Wire Harness (W21), Removal/Install ation

TM 32-5865-069-24&P

u. Using connector pin nsertion/removal tool MS27534-20, remove all connec-

tions from the terminal blocks. Retain the blocks for reassembly.

v. Unsolder the connections to VR1.

w. Remove A20, refer to para 5-4.4. Store the assembly safely.

x. Remove PS2 and PS3, refer to para 5-4.7. Store the modules safely.

Remove the jam-nut securing J20 thru J23 to the rear of the chassis.

z. Remove and retain the hardware securing ground-trees E1/E7 to the chassis.

aa. Remove A21, refer to para 5-4.5. Store the CCA safely.

ab. Remove and retain the hardware securing ground-tree E6 to the chassis.

ac. Unsolder wires numbered 249, 351A, 1579, 186, 187, 191 and 197A from E6.

ad. Remove and retain the hardware securing the remaining cable-clamps

supporting the harness. Remove the clamps from the harness and retain for

reassembly.

ae. Remove the jam-nuts securing J18,J19 and J24 to the rear of the chassis.

CAUTION

When unfastening cable-ties, take care not to cut or damage the

wiring in harness W21 or miniature coaxial cables.

af.

Unfasten all remaining cable-ties securing the harness to harness W21 and

ag. Remove the harness from the unit.

NOTE

Use insulated sleeving (heat-shrink) on soldered connections where

appropriate.

To install a replacement harness, reverse the procedure detailed in steps

ah.

a. thru ag. Refer to the wire list, table 5-15 for complete wiring

details.

5-4.18 Wire Harness (W21), Removal/Install ation. Generally the wire harness can

be repaired satisfactorily by following the procedures described in para 5-13.

When it becomes necessary to replace the entire harness, carry out the following

steps:

Remove A16, refer to para 5-4.8 for procedure. Store A16 and PS2 safely.

Remove PS3, refer to para 5-4.7 for procedure. Store PS3 safely.

Remove and retain the hardware securing ground-tree E6 to the chassis.

5-34