OPERATOR'S MANUAL

Brake System Preventive Maintenance
– 194 – Y53-6027
Medium Duty (R05/09)
WARNING! Do not operate the vehicle in the
event of a malfunction in any air or hydraulic cir-
cuit. Such a malfunction may prevent the brake
system from operating properly, and could
result in an accident causing death or serious
personal injury. The vehicle should not be oper-
ated until the system is repaired and both brak-
ing circuits, including all pneumatic, hydraulic,
and mechanical components are working prop-
erly.