LITTLE JOHN

Calling all dam galleries!  Like the modular ACE, the LITTLE JOHN takes drilling in tight spots to a whole new level.  
What separates the LITTLE JOHN?
 
Unit includes
Electric power unit available for drilling indoors.
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STANDARD FEATURES -
Power Unit –
Diesel (2) two cylinder engine, 12-volt electric starting. 31 HP @ 3000 rpm.

Drill Head - 
AW6-S hydraulic drill head with 30" [76 cm] spindle travel, hand chuck with AW rod chuck jaws and thread protector.
RPM in Each Gear Range -
1st Gear - 204 RPM
2nd Gear - 422 RPM
3rd Gear - 772 RPM
4th Gear - 1,302 RPM

Transmission -
4-speed automotive type transmission with one speed in reverse.
Skid Frame -
Structural steel drag base with 16" [40.6 cm] slide base.
Oil Cooler -
Full flow hydraulic oil filter.
Feed Pressure Control Valve (Manual)
Main Winch -
Planetary type wire drum hoist with 75 ft. [22.8 m] of 5/16" [.78 cm] hoisting cable and safety swivel hook.
Cathead -
Hydraulically powered cargo type hoist.
OPTIONAL EQUIPMENT -
Optional Drill Head - 
Model NXC-2s with 30" [76.2 cm] spindle travel.  Speeds: 142, 295, 540, 912 and 117 in reverse.  3-5/8" [9.22 cm] spindle bore.  
Tachometer Kit - 
Electronic device to monitor RPM or drill rods.  
Wireline Hoist -
Hydraulically powered, used for wireline core drilling. 750 ft. [228 m] of 3/16" [.48 cm] wireline cable and internal brake.
Ackermatic Hydraulic Chuck Assembly - 4" [10.1 cm]
4" [10.1 cm] handles all casings AW through NW, all rods a through H (jaws must be changed for each rod or casing size). 
Twin Pole Vertical Hole Derrick - 
Suited for 10 ft. [3.04 m] pulls and shallow hole applications.  Designed for twin pole main leg and two (2) back legs for raising and bracing the derrick.  Assembly includes double sheave for 1" [2.54 cm] manila rope and 5/16" [.78 cm] cable.
Trailer -
Includes ball or pintle type hitch and equipped with electric brakes and four (4) hand screw leveling jacks.