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Model Yanmar 4TNV88 BXPYBD Cylinders 4 Bore/Stroke in (mm) 3.46 x 3.54 (88 x 90) Displacement in 3 (L) 133.5 (2.2) Fuel injection Direct Fuel injection pump Mechanical Fuel Diesel Fuel flter Full fow, paper element Cooling Liquid Horsepower per SAE J1349 @ 2400 rpm

Net hp (kW) 39 (29)

Maximum torque @ 1440 rpm Net lbf (N•m) 97 (131)

ENGINE

Boom

Swing degrees 70 left / 60 right Length ft in (m) 9’ 6” (2.89) Arm

Length ft in (m) 5’ 5” (1.65)

BOOM/ARM

Number of rollers

Top each track 1 Bottom each track 5 Gradeability percent (degrees) 58 (30) Drawbar Pull lbf (kN) 12,409 (55.2)

UNDERCARRIAGE

Hydraulic tank

Refll capacity gal (L) 9 (34) Total system gal (L) 16 (61) Engine oil w/flter change gal (L) 2 (7.4) Fuel gal (L) 19.8 (75) Radiator gal (L) 1.6 (6.0)

SERVICE CAPACITIES

With 551 lb (250 kg) bolt-on counterweight, 165 lb (75 kg) operator, 247 lb (112 kg) bucket, full fuel and standard equipment

lb (kg) 12,295 (5577)

OPERATING WEIGHT

Voltage 12 volts, negative ground Alternator amp 40 Batteries (1) 12V Low-maintenance

ELECTRICAL

Pumps

Tandem variable displacement axial piston pump Capacity – Maximum gpm (L/min) 2 x 15 (2 x 57.1) Auxiliary Flow gpm (L/min) 15 (57.1) System relief pressure – Standard psi (MPa) 3,336 (23.0) Pilot control hydraulic system

Pump (1) Gear pump Maximum capacity gpm (L/min) 4 (15.2) Relief pressure psi (MPa) 514 (3.5)

Control valves – 11 spool

Pilot control for left/right track travel, boom, arm, bucket & swing Manual control for breaker & backfll blade Swing/Dozer blade

Motor (1)

Fixed displacement axial piston design Speed rpm 0-8.9 Brake Hydraulic Brake Tail swing radius ft in (mm) 4’ 2” (1280) Tail swing overhang ft in (mm) 0’ 11.7” (299) Travel

Motor (2)

Two-speed axial piston design Final drive Planetary gear reduction Travel speeds – forward/reverse

Low mph (km/h) 1.7 (2.7) High mph (km/h) 2.9 (4.6)

HYDRAULICS

Boom cylinder (1)

Bore diameter in (mm) 3.94 (100) Rod diameter in (mm) 2.17 (55) Stroke in (mm) 26.8 (680) Arm cylinder (1)

Bore diameter in (mm) 3.54 (90) Rod diameter in (mm) 1.97 (50) Stroke in (mm) 28.9 (735) Bucket cylinder (1)

Bore diameter in (mm) 2.95 (75) Rod diameter in (mm) 1.57 (40) Stroke in (mm) 21.4 (543)

HYDRAULIC CYLINDERS

55SRx SPECIFICATIONS

Page 13 - brochures

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