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Komatsu PC138US-11 User Manual

Komatsu PC138US-11
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MAINTENANCE PROCEDURE
MAINTENANCE
4-30
WENAM00111
METHOD FOR CHECKING WINDOW WASHER FLUID LEVEL, ADDING FLUID
If air is in the window washer fluid, check the fluid level in window washer tank (1).
1.
Check the fluid level in window washer tank (1).
2.
If the level is low, add window washer fluid for automobile.
Take the following precautions when filling.
Be careful not to let dust enter.
Be careful that the window washer fluid level does not
exceed the top edge of the bracket (2).
REMARK
There is an air bleeding hole on the cap of window washer
tank in order to prevent breakage caused by negative
pressure in the tank when window washer is operated. The
washer fluid may leak from the air bleeding hole according
to its volume or the vibration of the machine, however, it
does not indicate abnormality.
Mixture ratio of pure washer fluid and water
The proper mixing proportion varies with the ambient temperature. Add washer fluid diluted with water at the
following proportion.
Area, season
Mixing proportion
Freezing temperature
Normal
Washer fluid 1/3: water 2/3
-10 °C
Winter in cold district
Washer fluid 1/2: water 1/2
-20 °C
Winter in extremely cold district
Pure washer fluid
-30 °C
There are 2 types depending on the freezing temperature:-10 °C (general use) and -30 °C (cold district use),
select according to the area and season.
METHOD FOR CHECKING AND MAINTENANCE AIR CONDITIONER
SERVICE ITEM
Some maintenance items of the air conditioner are to be inspected periodically and the others are to be inspect-
ed when required. Check and maintenance the air conditioner according to the following list to use it effectively.
Check and mainte-
nance items
Content of check and maintenance
Guideline for maintenance interval
Refrigerant (gas)
Charge amount
Twice a year (spring, autumn)
Air conditioner con-
denser
Clogged fins
Every 500 hours
“METHOD FOR CHECKING AND CLEANING
RADIATOR FINS, OIL COOLER FINS, AFTER-
COOLER FINS, FUEL COOLER FINS, AND AIR
CONDITIONER CONDENSER FINS (4-53)”
Compressor
Operating condition
Every 4000 hours

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Komatsu PC138US-11 Specifications

General IconGeneral
BrandKomatsu
ModelPC138US-11
CategoryExcavators
LanguageEnglish

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