• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
TEST CHAMBER ASSEMBLY, MODEL 452 UNIT MAINTENANCE
TEST CHAMBER ASSEMBLY, MODEL 452 UNIT MAINTENANCE CONT. - TM-10-1670-305-23P_131

TM-10-1670-305-23P Automatic Ripcord Release AR2 Model 451 NSN 1670-01-369-7914 Test Chanber Assembly AR2 Model 452 NSN 1670-01-370-0752 Manual
Page Navigation
  87    88    89    90    91  92  93    94    95    96    97  
TM 10-1670-305-23&P 0021  00-2 TEST CHAMBER ASSEMBLY, MODEL 452 0021 00 UNIT MAINTENANCE - CONT INSPECTION PRIOR TO DISASSEMBLY - CONT NOTE If test chamber will not maintain high altitudes with CLIMB/FALL/COCK switch in CLIMB position, there is a leak in the pneumatic system.  Check all compression nuts for tightness with the fingers.  DO NOT USE WRENCHES.  Carefully examine gasket for flaws or damage and replace, if necessary.  If the chamber still will not maintain altitude, send the chamber back to depot for repair. DISASSEMBLY NOTE When disassembling the test chamber, use care to prevent scratching the altitude chamber.  Be careful not to damage mating surface of altitude chamber when removing damaged gasket. 1.     Remove damaged altitude chamber gasket (30) by carefully pulling gasket away from altitude chamber.  A putty knife or similar tool may be used to aid in gasket removal. 2.     If replacement is required, peel off identification decal (1) from carrying case (2),and from control housing (6), WARNING decal (5), FUNCTIONS decal (7), and CONNECTIONS decal (15).  Retain identification decal (1). 3.     If replacement of air compressor (13), vacuum pump (14) or altimeter (26) is necessary, remove four screws (18) holding the housing panel (19) to the control housing (6). Connection strip (17) mounted inside control housing (6) contains all electrical connections from the input power and various components.  The connections are identified on connections decal (15) found inside housing panel (19) 4.     Unfasten and detach electrical connector (16) from altimeter (26).  Unscrew compression nut (21) and disconnect tubing (22) from elbow (20). 5.     Remove three screws (27) and lift altimeter (26) from control housing (6). NOTE Observe orientation of elbow (20) to aid in assembly. 6.     If replacement altimeter (26) has no elbow (20) attached, it will be necessary to transfer elbow from the unit being removed to the replacement. CAUTION No sealant is used with elbow (20).  An o-ring packing (23), located under back- up washer (24) and lock nut (25) performs this function.  Make sure not to lose or damage this packing.







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.