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 fi tted 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 infl ation 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 infl ation.

Adjust pressure to particular

 

 

 

 

 

 

 

 

load per tire manufacturer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Edge Wear

Under infl ation.

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 59) 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 59. 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 fi t 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

 

 

 

 

 

DCA125SSIU 50 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (12/22/08) — PAGE 43

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Multiquip DCA125SSIU manual TIRES/WHEELS/LUG Nuts, Tire Wear/Inflation, Suspension
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DCA125SSIU specifications

The Multiquip DCA125SSIU is a robust and versatile diesel generator that is designed to meet the power needs of various applications, from construction sites to events and emergency situations. With a power output of 125 kVA, this generator combines efficiency and reliability, making it an ideal choice for professionals who demand optimal performance in challenging environments.

One of the primary features of the DCA125SSIU is its industrial-grade a diesel engine. This engine not only delivers impressive power but also emphasizes fuel efficiency. The generator is equipped with advanced fuel management technologies that help minimize consumption while maximizing output, making it cost-effective for long-term use.

In terms of durability, the DCA125SSIU is built with a sturdy enclosure that protects it from environmental factors. The weather-resistant design ensures that it operates effectively in a variety of weather conditions, ensuring reliable performance when needed the most. Additionally, its compact size allows for easy transport and storage, which is particularly beneficial for contractors and rental companies.

The DCA125SSIU features a user-friendly control panel that provides essential information at a glance. This panel includes gauges for monitoring key parameters such as voltage, frequency, and hours of operation. It also has an automatic voltage regulator (AVR) that maintains consistent voltage output, safeguarding connected equipment from potential damage caused by power fluctuations.

Safety is a priority with the DCA125SSIU, as it is equipped with several emergency shutdown features. These include low oil pressure, high temperature, and overload protection, ensuring that the generator operates safely under all conditions. Further enhancing its operational reliability, the generator comes with a built-in fuel tank that allows for extended runtime, reducing the frequency of refueling during use.

In summary, the Multiquip DCA125SSIU is a powerful, durable, and efficient diesel generator that meets the diverse power needs of various industries. Its combination of a high-performance engine, user-friendly control panel, robust safety features, and fuel efficiency makes it an exceptional choice for anyone looking for a reliable power solution. Whether for temporary power during events, backup for critical systems, or support at construction sites, the DCA125SSIU is engineered to perform.
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