User manual ZENOAH KOMATSU HD405-7 BROCHURE
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Manual abstract: user guide ZENOAH KOMATSU HD405-7BROCHURE
Detailed instructions for use are in the User's Guide.
[. . . ] The system can store up to 2900 working cycles.
Komatsu develops and produces all major components, such as engines, electronics and hydraulic components, in house. With this "Komatsu Technology, " and adding customer feedback, Komatsu is achieving greater advancements in technology. To achieve both high levels of productivity and economical performance, Komatsu has developed the main components with a total control system. [. . . ] It enables an ideal change in clutch modulation pressure and torque cut-off timing in response to travel conditions. This system and newly added "skip-shift" function ensure smooth shifting and responsive acceleration.
Built-in ROPS/FOPS
These structures conform to ISO3471 and SAE J1040 ROPS standards, and ISO 3449 and SAE J231 FOPS standards.
Ergonomically designed cab
The ergonomically designed operator's compartment makes it very easy and comfortable for the operator to use all the controls. The result is more confident operation and greater productivity.
"Skip-shift" function
Optimum travel speed automatically selected in response to angle of ascent. Shift down Skip-shift F4 F1 Reduced frequency of downshift Shift hold F4 and smoother F4 operation are provided.
Conventional
Shift down Shift down Shift down
Viscous cab mounts
Viscous mounts reduce the noise transmitted to the cab and achieve a quiet 77 dB(A) noise level.
Easy-to-see instrument panel
The instrument panel makes it easy to monitor critical machine functions. In addition, a caution light warns the operator of any problems that may occur. This makes the machine very friendly and easy to service.
Electric body dump control lever
The low effort lever makes dumping easy. A positioning sensor is installed for dump body control which significantly reduces the shock made by the lowering of the dump body.
F2
F1
F3
F2
F4 F4
F3
Ideal driving position settings
The 5-way adjustable operator seat and the tilt-telescopic steering column create an optimum driving posture, for increased driving comfort and more control over the machine's operations. The suspension seat dampens vibrations transmitted from the machine and reduces operator fatigue as well as holding the operator securely to assure confident operation. ASR automatically prevents the rear tires on either side from slipping on soft ground for optimal traction.
Wet multi-disc brakes and fully hydraulic braking systems mean lower maintenance costs and higher reliability. Wet disc brakes are fully sealed to keep contaminants out, reducing wear and maintenance. Brakes require no adjustments for wear, meaning even lower maintenance. Added reliability is designed into the braking system by the use of three independent hydraulic circuits providing hydraulic backup should one of the circuits fail. Fully hydraulic braking systems eliminate the air system so air bleeding is not required, and water condensation that can lead to contamination, corrosion and freezing is eliminated.
Centralized greasing points (Option)
Greasing points are centralized at three locations.
Pedal-operated secondary brake
If there should be a failure in the foot brake, the parking brake and front disc brakes are activated as pedal operated secondary brake. In addition, when hydraulic pressure drops below the rated level, the parking brake is automatically actuated.
Extended oil change intervals
In order to minimize operating costs, oil change intervals have been extended: Engine oil 500 hours Hydraulic oil 4000 hours
Reliable hydraulic system
The oil cooler is installed in the radiator lower tank, improving the reliability of the hydraulic system during sudden temperature rises. Further, in addition to the main filter, a 25micron line filter is at the entrance to the transmission control valve. This system helps to prevent secondary faults.
Lead-free radiator
In addition to compliance with emission regulations, a leadfree aluminum core is adopted for the radiator to comply with global environmental requirements.
Centralized arrangement of filters
The filters are centralized so that they can be serviced easily.
Brake cooling oil recovery tank
To protect environment, a tank is installed to recover brake cooling oil in the event of brake floating seal leakage.
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.
Nipple
Hose O-ring
Protection functions supported by electronic control
Item
Downshift inhibitor Over-run inhibitor Reverse inhibitor Forward/Reverse shift inhibitor Anti-hunting system Neutral safety
Function
Even if the driver downshifts accidentally, a speed appropriate to the current gear is automatically set, preventing over-runs.
When descending grades, if the vehicle's speed surpasses the maximum for the current gear, the rear brakes automatically operate, preventing over-runs.
The vehicle is prevented from moving backward when operating the body. This device makes it impossible to shift from forward to reverse when the vehicle's speed surpasses 4 km/hour. When running near a shift point, smooth automatic shifting takes place. [. . . ] 34400 kg 75, 840 lb Gross vehicle weight with 40 metric ton (44. 1 U. S. ton) payload. 67. 2%
F7
2. 0
1 0. 5
0 0 5
10 10
20 15
30 20
40 25 30
50 35
60 40
70
km/h MPH
TRAVEL SPEED
BRAKE PERFORMANCE
To determine brake performance: These curves are provided to establish the maximum speed and gearshift position for safer descents on roads with a given distance. From this weight-resistance point, read horizontally to the curve with the highest obtainable speed range, then down to maximum descent speed the brakes can safely handle without exceeding cooling capacity.
Grade distance: Continuous descent
GROSS WEIGHT
0 0 10 50 20 30 40
EMPTY
Grade distance: 450 m (1480 ft) (, )
GROSS WEIGHT
0 0 10 50 20 30 40
EMPTY
100 50 60
150 70 80
LOADED
200 90
x10 lb
3 100 x10 kg
3
TOTAL RESISTANCE (GRADE + ROLLING) (%)
200 x103 lb
3 100 x10 kg
100 50 60
150 70 80
LOADED
STEERING SYSTEM Type . [. . . ]
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