Main Characteristics; Running-In - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

1.3.3 MAIN CHARACTERISTICS

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.
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- Two-wheel steering (2WS)
- Four-wheel steering (4WS ROUND)
- Four-wheel steering (4WS CRAB)
4-gear mechanical gearshift and transmission with hydraulic converter; reversal controlled by a lever positioned
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under the steering wheel.
Loader control through a single servo lever ensuring also combined movements that can be modulated propor-
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tionally and continually.
Backhoe controls through mechanical levers ensuring also combined movements that can be modulated propor-
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tionally and continually. On request, the backhoe can be controlled by means of two servo levers.
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).
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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 func-
tionality will be untimely reduced.
Every new machine must be used carefully, paying special attention to the following indications:
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
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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 per-
formed together with the standard maintenance operations.
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.
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IMPORTANT
When changing the oil filters (cartridges), check their innner part to make sure that there are no depos-
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its.
If abundant deposits are observed, find out what may have caused their accumulation before starting
the machine.
The number of operation hours is indicated by the hour meter.
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INTRODUCTION
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