TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
Page 371 of 1563
TM 9-2815-220-24 WIRING HARNESS AND CABLE REPAIR 0056 00 STANDARD REPAIR PROCEDURES FOR WIRING HARNESSES AND CABLES CLEANING CAUTION Do not allow dry-cleaning solvent, mineral spirits, or paint thinner to be in prolonged contact with rubber components. These cleaners cause leather, rubber, and synthetic materials to dry, rot, and lose pliability making them unserviceable. 1. See Work Package 0028 for Standard Cleaning Procedures. a. Clean cables and flexible hoses with soap and water. INSPECTION All parts must be inspected with care. Replace parts if damage or wear exceeds allowable limits. 1. See Work Package 0028 for Standard Inspection Procedures. a. Inspect all wiring harness assemblies and cables for broken leads, frayed insulation and deterioration. Inspect connectors, receptacles, clips, clamps and brackets for damage. Check individual circuits for continuity. Installation of Jumper Wire WARNING Some wiring harnesses and cables are live (hot), even with MASTER BATTERY switch in the OFF position. Disconnect the three battery ground cable assemblies prior to disconnecting any wiring harness or cable. To substitute a jumper wire for a defective harness wire, tape jumper wire (using insulation tape, item 40, WP 0173) to the exterior of the harness; do not disassemble the harness. Disassemble the connectors as shown in the illustration (on the following pages of this work package) that most closely matches your application and unsolder connectors (or cut off crimped connectors) of the defective wire. Strip the insulation from end of the jumper wire to the depth of solder well on contact insert, or approximately 1/8 inch when used with a terminal assembly. Pass the jumper wire through the grommet-retaining nut and grommet, and solder to the insert. On crimp-type connectors, pass the jumper wire through the connector body and insulator or shell, and crimp to the terminal assembly. Reassemble the connector. A cable that has been repaired by installing a jumper wire should be brushed or sprayed with clear electrical ignition waterproofing varnish MIL-V-13811 (item 42, WP 0173). Allow varnish to dry for approximately 24 hours before handling. The varnish is not a conductor of electricity, so care must be taken to avoid over spraying the varnish on contact surfaces of wire terminals, connector contacts, or similar parts where it will prevent the flow of electricity. WP 0056 00-11