5-50
MAINTENANCE
Check list for refrigerant volume
Air conditioner
Normal
Abnormal
High/low
pressure pipe
temperature
High pressure
pipe is hot (80 to
120°C or 176 to
248°F), low
pressure pipe is
cold (8 to 15°C
or 46 to 59°F).
Clear difference
in temperature
between the
pipes.
High pressure
pipe is warm,
low pressure
pipe is slightly
cool. No
significant
difference in
temperature
between the
pipes.
Little difference
in temperature
between the
high-pressure
pipe and the
low-pressure
pipe.
High pressure
pipe is hot, low
pressure pipe is
slightly cool. A
significant
difference in
temperature
between the
pipes.
Pipe
connection
Normal
Some places are
dirty with oil.
Some places are
extremely dirty
with oil.
Normal
Sight glass
Almost
transparent with
some bubbles.
Fully transparent
when the engine
speed is
increased or
decreased.
Flow of bubbles
can be seen
constantly.
Sometimes
transparent or
white with
bubbles.
Mist-like flow is
faintly visible.
No bubbles is
visible, even
when the fan is
set to High and
the engine is
idling.
Refrigerant
level
Proper level
Refrigerant may
be leaking.
Refrigerant has
leaked; little is left.
Refrigerant level
too high
EVERY 250 HOURS
If the air conditioner is not working
If the air conditioner does not work well, set the fan switch to OFF and contact your sales or
service dealer for inspection and/or repairs.
IMPORTANT: Continued use of the air conditioner when it is not working properly will
damage its various parts.
IMPORTANT: Using the air conditioner when there is no refrigerant will damage the
compressor.
IMPORTANT: Always consult your sales or service dealer for replacing the refrigerant.
Be sure to use R134a refrigerant (740 to 820 g or 1.72 to 1.81 lb.).
AG7G064
AG7G065
AG7G066
AG7G067
Summary of Contents for TB295W
Page 1: ......
Page 11: ...1 1 SAFETY...
Page 50: ...1 40 SAFETY SAFETY SIGNS DECALS...
Page 51: ...1 41 SAFETY SAFETY SIGNS DECALS...
Page 52: ...1 42 SAFETY SAFETY SIGNS DECALS...
Page 53: ...2 1 CONTROLS...
Page 77: ...2 25 MEMO...
Page 126: ...2 74...
Page 127: ...3 1 OPERATION...
Page 155: ...3 29 MEMO...
Page 158: ...3 32...
Page 159: ...4 1 TRANSPORT...
Page 163: ...4 5 TRANSPORT Hoisting posture HOISTING THE MACHINE...
Page 166: ...4 8...
Page 167: ...5 1 MAINTENANCE...
Page 217: ...5 51 MEMO...
Page 229: ...5 63 MEMO...
Page 235: ...5 69 MEMO...
Page 246: ...5 80...
Page 247: ...6 1 TROUBLESHOOTING...
Page 255: ...6 9 MEMO...
Page 271: ...7 1 SPECIFICATIONS...
Page 278: ...7 8 SPECIFICATIONS OPERATING RANGES OPERATING RANGES...
Page 280: ...7 10 MEMO...
Page 282: ...7 12 SPECIFICATIONS 2 Piece boom LIFTING CAPACITIES...
Page 283: ...7 13 SPECIFICATIONS 2 Piece boom LIFTING CAPACITIES...
Page 284: ...7 14 SPECIFICATIONS Mono boom LIFTING CAPACITIES...
Page 285: ...7 15 SPECIFICATIONS Mono boom LIFTING CAPACITIES...
Page 286: ...7 16...
Page 287: ...8 1 OPTIONS...
Page 303: ...8 17...