MIL-DTL-3100H
The apparatus shall be equipped with automatic devices to make a permanent record of ambient
temperature, speed, applied load and hours (elapsed time) of operation.
4.6.4.1.2 Procedure. The wheel assembly shall be mounted and centered for minimum
runout. The tire may be ground, if necessary, to assure a radial runout of not more than 0.031 in.
total indicator reading. The wheel shall be loaded radially against the drum, and run continuously
for 48 hours at loads specified in table II at not less than 10 mph.
4.6.4.2 Six-hour drum. To determine conformance to 3.5.1.b, the wheel assemblies shall
be tested as follows.
4.6.4.2.1 Apparatus. The apparatus shall be as specified in 4.6.4.1.1.
4.6.4.2.2 Procedure. The wheel assembly shall be mounted and centered for minimum
runout. The tire may be ground, if necessary, to assure a radial runout of not more than 0.031 in.
total indicator reading. The wheel assembly shall then be loaded radially against the drum and run
continuously for 48 hours at not less than 30 mph in accordance with the specified load schedule
(see 3.5.1.b and table II). The test may be stopped for not more than 5 minutes to change
loading.
4.6.4.3 Tire inspection. At the conclusion of the test in 4.6.4.1 or 4.6.4.2, the tire shall
be removed from the wheel in a way that will allow for the detection of defects specified in 3.5.1.
The tire shall be sectioned to determine conformance to 3.5.1. The wheel shall be inspected for
signs of loss of adhesion per 3.5.1.
4.6.5 Adhesion. To determine conformance to 3.5.2, the wheel assemblies shall be tested
as specified herein.
4.6.5.1 Apparatus. A tension testing machine, or apparatus having a power actuated
clamp, shall be used to apply, measure and permanently record the amount of force required to
strip the tire from the metal wheel to which it is bonded. The clamp shall travel at a rate of not
more than 6 inches per minute maximum. The machine shall be provided with means for
measuring, and permanently recording the amount of tension applied. The hub and spindle
assembly shall be provided for mounting the tire and permitting it to rotate freely about a fixed
axis of rotation.
4.6.5.2 Procedure. The tire shall be prepared for testing by cutting and clamping in
accordance with figures 1 and 2. The tire shall then be mounted on the hub and spindle assembly,
and positioned in such a manner that its axis of rotation will remain parallel tot he line of
separation during testing, and that the applied force will be normal to the wheel at the line of
separation. The tire bonded to curved axial surfaces may be cut to not less than the width that is
normal to the applied force. With the free end of the tire gripped by the machine clamp, the
11
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business