Multiquip operation manual DCA-500SSK - TRAILER-SAFETY GUIDELINES, Explanation of Chart

DCA-500SSK — TRAILER-SAFETY GUIDELINES

CAUTION:

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 intended to provide the user with trailer ser- vice and maintenance information. The service and mainte- nance guidelines referenced in this section apply a wide range of trailers. Remember periodic inspection of the trailer will ensure safe towing of the equipment and will prevent dam- age to the equipment and personal injury.

It is the purpose of this section to cover the major mainte- nance components of the trailer. The following trailer com- ponents will be discussed in this section:

„Brakes

„Tires

„Lug Nut Torquing

„Suspension

„Electrical

„Brake Troubleshooting Tables

Use the following definitions with reading Table 1.

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, 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 - This measurement is from the ball hitch to the rear bumper (reflector).

5.Frame Width - This measurement is from fender to fender.

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.

12.Lug Nuts - Used to secure the wheel to the wheel hub. Always use a torque wrench to tighten down the lug nuts. See Table 4 and Figure 5 or lug nut tightening and sequence.

13.Axle - Indicates the maximum weight the axle can sup- port in pounds, and the diameter of the axle expressed in inches (see Table 3). Please not that some trailers have a double axle. This will be shown as 2-6000 lbs., meaning two axles with a total weight capacity of 6000 pounds.

14.Suspension - Protects the trailer chassis from shocks transmitted through the wheels. Types of suspension used are leaf, Q-flex, and air ride.

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.

DCA-500SSK — PARTS AND OPERATION MANUAL (STD)— REV. #1 (04/14/01) — PAGE 11