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

04/Oct2026

Resolving “Outrigger Jack Won’t Extend And Interlock Blocks Boom” On A JLG G1...

A failed outrigger solenoid cartridge and a corroded jack-stow limit switch prevented outrigger deployment, triggering the boom interlock and shutting down lift function

04/Oct2026

Curing “Track Rattle And Uneven Track Wear” On A Hitachi ZX350LC-7 Excavator

A failed carrier roller bearing allowed the track’s upper span to sag and flap, producing rhythmic rattle and accelerated wear on the track’s guide lugs and sprocket

04/Oct2026

Fixing “Traction Cuts Out After 20 Minutes And Controller Overheat Warning” O...

A seized controller cooling fan and a clogged heat-sink fin array caused the traction controller’s MOSFETs to overheat, triggering thermal derate and shutdown under load

03/Oct2026

Resolving “Loader Jerks And One Side Loses Traction” On A CASE SV280 Skid-Ste...

A stretched right-side drive chain and worn sprocket teeth caused intermittent chain skip under load, producing jerky travel and asymmetric traction on the right track

03/Oct2026

Curing “Front Axle Won’t Engage And 4WD Indicator Flashes” On A New Holland B...

A seized front-axle engagement shift collar and a corroded engagement-pressure switch prevented four-wheel-drive engagement, limiting the machine to rear-wheel traction in soft soil

03/Oct2026

Fixing “Engine Surges And Stalls When Hot” On A Toyota 8FGU25 LPG Forklift

A cracked LPG vaporizer regulator diaphragm and a clogged idle-mixture orifice caused lean surge under hot operating conditions and fuel starvation at high RPM

02/Oct2026

Curing “Steering Becomes Sluggish When Using Bucket And Lift Functions” On A ...

A worn steering priority valve spool allowed auxiliary hydraulic circuits to steal steering flow during combined operations, producing delayed steering response at full articulation

02/Oct2026

Fixing “Bucket Linkage Clunk And Excessive Lateral Play” On A Hitachi ZX200-6...

Worn bucket linkage pins and bushings allowed the bucket’s four-bar linkage to develop lateral slop, producing audible clunks during curl cycles and imprecise bucket control

02/Oct2026

Resolving “Hydraulic Pump Motor Won’t Start And Contactor Chatters” On A Crow...

A pitted and eroded hydraulic pump contactor caused voltage drop and intermittent motor energization, producing lift-function failure and contactor chatter under load

01/Oct2026

Resolving “Boom Lateral Play And Bouncing Under Load” On A JLG 1055 Telehandler

Worn boom wear pads at the telescoping stage allowed metal-on-metal contact between boom sections, producing lateral play, load-induced bouncing, and accelerated boom rail wear

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Knowledge

Resolving “Outrigger Jack Won’t Extend And Interlock Blocks Boom” On A JLG G1...

Curing “Track Rattle And Uneven Track Wear” On A Hitachi ZX350LC-7 Excavator

Fixing “Traction Cuts Out After 20 Minutes And Controller Overheat Warning” O...

Resolving “Loader Jerks And One Side Loses Traction” On A CASE SV280 Skid-Ste...

Curing “Front Axle Won’t Engage And 4WD Indicator Flashes” On A New Holland B...

Fixing “Engine Surges And Stalls When Hot” On A Toyota 8FGU25 LPG Forklift

Curing “Steering Becomes Sluggish When Using Bucket And Lift Functions” On A ...

Fixing “Bucket Linkage Clunk And Excessive Lateral Play” On A Hitachi ZX200-6...

Resolving “Hydraulic Pump Motor Won’t Start And Contactor Chatters” On A Crow...

Resolving “Boom Lateral Play And Bouncing Under Load” On A JLG 1055 Telehandler