MIL-DTL-62460 Steer Unit, Tracked Vehicle, Clutch Brake And Geared SteerThe steer unit covered by this specification is intended for use as a steer unit for the Armored Combat Earthmover M9 ACE. The steer unit is a two-speed, double-output gearbox, manually controlled for manipulating track laying vehicles, and includes a bevel gear set, clutch brake and geared steering systems, and full vehicle brakes.

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MIL-DTL-62460E

e. If sampling plan for conformance inspection is other than as specified (see 4.3.1).

f. Packaging requirements (see 5.1).

6.3 Supplementary engineering data. Engineering data is listed below:

Weight

590 kg (approximate)

Rated input torque

7600 N.m

Rated input speed

4300 rpm [Input speed is approximately

3900 rpm with M9 at 48 kilometer per

hours (km/h)]

Rated input power

265 horsepower (hp)

Gear ratios (input/output)

Geared steer: 1.304:1

Clutch brake: 1.926:1

6.3.1 Steer unit shaft rotation directions. With the M9 moving forward with no turning,

the steer unit shafts rotate as follows (as seen when looking at ends of shafts):

a. Input shaft - CW

*b. LH output shaft - CW

*c. RH output shaft - CCW

*The final drive assemblies in the M9 reverse the direction of rotation between the

steer unit and the track drive sprockets.

6.4 Subject term (key word) listing.

Auxiliary regulator

Control valves

Dynamometer

M9 ACE

Rotation

Shaft

6.5 Changes from previous issue. Marginal notations are not used in this revision to

identify changes with respect to the previous issue due to the extent of the changes.