Method For Checking Window Washer Fluid Level, Adding Fluid; Method For Checking And Maintenance Air Conditioner - Komatsu PC700LC-11 Operation & Maintenance Manual

MAINTENANCE

METHOD FOR CHECKING WINDOW WASHER FLUID LEVEL, ADDING FLUID

1.
If air is in the window washer fluid, check the fluid level in
window washer tank (1).
2.
If the level is low, add window washer fluid for automobile.
Be careful not to let dirt or dust get in when adding fluid.
Mixture ratio of pure washer fluid and water
The proper mixing proportion varies with the ambient temperature. Add the washer fluid diluted with water at the
following proportion.
Area, season
Normal
Winter in cold district
Winter in extremely cold district Pure washer fluid
There are 2 types of –10 °C (for general use) and –30 °C (for cold district). Use them properly according to the
area and season.

METHOD FOR CHECKING AND MAINTENANCE AIR CONDITIONER

Check, maintenance items
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
Refrigerant (gas)
Air conditioner con-
denser
Compressor
V-belt
Blower motor, fan
Control mechanism
Piping mounts
Even during the off-season, operate the air conditioner for 3 to 5 minutes once a month to maintain the oil film at
all parts of the compressor.
Mixing proportion
Washer fluid 1/3: water 2/3 –10 °C
Washer fluid 1/2: water 1/2 –20 °C
Content of check and mainte-
nance
Charge amount
Clogged fins
Operating condition
Damage
Operating condition (Check for un-
usual noise)
Operating condition (Check
function is normal)
Mounting condition, looseness at
tightening or connecting portions,
leakage of gas, damage
Freezing temperature
–30 °C
Guideline for maintenance interval
Twice a year (spring, autumn)
Every 500 hours
"METHOD FOR CHECKING AND CLEANING
RADIATOR FINS, OIL COOLER FINS, AFTER-
COOLER FINS, FUEL COOLER FINS, AND AIR
CONDITIONER CONDENSER FINS"
Every 4000 hours
Every 1000 hours
"METHOD FOR CHECKING AND REPLACING
ALTERNATOR AND AIR CONDITIONER COM-
PRESSOR DRIVE BELT"
When required
that When required
When required
MAINTENANCE PROCEDURE
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