Construction machinery repairing and maintenance knowledge for brand equipments Factory China - New - Liteng Machinery

26/May2026

Excavator Maintenance Tip: The Plugged Pilot Drain Line And Ghost Drift

An excavator that slowly drifts down or drifts out of position when parked is usually suffering from leaky cylinder piston seals. But if you replace the seals and the drift continues, you need to l...

26/May2026

Loader Maintenance Case: The Regenerative Pressure Intensifier in The Bucket

A wheel loader was brought in with a recurring, violent failure. Every few weeks, while prying out a stubborn rock, the rod-end hydraulic hose on the bucket cylinder would violently burst, spraying...

25/May2026

Forklift Maintenance Case: Kingpin Shimmy Disguised As A Steering Valve Failure

A heavy-capacity cushion-tire forklift was experiencing violent "death wobble." At low speeds, the steer tires would suddenly dart left and right violently, shaking the entire truck and nearly thro...

25/May2026

Excavator Maintenance Tip: The Swing Motor Anti-Cavitation Check Valve

When an operator slews a 20-ton excavator house and lets go of the joystick, the machine must stop immediately. The swing brake clamps down, and the massive momentum of the house is absorbed by the...

25/May2026

Loader Maintenance Case: The Plugged Neutralizer Orifice

A wheel loader was brought in with a dangerous symptom. Every time the operator pushed into a tough gravel bank, the transmission would violently pop out of gear into neutral. They could drive acro...

24/May2026

Forklift Maintenance Case: The Hall Effect Sensor Contamination On Fork Posit...

A reach truck equipped with a hydraulic fork positioner (which allows the operator to adjust the width of the forks from the seat) was crushing expensive product. The operator would set the forks t...

24/May2026

Excavator Maintenance Tip: The Pilot Accumulator Blowout

When an excavator's main engine dies, the hydraulic pumps stop. The boom, which weighs thousands of pounds, should theoretically crash to the ground. It doesn't, because of a small but critical com...

24/May2026

Loader Maintenance Case: Brake Cooling Circuit Cavitation

A wheel loader working in a steep quarry was brought in with a terrifying symptom. It operated perfectly on flat ground, but when driving down a 10% incline with a full bucket, the operator would a...

23/May2026

Forklift Maintenance Case: Magnetic Brake Dust Killing The Encoder

A reach truck was experiencing violent, phantom faulting. The operator would drive down the aisle, extend the reach carriage into the rack, and suddenly the truck would lock up, dropping the load t...

23/May2026

Excavator Maintenance Tip: Differentiating Main Relief Failure From Pump Wear

When an excavator is weak and slow under load, the default diagnosis is often a worn-out main hydraulic pump. But tearing down a main piston pump is an expensive, multi-thousand-dollar mistake if t...

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Knowledge

Excavator Maintenance Tip: The Plugged Pilot Drain Line And Ghost Drift

Loader Maintenance Case: The Regenerative Pressure Intensifier in The Bucket

Forklift Maintenance Case: Kingpin Shimmy Disguised As A Steering Valve Failure

Excavator Maintenance Tip: The Swing Motor Anti-Cavitation Check Valve

Loader Maintenance Case: The Plugged Neutralizer Orifice

Forklift Maintenance Case: The Hall Effect Sensor Contamination On Fork Posit...

Excavator Maintenance Tip: The Pilot Accumulator Blowout

Loader Maintenance Case: Brake Cooling Circuit Cavitation

Forklift Maintenance Case: Magnetic Brake Dust Killing The Encoder

Excavator Maintenance Tip: Differentiating Main Relief Failure From Pump Wear