TM 55-2210-224-34
3-10.
DUPLEX AIR GAGES (cont)
TEST
11.
If duplex air gage (11) is removed from the locomotive, test by the following:
a.
Use a deadweight tester and test duplex air gage (11) at half scale and full scale. Compare amount of
weight applied to the reading shown on gage.
b.
Adjust pointer as follows:
(1)
Use a pointer puller and remove pointer.
(2)
Apply 30 psi (207
kPa) test pressure to gage and install pointer. Set pointer on the 30-psi (207 kPa)
mark on the dial.
(3)
Check the accuracy over the entire scale. The gage shall be accurate within
ñ 1.5%.
c.
If duplex air gage (11) is not accurate within
ñ 1.5%, further repair is required. Send duplex air gage to a
calibration facility.
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