![background image](http://html1.mh-extra.com/html/mack/chm-2010/chm-2010_operators-handbook-manual_686196062.webp)
54 INSTRUMENTS AND CONTROLS
38. Secondary Air Pressure Gauge
– Indicates the air pressure in the secondary
air brake system. Secondary air pressure is supplied to the steering axle brakes.The
normal operating air pressure is between 759 kPa (110 psi) and 897 kPa (130 psi).
If pressure drops below 517 kPa (75 psi) ±34 (± 5 psi), the warning buzzer and
warning light will go on. Determine the cause of failure before proceeding.
39. Primary Air Pressure Gauge
– Indicates the air pressure in the Primary air
brake system. Primary air pressure is supplied to the rear brakes. The normal
operating air pressure is between 759 kPa (110 psi) and 897 kPa (130 psi). If
pressure drops below 517 kPa (75 psi) ±34 (± 5 psi), the warning buzzer and
warning light will go on. Determine the cause of failure before proceeding.
41. 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.
42. Optional Switch
– Refer to “Function of Optional Switches”, page 58
43. Optional Switch
– Refer to “Function of Optional Switches”, page 58
44. Optional Switch
– Refer to “Function of Optional Switches”, page 58.
45. Optional Switch
– Refer to “Function of Optional Switches”, page 58.
46. Heated Mirror Defrost Switch
– Defrost the mirrors
47. Engine Brake Switch
48. Resume/Set Switch
– This is a V-MAC® switch; refer to the
V-MAC® IV
Vehicle Management and Control with Co-Pilot® Display Operator’s Guide
for
more information.
49. CB Radio (If Equipped) (Cummins)
49.
m
DRIVE Automatic Transmission Selector (If Equipped)
– See your
m
DRIVE Transmission Operator’s Manual supplied with this vehicle.
50. Air Filter Restriction Indicator (If Equipped)
– Indicates that the element
needs servicing or replacement. When the red flag locks into position, service as
soon as possible to prevent engine damage; then reset the indicator after the filter
change. Check the air filter restriction indicator daily.
51. Accessory Power Outlet
– See instructions under Accessory Power Outlets
listed in the Instrument and Controls Section of this manual.
Summary of Contents for CHM 2010
Page 2: ......
Page 8: ......
Page 25: ...SAFETY INFORMATION 17 Advisory Label Locations On Vehicle Labels Found on Chassis C0032631...
Page 26: ...18 SAFETY INFORMATION W8061742...
Page 27: ...SAFETY INFORMATION 19 C0032633...
Page 28: ...20 SAFETY INFORMATION W8061397...
Page 29: ...SAFETY INFORMATION 21 Labels Found on Driver Side Sun Visor W8061402...
Page 35: ...SAFETY INFORMATION 27 C0032643...
Page 37: ...SAFETY INFORMATION 29 C0032645...
Page 47: ...INSTRUMENTS AND CONTROLS 39 INSTRUMENT PANEL GAUGE LAYOUT C0032654...
Page 76: ...68 INSTRUMENTS AND CONTROLS C0032684...
Page 107: ...OPERATION 99 W4059732 Control Switch W4059733 Mode Switch...
Page 160: ...152 OPERATION C0032897...
Page 166: ...158 OPERATION C0032898...
Page 192: ...184 Mack Emissions Solution W8056653...
Page 207: ...MAINTENANCE AND LUBRICATION 199 C0032899 C0032900 1 Towhook Access...
Page 218: ...210 MAINTENANCE AND LUBRICATION ELECTRICAL Circuit Breaker and Relay Panels C0032908...
Page 232: ......