DCA-600SSK —TRAILER BRAKES MAINTENANCE

Brakes

Trailer brakes should be inspected the first 200 miles of operation. This will allow the brake shoes and drums to seat properly. After the first 200 mile interval, inspect the brakes every 3,000 miles. If driving over rough terrain, inspect the brakes more frequently.

Air Brake System

Air brakes use compressed air to make the brakes function. Air brakes are a good and safe way of stopping large and heavy vehicles. There are many components that make up an air-brake system, such as the air compressor, air compressor governor, air storage tanks and air tank drains. These components need to be maintained by qualified and trained technicians.

S-Cam Brakes

When the brake pedal is pushed, air is let into each brake chamber (Figure 76). Air Pressure pushes the rod out, moving the slack adjuster, thus twisting the brake cam shaft. This turns the s-cam (so called because it is shaped like the letter "S").

The s-cam forces the brake shoes away from one another and presses them against the inside of the brake drum.When the brake pedal has been released, the s-cam rotates back and a spring pulls the brake shoes away from the drum, letting the wheels roll freely.

Figure 76. Hydraulic Brake Components

Brake Drums (or discs), Linings, and Hoses

Brake drums or discs must not have cracks longer than one half the width of the friction area. Linings must not be loose, soaked with oil or grease or be dangerously thin. Mechanical parts must be in place, not broken or missing. Check that all air hoses connected to the brake chambers are not worn or cut due to rubbing.

Air Tank Drains

Air Leaks

Compressed air usually has some water in it which is bad

Always check for brake air leaks before towing the trailer.

for the air brake system. Water can freeze in cold weather

NEVER tow the trailer with an brake air leak problem. The

and thus cause brake failure. The water tends to collect in

possibility exists of brake failure.

the bottom of the air tank. Daily air tank drainage is required

 

to remove water from the air tank.

 

 

 

 

 

 

 

Table 15. Air Brake Troubleshooting

 

 

Symptom

 

Possible Cause

Solution

 

 

 

 

 

 

 

 

 

 

Air Brake line broken or kinked?

Repair or replace.

 

 

 

 

 

 

 

 

No Brakes

 

Worn lining?

Replace lining.

 

 

 

 

 

 

 

 

 

 

Slack adjustment incorrect?

Adjust correctly.

 

 

 

 

 

 

 

 

 

 

Brake lining glazed?

Reburnish or replace.

 

Use Table 15 as a basic

 

 

 

 

 

 

 

Trailer overloaded?

Correct weight.

 

troubleshooting guide when

Weak Brakes or Brakes Pull to

 

 

NOTE

Brake drums scored or grooved?

Machine or replace.

One Side

 

 

brake problems occur.

 

 

 

 

 

 

 

Tire pressure correct?

Inflate all tires equally.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tires unmatched on the same axle?

Match tires.

 

 

 

 

 

 

 

 

Locking Brakes

 

Brake components loose, bent or broken?

Replace components.

 

 

 

 

 

 

 

 

 

 

Brake drums out-of-round?

Replace.

 

 

 

 

 

 

 

 

 

 

Brake lining glazed?

Replace brake lining.

 

 

 

 

 

 

 

 

Noisy Brakes

 

Drums and lining glazed?

Replace brake lining and

 

 

 

 

 

drum.

 

 

 

 

 

 

 

 

 

 

Brake lining thickness incorrect or not

Install new shoes and linings.

 

 

Dragging Brakes

 

adjusted correctly?

 

 

 

 

 

 

 

 

 

 

Zerk fittings lubricated?

Lubricate zerk fittings.

 

 

 

 

 

 

PAGE 56 — DCA-600SSK — OPERATION AND PARTS MANUAL (STD) — REV. #7 (04/30/10)

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Multiquip operation manual DCA-600SSK -TRAILER Brakes Maintenance
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DCA-600SSK specifications

The Multiquip DCA-600SSK is a rugged, reliable, and high-performance mobile generator that caters to a wide range of applications, from construction sites to outdoor events. Designed for durability and efficiency, the DCA-600SSK is notable for its robust construction and advanced technologies that ensure reliable power delivery.

At its core, the DCA-600SSK is powered by a reliable, fuel-efficient diesel engine. This engine not only provides consistent power output but also offers extended run times, making it ideal for long-duration use in remote locations. The generator delivers a remarkable 600 kVA of power, allowing it to support heavy machinery or multiple smaller loads simultaneously.

One of the standout features of the DCA-600SSK is its impressive sound attenuation design. The generator is enclosed in a weather-resistant, sound-attenuated housing that significantly reduces noise levels, making it suitable for use in noise-sensitive environments, such as residential areas or events.

Additionally, the DCA-600SSK is equipped with a user-friendly digital control panel that provides comprehensive monitoring capabilities. This panel includes features such as voltage and frequency regulation, along with automatic start/stop functionality, which enhances both ease of use and operational efficiency. The digital display allows operators to monitor critical parameters at a glance, ensuring optimal performance and safety.

The generator is also designed with mobility in mind. It comes with forklift pockets and lifting hooks, making it easy to transport and relocate. This portability ensures quick setup and deployment, which is especially advantageous in dynamic job sites or temporary power needs.

Another important characteristic of the DCA-600SSK is its dual-frequency capability. It can operate at either 50 Hz or 60 Hz, making it versatile for international applications. This adaptability enables users to utilize the generator in various regions without modifying equipment or loads significantly.

Finally, safety features are paramount in the design of the DCA-600SSK. It includes fully automatic safety shutdowns for low oil pressure, high coolant temperature, and overload protection, safeguarding the generator from potential damage and ensuring dependable performance in demanding conditions.

In summary, the Multiquip DCA-600SSK is a powerhouse generator combining high performance, advanced technology, and user-centric design. Its efficiency, portability, and durability make it an excellent choice for professionals seeking reliable power solutions in various settings.
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