TM 10-1670-305-23&P
0021 00-1
TEST CHAMBER ASSEMBLY, MODEL 452
0021 00
UNIT MAINTENANCE
THIS WORK PACKAGE COVERS:
Disassembly, calibration, cleaning, inspection, and reassembly.
INITIAL SETUP
TOOLS
Putty Knife (WP 0041 00, Item 6)
Wrench, Open End, 5/8-inch (WP 0041 00, Item 15)
Wrench, Open End, 11/16-inch (WP 0041 00, Item 16)
Nutdriver, 3/8-inch (WP 0041 00, Item 5)
Screwdriver, Slotted, 1/4-inch (WP 0041 00, Item 12)
MATERIALS
Isopropyl Alcohol (Anhydrous) (WP 0040 00, Item 1)
Cloth, Lint Free, Cleaning (WP 0040 00, Item 3)
Tags (ID) (WP 0040 00, Item 4)
GENERAL
This work package contains information and instructions to keep the Test Chamber Assembly,
Model 452 in good repair.
WARNING
Mounting base with attached components weighs 50 lbs, weight when mounting
base is installed in carrying case is 70 lbs. Use two persons when moving or
lifting to avoid injury to personnel.
CAUTION
Do not lift test chamber and base by grasping altitude chamber. Grasp altitude
regulator in right hand and head of compressor in left hand to lift test chamber
from carrying case.
INSPECTION PRIOR TO DISASSEMBLY
1. Open carrying case (2) and lift out mounting base (29) with attached components. Place on
a work bench.
2. Visually inspect all components for wear or damage.
3. Ensure that altitude chamber gasket (30) is not damaged.
4. Note all failures during initial adjustments before use (WP 0009 00).
