Spicer Drive Axles Application Guidelines - Manual (Page 37)

AXAG-0200 June 2009 37
Refuse
Vocational Description
n 4x2 and 6x4 straight trucks , generally with automatic transmissions, used for residential refuse/recycle pickup.
n Typically a high number of stops and starts per mile
n 6x4 straight trucks operating in commercial/industrial pickup with approximately 1 to 3 miles between stops.
n 6x4 tractor / semi-trailers or 6x4 straight trucks with roll-off containers used for transfer/relocation of material. Stops are
typically more than 10 miles apart.
n 90% of loaded operation on road surfaces of concrete, asphalt or maintained gravel and up to 10% of loaded operation into
landfill, transfer or recycling sites
Typical Vehicle Types
Front/Rear/Side Loader Sewer/Septic/Vacuum Roll-Off Liquid Waste Hauler
Scrap Truck Transfer Vehicle Residential/Commercial PickupStreet Sweeper
Service Definitions
Operation 1
GVW - Straight truck vehicles used for residential and commercial pick-up of refuse and recyclables.
Grades up to 20%
Operation 2
GVW / GCW - Straight trucks with roll-off containers and tractor / semi-trailers used to transport material to
transfer stations, recycling facilities, or landfill sites. Grades up to 8%.
General Requirements and Recommendations
•
Additional ratios may be available and would require individual application approval.
•
Double reduction models offer added durability and gross weight capability in severe service applications where higher
numerical ratios are required.
•
Maximum allowable torsional driveline acceleration is 300 rad./sec./sec. within the defined operating speed range of the
engine manufacturer. The use of a soft dampened clutch with a manual transmission is recommended.
•
Single vehicle retarders can be approved with select axle models, provided the product selected meets all the application
requirements of the Refuse vocation.
•
All Electromagnetic retards, such as Telma, require individual application approval by the Dana CVP Application
Engineering Department.
•
Use of dual retarders (engine, exhaust, transmission, or electromagnetic) is only approved with tandem axle models with
gross axle weight ratings of 46,000lb or higher and maximum allowable retardation is limited to 100% of max. rated engine
torque.
•
This Guideline applies to vehicles operating in the U.S.A. and Canada only. Operation in other countries requires individual
approval by the Dana CVP Application Engineering Department.
•
For optimum axle shaft retention to the hub, .750” dia. studs or .625” dia. studs with tapered dowels are recommended for
single axles with GAWR ratings of 23,000 lbs and above or tandem / tridem axles with GAWR ratings of 44,000 lbs and
above. OEMs are responsible for axle shaft retention on all units not dressed by Dana. See page 80 for illustration.
•
Localized sources of heat, such as engine exhaust, that may cause high axle operating temperatures or reduced seal life are
to be avoided. Maximum intermittent drive axle surface temperature measured at input seal not to exceed 300° F for more
than 30 minutes. Maximum continuous operating temperatures not to exceed 250° F.
•
Dana CVP application approval is required for all vehicles with hybrid power systems.
Housing Structural Ratings
(see table of contents)