DCA-56SPX -TRAILER Maintenance, Brakes

DCA-56SPX —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 44 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 44) 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 44. 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 12. 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
Weak Brakes or Brakes Pull to	Brake drums scored or grooved?	Machine or replace.
One Side	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.
	Brake drums out-of-round?	Replace.

Noisy Brakes	System lubricated?	Lubricate.

	Brake components correct?	Replace and correct.
	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
		Replace rubber parts
		fill with dot 4 fluid.
		fill with dot 4 fluid.

DCA-56SPX— OPERATION AND PARTS MANUAL — REV. #1 (04/14/10) — PAGE 43

DCA-56SPX specifications

The Multiquip DCA-56SPX is a versatile and robust portable generator designed for a variety of applications, from construction sites to outdoor events. This generator combines performance, reliability, and user-friendly features, making it an essential tool for both professionals and DIY enthusiasts.

At the heart of the DCA-56SPX is a powerful Yanmar diesel engine that delivers a maximum output of 56 kVA. This generator is engineered for high efficiency and longevity, with a robust design that allows it to run for extended periods under heavy loads. The engine also adheres to stringent emissions standards, ensuring environmentally friendly operation without compromising performance.

One of the standout features of the DCA-56SPX is its advanced digital control panel. This user-friendly interface provides real-time monitoring of key parameters, such as voltage, frequency, and total runtime. It simplifies the operation and maintenance of the generator, enabling users to make informed decisions about power management. The control panel also includes safety features, such as low oil pressure and high-temperature shutdowns, to protect the engine from potential damage.

The DCA-56SPX is also equipped with a sound-attenuated enclosure, significantly reducing noise levels during operation. This feature is particularly beneficial in urban environments or areas where quiet operation is a priority. Moreover, the durable, weather-resistant design of the generator ensures reliable performance in various outdoor conditions.

Portability is another key characteristic of the DCA-56SPX. The generator is fitted with heavy-duty wheels and a sturdy frame that allows for easy transport across job sites. In addition to its mobility, the unit is designed for easy access to service points, facilitating quick maintenance and minimizing downtime.

Flexibility is further enhanced by the generator's multiple output options, including 120/240V single phase and 120/208V three-phase configurations. This versatility allows users to connect various tools and equipment, making the DCA-56SPX suitable for numerous applications, from powering construction machinery to providing backup power during outages.

Overall, the Multiquip DCA-56SPX stands out due to its robust design, efficient engine, advanced control technologies, and user-oriented features. It is an excellent investment for those seeking a reliable power source that can handle demanding tasks while ensuring safety, portability, and efficiency. Whether for construction, event planning, or emergency situations, the DCA-56SPX delivers dependable performance to meet diverse power needs.

Multiquip DCA-56SPX -TRAILER Maintenance, Brake Adjustment, Hydraulic Surge Brakes

Models: DCA-56SPX