SPECIFICATIONS ENGINE Model WB-N/WBPS-N.............. Komatsu SD-XFH WB-N/WBPS-N/.. Komatsu SD-SFA Type Vertical, -cycle water-cooled diesel engine Aspiration......................................... Turbocharged Combustion........................................Direct injection Compression ratio...........................................7: Number of cylinders............................................ Cylinder, bore x stroke..................... x mm." x.9" Piston displacement................................. ltr 9 in Horsepower rating - WB-N/WBPS-N Gross horsepower @ rpm..................... 9. kw 9 Hp Flywheel/net horsepower @ rpm (SAE J 9)...... kw 7 Hp Max. torque @ rpm......................... Nm 7 ft lb Horsepower rating - WB-N/WBPS-N/ Gross horsepower @ rpm.................... 7. kw Hp Flywheel/net horsepower @ rpm (SAE J 9)..... 7. kw 9 Hp Max. torque @ rpm......................... Nm 7 ft lb Air cleaner........... dry, dual element with dust evacuator and indicator ELECTRICAL SYSTEM Electric circuit with protected connections in all exposed areas Voltage..................................................... V Battery........................................... Ah ( cca) Alternator................................................... A Electric starting.............................................. kw REFILL CAPACITIES Engine oil....................................... 7.9 ltr.us gal Cooling system................................... ltr.7 US gal Diesel tank.................................... ltr. US gal Hydraulic oil tank................................ 9 ltr. US gal Front axle oil..................................... ltr. US gal Rear axle oil.................................... 7. ltr. US gal Gear box oil...................................... 7 ltr. US gal STEERING WB-N/WBPS-N/WB-N/WBPS-N The front wheels are controlled by a hydrostatic load sensing steering priority valve system Turning radius at outer edge of front tire: Without Brakes.................................... mm '" With Brakes.................................... mm '" The new Komatsu steering system ensures excellent maneuverability and versatility and allows the operator to choose from the following three different steering modes by the push of a button: Two Wheel Steering, Four Wheel Coordinated Steering, Crab Steering Turning radius ( wheel coordinated steering mode, w/o individual braking): Edge of tire.................................... 7 mm '" Edge of bucket................................... 7 mm '" AXLES HYDRAULIC SYSTEM The Hydraumind hydraulic system affords the operator very precise backhoe movements. This system is energy efficient and incorporates two different working modes: economy and constant power. The advanced hydraulic system includes the speed up function to increase the working speed of the front loader. System.............................................. HydrauMind Type....................... Closed center Load Sensing System (CLSS) with economy/power selector switch (power mode is the default setting) Pump type.......................... Variable displacement axial piston Pump control system....... Load Sensing set to adjust the hydraulic power Main Valve............ Load Independent Flow Divider LIFD modular type Max delivery............................... ltr/min. gal/min Work pressure WB-N/WBPS-N........................ 7 bar, psi WB-N/WBPS-N/.......... bar, psi WB-N/WBPS-N/WB-N/WBPS-N Heavy duty axles with planetary reduction gears in the wheel hubs. Front axle total oscillation angle is. Differential lock in the rear axle controlled by electro-hydraulic system with a switch on loader lever. Max front strength (Dynamic).................... dan,7 lb Max front strength (Static)..................... 7 dan, lb Max rear strength (Dynamic)................... dan 7, lb Max rear strength (Static)...................... dan 7, lb Axles are limited slip, allowing for power traction, even while turning. Front axle total oscillation angel is. Max front strength (Dynamic)................... dan, lb Max front strength (Static)..................... dan, lb Max rear strength (Dynamic)................... dan, lb Max rear strength (Static)...................... dan, lb
BAC K H O E L OA D E R S WB/ TRANSMISSION WB-N/WB-N Switching between WD and WD is achieved through an electro-hydraulic system. The transmission is operated through a torque converter and a power shift reversing shuttle; the mechanical -speed gearbox is synchronized. Travel Speeds st nd rd th km/h mph km/h mph km/h mph km/h mph Forward..9. 7... 7.. Reverse..9. 7... 7.. WBPS-N/WBPS-N/ Electronically-controlled, four-wheel-drive, full powershift transmission. Twist Grip or EGM TM (Electronic Gear Management) gear Controls for changing driving direction and gears at full power without disengaging the drive. Twist Grip Controls in manual mode on WBPS-N/WBPS-N EGM TM Gear Controls in automatic or manual mode on Travel Speeds st nd rd th km/h mph km/h mph km/h mph km/h mph Forward... 7.....9 Reverse... 7... LOADER The design of the front loader allows for better tensile strength distribution and parallel movements when lifting and lowering the bucket. Due to the linkage geometry, the greasing points have been dramatically reduced. Standard bucket width................................ mm 7'9" Capacity (SAE).....................................9 m.yd STD bucket weight................................. kg, lb Lifting capacity at maximum height: WB-N/WBPS-N....................... 7 dan,7 lb WB-N/WBPS-N/.......... 9 dan,9 lb Lifting capacity at ground level: WB-N/WBPS-N...................... 7 dan, lb WB-N/WBPS-N/......... 7 dan, lb Breakout force: WB-N/WBPS-N...................... dan,79 lb WB-N/WBPS-N/......... dan, lb BACKHOE The boom has a rounded profile and a reinforced structure built with cast ends, allowing rotation while maintaining high rotation torque. Bucket breakout force: WB-N/WBPS-N...................... dan, lb WB-N/WBPS-N/......... dan, lb Dipper digging force: WB-N/WBPS-N....................... 9 dan, lb WB-N/WBPS-N/.......... dan 9, lb 9
DIMENSIONS AND WORKING RANGE M R O A B F N C E D G J H I K L P Q T S
BAC K H O E L OA D E R S WB/ U V W X WB-N WBPS-N WB-N WBPS-N A Max. height mm '9" mm '9" mm '" B Hinge pin height mm '" mm '" mm '" C Cab height 7 mm 9'" 7 mm 9'" 7 mm 9'" D Dumping height 7 mm 9'" 7 mm 9'" 7 mm '" E Dumping reach 7 mm '" 7 mm '" mm '" F Dumping angle G Rollback angle H Digging depth 9 mm " 9 mm " mm " I Bucket reach (in transport) mm '" mm '" mm 7'" J Ground clearance mm '" mm '" mm '" K Wheel base 7 mm 7'" 7 mm 7'" 7 mm 7'" L Backhoe swing center distance 7 mm '" 7 mm '" 7 mm '" M Transport length 7 mm '" 7 mm '" 7 mm '" N Max. dumping height 9 mm '" 7 mm '" mm '" with telescopic arm mm '" mm '" mm '" O Max. digging height 9 mm '" mm '" mm '" with telescopic arm 9 mm '" 9 mm '" 9 mm 9'" P Digging depth (SAE) mm '" 7 mm '" 9 mm '9" retracted telescopic arm 7 mm '" 7 mm '" mm '" extended telescopic arm mm '" mm '" 7 mm 7'" Q Max digging depth mm '7" 7 mm '7" mm '" retracted telescopic arm mm '9" mm '9" mm '" extended telescopic arm 9 mm '" 9 mm '" mm 7'" R Reach at max. height mm 9'" mm '" mm '" with telescopic arm mm '" mm '" mm '" S Max. reach from swing center mm '" 7 mm '9" mm 9'" with telescopic arm 7 mm '7" 7 mm '7" mm '7" T Digging reach 7 mm 9'" 7 mm 9'" 9 mm 9'" U Rear tread mm '" mm '" 9 mm '" V Front tread 9 mm '" 9 mm '" 9 mm '" W Overall width (with bucket) mm 7'9" mm 7'9" mm '" X Backhoe transport height mm '" mm '" mm '"
LIFTING CAPACITY WB-N/WBPS-N PRESSURE: kg/cm psi Standard Arm 9 kg, lb 7 kg,9 lb 97 kg,7 lb Lift capacity figures comply with SAE J. Units are equipped with standard equipment and mm " heavy duty backhoe bucket. Retracted Telescopic Arm kg, lb 9 kg, lb kg,9 lb 7 kg,9 lb 9 kg, lb kg, lb 9 kg, lb kg, lb 7 kg, lb 7 kg,7 lb 9 kg,9 lb kg, lb kg,7 lb kg, lb 9 kg, lb 9 kg, lb 9 kg,79 lb 97 kg, lb 9 kg,7 lb 9 kg, lb 9 kg,7 lb - - - - - - - - - - - - - - - kg, lb kg,7 lb 7 kg,9 lb 99 kg, lb kg 7,77 lb 9 kg 7,9 lb 7 kg, lb kg,9 lb kg, lb kg, lb kg, lb 9 kg, lb kg,9 lb kg,79 lb kg, lb kg, lb kg,9 lb kg, lb 7 kg, lb kg, lb - - Extended Telescopic Arm kg,7 lb 9 kg,9 lb 9 kg, lb kg,7 lb kg, lb 7 kg, lb 9 kg, lb 7 kg, lb 7 kg, lb 7 kg, lb - - - - 77 kg,7 lb 77 kg,7 lb 77 kg,7 lb 7 kg, lb 7 kg,7 lb 7 kg,9 lb 7 kg,9 lb - 7 kg, lb - - - - - - - - - - 7 - - 7 kg, lb 7 kg, lb 7 kg, lb 79 kg,7 lb kg,7 lb kg,77 lb - - - - - - - - kg, lb 7 kg,7 lb - - - - - 7 - -