34-55-00
 Aug 25/81SN ALL
PROCEDURE 1

T35320
EFFECTIVITYLH 001-010, 031-050, 071-080;AF 101-171; AZ 201-220; IB 405;
799 Page 103 SN ALL
34-55-00
 Aug 25/81 Prepare system for trouble shooting as described in par. 2 - Depress and hold TEST button, check for 000.0 |0.5 readout on captain's and first officer's DME indicators. IF -

NOT OK
ONE DME INDICATOR INCORRECT - Replace RMI indicator or
NOT OK
DME indicator (34-21-00, Maintenance Practices) and perform specified test.
OK

System passes the above test but is still suspected as malfunctioning, check that ANT fault indicator on front panel of R/T unit is black (not yellow). IF -

NOT OK
OK
ANT FAULT INDICATOR HAS ACTUATED TO YELLOW -
System is operable.

T35324
EFFECTIVITY LH 011-013, 051-056, 082; 799 Page 104
AF 172-199; AT ALL; GN ALL; MD ALL; IB 406-499

34-55-00
 Dec 25/85
PROCEDURE 1

T35327
EFFECTIVITYLH 011-013, 051-056, 082; 799 Page 105
AF 172-199; AT ALL; GN ALL; MD ALL; IB 406-499

34-55-00
 Dec 25/85
Prepare system for trouble shooting as described in par. 2 - Depress and hold DME test switch, check for 000.0 |0.5 readout on captain's and first officer's DME indicators. IF -

NOT OK
NOT OK
NOT OK
OK

System passes the above test but is still suspected as malfunctioning. IF -

NOT OK NOT OK
OK

System is operable.

EFFECTIVITY
LH 014-030, 057-070, 083-099;
799 Page 106 AZ 221-299; VM ALL Dec 25/85
34-55-00
PROCEDURE 1

EFFECTIVITY
LH 011-030,057-070,083-099;
786 Page 107 AZ 221-299; VM ALL Dec 25/85
34-55-00
 DME SYSTEM - MAINTENANCE PRACTICES
__________________________________
 1.  General_______
 A.  This section covers the removal and installation of the DME interrogator, DME indicator, and the DME antenna.
 B.  Removal and installation of the VHF Nav control panel is covered in 34-31-01.
 C.  Installation of the antenna covers cleaning and sealing.
 2.  References__________
 A.  SWPM 20-20-00 Electrical Bonding and Grounding
 B.  AMM 34-55-00/501, DME System - Adjustment/Test
 C.  AMM 51-21-03/701, Corrosion (Removal and Control)
 D.  AMM 51-21-04/701, Alodized Surfaces
 E.  AMM 51-31-01/201, Seals and Sealing
 3.  Equipment and Materials_______________________
 A.  Aerodynamic Smoother Cutting Tool - Hardwood or Plexiglass
 B.  Anticorrosion Compound - Dow Corning No. 4 electrical insulating lubricant
 C.  Bonding Meter (AMM 20-22-01/601)
 D.  Brush - soft-bristle (fiber); Commercially available
 E.  Cheesecloth - New, Clean, Dry, Lint free
 F.  Coating - Alodine MIL-C-5541, Type II, Grade C, Class 1
 G.  Compound - Corrosion Inhibiting Mastinox 6856K, BMS 3-27
 H.  Gloves, Neoprene or Rubber; Commercially available
 I.  Grease - BMS 3-24, Corrosion Preventive
 J.  Primer - BMS 10-79, Type III
 K.  Respirator; Commercially available
 L.  Sealant - Chromate, Type BMS 5-95, Class B
 M.  Sealing Gun - 6-inch length cartridge, Senco Research (not required for material furnished tubes)
 N.  Solvent - Methyl Ethyl Ketone (MEK), TT-M-261
 O.  Spatula
 P.  Sponge, Cellulose (Aircraft Cleaning) L-S-626
 4.  Prepare for Removal___________________
 A.  Before removing any component ensure that the following circuit breakers on P7 panel are open:
 On AF ALL EXCEPT 152-199; AZ ALL; IB 401, 402, and 405; LH 001-010, 031-050, 071-081; SN ALL,
 (1)  
DME 1 AC, DME 1 DC, DME 2 AC, DME 2 DC.

 On AF 152-199; LH 011-030, 051-070, 082-099; AT ALL; GN ALL; MD ALL; IB ALL EXCEPT 401, 402, and 405; VM ALL

 (2)  
DME 1 AC, DME 2 AC

 5.  Remove the DME System Components_________________________________
 A.  Remove DME interrogator.
 (1)  On DME interrogator located on shelf 6 in the main equipment center electronic equipment rack E3, loosen hold-down fasteners and pull transponder from shelf.
 B.  Remove DME indicator.
 EFFECTIVITY
 
 ALL  17 Page 201  Oct 25/9634-55-00

DME ANTENNA (REMOVED)
DME Antenna Installation/Location
Figure 201

EFFECTIVITY ALL

702 Page 202
34-55-00
 Jul 25/77
 (1)  Loosen indicator fasteners, pull unit from console far enough to reach the electrical connectors. Disconnect electrical connectors and remove indicator. Retain fasteners.
　
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