TB 9-6685-316-50
WARNING
This procedure involves pressures that could be hazardous to
personnel.
Exercise due caution at all times while
performing checks. Ensure that system is free of air.
(2) Level TI and deadweight pressure tester (A4) (standard) using bench level
(B1).
(3) Install low-range pistons in cylinders of TI and standard and place 95-psi
weight (100 psi weight combination for model 1305B-100) on low-range piston of TI and
standard.
CAUTION
Continuously rotate pistons and weights in deadweight
cylinder housings whenever pistons are inserted or removed
from housings, or when applying Pressure, to prevent scoring
or sticking in housing and damaging the piston guide and
cylinder.
(4) Apply pressure to equipment setup, using hand pump on TI and/or standard
until bottom surface of either weight table is 1/16 inch above either the TI or standard
cylinder housing (fig. 4).
(5) Visually inspect equipment for leakage.
CAUTION
Avoid sudden changes in pressure. Do not abruptly release
pressure from system and do not remove weights from piston
until all pressure in system has been released.
(6) Release pressure from equipment setup, and replace the 0-600 psi pressure
gage with 0-10,000 psi pressure gage (fig. 4). Remove low-range pistons and install high-
range pistons in the TI and standard cylinder housings. Place 475-psi weight and one
500-psi weight on each piston.
WARNING
To prevent injury to personnel and damage to equipment,
exercise extreme caution when applying high pressure to
system and avoid any sudden changes in pressure.
(7) Apply pressure to TI while continuously rotating weights and pistons until
(8) Visually inspect equipment setup for leakage.
(9) Release pressure from TI and place enough weights on each piston to test at
capacity (10,000 psi) and repeat (7) and (8) above. The system will not leak.
(10) Release pressure by slowly opening pressure relief valve (fig. 4).
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