User manual ZENOAH KOMATSU PC850-8 BROCHURE

[. . . ] · World's first cooled EGR system with bypass-assist type electronically controlled venturi · Offers high power and low fuel consumption, while conforming to Tier 3 emission regulations. · Reduces NOx emission approximately 40%. · Equipped with an electronically controlled variable speed fan. Economy Mode Four-level Setting Enables operator to select the appropriate Economy mode level to match production requirement with lowest fuel consumption. Reduction of Ambient Noise Meets the EU Stage 2 noise regulations. [. . . ] Quarry Bucket with KMAX Tooth * Koma-hard materials (KVX materials): Komatsu developed, wear-resistant, reinforced materials. Brinell hardness: 500 or more (180kgf/mm2 class). 6 STEP 4 pin locking shaft To remove fastener, use the correct size socket to rotate the pin locking shaft 90° counter-clockwise (as shown). Repeat steps 1-3 for a new installation. 7 PC850-8 H Y D R A U L I C E X C AVAT O R HYDRAULIC EXCAVATOR PC850-80 Safety Features Step light with timer provides light for about one minute to allow the operator to get off the machine safely. WORKING ENVIRONMENT The cab interior is spacious and provides a comfortable working environment. . . Large Comfortable Cab Comfortable Cab New PC850-8's cab offers an exceptionally comfortable operating environment. The large cab enables full flat reclining of the seat back with headrest. Pump/engine room partition prevents oil from spraying on the engine if a hydraulic hose should burst. Pressurized Cab The optional air conditioner, air filter and a higher internal air pressure (6. 0 mm Aq 0. 2" in Aq) prevent external dust from entering the cab. Automatic Air Conditioner (optional) A 6, 900 kcal air conditioner is utilized. The bi-level control function keeps the operator's head and feet cool and warm respectively. This improved air flow function keeps the inside of the cab comfortable throughout the year. Seat with headrest reclined full flat Photo may include optional equipment. Low Noise Design Noise level is remarkably reduced, not only engine noise but also swing and hydraulic relief noise. Thermal and fan guards are placed around high-temperature parts of the engine and fan drive. Anti-slip Plates Spiked plates on working surfaces provide anti-slip performance. Low Vibration with Cab Damper Mounting PC850-8 uses a new, improved cab damper mount system that incorporates longer stroke and the addition of a spring. The new cab damper mounting combined with a strengthened left and right side deck, aids vibration reduction at the operator's seat. Vibration at floor is reduced from 120 dB (VL) to 115 dB (VL). dB (VL) is index for expressing size of vibration. Multi-position Controls The multi-position, PPC (proportional pressure control) levers allow the operator to work in comfort while maintaining precise control. A double-slide mechanism allows the seat and control levers to move together or independently, allowing the operator to position the controls for maximum productivity and comfort. Rigid and Safe Operator's Cab OPG top guard The OPG top guard securely protects the operator's cab and conforms to the ISO standard. Single sheet fixed glass The glass installed in the machine Anti-Slip Plates Horn interconnected with warning light (optional) give Seat Sliding Amount: 340 mm 13. 4", increased 120 mm 4. 7" Rubber Spring has excellent visibility since it is laminated to prevent shortening and has less vibration. See-through skylight equipped with a sun shade The upward visibility is excellent. Additional head lamp visual and audible notice of the excavator's operation when activated. Silicon Oil Comparison of Riding Comfort Cab Damper Mounting Multi-Layer Viscous Mount Vertical direction on graph shows size of vibration. Conditions: Traveling over obstacle one side track Traveling speed forward high Night operation is safe. Lower wiper (optional) Lower windshield wiper improves visibility in rain. Floor Vibration Horn interconnected with warning light (optional) give visual and Warning light (optional) Defroster (optional) Cab Frame Mounted Wiper 8 audible notice of the excavator's operation when activated. Bottle Holder and Magazine Rack 9 PC850-8 H Y D R A U L I C E X C AVAT O R HYDRAULIC EXCAVATOR PC850-80 EASY MAINTENANCE FEATURES Komatsu Designed the PC850-8 for Easy Service Access. Easy Checking and Maintenance of Engine Engine check points are concentrated on one side of the engine to facilitate daily checks. Thermal guards are placed around high-temperature parts such as turbocharger. High-Quality EMMS Self-diagnostic System Steps Connected to the Machine Cab Steps allows access from left hand catwalk to top of machine for engine check and maintenance. · Abnormality Checking Function In case any abnormality should occur, the monitoring system checks whether hydraulic pressure, solenoid ON/OFF status, engine speed, electrical connections, etc. are in the normal conditions to keep the machine downtime to a minimum. · Maintenance History Memory Function Maintenance records such as replacement of engine oil, hydraulic oil, filters, etc. · Trouble Data Memory Function All the trouble data are stored to serve as references for future trouble-shooting. Wide Catwalk and Large Handrails Easier, safer operator cab access and maintenance checks. Maintenance display of the EMMS multi-color monitor (Example) Normal display Maintenance time display Engine oil replacement display Abnormal information & checking Function display of the EMMS multicolor monitor (Example) Battery charging abnormal display Error code display Display for night work Easy Cleaning of Radiator Reverse-rotation function of the hydraulic driven fan facilitates cleaning of the cooling unit. [. . . ] swing radius Hydraulic cylinders: Number of cylinders--bore x stroke Boom. 1 ­ 225 mm x 1420 mm 7. 9" x 76. 8" 7. 3" x 63. 4" 7. 3" x 71. 7" 8. 9" x 55. 9" PC850SE-8: Operating weight, including 7100 mm 23'4" boom, 2945 mm 9'8" arm, SAE heaped 4. 3 m3 5. 62 yd3 backhoe bucket, operator, lubricant, coolant, full fuel tank, and the standard equipment. PC850-8 Operating Ground Weight Pressure 128 kPa 78700 kg 1. 31 kgf/cm2 173, 500 lb 18. 6 psi 112 kPa 79500 kg 1. 14 kgf/cm2 175, 270 lb 16. 2 psi PC850SE-8 Operating Ground Weight Pressure 127 kPa 78300 kg 1. 30 kgf/cm2 172, 620 lb 18. 5 psi 111 kPa 79100 kg 1. 13 kgf/cm2 174, 380 lb 16. 1 psi 2440 8ft G F 316 kN 391 kN 316 kN Bucket digging force (SAE) 32200 kgf / 70, 990 lb 39900 kgf / 87, 960 lb 32200 kgf / 70, 990 lb Arm crowd force (SAE) Bucket digging force (ISO) Arm crowd force (ISO) 285 kN 331 kN 285 kN 29100 kgf / 64, 150 lb 33800 kgf / 74, 520 lb 29100 kgf / 64, 150 lb 363 kN 431 kN 363 kN 37000 kgf / 81, 570 lb 43900 kgf / 96, 780 lb 37000 kgf / 81, 570 lb 298 kN 341 kN 298 kN 30400 kgf / 67, 020 lb 34800 kgf / 76, 720 lb 30400 kgf / 67, 020 lb Shoes 610 mm 24" 710 mm 28" SWING SYSTEM Driven method . Planetary gear Swing circle lubrication . [. . . ]