DCA-70SSJU SERIES —TRAILER SPECIFICATIONS

CAUTION:

5. Frame Length - Measurement is from fender to fender

ALWAYS make sure the trailer is in good operating condition. Check the tires for proper inflation and wear. Also check the wheel lug nuts for proper tightness.

Explanation of Chart:

This section is to provide the user with trailer service and maintenance information. The service and maintenance guidelines referenced in this section apply a wide range of trailers. Remember periodic inspection of the trailer will en- sure safe towing of the equipment and will prevent damage to the equipment and personal injury.

6.Jack Stand - Trailer support device with maximum pound requirement from the tongue of the trailer.

7.Coupler - Type of hitch used on the trailer for towing.

8.Tire Size - Indicates the diameter of the tire in inches (10,12,14, etc.), and the width in millimeters (175,185,205, etc.). The tire diameter must match the diameter of the tire rim.

9.Tire Ply - The tire ply (layers) number is rated in letters; 2-ply,4-ply,6-ply, etc.

10.Wheel Hub - The wheel hub is connected to the trailer’s axle.

11.Tire Rim - Tires mounted on a tire rim. The tire rim must match the size of the tire.

It is the purpose of this section to cover the major mainte-

12.

Lug Nuts - Used to secure the wheel to the wheel hub.

nance components of the trailer. The following trailer com-

 

Always use a torque wrench to tighten down the lug nuts.

ponents will be discussed in this section:

 

See Table 17 and Figure 67 for lug nut tightening and

Brakes

 

sequence.

13. Axle - Indicates the maximum weight the axle can sup-

Tires

 

port in pounds, and the diameter of the axle expressed

Lug Nut Torquing

 

 

in inches. Please note that some trailers have a double

Suspension

 

 

axle. This will be shown as 2-6000 lbs., meaning two

Electrical

 

axles with a total weight capacity of 6000 pounds.

14. Suspension - Protects the trailer chassis from shocks

Brake Troubleshooting Tables

 

transmitted through the wheels. Types of suspension

Use the following definitions when reading Table 2.

 

 

used are leaf, Q-flex, and air ride.

1.

Fuel Cell - Provides an adequate amount of fuel for the

 

15.

Electrical - Electrical connectors (looms) are provided

 

equipment in use. Fuel cells must be empty when trans-

 

with the trailer so the brake lights and turn signals can

 

porting equipment.

 

 

 

be connected to the towing vehicle.

2.

Braking System - System employed in stopping the

 

16.

Application - Indicates which units can be employed

 

trailer. Typical braking systems are electric, surge, hy-

 

on a particular trailer.

 

draulic, hydraulic-surge and air.

 

 

 

 

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).

DCA-70SSJU SERIES — OPERATION AND PARTS MANUAL (STD)— REV. #5 (06/03/03) — PAGE 17

Page 17
Image 17
Multiquip operation manual DCA-70SSJU Series -TRAILER Specifications, Explanation of Chart