air hose mounting part. Straight connector (7) need not be removed from coupling (3) unless damaged. Do
not remove Service tag (5) unless It needs to be replaced.
Repeat (1) and (2) above for the emergancy air hose assembly (, Figure 7-2).
Remove screws from tubing clips securing tube assemblies (8 and 9 Figure 7-2). Tubing clips need not be
removed from tube assemblies unless it is necessary.
Unscrew and remove tube assy. (8, 9) from air filter (6, Figure 7-1). Tag for reassembly purposes.
Unscrew and remove tube assembly (10, Figure 7-2). Tag air filter to RE-6 Valve, for reassembly purposes.
Remove tubing clip nuts and screws which are located on the top of the air resevoir mounting plate. Unscrew
and remove tube assy (11). Tag for reassembly purposes.
Unscrew and remove tube assembly )12, Figure 7-2) between the relay valve (7, Figure 7-1) and air
reservoir. (8). Tag for reassembly purposes.
Remove screws from tubing clips securing tube assembly (13, Figure 7-2) from the relay valve (7, Figure 7-1)
to the power cluster (1). Remove tube assembly (13, Figure 7-2) Tag for reassembly purposes.
(10). Unscrew and remove tube assembly (14) between the air reservoir (8, Figure 7-1) and drain valve (23). Tag
for reassembly purposes.
Use container to catch brake fluid as needed during disassembly of hydraulic brake line tubing.
(11). Drain brake fluid from brake system4
(12). Remove screws securing tubing clips used on tube assembly (15, Figure 7-2), power cluster to the bulkhead
tee. Unscrew and remove tubing assembly (15). Tag for reassembly purposes.
(13). Bulkhead Tee (16) and bulkhead elbows (19) do not need to be disassembled from trailer frame unless It Is
necessary. Remove tube assemblies (17,18) from bulkhead Tee (16) and bulkhead elbows (19).
(14). Remove brake lines (24).
Cleaning. Refer to paragraph 6-2.b. for general cleaning requirements.
Inspection. Refer to paragraph 6-2. c. for general Inspection requirements.
Repair Or Replacement . Refer to paragraph 6-2. d. for general repair or replacement require requirements.
Replace all threaded parts having worn, stripped, or damaged threads.
Replace damaged or defective tubing.
Replace damaged or defective fittings
Assembly. To assemble the tubing lines of the air over hydraulic brake system proceed as follows (See Figure 7-
Assemble brake lines (24, Figure 7-2) to wheel and bulkhead elbow (19)