Section 05: COOLING SYSTEM
PA1564
6
3.1.2 Maintenance
The constant-torque clamps contain a
"Visual
torque check
“
feature.
When the tip of the screw
is extending ¼" (6 mm) out of the housing, the
clamp is properly installed and maintains a
leak-proof connection. Since the constant-torque
clamp automatically adjusts to keep a consistent
sealing pressure, there is no need to re-torque
hose clamps on a regular basis. During vehicle
operation and shutdown, the screw tip will adjust
according to the temperature and pressure
changes.
Checking for proper torque should
be done at room temperature.
3.2 CONSTANT-TORQUE HOSE CLAMPS ON
CHARGE AIR COOLER (CAC)
If for any reason such as an accident, hose
clamps need to be changed; install and tighten
hose clamps to 10±1 lbf-ft (dry) (Fig. 7).
FIGURE 7: CHARGE AIR COOLER HOSE CLAMPS
05134
CAUTION
The hose clamps will break if over-tighten. Do
not over-tighten, especially during cold
weather when hose has contracted.
3.2.1 Maintenance
Since the constant-torque clamp automatically
adjusts to keep a consistent sealing pressure,
there is no need to retorque hose clamps on a
regular basis. During vehicle operation and
shutdown, the screw tip will adjust according to
the temperature and pressure changes.
Checking for proper torque should be done
at room temperature.
4. THERMOSTAT OPERATION
Coolant temperature is controlled by two
blocking-type thermostats located in a housing
attached to the cylinder head, on the turbo side
of the engine (Fig. 8).
At coolant temperature below approximately
182°F -188°F (83°C-86°C), the thermostat
valves remain closed and block the flow of
coolant from the engine to the radiator. During
this period, all of the coolant in the system is
recirculated through the engine and directed
back to the suction side of the water pump via a
bypass tube. As the coolant temperature rises
above 182°F -188°F (83°C-86°C) the thermostat
valves start to open, restricting the bypass
system, and allowing a portion of the coolant to
recirculate through the radiator. When the
coolant temperature reaches approximately
202°F (95°C) thermostat valves are fully open,
the bypass system is blocked off and the coolant
is directed through the radiator.
FIGURE 8: THERMOSTAT HOUSING
(IMAGE DDC) 05117
5. COOLANT
5.1 COOLANT LEVEL VERIFICATION
Coolant level is correct when cold coolant is
visible through the surge tank sight glass
(Fig. 9). If coolant level is low, fill cooling system.
Summary of Contents for LE MIRAGE XLII BUS SHELLS
Page 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1564 1ST EDITION...
Page 12: ...Section 00 GENERAL INFORMATION 10 PA1564 FIGURE 13 METRIC US STANDARD CONVERSION TABLE 00005...
Page 13: ...Section 00 GENERAL INFORMATION PA1564 11 FIGURE 14 CONVERSION CHART 00006...
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Page 63: ...SECTION 01 ENGINE PA1564 33 FIGURE 13 POWER PLANT CRADLE INSTALLATION 01140...
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Page 229: ...FAULT CODE MANUAL Created on 00 04 25 15 30 1 FAULT CODE MANUAL B7L B7TL B12...
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Page 379: ...Section 12 BRAKE AND AIR SYSTEM PA1564 21 FIGURE 38 AIR OPERATED BRAKING SYSTEM WE...
Page 380: ...Section 12 BRAKE AND AIR SYSTEM PA1564 22 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5...
Page 387: ...Section 12 BRAKE AND AIR SYSTEM PA1564 29 FIGURE 46 ABS 6S 5M CONFIGURATION...
Page 418: ...16 BW2158 Honeywell Commercial Vehicle Systems Company 4 2001 Printed in USA...
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Page 926: ...PROCEDURE NO SAV00044 REVISION 00 Page 2 of 2 Slide out...
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Page 1086: ...Section 22 HEATING AND AIR CONDITIONING PA1564 18 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP...
Page 1118: ...Section 22 HEATING AND AIR CONDITIONING PA1564 50 FIGURE 54 HEATER LINE SHUTOFF VALVES WE...
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Page 1125: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R...
Page 1126: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT...
Page 1149: ...Compressor 62 11053 Rev B SERVICE PARTS LIST for MODEL 05G TWIN PORT COMPRESSOR 1 2 3 4 5 6 R...
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Page 1223: ...Section 26 XLII SLIDE OUT PA1564 11...
Page 1224: ...Section 26 XLII SLIDE OUT PA1564 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION...