Owner manual

JT60/JT60 All Terrain Operator’s Manual Specifications - 209
Operational U.S. Metric
Spindle speed (per SAE J2022)
inner pipe 0-250 rpm 0-250 rpm
outer pipe 0-240 rpm 0-240 rpm
Spindle torque (per SAE J2022)
inner pipe, max 2000 ft•lb 2712 N•m
outer pipe, max 9000 ft•lb 12202 N•m
Carriage speed (per SAE J2022) 0-100 fpm 0-30.5 m/min
Pullback force (per SAE J2022) 60,000 lb 267 kN
Thrust force (per SAE J2022)
actual, All Terrain mode 60,000 lb 267 kN
actual, JT and AT dirt modes 60,000 lb 267 kN
Minimum bore diameter
All Terrain with roller cone bit 6.25 in 159 mm
JT with soil bit 5 in 127 mm
Backream diameter variable variable
Ground drive speed (per SAE J2022)
forward 0-2.5 mph 0-4 km/h
reverse 0-2.5 mph 0-4 km/h