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INSTRUMENTS AND CONTROLS 75
30. Fasten Seat Belt Warning Indicator (If Equipped) (Red)
31. High Exhaust System Temperature (HEST) Icon
— when (HEST)
illuminates do not park or operate the vehicle near people, or any flammable
materials, vapors, or structures.
32. Fuel Gauge
– Registers the fuel level in the supply tank(s).
33. Speedometer
— Indicates road speed in miles and/or kilometers per hour.
34. Tachometer
– Indicates engine speed in revolutions per minute (RPM).
Tachometer readings should be used as a guide for shifting, as well as to
prevent engine damage due to overspeed.
36. Air Application Gauge (If Equipped)
– Indicates the air pressure being
delivered to the service brake chambers in the tractor (and trailer, if equipped);
OR
Air Suspension Gauge (If Equipped)
– Indicates the air pressure being
delivered to the air suspension system 689 kPa (100 psi range).
37. Hand-Control Brake Lever
– Pull down to activate the trailer brakes, or
the rear axle brakes in the case of a platform truck.
WARNING
The hand-control brake system must NOT be used for parking. Do NOT use
to apply service brakes while vehicle is in motion. Do not leave the vehicle
while hand-control brake is applied.
38. Front Rear Axle and 39. Rear Rear Axle Oil Temperature Gauges (If
Equipped)
– Indicate rear axle oil temperature.
CAUTION
The maximum safe oil temperature for MACK rear axles is 121°C (250°F).
Continued with oil above this temperature will cause rapid deterioration of the oil’s
lubricating properties and is NOT recommended. Consult the vendor manual for
non-MACK components.
Summary of Contents for Granite GU Series
Page 2: ......
Page 11: ......
Page 44: ...SAFETY INFORMATION 33 Advisory Label Locations On Vehicle Labels Found on Chassis C0029831 ...
Page 45: ...34 SAFETY INFORMATION C0028958 ...
Page 46: ...SAFETY INFORMATION 35 C0028959 ...
Page 47: ...36 SAFETY INFORMATION C0029013 1 Right Side Frame Rail 2 Hood Prop ...
Page 48: ...SAFETY INFORMATION 37 C0029014 ...
Page 49: ...38 SAFETY INFORMATION Labels Found on Driver Side Sun Visor C0029832 ...
Page 50: ...SAFETY INFORMATION 39 C0029016 ...
Page 58: ...SAFETY INFORMATION 47 C0029833 ...
Page 60: ...SAFETY INFORMATION 49 C0029834 ...
Page 62: ...SAFETY INFORMATION 51 C0029835 ...
Page 72: ...INSTRUMENTS AND CONTROLS 61 Panel B W3056238 ...
Page 81: ...70 INSTRUMENTS AND CONTROLS C0029141 ...
Page 82: ...INSTRUMENTS AND CONTROLS 71 Diagnostics W3036575 W3036576 W3036583 ...
Page 84: ...INSTRUMENTS AND CONTROLS 73 C0029144 ...
Page 113: ...102 INSTRUMENTS AND CONTROLS C0029240 C0029241 ...
Page 235: ...224 OPERATION C0029351 ...
Page 241: ...230 OPERATION C0029352 ...
Page 284: ...MAINTENANCE AND LUBRICATION 273 C0029851 C0029852 1 Towhook Access ...
Page 305: ...294 MAINTENANCE AND LUBRICATION C0029434 1 Front 2 Back ...
Page 317: ......