DCA-300SSK SERIES —TRAILER 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.

Figure 74 displays the major hydraulic surge brake components that will require inspection and maintenance. Use Table 14 as a basic trouble shooting guide when brake problems occur. Please inspect these components as required using steps 1 through 6 as listed below:

Brake Adjustment

1.Place the trailer on jack stands. Make sure the jack stands are placed on secure level ground.

2.Check the wheel and drum for free rotation.

3.Remove the adjusting hole cover from the adjusting slot at the bottom brake backing plate.

4.With a screwdriver or standard adjusting tool, rotate the star wheel of the adjuster assembly to expand the brake shoes.

5.Adjust the brake shoes outward until the pressure of the lining against the wheel drum makes the wheel difficult to turn.

6.Adjust, rotate the star wheel in the opposite direction until the wheel rotates freely with slight lining drag.

7.Replace the adjusting hole cover and lower the trailer to the ground.

8.Repeat steps 1 through 7 on the remaining brakes.

Hydraulic Surge Brakes

Hydraulic surge brakes should not require any special attention with the exception of routine maintenance such as shoe and lining replacement. Brake lines should be periodically checked for cracks, kinks, or blockage.

Figure 74. Hydraulic Brake Components

Actuator

Hydraulic surge braking requires the installation of an actuator at the tongue of the trailer. Remember the surge or push of the trailer toward the tow vehicle automatically synchronizes the trailer brakes with the tow vehicle brakes. As the trailer pushes against the tow vehicle the actuator telescopes together and applies force to the master cylinder, supplying hydraulic pressure to the trailer brakes.

Periodically check and test the surge “actuator ” to make sure that it is functioning correctly. Never use an undersize actuator.

Table 14. Hydraulic Brake Troubleshooting

Symptom

Possible Cause

Solution

 

 

 

No Brakes

Brake line broken or kinked?

Repair or replace.

 

 

 

 

Brake lining glazed?

Reburnish or replace.

 

 

 

 

Trailer overloaded?

Correct weight.

Weak Brakes or Brakes Pull to

 

 

Brake drums scored or grooved?

Machine or replace.

One Side

 

 

 

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.

 

 

 

 

Noisy Brakes

System lubricated?

Lubricate.

 

 

Brake components correct?

Replace and correct.

 

 

 

 

 

Brake lining thickness incorrect or not

Install new shoes and

Dragging Brakes

adjusted correctly?

linings.

 

 

Enough brake fluid or correct fluid?

Replace rubber parts

 

 

 

fill with dot 4 fluid.

 

 

 

PAGE 50 — DCA-300SSK SERIES — PARTS AND OPERATION MANUAL (STD) — REV. #4 (03/27/06)

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Multiquip DCA-300SSK manual Brake Adjustment, Hydraulic Surge Brakes, Actuator
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DCA-300SSK specifications

The Multiquip DCA-300SSK is a powerful and versatile silent diesel generator designed to meet the demands of various applications, from construction sites to outdoor events. With its robust features and advanced technologies, this generator ensures reliability and efficiency in power generation.

One of the standout features of the DCA-300SSK is its impressive power output capability. With a maximum capacity of 300 kVA, it can support multiple tools and equipment simultaneously, making it ideal for construction projects, emergency backup, and rental services. Its diesel engine, known for its durability, provides a consistent power supply while being fuel-efficient.

The DCA-300SSK is also notable for its sound attenuation technology. Equipped with a specialized enclosure, this generator operates at a reduced noise level, making it suitable for noise-sensitive environments. This feature is particularly beneficial in urban settings or during nighttime operations where excessive noise could be disruptive.

Safety is paramount in any power generation equipment, and the DCA-300SSK integrates various safety features to protect both the operator and the machine. It includes an automatic shutdown function for low oil pressure and high coolant temperature, ensuring the engine is safeguarded against potential damage. Additionally, the generator is equipped with circuit breakers to prevent electrical overloads, enhancing overall operational safety.

Portability is another key characteristic of the DCA-300SSK. The unit is mounted on a heavy-duty frame with integrated lifting and transport provisions, enabling easy relocation. This feature is particularly advantageous for contractors who need to move the generator frequently from one job site to another.

The generator also features a user-friendly control panel, providing operators with easy access to monitoring essential parameters such as voltage, frequency, and operational hours. This design ensures that users can maintain optimal performance while minimizing downtime.

With its reliable performance, innovative technology, and user-centric design, the Multiquip DCA-300SSK stands out as a top choice for anyone seeking a dependable diesel generator solution. Whether for emergency backup power or heavy-duty usage, the DCA-300SSK delivers efficiency and peace of mind in power generation.
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