Ditch Witch 420sx, Operator'S Manual

Page: 132 / 141

420sx Operator’s Manual
Specifications - 131
420sx
Stroke 4.4 in 112 mm
Engine manufacturer’s gross power rating @ 2300 rpm (SAE J1995) 41.4 hp 30.94 kW
Estimated net power rating @ 2300 rpm (SAE J1349) 41 hp 30.5 kW
Hydraulic System U.S. Metric
Ground drive pump capacity @ 2300 rpm 24.7 gpm 93.5 L/min
Ground drive pump relief pressure 3750 psi 258.5 bar
Attachment pump capacity @ 2300 rpm
Low speed 15.7 gpm 59.4 L/min
High speed 19.5 gpm 73.8 L/min
Attachment pump relief pressure 3000 psi 206.8 bar
Filtration: return/charge full flow; 15 psi (1 bar) bypass, 10 micron nominal
Power Train
Ground drive transmission: hydrostatic drive infinitely variable from zero to maximum, joystick operated
speed/direction control
Differentials: Dana model 44 limited slip
Service brake: ground drive speed/direction control brakes machine hydraulically when moved to
neutral position
Parking brake: disc, hand-operated
Tires: Load rating at 10 mph (16 km/h)
standard 23 x 10.50 -12 6-ply bar lug; inflated to
32 psi (2.2 bar) 1760 lb 798 kg
optional 26x 12-12 4-ply bar lug; inflated to 20 psi
(1.38 bar) 1780 lb 807 kg
Attachment drive transmission: hydrostatic switch-operated two-speed forward and reverse
Battery
Group 34/78, SAE reserve capacity 110 min., SAE cold crank @ 0° F (-18° C), 800 amp