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

3.4.18.4 No load input torque (reverse rotation). The input torque required to maintain

750 rpm CCW (reverse) input shaft speed, with no load at the output shafts, shall not exceed that

specified in table IV for geared steer operations, or that specified in table V for clutch brake

operations (see 4.6.3.7).

3.4.18.5 Reverse output performance at high torque and high power. When the six

combinations of input torque and speed listed in table VI are applied to the steer unit input shaft

in the (CCW) reverse direction of rotation, the output torques and speeds shall be as specified in

table VI (see 4.6.3.9).

3.5 Nameplate. The steer unit shall have a nameplate marked with the National Stock

Number (NSN) and the manufacturer's name and part number (see 4.6.2).

3.6 Painting. Unless otherwise specified, steer units shall be cleaned, treated, and painted

in accordance with Drawing 13215E6600 (see 4.6.2).

3.7 Workmanship. Workmanship shall be of a quality to assure that steer units and

components are free from defects of a workmanship nature (see 4.6.2).

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are

classified as follows:

a. First article inspection (see 4.2).

b. Conformance inspections (see 4.3).

4.2 First article inspection. First article inspection shall be performed on two steer units

from the first ten produced when a first article sample is required (see 6.2). This inspection shall

include the examination of 4.4 and the tests of 4.6.3.1 through 4.6.3.9 (see table VIII).

4.3 Conformance inspection. Conformance inspection shall include the examination of

4.4 and the tests of 4.6.3.1 through 4.6.3.9 (see table VIII).

4.3.1 Sampling for examination. Unless otherwise specified (see 6.2), the sampling plan

specified herein shall be used. Samples for examination shall be selected in accordance with

table IX.

4.3.2 Acceptance tests (100 percent). Each steer unit shall be subjected to the

conformance tests specified in table VIII.