12.1 Air System and Brakes – 12 Common Pneumatics
Maintenance Manual Ottawa T2 4x2
Desiccant expelled through purge
valve
Air dryer vibration
Inspect. Repair or replace as
needed.
Defective desiccant cartridge
Inspect. Repair or replace as
needed.
Defective compressor piston rings
Inspect supply air. If oil is present,
repair or replace compressor as
needed. Refer to Medium Duty
Truck Unit Repair Manual.
Defective electrical circuitry
Inspect. Repair or replace as
needed.
Low air pressure warning
Half of dual system failed
Inspect gauges. Repair or replace
failed components as needed.
System failed
Inspect for leaks. Repair or replace
failed components as needed.
Defective governor
Test. Adjust or replace as needed.
Defective compressor
Inspect. Repair or replace as
needed.
Excessive air system leakage
Inspect system connections and
valves. Repair or replace as
needed.
Pressure drops quickly: engine
stopped, brakes applied
Treadle valve leak
Inspect. Repair or replace as
needed.
Brake chamber leak
Inspect. Repair or replace as
needed.
Lines or fittings leak
Inspect. Repair or replace as
needed.
Pressure drops: engine stopped,
brakes applied
Treadle valve leak
Inspect. Repair or replace as
needed.
Lines or fittings leak
Inspect. Repair or replace as
needed.
Spring chamber leak
Inspect. Repair or replace as
needed.
Observation
Cause
Action
Summary of Contents for Ottawa t2
Page 1: ......
Page 47: ...38 0 8 Electrical Instruments 0 Machine Complete Maintenance Manual Ottawa T2 4x2 ...
Page 53: ...44 1 11 Start Stop 1 Engine Maintenance Manual Ottawa T2 4x2 ...
Page 55: ...46 2 Transmission Maintenance Manual Ottawa T2 4x2 ...
Page 57: ...48 3 Driveline Axle Maintenance Manual Ottawa T2 4x2 ...
Page 73: ...64 5 4 Diagnosis Hydrostatic Steering 5 Steering Maintenance Manual Ottawa T2 4x2 ...
Page 81: ...72 7 11 Diagnosis Boom 7 Load Handling Maintenance Manual Ottawa T2 4x2 ...
Page 83: ...74 8 Control System Maintenance Manual Ottawa T2 4x2 ...
Page 145: ...136 11 2 Safety 11 Common Electric Maintenance Manual Ottawa T2 4x2 Chassis Power Board ...
Page 153: ...144 12 5 Air Dryer 12 Common Pneumatics Maintenance Manual Ottawa T2 4x2 ...
Page 155: ...146 D Error Codes Maintenance Manual Ottawa T2 4x2 ...
Page 261: ...252 0 4 Fastener Torque Values F Technical Data Maintenance Manual Ottawa T2 4x2 ...