TEST CHAMBER ASSEMBLY, MODEL 452
OPERATION UNDER USUAL CONDITIONS
The test chamber requires bench space approximately 36 inches wide by 30 inches deep with a
110 VAC, 60 Hz power source within six feet of the unit.
The test chamber shall be contained in a building that meets storage requirements outlined in TM
10-1670-201-23, T.O. 13C-1-41, or NAVAIR 13-1-17, with an altitude between 0 (feet) to 30,000
(feet) above MSL. Temperature shall be between +41F (+5C) and +122F (+50C).
ASSEMBLY AND PREPARATION FOR USE
The test chamber assembly carrying case is designed for movement and storage and no external
packaging is required.
Test chamber and carrying case weighs 70 lbs. The mounting base with
attached components weighs 50 lbs. Use two persons or lifting device when
lifting to prevent injury to personnel.
Open test chamber assembly case cover. Lift and remove test chamber from carrying case (WP
0003 00). Place test chamber on work bench.
Check for loose or missing attaching hardware or decals. Insure that all adjustable knobs and
switches are present and operate without binding. Check for broken glass on test chamber
control assembly gages. Check for damage to altitude chamber gasket. Retain carrying case for
future movement of unit. Report any discrepancies on a Supply Discrepancy Report (SDR),
formerly known as a SF 364 Report of Discrepancy (ROD).
INITIAL ADJUSTMENT BEFORE USE
Do not transport or store AR2 without piston rod cap or power cable attached.
External forces or impacts applied to the piston rod may cause unit to
malfunction. Any AR2 subjected to external forces or impact must be tested and,
if necessary, removed from service.
Do not operate test chamber while in the carrying case. Components will
overheat and may become damaged.
To obtain correct rate-of-fall data, always install an AR2 in the altitude chamber