Spicer Heavy-Duty Tridem Axles User Manual

Spicer, Heavy-duty tridem axles

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T69-170HP
T78-190P

T78-590P

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

Spicer

®

Heavy-Duty Tridem Axles

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.

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