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Inspection Summary
Inspected by Boom & Bucket
1200+ inspections
50+ years experience
20+ certifications
What's great
The automatic fire suppression system has been installed internally, and is protected from damage by debris and rock
In addition to the up/down and in/out boom motions demonstrated in the video, the tunnel boom also has radial motion capabilities designed to reach the arched area of a tunnel
All operator meters and displays in good working order, including rear view camera
Hydraulics are in above average condition, no unusual sounds heard during operation
Easy engine start up, smooth idle; no blow by seen at operating temps
Smooth and quiet rotation of swing table in both directions
Good function of bear and boom, full 360 orbit and tunneling rotation
Good undercarriage appearance, no panel damage or wetness observed
What needs work
The inspection reports a surge/rubbing noise heard during forward and reverse travel - this comment refers to the Liebherr travel alarm, installed on all underground equipment
Some rust and wear seen on upper edge and upper surface of the blade
Top left corner of the counterweight is dented
About this equipment
This machine currently has 2,300 hours of operation on one light rail tunnel project. It has been meticulously maintained, and all of the applicable Performance Improvement Programs (PIP) have been installed by a local Liebherr dealer.
Features
Automatic Fire Suppression System
Automatic Central Lubrication System
Air Pre-Filter with Dust Trap
Reversible Fan Drive
Emergency Engine Shut-Down on Both Sides
Additional Headlights on Counterweight & in the Engine Hood on the Upper Carriage
Enclosed Cab for Tunnel Use
Emergency Rear Exit Window
Automatic Air Conditioning System
Rear & Side Side View Cameras
Specifications
Engine: Liebherr D944 A7-24 201Hp 8L I4 TurboD
Hi + Low Planetary Reduction Drive
Tier 4 Final Emissions with SCR (Aftertreatment Only)
Hydraulic Relief: 5076 psi
Hydraulic Capacities: Tank- 77 gal / System-137 gal
Track Links: 49 - Double Grouser
Attachment: Ripper Demolition Bucket - 35 in, 1+2 Teeth
Listings may picture specialty attachments not included in the sale. If you have questions about machine configuration, contact our sales team.
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Hear what customers are saying about Boom & Bucket.
Y'all got a good group of people that's keyAbe F - Texas5/5I'm not your biggest client, but I was treated like I was.Ed K - Texas5/5It was like old fashioned service.Joe Q - Georgia4/5Everything went well.John L - New Mexico5/5It was almost too good to be true.Cleveland J - Texas5/5