TM-9-2510-247-13-P

FIFTH WHEEL TOWING DEVICE MODEL 250M

TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT MAINTENANCE MANUAL, REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2004

TM-9-2510-247-13-P - Page 261 of 522

TM 9-2510-247-13&P

0055 00

INSPECTION AND REPLACEMENT OR REPAIR

NOTE

Damaged air hoses that may fail must be replaced.

(1)

Inspect brake air hoses and fittings for cracks, kinks, nicks, stripped threads, and cuts.

(2)

Replace damaged hoses.

INSTALLATION

CAUTION

DO NOT remove caps or plugs from hoses until installation.

Removing caps or plugs may result in contamination of brake

system and damage to equipment.

NOTE

Apply thread sealing compound to threads before connecting.

Install plastic cable ties as required.

Air hoses must be tightly attached and connected.

1.

Install brass bushing (17) on air brake protection valve (15).

2.

Install new insert (5) into hose (4) and install hose onto brass bushing (17).

3.

Install straight adapter (16) on air brake protection valve (15).

4.

Install new insert (5) into hose (4) and install hose onto straight adapter (16).

5.

Install reducer (14) on air brake protection valve (15).

6.

Install two 45° fittings (13) on reducer (14).

7.

Install new insert (5) into hose (4) and install hoses onto 45° fittings (13).

8.

Position loop clamps (8) on hoses (4) and secure with screw (6), flatwasher (7), spacer (9),

flatwasher (11), new lockwasher (10), and nut (12).

0055 00-3

NOTE

Gladhand connections on prime mover side have straight adapters.

Gladhand connections on towed vehicle side have 45° fittings.

9.

Install new insert (5) into air hose (4) and install onto straight adapter (2).

10. Install new insert (5) into air hose (4) and install onto 45° compression fitting (3).

11. Install nut (1) onto straight adapter (2) and 45° compression fitting (3).