Spicer Drive Axles Application Guidelines - Manual (Page 6)

AXAG-0200 June 2009 6
City Delivery
Vocational Description
n Pickup and delivery service within cities and/or suburban areas
n 100% of operation on road surfaces of concrete, asphalt and maintained gravel
n Three (3) miles between starts/stops (typical)
n 100% load going / up to 40% load return (typical)
Typical Vehicle Types
Auto Transport Truck Moving Van Refrigerated Truck Tanker Truck
Beverage Truck Municipal Truck Roll Back Auto Transporter Wrecker
Flatbed Truck Newspaper Delivery Stake Truck
Livestock Hauler Pickup and Delivery
Service Definitions
(vocational description applies to all operations.)
Operation 1
Grades up to 8%
Operation 2
Grades up to 12%
Operation 3
Grades up to 20%
General Requirements and Recommendations
•
Additional ratios may be available and would require individual application approval
•
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 all axle models, provided the product selected meets all the application
requirements of the City Delivery vocation.
•
The use of dual retarders (engine, exhaust, transmission, or electromagnetic) is only approved with tandem axle models with
gross weight ratings of 46,000 lb or higher and maximum allowable retardation is limited to 100% of max. rated engine
torque.
•
All Electromagnetic retards, such as Telma, require individual application approval by the Dana CVP Application
Engineering Department.
•
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. 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)