TM 5-4220-233-14
c.
Mobile Compressed Gas Servicing Unit Trailer Assembly.
1
Chassis Weldment. Provides the foundation for the Body Assembly and trailer components and the lifting
/ tiedown provisions.
2
Axle Assembly. Provides the foundation for the running gear and suspension Contains the leaf springs,
shock absorbers, hubs, and brake drums.
3
Wheel and Tire Assembly. Provides road and cross country mobility for the Servicing Unit. A spare tire
is mounted under the chassis frame.
4
Surge Actuator. Contains a master cylinder and provides the actuation force to apply the trailer service
brakes. Contains the lunette eye that connects to the pintle hook connection on the towing vehicle.
5
Safety Chains. Used to keep the trailer connected to towing vehicle in the event that the lunette eye to the
pintle hook connection fails.
6
Handbrake Lever. Manually operated lever used to apply or remove the parking brake.
7
Chock. When placed next to the tire, prevents trailer movement on a downward slope.
8
Trailer Tool Box. Weather-tight box used to store trailer tools and non-breathing air parts.
Figure 1-3. Servicing Unit Trailer Assembly. (Sheet 1 of 2)
1-8
