5-42
MAINTENANCE
INSPECTING THE REFRIGERANT (GAS)
LEVEL (AC)
• Exposure of the eyes or hands to the
cooler’s refrigerant could result in
blindness or frostbite.
Never touch the refrigerant or loosen
the parts of the cooling circuit.
• Keep flames away if the refrigerant gas
is leaking.
• The high-pressure pipes of the air
conditioner can be very hot (80 to 120°C
or 176 to 248°F). Be careful not to burn
yourself.
The cooling capacity decreases if the
amount of refrigerant is insufficient.
Inspect the refrigerant level using the sight
glass (2) on the top of the receiver dryer (1).
EVERY 250 HOURS
1. Open the engine hood.
2. Inspect the places for the conditions
below.
Places for inspection
Conditions
Cab door
Fully open
Temperature control
dial
Set fully to the COOL
side
Fan speed
High
Ventilation/
Circulation select
lever
Circulation
Engine speed
Maximum speed
Air conditioner
switch
ON
3. Inspect the refrigerant by watching the
flow of air bubbles through the sight glass
(2).
Refer to “Check list for refrigerant volume”
on page 5-43.
4. Check the temperature of the
compressor’s high pressure pipe (3) and
low pressure pipe (4).
Refer to “Check list for refrigerant volume”
on page 5-43.
Summary of Contents for TB260
Page 1: ......
Page 11: ...1 1 SAFETY...
Page 46: ...1 36 SAFETY SAFETY SIGNS DECALS Applicable machine models 126100003 or later...
Page 47: ...1 37 SAFETY SAFETY SIGNS DECALS...
Page 48: ...1 38 SAFETY SAFETY SIGNS DECALS...
Page 49: ...1 39 SAFETY SAFETY SIGNS DECALS...
Page 50: ...1 40...
Page 51: ...2 1 CONTROLS...
Page 111: ...2 61 MEMO...
Page 121: ...2 71 MEMO...
Page 135: ...3 1 OPERATION...
Page 163: ...4 1 TRANSPORT...
Page 167: ...4 5 TRANSPORT HOISTING THE MACHINE...
Page 169: ...5 1 MAINTENANCE...
Page 236: ...5 68...
Page 237: ...6 1 TROUBLESHOOTING...
Page 245: ...6 9 MEMO...
Page 264: ...6 28...
Page 265: ...7 1 SPECIFICATIONS...
Page 268: ...7 4 SPECIFICATIONS MACHINE DIMENSIONS MACHINE DIMENSIONS...
Page 270: ...7 6 SPECIFICATIONS OPERATING RANGES OPERATING RANGES...
Page 272: ...7 8 MEMO...
Page 286: ...7 22...
Page 287: ...8 1 OPTIONS OPTIONS...