Link-Belt LS-718 Heavy Lift Lattice Boom Crawler Crane For Sale

(1) 1979 Link-Belt LS-718 with "Heavy Lift Attachment" Lattice Boom Crawler Crane

• Seattle Port, roll onto a barge for transport
• Comes with the "Heavy Lift Attachment" 
• See weights/sections for Transport
• Inspection Report provided for USA standards

Crane Information:

Serial Number: 3269-1202

Location: Boyer Logistics Inc. – 7318 4th Ave S, Seattle, WA 98108

Boom Configuration: 35’ base, 40’ mid, 30’ mid, and 35’ tip section

• Total Boom Length: 140 feet

Counterweights and Track Frames:

• Full counterweights are installed:

• A Counterweight: 60,000 lbs

• B Counterweights: 134,500 lbs

• Carbody counterweights appear to be aftermarket additions for stability. These are not listed in the manufacturer’s manual but are professionally installed and securely fastened.

• Track treads (60” wide) are in good condition with approximately 60% wear life remaining.

• Track frames are visually straight, securely attached to the car body, with no signs of misalignment or distortion.

• No major leaks observed from the crawler gearbox; oil levels still need to be confirmed.

Upper Works:

Engine:

• Detroit Diesel GM 8V-92TA, rated at 450 HP.

• Appears to have been overhauled or replaced within the past three years (confirmation needed).

• Clean appearance with typical “wet spots” expected from this engine type.

• Dipstick shows oil in good condition (no evidence of water contamination).

• New alternator and exhaust system installed.

• 3rd Winch Drum

Transmission:

• Twin Disc Model 4-MO-2018-1 (x2), possibly replaced or rebuilt (confirmation required).

• Area around transmissions is saturated with oil; source of oil (likely hydraulic) to be verified post-cleaning.

• Torque converter oil level (estimated at 45 gallons) to be confirmed in Assessment B.

Hydraulics:

• Four Parker pumps (15cc/rev) for boom hoist and swing functions; appear to have been serviced within the past 4 years.

• No visible leaks from motors or boom/swing hydraulics.

• Boom hoist and swing motors show no visible wear or leakage.

Cooling Systems:

• Radiator appears intact with no visible leaks.

• Hydraulic cooler in fair shape, with moderate oil and dirt buildup on fins.

• Coolant and water levels will be checked during engine start-up (Assessment B).

Draw Works and Hoists:

• Chain case oil needs inspection.

• Hydraulic valve bank (electric actuated) shows significant oil leakage; rebuild and resealing recommended.

• Oil filters are leaking around cartridges—replacement and full hydraulic service recommended.

• Clutch bands have adequate friction material; hoist drums appear dry but need burnishing and cleaning of surface rust.

• Evidence of water ingress in the draw works—tin housing repairs needed to prevent future corrosion.

• Estimated labor: 3 personnel for approximately 1 week to fully clean and steam the draw works (avoiding drum overspray).

Operator Cab & Electrical:

• Cab is functional but dirty; electrical system appears intact but saturated with oil in places.

• Roof and front windows show signs of fogging—replacement recommended.

• All primary controls move freely.

• Batteries (4 total) require charging and load testing.

• Power system is energizing the starter circuit correctly.

Gantry, Sheaves, and Boom:

• Gantry bail, pins, and links appear undamaged; rust removal and repainting recommended.

• Sheaves are in good condition with correct cable reeving; no distortions noted.

• Boom snubs properly installed; full boom functionality to be tested under power.

• Boom inspection limited to the lower 10 feet:

• No major dings or dents in lacing or chords.

• Corrosion observed at welds between lacing and chords; suggests prior overloading or structural repair.

• Rust and scale buildup requires surface treatment, weld inspection, and repainting.

• Estimated labor: 3 personnel for 1 week (approx. 120 hours) to clean and refinish all weld joints.

• Heel pins are intact but require cleaning and rust protection.

• Remaining boom sections and tip to be inspected during Assessment B.

Hoist Drums & Rigging:

• Auxiliary hoist cable in functional condition for single-line use.

• Reeve block will require 6-part line for operational lifting; new line recommended.

• Brake function to be confirmed under power.

Summary & Recommendations:

This preliminary inspection indicates that the Link-Belt LS-718 is largely intact and shows signs of prior maintenance and equipment replacement, including the engine, alternator, transmissions, and hydraulics. However, there are several issues requiring attention before operation:

• Oil and hydraulic leaks around valve bank and transmission area

• Boom weld corrosion and surface rust throughout the structure

• Electrical and battery servicing

• General cleaning, inspection, and testing of components

• Confirmation of crane certification requirements

This initial inspection was carried out by David Sjogren, a crane operator with over 27 years of experience operating and inspecting crawler lattice boom cranes, ranging from 1940s-era models to modern units.