DEVELON Excavator by Siam Sun Autosales | Sole Distributor in Thailand

For anyone experiencing operational issues with their excavator, particularly symptoms like a lack of power or travel motor problems without knowing the root cause—how should you perform a preliminary check, and what consequences might arise if ignored? In this article, we have all the answers for you.

3 Main Causes of Power Loss in Backhoe Excavators

The primary causes behind backhoe performance issues can generally be categorized into 3 areas: the engine, the hydraulic system, and structural components or replacement parts. Here is a breakdown of these issues:

• Engine Issues

An excavator lacking power or operating slowly can often stem from engine problems. Noticeable signs include hard starting and loss of driving or operational force. As a preliminary step, inspect the battery and filters for abnormalities, filter clogging, bushing integrity, and starting circuits to enable targeted repairs.

• Hydraulic System Issues

Another common cause of excavator power loss is hydraulic system malfunction due to leakage. This includes External Leaks, which are visible and result in dropping hydraulic fluid levels, and Internal Leaks occurring inside the cylinder between high-pressure and low-pressure chambers without visible fluid loss. Internal leaks prevent the boom from lifting properly, leading to severe power loss.

• Structural and Mechanical Issues

Lastly, issues caused by component wear and tear directly impact the structural and mechanical integrity of the backhoe excavator. This reduces working efficiency while simultaneously compromising machine stability and travel mobility.

Excavator Maintenance Guidelines

For operators encountering performance issues who wish to restore their backhoe to full operational capacity, understanding the concept of “excavator maintenance” is the essential first step. The scope of maintenance involves keeping machinery constantly ready for operation while avoiding breakdowns that could disrupt work schedules.

The most suitable maintenance strategy for excavators is “Preventive Maintenance” (PM), which focuses on preventing potential issues through scheduled inspections and routine daily care. This approach significantly extends the machine’s lifespan, minimizes accident risks, and ensures smooth operational workflow.

4 Daily Inspection Checklist Items for Excavators

1. Check for Fluid Leaks at All Points : Prevent fuel and hydraulic oil leaks across hose and pipe systems to avoid component damage, loss of power, and potential fire hazards during engine startup.
2. Always Measure Engine Oil and Coolant Levels : Maintaining optimal levels ensures smooth engine operation, prevents overheating, and extends engine lifespan for long-term reliability.
3. Warm Up the Engine for 10-30 Minutes Before Work : Check instrument panel gauges during warm-up to verify system readiness, detect any faults early, and allow prompt repair or part replacement.
4. Check Hydraulic Oil and Swing Motor Gearbox Oil Levels : Fully retract all hydraulic cylinders to accurately measure oil levels, ensuring it falls between the upper and lower red gauge lines. If below the lower line, top up before operation to prevent power loss.

Extend machine lifespan and keep your excavator working at maximum performance with comprehensive excavator repair and maintenance services from SIAM SUN. We offer 24-hour response service along with complete rental and purchase solutions, backed by ISO 9001:2015 certification. Enjoy peace of mind with our fully integrated spare parts center and 4 service branches across Thailand. For inquiries, contact Sales at Tel. 086-302-1778 or Customer Service at Tel. 086-307-1778.

References

• Common Excavator Backhoe Problems And Solutions. Retrieved April 9, 2024, from https://qilumachinery.com/common-excavator-backhoe-problems-and-solutions/#ftoc-heading-15

Have you ever wondered what processes the roads we drive on go through before becoming firm, safe, and durable pathways? One of the essential cornerstones in this process is the “Road Roller”—a massive machine packed with high power and equipped with front and rear drums or wheels designed to compact all surfaces smooth. This article takes an in-depth look at road rollers, covering pneumatic tire rollers, smooth steel rollers, and their crucial roles in building high-quality infrastructure.

Understanding Road Rollers

A road roller, commonly referred to as a compacting roller, is a specialized heavy engineering vehicle fitted with heavy cylindrical drums mounted on the front, or both front and rear. Its main function is to compact subgrade soil or asphalt smoothly using downward gravitational force exerted by the weight of the machine and drums. This process densifies layers of soil, sand, or aggregated materials to meet specific engineering standards, laying a solid foundation for efficient and seamless construction.

How Road Rollers Work

Road rollers feature massive roller-like wheels arranged in dual front-rear setups or single front drum configurations engineered to distribute weight evenly across surfaces. As the machine slowly moves forward, pressure exerted by the wheels progressively compresses soil particles together, producing a stable, highly durable surface capable of bearing heavy traffic loads and continuous wear.

In standard road paving projects, road rollers work side-by-side with excavators and wheel loaders to achieve the shared goal of constructing strong, long-lasting, visually clean, and safe roadways.

Types of Road Rollers

Road rollers come in various configurations designed specifically for distinct applications across construction projects:

Pneumatic Tire Roller Compactor

Equipped with multiple wide rubber tires, pneumatic rollers compact coarse aggregate materials like soil, sand, or crushed stone layer by layer into a uniform, smooth, and densely packed surface. They are essential machinery in road building due to their ability to rearrange internal soil structures efficiently.

Pneumatic tire rollers excel in high-precision finishing tasks, such as compacting asphalt courses on highways, airport runways, and industrial foundation pads where strict density and flatness tolerances are mandatory. This precise compaction directly ensures traffic safety and structural longevity.

Smooth-Wheel Rollers

Recognizable by their large steel drums situated at the front and rear, smooth-wheel rollers compact coarse materials such as laterite, gravel, sandstone, and well-graded soils. They are generally not recommended for heavy cohesive clay soils.

Smooth-wheel rollers are preferred for high-load projects like expressways, airports, seaports, and dams where surfaces must withstand extreme pressure, heavy loads, and continuous impact without settling.

Sheepsfoot Rollers (Tamping Foot Rollers)

Featuring a front drum studded with protruding rectangular lugs (“feet”) and rear rubber tires, sheepsfoot rollers compact non-cohesive or poor-quality soils, including laterite, gravel, sandy soils, and small stones, by kneading deeper soil layers to increase density.

Sheepsfoot rollers are ideal for strengthening soil cohesion and reducing water permeability in embankment foundations, highway subgrades, harbor facilities, dam cores, and heavy industrial plant foundations.

Vibrating Rollers

Vibrating rollers are among the most widely used compactors. Resembling smooth-wheel rollers but fitted with rear pneumatic tires, they utilize internal eccentric weights to generate dynamic vibrations inside the drum. These vibrations agitate soil particles, causing them to shift and lock closely together. They are commonly applied to sandy soils, gravel-sand mixtures, laterite, and crushed stone bases.

Vibrating rollers are suited for compacting bridge abutments, trench backfills behind culverts, and tight working areas inaccessible to standard heavy rollers.

Pneumatic and steel rollers provide heavy-duty compaction across large work sites, working seamlessly alongside excavators and loaders to complete job requirements efficiently.

For businesses seeking reliable excavation machinery, SIAM SUN provides high-performance wheel loaders and excavators for rental at competitive rates to meet all project demands. We offer multiple models and sizes supported by a 24-hour maintenance response, a 1-year or 2,000-hour warranty, and ISO 9001:2015 certification. Supported by an extensive in-house spare parts warehouse and 4 service centers nationwide, we deliver uncompromised service.

For inquiries, contact Sales at 086-302-1778, Customer Service at 086-307-1778, or via LINE: @siamsun

References

• 6 Types of Rollers Commonly Used in Construction Projects. Retrieved June 25, 2024, from https://www.bigrentz.com/blog/types-of-rollers