5-42
MAINTENANCE
inSpecting the refrigerant (gaS)
level (ac)
Warning
• 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 drier (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
switch
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.
<TB285>
<TB290>
4. Check the temperature of the
compressor’s high pressure pipe (1) and
low pressure pipe (2).
Refer to “Check list for refrigerant volume”
on page 5-43.
Summary of Contents for TB285
Page 1: ......
Page 10: ...0 8...
Page 11: ...1 1 Safety...
Page 44: ...1 34 Safety Safety signs decals...
Page 45: ...1 35 Safety Safety signs decals...
Page 46: ...1 36 Safety Safety signs decals...
Page 47: ...1 37 Safety Safety signs decals...
Page 48: ...1 38...
Page 49: ...2 1 Controls...
Page 103: ...3 1 Operation...
Page 131: ...4 1 Transport...
Page 135: ...4 5 Transport Hoisting the machine...
Page 137: ...5 1 Maintenance...
Page 165: ...5 29 MEMO...
Page 193: ...5 57 Memo...
Page 205: ...6 1 Troubleshooting...
Page 213: ...6 9 Memo...
Page 226: ...6 22...
Page 227: ...7 1 Specifications...
Page 230: ...7 4 Specifications Machine dimensions Mono boom Machine dimensions...
Page 232: ...7 6 Specifications Machine dimensions 2 Piece boom...
Page 234: ...7 8 Specifications Operating ranges Mono boom Operating ranges...
Page 236: ...7 10 Specifications Operating ranges 2 Piece boom...
Page 238: ...7 12 Memo...
Page 240: ...7 14 Specifications Standard arm TB285 Lifting Capacities...
Page 241: ...7 15 Specifications Lifting Capacities Standard arm TB285...
Page 242: ...7 16 Specifications Middle arm TB285 Lifting Capacities...
Page 243: ...7 17 Specifications Middle arm TB285 Lifting Capacities...
Page 244: ...7 18 Specifications Long arm TB285 Lifting Capacities...
Page 245: ...7 19 Specifications Long arm TB285 Lifting Capacities...
Page 246: ...7 20 Specifications Standard arm TB290 Lifting Capacities...
Page 247: ...7 21 Specifications Lifting Capacities Standard arm TB290...
Page 248: ...7 22 Specifications Middle arm TB290 Lifting Capacities...
Page 249: ...7 23 Specifications Middle arm TB290 Lifting Capacities...
Page 250: ...7 24 Specifications Long arm TB290 Lifting Capacities...
Page 251: ...7 25 Specifications Long arm TB290 Lifting Capacities...
Page 252: ...7 26 Specifications Lifting Capacities 2 Piece boom TB285 Equipped with Extra weight...
Page 253: ...7 27 Specifications Lifting Capacities 2 Piece boom TB285 Equipped with Extra weight...
Page 254: ...7 28 Specifications Lifting Capacities 2 Piece boom TB290 Equipped with Extra weight...
Page 255: ...7 29 Specifications Lifting Capacities 2 Piece boom TB290 Equipped with Extra weight...
Page 256: ...7 30...
Page 257: ...8 1 Options...