Cleaning. Refer to paragraph 6-2. b. for general electrical cleaning procedures
Inspection. Refer to paragraph 6-2. c. for general electrical inspection procedures.
Repair or Replacement. Refer to paragraph 6-2. d. for general repair or replacement procedures.
Assembly. To assemble the 12V Commercial cable assembly to the trailer unit, proceed as follows:
Assemble the cable grip (7, Figure 7:7) to the 12V cable assembly and insert cable assembly (18)
into electrical box (16). Place cord grip (7) nut and washer (8) -over cable assembly (1 8), position
cable assy and tighten cable grip (7) securing the cable assembly (18) to box (16).
Attach terminal ends of cable assy (18) to proper connections.
Check box gasket seal, Reseal suspect areas if needed, do not replace box cover until
gasket seal is dry.
Attach electrical box (16) cover to the box using cover mounting screws.
Reposition cable clamps (7, Figure 7-3)on cables and attach to tow bar using screws (9).
WIRING HARNESS, TRAILER (See Figure 7-6): The following paragraphs contains disassembly, cleaning,
Inspection, repair or replacement and assembly procedures for the trailer unit wiring harness.
Disassembly. Disassemble the wiring harness only to the extent necessary to repair or replace a defective part or
Remove all connectors (7,Figure 7-6) from their clips (6,Figure 7-3). Disconnect the male, female
connections ( 7, Figure 7-6 ). Unscrew and remove screw holding ground wires L and W to rear of front
crossmember at electrical box outlet.
Unscrew mounting screws from electrical box (16, Figure 7-7) top cover, and remove top cover. Unscrew
and remove terminal block (6) wire nuts and remove wires (1 then 5 , Figure 7-6) from the terminal block (6,
Figure 7-7). Replace wire nuts.
Unscrew and carefully remove cable grip (7) hold down nut and washer (8). Remove trailer wiring harness
(Figure 7-6) and cord grip (7, Figure 7-7) base from electrical box (1 6). Remove cable grip(7) base from
wiring harness (Figure 7-6).
If removed, wiring harness should be removed from front to rear.
Make sure that the wiring harness is free and not connected at any location. Feed loom covered
wiring harness through each section of grommeted cross rails one at a time.
If the pieces of grommet (8, Figure 7-3) are moved out of position, reposition after wiring harness has
Prior to removal of the loom from the wiring harness, make note of sealed or taped locations so that
resealing or retaping may be accomplished at reassembly.