MIL-R-52499C(ME)
4.5.2 Tests.
4.5.2.1 Test conditions. Unless otherwise specified in a test, tests shall be performed
without shelter and at the climatic conditions existing at the place of test. The roller shall operate
as specified herein without maintenance other than the contractor's recommended normal scheduled maintenance as established by a maintenance schedule prepared and submitted by the contractor prior to test. Prior to testing, lubricate the roller with military lubricants as specified in 3.18. After checking and servicing the roller, connect the lunette of the roller drawbar to the drawbar or pintle of the test towing unit. When a remote control system is furnished
(see 3.12.5 and 6.2) the test specified in 4.5.2.2 shall be conducted using the remote control
system to control the roller operation.
4.5.2.2 Towing. Start the engine using the engine controls and engage the vibrating mechanism. Tow the roller over not less than 6 inches (type I) or 12 inches (type II) of loose dirt fill or plowed earth at a speed of not less than 1-1/2 miles per hour and not more than 3 miles per hour for 10 successive passes. One pass shall consist of not less than 100 linear yards. Repeat this test for 20 operating hours. Stop the engine once during each 2-hour operating period and restart it after a 5-minute shutdown period. During the operational test determine the VPM frequency range.
4.5.2.2.1 Failure criteria. Inability to start the engine using only the engine controls, inability to engage or disengage the vibrating mechanism, inability of the cleaners to prevent accumulation of dirt as specified in 3.10, inability to stop or restart the engine using only the engine control system, leakage of fuel or lubricants, or permanent deformation or damage shall constitute failure of this test. Inability to vary the VPM frequency range as specified (see 3.13) shall constitute failure of this test.
4.5.2.3 High temperature operation. The contractor shall furnish test data to prove that the roller is capable of operating in an ambient temperature of 120° F without exceeding the engine manufacturers recommended limits for radiator top tank temperature of applicable engine sump and gallery oil temperatures and hydraulic component manufacturers hydraulic fluid temperature limits.
4.5.2.3.1 Failure criteria. Failure of the contractor to provide test data or manufacturer's certification (see 3.12) shall constitute failure of this test.
4.5.2.4 Test procedures of lifting provisions. Test procedures of lifting provisions shall be as follows:
a. Lift the roller and hold in suspension in its normal travel position using slings that converge not more than 24 feet above the lowest extremity of the roller. Determine the forward angles of application for each provision. Measure the clearance between each sling and the roller. Measure eye openings and clearance dimensions of the provisions. Measure the load carried by each provision.
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