Komatsu Utility WB97S-5, Operation & Maintenance Manual

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INTRODUCTION
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1.3.3 MAIN CHARACTERISTICS
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Simple and easy operation.
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Servo-assisted steering with priority hydraulic system.
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Three steering modes selected by means of microswitches in pairs.
- Two-wheel steering (2WS)
- Four-wheel steering (4WS ROUND)
- Four-wheel steering (4WS CRAB)
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Gearshift with electronic gear selection through solenoid-operated actuators and hydraulic converter; reverse
gear and speed change with controls on a single lever.
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Loader control through a single servo lever ensuring also combined movements that can be modulated
proportionally and continually.
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Backhoe controls with two servo levers ensuring also combined movements that can be modulated
proportionally and continually.
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Complete series of instruments visible from the two operating positions (loader or backhoe).
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Separate accelerator controls for the two operating positions.
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Foot brake control.
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Easy maintenance with simplified intervals.
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Automatic engagement and disengagement of the differential locking on both axles (front and rear).
1.3.4 RUNNING-IN
Every machine is scrupulously adjusted and tested before delivery.
A new machine, however, must be used carefully for the first 100 hours, in order to ensure proper running-in of the
various components.
If the machine is subjected to an excessive work load at the beginning of its service life, its productivity and
functionality will be untimely reduced.
Every new machine must be used carefully, paying special attention to the following indications:
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After the start, let the engine idle for 5 minutes, in such a way as to warm it up gradually before actual operation.
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Avoid operating the machine with the limit loads allowed or at high speed.
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Avoid abrupt starts or accelerations, useless sudden decelerations and abrupt reversals.
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After the first 250 hours of use, carry out the following operations, in addition to those to be performed every 250
hours:
1 - Change the hydraulic transmission oil and filter.
2 - Change the differential unit oil (front and rear axle).
3 - Change the final reduction gear oil (front and rear axle).
4 - Change the hydraulic circuit oil filter.
SYNTHETIC BIODEGRADABLE OIL TYPE HEES
On machines in which the synthetic biodegradable oil type HEES is used, the following operations are to be
performed together with the standard maintenance operations.
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After the first 50 hours of operation, change the hydraulic circuit drain filter.
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After the first 500 hours of operation, change the hydraulic circuit oil.
IMPORTANT
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When changing the oil filters (cartridges), check their innner part to make sure that there are no
deposits.
If abundant deposits are observed, find out what may have caused their accumulation before starting
the machine.
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The number of operation hours is indicated by the hour meter.
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