MAINTENANCE
MAINTENANCE PROCEDURE
4-25
CLEAN INSIDE OF COOLING SYSTEM
4
WARNING
q
Immediately after the engine is stopped, the coolant is at
a high temperature and the radiator is under high internal
pressure. If the cap is removed to drain the coolant in
this condition, there is a hazard of burns. Wait for the
temperature to go down, then turn the cap slowly to
release the pressure before removing it.
q
Cleaning is carried out with the engine running. When
standing up or leaving the operator's seat, set the lock
lever to LOCK position (L).
q
For details of starting the engine, see "BEFORE START-
ING ENGINE (3-73)" and "STARTING ENGINE (3-89)" in
the OPERATION section.
q
There is danger of touching the fan if the undercover is
left removed.
Never enter behind the machine when the engine is run-
ning.
Clean the inside of the cooling system, change the coolant and replace the corrosion resistor according to the
table below.
Stop the machine on level ground when cleaning or changing the coolant.
Use a permanent type of antifreeze.
If, for some reason, it is impossible to use permanent type antifreeze, use an antifreeze containing ethylene glycol.
The ratio of antifreeze to water depends on the ambient temperature, but to obtain the corrosion resistance effect,
a minimum ratio of 30% by volume is necessary.
When deciding the ratio of antifreeze to water, check the lowest temperature in the past, and decide from the mix-
ing rate table given below.
It is actually better to estimate a temperature about 10
°
C (18
°
F) lower when deciding the mixing rate.
Mixing rate of water and antifreeze
Kind of coolant
Cleaning inside of cooling system
and changing coolant
Replacing corrosion resistor
Permanent type antifreeze
(All season type)
Every year (autumn) or
every 2000 hours,
whichever comes first
Every 1000 hours and when
cleaning the inside of the
cooling system and
when changing coolant
Non permanent type antifreeze con-
taining ethylene glycol
(winter, one season type)
Every 6 months (spring, autume)
(Drain antifreeze in spring,
add antifreeze in autumn)
When no using antifreeze
Every 6 months or
every 1000 hours,
whichever come first
Min. atmospheric
temperature
°
C
-10
-15
-20
-25
-30
-35
-40
°
F
14
5
-4
-13
-22
-31
-40
Amount of antifreeze
liter
16.8
20.2
23.0
25.8
28.0
30.2
32.5
US gal
4.44
5.34
6.08
6.82
7.40
7.98
8.59
Amount of water
liter
39.2
35.8
33.0
30.2
28.0
25.8
23.5
US gal
10.36
9.46
8.72
7.98
7.40
6.82
6.21
Volume ratio (%)
30
36
41
46
50
54
58
Summary of Contents for PC600-7
Page 2: ...1 1 FOREWORD 11 ...
Page 4: ...FOREWORD FOREWORD 1 3 ...
Page 5: ...FOREWORD FOREWORD 1 4 ...
Page 18: ...2 1 SAFETY 12 ...
Page 22: ...SAFETY SAFETY LABELS 2 5 LOCATION OF SAFETY LABELS 2 ...
Page 28: ...SAFETY SAFETY LABELS 2 11 19 Jump start prohibited 09842 A0481 ...
Page 59: ...3 1 OPERATION 13 ...
Page 168: ...MACHINE OPERATIONS AND CONTROLS OPERATION 3 110 Boom operation Bucket operation ...
Page 211: ...4 1 MAINTENANCE 4 ...
Page 277: ...MAINTENANCE MAINTENANCE PROCEDURE 4 67 q Center frame A Important check points q Boom ...
Page 288: ...5 1 SPECIFICATIONS 15 ...
Page 291: ...6 1 ATTACHMENTS AND OPTIONS 16 ...
Page 299: ......