DCA-45USI —TRAILER SPECIFICATIONS
CAUTION:
5. Frame Width - Measurement is from fender to fender
ALWAYS make sure the trailer is in good | 6. Jack Stand - Trailer support device with maximum pound | ||
operating condition. Check the tires for |
| requirement from the tongue of the trailer. | |
7. | Coupler - Type of hitch used on the trailer for towing. | ||
proper inflation and wear. Also check the | |||
wheel lug nuts for proper tightness. | 8. Tire Size - Indicates the diameter of the tire in inches | ||
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| (10,12,14, etc.), and the width in millimeters | |
Explanation of Chart: |
| (175,185,205, etc.). The tire diameter must match the | |
| diameter of the tire rim. | ||
This section is to provide the user with trailer service and |
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9. Tire Ply - The tire ply (layers) number is rated in letters; | |||
maintenance information. The service and maintenance | |||
guidelines referenced in this section apply a wide range of |
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trailers. Remember periodic inspection of the trailer will en- | 10. Wheel Hub - The wheel hub is connected to the trailer’s | ||
sure safe towing of the equipment and will prevent damage |
| axle. | |
to the equipment and personal injury. |
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11. Tire Rim - Tires mounted on a tire rim. The tire rim must | |||
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It is the purpose of this section to cover the major mainte- |
| match the size of the tire. | |
12. | Lug Nuts - Used to secure the wheel to the wheel hub. | ||
nance components of the trailer. The following trailer com- | |||
ponents will be discussed in this section: |
| Always use a torque wrench to tighten down the lug nuts. | |
|
| See Table 17 and Figure 67 or lug nut tightening and | |
Brakes |
| sequence. | |
Tires | 13. | Axle - Indicates the maximum weight the axle can sup- | |
Lug Nut Torquing |
| port in pounds, and the diameter of the axle expressed | |
Suspension |
| in inches (see Table 2). Please note that some trailers | |
Electrical |
| have a double axle. This will be shown as | |
Brake Troubleshooting Tables |
| meaning two axles with a total weight capacity of 6000 | |
Use the following definitions when reading Table 2. |
| pounds. | |
1.Fuel Cell - Provides an adequate amount of fuel for the equipment in use. Fuel cells must be empty when trans- porting equipment.
2.Braking System - System employed in stopping the trailer. Typical braking systems are electric, surge, hy- draulic,
3.GVWR- Gross Vehicle Weight Rating (GVWR), is the maximum number of pounds the trailer can carry, in- cluding the fuel cell (empty).
4.Frame Length - Measurement is from the ball hitch to the rear bumper (reflector).
14.Suspension - Protects the trailer chassis from shocks transmitted through the wheels.Types of suspension used are leaf,
15.Electrical - Electrical connectors (looms) are provided with the trailer so the brake lights and turn signals can be connected to the towing vehicle.
16.Application - Indicates which units can be employed on a particular trailer.
