INSTRUMENTS AND CONTROLS

40. Primary and 41. Secondary Air Pressure Gauge Indicates the air pressure the air brake The normal operating air pressure between 759 kPa psi) and 897 kPa (130 psi) both air brake pressure drops below psi 5 psi) either the warning buzzer and warning light will Determine the cause failure before Primary air pressure supplied the rear brakes and indicated the green pointer the Secondary air pressure supplied the steering axle brakes and indicated the orange pointer

42. W iper Speed/Delay/W ash Master Switch

• Depress top the rocker switch activate windshield washer

• T oggle switch top position turns wipers HIGH

• T oggle switch second position from top turns wipers LOW

• T oggle switch the center position activates intermittent Pressing the switch down slows the speed the wipers

• T oggle switch the lowest position turns wipers OFF

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Speed/Delay/W ash Master Switch Press

W iper