TM 9-1829A, April 1944 80/100 2021-07-07
Chapter 8: Stewart-Warner recorders
(including hour meters)
45. Description
a. A recorder consists of an odometer assembly, a drive gear, and a driven gear housed in a die cast case. A
female thread connection is provided at the left end of the recorder for attaching the flexible shaft. A male
threaded sleeve is provided at the right end for connecting a flexible shaft leading to a tachometer, where
desired.
Figure 118: Stewart-Warner hour meter and mileage recorder
Recorders are used to accurately record engine motor mileage, wheel mileage, engine crankshaft revolutions,
or hours of engine operation (based on average engine speed).
Figure 119: Stewart-Warner recorder, disassembled
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