User manual KOMATSU WA320-5 BROCHURE

[. . . ] Under deceleration, the HST system acts as a dynamic brake on the mechanical drive system. The dynamic brake can hold the loader in position on most workable slopes. This can be an advantage in stockpiling and ramp loading. As the machine moves and gains ground speed, the torque demand decreases and the low speed motor is effectively removed from the drive system by a clutch. [. . . ] The parking brake is mechanically controlled by a lever in the cab. WHEEL LOADER Flat Face-to-Face O-Ring Seals Flat face-to-face O-ring seals are used to securely seal all hydraulic hose connections and to prevent oil leakage. WA320-5 INCREASED RELIABILITY AND SERVICEABILITY Main Monitor - EMMS (Equipment Management Monitoring System) Komatsu's new main monitor keeps the operator informed of all machine functions at a glance. The monitor is located behind the steering wheel and displays various different machine functions including fluid/filter change intervals and troubleshooting memory display functions. The main gauges are analog type for easy viewing and other functions utilize light symbols or LCD readouts. nipple Full Side-Opening Gull-Wing Engine Doors Ground level engine service and daily service checks are made easy with the gas spring assisted full side opening gull-wing doors. hose O-ring Cylinder Buffer Rings Buffer rings are installed to the head-side of the hydraulic cylinders buffer rings Parking Brake Service Brakes to lower the load on the rod seals, prolonging cylinder life by 30% and maximizing dust seal rod packing Extended Service Interval Swing-Out Radiator The new Komatsu cooling system is isolated from the engine to provide more efficient cooling and low noise. The swing-out hydraulic fan allows the operator to quickly clean out the cooling system. The radiator, air-to-air cooler and oil cooler are mounted side-by-side for more efficient cooling and easy cleaning. A fully-opening, gas spring assisted rear grill gives the operator excellent access to the swing-out fan and coolers. Extended engine oil service interval: 250 H 500 H overall reliability. Cathion Electrodeposition Primer Paint/Powder Coating Final Paint Cathion electrodeposition paint is applied as a primer paint and powder coating is applied as a topcoat to the exterior metal sheet parts. This process results in a durable rust-free machine, even in the most severe environments. Some external parts are made of plastic to provide long life and high impact resistance. Extended drive shaft greasing interval: 1, 000 H 4, 000 H High-rigidity Frames The front and rear frames along with the loader linkage have high rigidity to withstand repeated twisting and bending loads to the loader body and linkage. Both the upper and lower center pivot bearings use tapered roller bearings for increased durability. The structure is similar to those of large sized loaders and the reinforced loader linkage ensures high Sealed DT Connectors Main harnesses and controller connectors are equipped with sealed DT connectors providing high reliability and dust and corrosion resistance. Overrun Prevention System When the machine descends a slope of six degrees or less, maximum travel speed is automatically restricted to approximately 42 km/h 26 MPH, for safety protection against damage of power train components and brakes by sensing the travel speed and controlling the discharge amount of the HST pump and motor. When the machine descends a steep slope and the travel speed reaches 40 km/h 25 MPH, the caution lamp lights up to inform the operator to reduce the travel speed. Note: When the machine descends a steep slope, the use of the service brake is necessary to limit travel speed. strength. Komatsu Components Komatsu manufactures the engine, transfer case, differentials and electric parts on this wheel loader. Komatsu loaders are manufactured with an integrated production system under a strict quality control system. Front axle Transfer Rear axle Komatsu Components Engine 6 7 WA320-5 W HEEL L OADER Tiltable Steering Column The operator can tilt the steering column to allow maximum comfort and control. The two-spoke steering wheel allows maximum visibility of the monitor panel and forward work environment. WHEEL LOADER Comforts of Home The large cab allows room for a large lunch box holder, a variety of cup holders and a hot/cold box storage area. Optional air conditioning and the optional AM/FM stereo cassette system create a comfortable and controlled work environment. WA320-5 OPERATOR COMFORT New Cab Layout Komatsu's new cab layout provides the operator with a roomy, quiet and efficient work environment. The low noise level inside the cab leads the industry at 70 dB(A) and loader controls are ergonomically designed to reduce operator fatigue and increase productivity. Easy-to-operate Loader Control lever A new lever using PPC (Proportional Pressure Control) allows the operator to easily operate the work equipment, to reduce operator fatigue and to increase controllability. The adjustable wrist rest provides the operator with a variety of comfortable operating positions. Two Door Walk-Through Cab Entry and exit into the new Komatsu cab starts with sloped staircase type steps and large diameter handrails for added safety and comfort. The large cab doors are rear-hinged to open 130 degrees offering easy entry/exit and will not hamper visibility when operating the machine with the doors latched open. A wide pillar-less flat glass provides for excellent visibility. The wiper arm covers a large area to provide great visibility even on rainy days. Electrically Controlled Directional Lever The operator can change direction with a touch of his fingers without removing his hand from the steering wheel. [. . . ] gal Digging Depth Breakout Force Operating Weight BRAKES Service brakes: Hydraulically-actuated, wet disc brakes actuate on four wheels. Parking brake: Wet, multi-disc brake on transfer output shaft. Emergency brake: Parking brake is commonly used. * Bucket at carry, outside corner of bucket. All dimensions, weights, and performance values based on SAE J732c and J742b standards. [. . . ]