drain provision shall be installed on the wet tank of the air supply system.
Manual pet-cock type drain valves shall be installed on all remaining reservoirs of the air supply system.