Spicer Drive Axles Application Guidelines - Manual (Page 31)

AXAG-0200 June 2009 31
Motorhome
Vocational Description
n Vehicles generally used for non-commercial transportation and as traveling domiciles for families
n Loaded full time
n May pull small passenger car, boat, or pick-up truck
n Typically vehicle routes exceed 30 miles between starts and stops
n Annual mileage generally less than 30,000
n Typical operation is on paved roads and short distances within campgrounds and parks
n Equipped with Automatic transmissions
Typical Vehicle Types
Recreational Vehicles Integral Coach
Vehicle Configurations
Straight coach type vehicles with towing ability:
4 x 2 straight coach
6 x 2 (with fixed tag or pusher axles )
Service Definitions
Operation 1
Loaded full time. Infrequent grades up to 8%.
General Requirements and Recommendations
•
Additional ratios may be available and would require individual application approval.
•
Single vehicle retarders can be approved with all axle models, provided the product selected meets all the application
requirements of the Motorhome vocation.
•
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.
•
OEM responsible for isolating vehicle to prevent transmission of gear noise and vibration into passenger cabin.
•
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)