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

25/Sep2026

Curing “Upper Structure Won’t Rotate And Loud Clicking From Slewing Ring” On ...

Contaminated slewing ring bearing grease caused spalling on the ring gear teeth, and a sheared slewing reducer pinion lock bolt allowed the pinion to disengage from the ring under load

25/Sep2026

Fixing “Mast Chain Slack And Fork Carriage Judder” On A Raymond 4750 Narrow A...

Stretched mast lift chains and a fatigued chain equalizer tensioner pin caused asymmetric chain tension, inducing carriage judder and uneven fork height at full extension

23/Sep2026

Resolving “Front Axle Won’t Engage And Diff-Lock Warning Flash” On A Volvo L1...

A seized differential-lock engagement solenoid and a corroded hub-connection pressure switch prevented the 100% front-axle lock from engaging, causing the loader to lose traction in wet clay

23/Sep2026

Curing “Loud Grinding From Right Track And Loss Of Drive” On A Caterpillar 32...

A failed final drive planetary bearing allowed metallic debris to circulate through the travel motor, destroying the gear set and shattering the sprocket coupling, causing catastrophic right-track ...

23/Sep2026

Fixing “Random Loss Of Wire Guidance And Aisle-End Collisions” On A Crown TSP...

A worn wire-guidance antenna coil and a misaligned floor-guide wire splice caused intermittent signal dropout, allowing the truck to drift into racking at aisle transitions

21/Sep2026

Resolving “Attachment Chatters And Loses Power Under Load” On A Bobcat T66 Co...

A worn quick-coupler poppet seal and a stuck detent ball in the auxiliary hydraulic selector valve caused internal cross-leakage, starving the attachment motor of full flow

21/Sep2026

Curing “Stabilizer Legs Sinking Under Load” On A JCB 3CX Backhoe Loader

A cracked pilot check valve seat in the stabilizer lock manifold allowed the heavy rear stabilizer cylinders to bleed down slowly, lifting the front wheels off the ground during deep backhoe excava...

21/Sep2026

Fixing “Boom Fails To Extend Under Load And Judders On Retract” On A Genie GT...

Stretched boom extension chains and a fatigued chain tensioner idler pin caused uneven chain tension, preventing the telescoping middle boom from extending under a 3-ton load

20/Sep2026

Resolving “Front Axle Shimmy At Speed And Steering Kickback” On A Komatsu GD6...

Worn articulation-joint upper and lower taper roller bearings allowed the front axle to oscillate unpredictably, inducing steer-kickback and moldboard chatter during high-speed roading

20/Sep2026

Curing “Stuck in Low-Speed Travel And Right-Track Pull” On A Kobelco SK500LC-...

A shorted two-speed shift solenoid locked the travel motor in low ratio, while a cross-leaking rotary joint swivel seal bled travel pressure into the right track case drain, causing asymmetric trac...

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Knowledge

Curing “Upper Structure Won’t Rotate And Loud Clicking From Slewing Ring” On ...

Fixing “Mast Chain Slack And Fork Carriage Judder” On A Raymond 4750 Narrow A...

Resolving “Front Axle Won’t Engage And Diff-Lock Warning Flash” On A Volvo L1...

Curing “Loud Grinding From Right Track And Loss Of Drive” On A Caterpillar 32...

Fixing “Random Loss Of Wire Guidance And Aisle-End Collisions” On A Crown TSP...

Resolving “Attachment Chatters And Loses Power Under Load” On A Bobcat T66 Co...

Curing “Stabilizer Legs Sinking Under Load” On A JCB 3CX Backhoe Loader

Fixing “Boom Fails To Extend Under Load And Judders On Retract” On A Genie GT...

Resolving “Front Axle Shimmy At Speed And Steering Kickback” On A Komatsu GD6...

Curing “Stuck in Low-Speed Travel And Right-Track Pull” On A Kobelco SK500LC-...