Trailer Maintenance

Tires/Wheels/Lug Nuts

Tires and wheels are a very important and critical components of the trailer.When specifying or replacing the trailer wheels it is important the wheels, tires, and axle are properly matched.

CAUTION

ALWAYS wear safety glasses when removing or installing force fitted parts. Failure to comply may result in serious injury.

CAUTION

DO NOT attempt to repair or modify a wheel. DO NOT install in inner tube to correct a leak through the rim. If the rim is cracked, the air pressure in the inner tube

may cause pieces of the rim to explode (break off) with great force and cause serious eye or bodily injury.

Tire Wear/Inflation

Tire inflation pressure is the most important factor in tire life. Pressure should be checked cold before operation DO NOT bleed air from tires when they are hot!. Check inflation pressure weekly during use to insure the maximum tire life and tread wear.

Table 14 (Tire Wear Troubleshooting) will help pinpoint the causes and solutions of tire wear problems.

Table 14. Tire Wear Troubleshooting

 

 

Wear Pattern

Cause

Solution

 

 

 

 

 

 

 

 

 

 

 

Center Wear

Over inflation.

Adjust pressure to particular

 

 

 

 

 

 

 

 

load per tire manufacturer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Edge Wear

Under inflation.

Adjust pressure to particular

 

 

 

 

 

 

 

 

load per tire manufacturer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loss of camber

Make sure load does not

 

 

 

 

 

 

 

 

 

Side Wear

exceed axle rating.

 

 

 

 

or overloading.

 

 

 

 

 

Align wheels.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Toe Wear

Incorrect toe-in.

Align wheels.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cupping

Out-of-balance.

Check bearing adjustment

 

 

 

 

 

 

 

 

and balance tires.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flat Spots

Wheel lockup and

Avoid sudden stops when

 

 

 

 

 

 

 

 

tire skidding.

possible and adjust brakes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Suspension

The leaf suspension springs and associated components (Figure 61) should be visually inspected every 6,000 miles for signs of excessive wear, elongation of bolt holes, and loosening of fasteners. Replace all damaged parts (suspension) immediately.Torqued suspension components as detailed in Table 15.

Figure 61. Major Suspension Components

Table 15. Suspension Torque Requirements

Item

Torque (Ft.-Lbs.)

 

 

 

3/8" U-Bolt

Min-30

Max-35

 

 

 

7/16" U-Bolt

Min-45

Max-60

 

 

 

1/2" U-Bolt

Min-45

Max-60

 

 

Shackle Bolt

Snug fit only. Parts must rotate freely.

Locking nuts or cotter pins are

Spring Eye Bolt

provided to retain nut-bolt assembly.

 

 

 

 

Shoulder Type

Min-30

Max-50

Shackle Bolt

 

 

 

 

 

page 44 — DCA300SSC / DCA300SSCU Gen. • operation and parts manual — rev. #1 (08/10/11)

Page 44
Image 44
Multiquip DCA300SSCU manual Tires/Wheels/Lug Nuts, Tire Wear/Inflation, Suspension

DCA300SSCU specifications

The Multiquip DCA300SSCU is a powerhouse generator designed for both commercial and industrial applications, providing reliable performance in various environments. With a robust design and advanced technology, this generator stands out in the competitive field of portable power solutions.

One of the main features of the DCA300SSCU is its reliable diesel engine, which provides 300 kVA of power. The generator is powered by a fuel-efficient Yanmar engine, known for its durability and low emissions, making it an eco-friendly choice for users who need sustained power without sacrificing environmental standards. This engine is designed to operate efficiently, ensuring lower operational costs over time.

The DCA300SSCU boasts impressive electrical characteristics. It is equipped with a state-of-the-art automatic voltage regulator (AVR) that ensures voltage stability, protecting sensitive electronic equipment from damage due to voltage fluctuations. Additionally, the generator's output can be customized to meet specific needs, offering versatility for various applications ranging from construction sites to events.

This model integrates advanced noise reduction technology, making it quieter than many traditional generators on the market. An enclosed canopy design significantly dampens noise pollution, an essential feature for operation in urban areas or during nighttime events. This focus on reduced sound output allows for greater flexibility in deployment locations without disturbing nearby environments.

Ease of use and maintenance are other key characteristics of the DCA300SSCU. The generator features a user-friendly control panel that makes operation straightforward, even for individuals with minimal experience. Additionally, the maintenance intervals are designed to be manageable, reducing downtime and ensuring that the generator stays operational when it’s needed most.

In terms of mobility, the DCA300SSCU is designed with a trailer for easy transportation, allowing it to be moved from one job site to another with minimal effort. The robust frame and integrated lifting points ensure stability and safety during transit.

In summary, the Multiquip DCA300SSCU is a powerful, efficient, and versatile generator that meets the demands of numerous applications. With its dependable diesel engine, advanced voltage regulation, noise reduction mechanisms, and user-friendly design, it is an ideal choice for professionals seeking a high-performance power solution.