High Fuel Consumption? Low Efficiency? These Components of The Crane Need To Be Replaced!

Why does someone else's fuel consumption of the same crane be 30% lower than yours?

Why does the hoisting speed of the new machine become slower and slower after being used for two years?

It's not that the equipment is old, but that these key components are "sounding the alarm"!

The culprit behind the soaring fuel consumption: Aging detection of three Major components

Hydraulic system: The "heart" of the crane

Symptoms: Slow movement, abnormal increase in oil temperature, frequent replacement of hydraulic oil.

Key components:

Hydraulic pump/motor: Insufficient pressure after wear, resulting in continuous high load on the engine.

Seals: Aging and oil leakage, fuel consumption increases by more than 20%.

Solution: Check the oil quality every 500 hours and replace the seals every 2000 hours.

 Engine: The Invisible Killer of Power attenuation

Symptoms: Increased black smoke, difficulty in starting, unstable speed under rated load.

Key components:

Fuel injector: Blockage leads to incomplete fuel combustion.

Air filter: Dirt causes insufficient air intake and increases fuel consumption by 15%.

Solution: Clean the filter element weekly and professionally calibrate the fuel injectors every six months.

Transmission System: The Overlooked "Energy Black Hole"

Symptoms: Abnormal noise from gears, jerky gear shifting, and decreased power transmission efficiency.

Key components:

When the clutch plate slips, the engine idles and fuel consumption soars.

Bearings/gear sets: Insufficient lubrication leads to frictional loss.

The key to low efficiency: Performance deterioration of two types of components

Steel wire rope and pulley block

Symptoms: Shaking during hoisting, deformation of rope strands, and jamming of pulley rotation.

Data: The efficiency of worn steel wire ropes decreases by 40%, and the risk of breakage increases (with safety standards attached).

Maintenance suggestions: Check the number of broken wires daily and measure the diameter wear rate monthly.

2. Electrical control system

Symptoms: Delayed operation response, overheating of the frequency converter, frequent false alarms.

Key components:

Contactor contacts: Oxidation leads to unstable signal transmission.

Sensor: Dust coverage causes distortion in data feedback.

3. User's Actual Test Case: Comparison Before and after Component Replacement

After replacing the hydraulic pump, the monthly fuel consumption of a single crane dropped from 3000L to 2100L.

The steel wire rope and pulley block have been updated, increasing the hoisting efficiency by 25%.

 Ultimate Maintenance Guide: 3 Steps to Lock in Problems

Listen: Abnormal noise from the engine and howling of the hydraulic system.

Look: Oil stain leakage, wire rope burrs, dashboard alarm code.

Test: Use a pressure gauge to detect the hydraulic system and an infrared thermometer to check the bearing temperature.

The crane can't speak, but fuel consumption and efficiency are its "health indicators"!

Regular maintenance not only saves money but also adds to safety!