Komatsu Utility Avance WB91R-2, Operation & Maintenance Manual

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INTRODUCTION
5
1.3.3 MAIN CHARACTERISTICS
1.3.4 RUNNING-IN
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Simple and easy operation.
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Servo-assisted steering with priority hydraulic system.
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4-gear mechanical gearshift and transmission with hydraulic converter; reversal controlled by a lever positioned
under the steering wheel.
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Loader control through a single lever ensuring also combined movements that can be modulated proportionally
and continually.
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Backhoe controls with two 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.
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 excessive work load at the beginning of operation, its potential yield and its func-
tionality will be shortly and 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 opera-
tion.
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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, 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 oil in the final reduction gears (front and rear axle).
4 - Check and adjust the engine valve clearance.
5 - 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 besides 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 depos-
its.
If considerable deposits are observed, find out what may have caused them before starting the ma-
chine.
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The number of operation hours is indicated by the hour meter.