DCA-400SSV—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 62 displays the major hydraulic surge brake components that will require inspection and maintenance. Please inspect these components as required using steps 1 through 8 and Table 15 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 (Figure 62) 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 62. 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 15. 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.

 

 

 

 

 

DCA-400SSV— OPERATION AND PARTS MANUAL — REV. #0 (04/19/06) — PAGE 45

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Multiquip DCA-400SSV-TRAILER Maintenance, Brakes, Brake Adjustment, Check the wheel and drum for free rotation
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DCA-400SSV specifications

The Multiquip DCA-400SSV is a versatile and reliable mobile generator designed to meet the demanding energy needs of various applications, from construction sites to outdoor events. With a robust combination of power output, efficiency, and portability, this generator stands out in the market for its performance capabilities.

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One of the main features of the DCA-400SSV is its advanced digital control system. This technology provides real-time monitoring and control of generator performance, allowing users to track vital parameters such as voltage, frequency, and operational hours. This capability ensures optimized performance, contributing to prolonged lifespan and reduced maintenance costs. Moreover, the control panel is designed for user-friendliness, making it easy for operators to adjust settings and monitor performance at a glance.

Fuel efficiency is another critical characteristic of the DCA-400SSV. The generator is engineered to minimize fuel consumption while maximizing power output. This feature is particularly beneficial in projects where fuel costs can quickly add up, making the DCA-400SSV an economical choice for long-term operations.

The mobility of the DCA-400SSV is enhanced by its compact design and equipped wheels. This facilitates easy transportation between job sites. Additionally, its rugged construction ensures it can withstand tough environments, making it ideal for industrial and construction applications where reliability is paramount.

Safety features, such as auto shutdown mechanisms for low oil pressure and high temperature, further enhance the dependability of the DCA-400SSV. These safety protocols protect both the generator and the equipment it powers, reducing the likelihood of operational failures.

In summary, the Multiquip DCA-400SSV is a powerful and efficient mobile generator that excels in providing reliable energy solutions across various environments. Its blend of advanced technology, safety features, and practicality makes it a popular choice among contractors and event organizers alike. With its exceptional performance, the DCA-400SSV is designed to meet the challenges of demanding jobs while ensuring user convenience and satisfaction.
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