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

15/Oct2026

Resolving “Telehandler Boom Jerks During Extension And Third Stage Lags” On A...

A broken boom chain tensioner spring and elongated extension chains caused the third-stage telescope to extend out of sync with the second stage, producing jerky boom lift and inconsistent load height

15/Oct2026

Curing “Right Track Loses Power And Final Drive Gear Oil Leaks Externally” On...

A failed final drive motor’s rotary-shaft seal allowed gear oil to leak outward and hydraulic oil to migrate inward, degrading travel-motor efficiency and producing right-track power loss under load

15/Oct2026

Resolving “Left Outrigger Slowly Retracts And Crane Levels Off Outrigger Pad”...

A leaking outrigger jack cylinder’s piston seal and a contaminated load-holding (pilot check) valve allowed hydraulic oil to bypass internally, causing slow outrigger retraction and crane out-of-le...

14/Oct2026

Resolving “Forklift Travel Motor Loses Power And Overheats Under Load” On A L...

A failing traction controller’s cooling fan and degraded traction motor brush-to-commutator contact caused progressive power loss, thermal derating, and excessive current draw

14/Oct2026

Fixing “Forklift Mast Chains Unevenly Tensioned And Carriage Tilts During Lif...

A worn mast chain anchor pin and an elongated right-side lift chain caused carriage tilt during lift cycles, producing uneven load distribution and accelerated mast-channel wear

14/Oct2026

Curing “Boom Cylinder Drift Downward Under Load And Pilot Pressure Fluctuatio...

A leaking boom hold valve’s poppet seat and contaminated pilot oil in the main control valve’s pilot system combined to produce boom drift under load and erratic joystick response

14/Oct2026

Resolving “Excavator Swing Drift And Grinding Noise On Full 360-Degree Slew” ...

A worn swing brake’s friction plates and contaminated swing motor case-drain oil caused upper-structure drift when stopped and grinding noise during slewing under load

13/Oct2026

Resolving “Forklift Operator Pedestal Seat Won’t Lock And Seat-Interlock Ligh...

A failed seat switch’s internal contacts and a worn seat-locking latch caused intermittent seat-interlock activation, blocking lift function and displaying a persistent warning

13/Oct2026

Fixing “Forklift Loses Travel Power After 20 Minutes And Smells Of Hot Electr...

A failing traction controller’s IGBT module and degraded traction motor brush springs caused thermal derating, producing progressive loss of travel power and an electrical burning smell

13/Oct2026

Curing “Vibration Loss During Compaction Passes And Excessive Drum Heat” On A...

A worn vibratory drum’s eccentric shaft bearing and a leaking drum vibration motor shaft seal caused progressive loss of vibration amplitude, drum overheating, and inconsistent compaction

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Knowledge

Resolving “Telehandler Boom Jerks During Extension And Third Stage Lags” On A...

Curing “Right Track Loses Power And Final Drive Gear Oil Leaks Externally” On...

Resolving “Left Outrigger Slowly Retracts And Crane Levels Off Outrigger Pad”...

Resolving “Forklift Travel Motor Loses Power And Overheats Under Load” On A L...

Fixing “Forklift Mast Chains Unevenly Tensioned And Carriage Tilts During Lif...

Curing “Boom Cylinder Drift Downward Under Load And Pilot Pressure Fluctuatio...

Resolving “Excavator Swing Drift And Grinding Noise On Full 360-Degree Slew” ...

Resolving “Forklift Operator Pedestal Seat Won’t Lock And Seat-Interlock Ligh...

Fixing “Forklift Loses Travel Power After 20 Minutes And Smells Of Hot Electr...

Curing “Vibration Loss During Compaction Passes And Excessive Drum Heat” On A...