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|  MIL-D-45502B
used. The booster takeoff assembly shall be loaded to simulate booster
takeoff assembly function conditions. Acceleration time, steady rate
rate, and stopping time shall be taken and recorded for the last duty cycle
of each fourth series. At the completion of the endurance test, drives
shall be disposed of as specified in the contract.
4.6.2.7 Interchangeability test.
4.6.2.7.1 In plant.
4.6.2.7.1.1 Drives. Drives shall be tested by disassembling and then
reassembling the parts specified below. Parts shall be disassembled from
the drives and identical parts placed together and mixed. Drives shall
then be reassembled without selective fitting, except that hand refine-
ment of parts will be allowed on not more than one drive provided that no
part is altered beyond drawing requirements. Any commercial part rendered
unserviceable by disassembly shall be replaced without penalty to the
interchangeability test. The stacking order of the clutch disks (7268776),
clutch disk assemblies (7268811), and drive shims (7268672, 7268673 and
7268674) shall not be disturbed during the interchangeability test.
List of Interchangeable parts
(7269718)
Cluster, gear assembly
Cover assembly, brake
(7790388)
(7268741)
Gear, cluster, front
(7790172)
Lever assembly, brake
(7269707)
Retainer, shaft assembly
Shaft Assembly, idler gear
(7793250)
( 7268810)
Solenoid, brake
(7269706)
Spacer, gear
(7268874)
Spring, solenoid cover
Support, gear cluster
(7269805)
Washer, thrust
(7269805)
4.6.2.7.1.2 Concurrent repair parts. Concurrent repair parts shall
be tested by disassembling 2 drives previously tested in 4.6.2.7.1.1 and
then reassembling them using the concurrent repair parts. No hand re-
finement of parts will be allowed and the assembled drives shall operate
and function as intended. This test may be performed indepently of the
drive interchangeability testing specified in 4.5.3.7.l.l and at more
frequent intervals using accepted drives taken from current production.
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