Spicer Drive Axles Application Guidelines - Manual (Page 18)

AXAG-0200 June 2009 18
Heavy Haul - Additional Important Information
Important Notes
1.
The following optional components are approved by this Guideline. All options may not be available on every axle model.
a. Driver-Controlled Differential Lock
b. Oil Pump
c. Low Maintenance Wheel Ends ( LMS )
2. The use of NoSPIN differentials in any drive axles will result in the exclusion of axle shafts from warranty consideration.
Certain other carrier components may also be excluded from warranty consideration if their failure is deemed to be the result
of NoSPIN use. Depending on axle loading, the NoSPIN can cause all torque to be directed to one axle shaft resulting in
overload and potential failure. “NoSPIN ® ” is a registered trademark of Tractech, Inc., a Division of Dana Corporation.
3.
For certain suspension models, Dana may require the use of an increased housing wall thickness. Refer to the Housing
Structural Rating Section of this Guideline or contact Dana CVP Application Engineering for specific requirements.
4.
When loaded, vehicles with liftable axles are limited to a 5 MPH speed maximum when operating with these axles in the
raised position. Refer to the Housing Structural Rating Section for maximum allowable site travel ratings.
5.
Drive Axle application approval and allowable gross axle weight is based on the vehicle suspension selected. Dana CVP is
not responsible for the durability of any bracket attached to the axle housing(s) unless produced by Dana Holding
Corporation. In addition, Dana CVP is responsible for the integrity of the bracket attachment only if the bracket is installed
by Dana or if the bracket is installed by the vehicle manufacturer following detailed recommended procedures provided by
Dana through prior agreement.
6.
It is the responsibility of the vehicle manufacturer and/or the dealer to accurately convey all approved axle loading
information to the body builder if the chassis is sold as incomplete. It is also the responsibility of the final vehicle builder to
insure the assigned tagged values for GAWR and GVW / GCW do not exceed those limits approved by this vocational
Guideline. Dana is not responsible for non-compliance to this request.
7. Drive axles configured with single tires and outset wheels that increase track over standard require special consideration.
Allowable gross axle weight ratings may have to be reduced from the nominal rating to compensate for the increase in
housing stress created through the use of outset wheels. Refer to the Housing Structural Rating Section of this Guideline for
additional information regarding increased gross axle weight ratings based on increased track width due either to the use of
outset single or wide track housings .
8.
Oil pump and Driver Controlled Wheel Differential Lock(s) are recommended for Heavy Haul operations where vehicles
operate in areas of poor traction. The use of differential lock at speeds higher than 25 mph is not recommended by Dana. The
OEM is responsible for displaying in-cab information citing that the handling characteristics may be compromised when the
diff lock is engaged.
9.
For tridem equipped vehicles, the allowable gross axle load is to be equally distributed on all three axles. The use of liftable
or load reducing suspensions is not permitted.
10.
Vehicle testing of any nature voids the warranty on Spicer ® drive axles.
11.
For specific warranty coverage for the Heavy Haul vocation, see Spicer Warranty Guide (TCWY0900) .
12.
For approval of Spicer Transmission, Spicer Clutch, Spicer ® Driveline, Bendix ® Brake, and all other components contact
Spicer ® 1-800-621-8084.