Komatsu PC55MR-3 » General Equipment & Supplies, Inc.

Komatsu PC55MR-3

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Performance and Versatility
• Standard auxiliary hydraulics
• Standard thumb mounting bracket
• Three track options: rubber, steel, roadliner
• Automatic two-speed travel
• ISO/SAE pattern change valve
• Optional Power Angle blade

Operator Comfort
• Large operator platform
• Adjustable suspension seat with retractable seat belt
• Pilot proportional joystick controls
• Easy entry and egress
• Low noise

Service and Maintenance
• Wide opening engine hood and side covers
• Side-by-side radiator and oil cooler are easily inspected
• Grease points for work equipment are on the same side of the boom and arm
• Tilt-forward operator’s station provides full access to engine and hydraulic components
• Hydraulic hoses are alpha-numerically marked or color coded making them easy to identify

KOMTRAX® equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology.

Value, Durability, and Strength
• KOMTRAX® wireless equipment monitoring system
• High strength X-track frame
• Castings are used for boom foot, tip, and swing yoke
• Large diameter swing pin
• Reinforced arm
• O-ring face seal hydraulic fittings
• Moisture/dust resistant electrical connectors

Peace of Mind
• Two-post ROPS canopy or ROPS cab
• Neutral engine start system
• Excellent visibility enhances job site awareness
• Low emission Komatsu engine with dual element air cleaner
• One key operates the ignition and all machine locks


Model   Komatsu 4D88E-6
Type   Direct injection
Piston displacement 134 in³ 2.19 ltr
Horsepower @ 2400 rpm:    
Net (ISO 9249/SAE J1349) 38.2 HP 28.5 kW
Electric System    
Operation voltage 12 V  
Battery 72 Ah  
Alternator 40 A  
Starter 2.3 kW  
Hydraulic System    
Type   HydrauMind
Main pump:    
Type   Variable displacement x 2
Gear x 1    
Maximum flow 14.1 x 2 + 8.9 gal/min 53.5 x 2 + 33.8 ltr/min
Hydraulic motors:    
Travel   Variable displacement x 2
Swing   Fixed displacement x 1
Maximum pressure setting 3,840 psi 270 kg/cm²
Auxiliary flow 18.5 gal/min 70 ltr/min
Travel speed:    
High 2.9 mph 4.6 km/hr
Low 1.7 mph 2.8 km/hr
Swing speed   9.0 rpm
Ground pressure 4.4 psi 0.31 kg/cm²
Max. drawbar pull 9,440 lb 4280 kg
Gradeability   30°
Bucket digging force (ISO) 8,770 lb 3980 kg
Arm crowd force (ISO) 5,380 lb 2440 kg
Drives and Brakes    
Drive method Hydrostatic  
Type of travel brake Hydraulic lock  
Type of travel shoe Rubber  
Adjustment of the track tension Grease gun  
Number of carrier rollers (each side) 1  
Number of track rollers (each side) 4  
Refill Capacities    
Fuel tank 17.2 U.S. gal 65 ltr
Hydraulic tank 5.3 U.S. gal 20 ltr
Engine 2.0 U.S. gal 7.5 ltr
Coolant 2.2 U.S. gal 8.5 ltr
Operating Weight (approximate)    
Operating weight    
(with ROPS canopy and rubber shoe) 11,380 lb 5160 kg
Width x height 6'5" x 1'2" 1960 x 355 mm