Spicer Heavy-Duty Tridem Axles User Manual

Spicer

Heavy-Duty Tridem Axles

T69-170HP T78-190P

160,000 lbs. [72,575 kg] – 240,000 lbs. [108,862 kg]

T78-590P

Heavy Duty Tridem Axles for On/Off and Off-Highway Operations.

Ideally suited for demanding vocational applications including construction, heavy haul, logging, oil field, and mining.

Features

•

Broad ratio coverage for optimum performance across a variety of vocations.

•

Designed for greater strength to maximize durability and reliability in even the toughest applications, including:

– Extra wide face-width primary and helical

gearing. – High capacity bearing and gearing systems. – An integrated ring gear and wheel differential

mounting system that eliminates bolted joints. – Large wheel differential gearing. – An integral pinion cage and carrier that also

eliminates a potential leak path. – Heat-treated steel differential cases for

strength and wear resistance. – Heavy wall housings.

•

Dana patented exclusives include:

– A threaded input adjuster that precisely sets

end play in the power divider without the use of shims, eliminating a potential leak path and improving reliability.

– A hypoid gearing design that improves

interaxle driveline angles to minimize vibration.

–

An on-demand lube pump that reduces temperatures as much as ten percent, extending lubricant life and reducing internal friction and wear.

– Threaded differential bearings with integrated

adjusters that maximize life by providing continuous adjustments and allowing precise settings of gears and bearings.

•

Options include driver-controlled wheel differential lock for maximum traction over slippery, loose or uneven surfaces.

T69 - 170 H P

Spicer

Heavy-Duty Tridem Axles

Available Options Include:

•

Driver-controlled wheel differential lock for maximum

Nomenclature

traction. For T78-190P and T78-590P models, the wheel differential lock feature can be retrofitted even after the vehicle is built or in use.

•

Carrier integrated retarder mount means more drivetrain options with increased strength, brake performance, and reduced complexity.

•

Wide-track axles available for improved stability.

Tridem Axle

GAW Rating x 1000 lbs.

Gear Type 1 - Standard Single Reduction 5 - Planetary Double Reduction

P - Standard Lube Pump Heavy Wall Design Level Head Assembly Series

Specifications

MODEL SERIES (HIGHWAY)* RATIOS

T69-170HP 160,000 lbs. 3.07, 3.21, 3.42, 3.58, 3.73, 3.91, 4.10, 4.30, 4.56, 4.78, 5.25, 5.38, 5.57, 6.14, 6.83, 7.17 T78-190P 240,000 lbs. 3.42, 3.58, 3.73, 3.91, 4.10, 4.30, 4.56, 4.78, 5.25, 5.38, 5.57, 6.14, 6.83, 7.17 T78-590P 240,000 lbs. 4.75, 4.99, 5.19, 5.44, 5.70, 5.98, 6.34, 6.65, 7.30, 7.48, 7.75, 8.55, 9.51, 9.97, 10.90

*Ratings vary by ratio and duty cycle. Refer to publication AXAG0200 or contact Dana CVS Application Engineering for more information.

MAX. GAW RATING

Extra wide face-width gearing provides greater strength for increased durability at higher loads.

Patented, on-demand lube pump for optimal spin-out protection without the added heat.

For spec‘ing or service assistance, call 1-877-777-5360 or visit our website at www.dana.com

Dana Commercial Vehicle Products Group

3939 Technology Drive Maumee, Ohio, USA 43537

Larger wheel differential gearing means maximum strength and reliability.

www.dana.com

All applications must be approved by the Application Engineering Department. Speciﬁcations and/or design are subject to change without notice or obligation. Printed in USA AXSL-0013 02/09