What causes Boom/arch weld cracks and pin bushing wear on the John Deere Skidder/feller Cab (not A Motorcycle)?

Pressure-wash, inspect welds, pry test all pins Estimated fix cost: $3000-$15000

What causes Hydraulic leaks at hoses, cylinders, swing motor on the John Deere Skidder/feller Cab (not A Motorcycle)?

Cylinder drift, wet spots, oil level and color Estimated fix cost: $800-$6000

Cut speed, bar wear, head slop, tilt pins Estimated fix cost: $5000-$25000

Oil for metal, noise under load, wheel wobble Estimated fix cost: $4000-$20000

Known issues to inspect before buying a used John Deere Skidder/feller Cab (not A Motorcycle). What to check and how much repairs cost.

SERIOUS

Pressure-wash, inspect welds, pry test all pins

Fix cost: $3000-$15000

MODERATE

Cylinder drift, wet spots, oil level and color

Fix cost: $800-$6000

SERIOUS

Cut speed, bar wear, head slop, tilt pins

Fix cost: $5000-$25000

SERIOUS

Oil for metal, noise under load, wheel wobble

Fix cost: $4000-$20000

☐Verify hours against ECU and service records

☐Full function test under load, hot

☐Cold start, check blowby and smoke

☐Inspect tires/tracks, chains, cab glass, ROPS

Strong machines, but deferred maintenance gets expensive fast