FLETCHER
Model LJ-251-DE
Single Boom Drill Jumbo
Features
Single boom jumbo is designed specifically for low
height operations and efficient drilling of headings as
large as 23 ft. (7m) wide and 16 ft. (4.9m) high in one
set up.
All hydraulic, infinitely variable, rock responsive drill
system allows the machine to be matched to your
drilling requirements. All drill system valves are leak
free replaceable cartridges in manifolds and are in
readily accessible cabinets.
Dual power electric or diesel tramming and electric
hydraulic drilling for cost effectivness with the flexibility of fast heading to heading moves. The compact
size and articulated design allow the jumbo to tram
and setup in tight headings, circular ramps or crosscuts.
High pressure boost pump takes the incoming mine
water and increases the water pressure for better hole
cleaning and more effective drilling. The same water
passes through an efficient water oil cooler.
Two ram type stabilizers provide stability while drilling.
All normal service items including air and hydraulic
filters are located on the outside of the machine for
easy servicing or replacement.
Tram drive is provided by diesel engine or electric
motor driven closed loop hydrostatic system driving
through a two-speed drop box and drive shafts to both
axles. A single joystick controls tram speed, direction and steering.
Engine radiator and hydraulic/air compressor coolers
are mounted at the back of the machine with easy
access for cleaning.
Operator is safe and and comfortable in the canopy
protected control station. Canopy can be hydraulically adjustable for changes in the back height.
All operator controls for drilling and tramming are
conveniently located for comfortable operation.
Complete machine design and component location to
maximize serviceability.
Model LJ-251-DE
(OPTIONAL HYDRAULIC ADJUSTABLE)
General Specifications
Engine
Height
Overall Width
Length - Chassis
Length - Overall
Weight (complete)
Wheel Base
Articulation
Axle Oscillation
Gradeability
EPA Tier III (various engines available)
60.5” (1527mm)
102.5” (2604mm)
277” (7053mm)
486” (12360mm)
38,000 lbs. (17360kg)
144” (3658mm)
80 degrees
7 degrees
25 percent
Maximum Speed
Fuel Tank
Hydraulic Tank
Filters - Suction
Filters - Return
Filters - Pressure
Air Filters
Precleaners
Compressor
Tires
5 mph (8 kph)
50 gallons (189L)
90 gallons (340L)
magnetic & 100 mesh
3 micron
3 micron
Donaldson
Turbinair
15cfm @ 100psi
12.00x20 SXMH, 20 ply
Fletcher Options
Boom Soft Ride
Single lever boom control system
Ansul fire suppression system
Hydraulic lift operator canopy
Angle indicator for feed swing and feed tilt
Hole depth system
Greasing system
J. H. Fletcher & Co. cannot anticipate every
mine hazard that may develop during use of
these products. A roof control plan must be
approved by MSHA before use of these products begins. Proper use, maintenance and
continued use of (OEM) original equipment
parts will be essential for maximum
operating results.
C 7/2010 J. H. Fletcher & Co.
High output drill lights
Foam filled tires
Exhaust purifier
Exhaust particulate filter
Caterpillar, Deere, Mercedes Benz or Deutz diesel engine
Electric powered drill hydraulic system with or without cable reel.
Specifically engineered for each customer’s needs.
®
J. H. Fletcher & Co.
402 High St. P.O. Box 2187
Huntington, WV 25702-2187
jhf@jhfletcher.com
304-525-7811