Mack TerraPro LEU 2010, Operator'S Handbook Manual

Page: 163 / 225

152 OPERATION
CAUTION
Do NOT (under any circumstances) engage or disengage the lockout while the
drive wheels are actually slipping or spinning; clashing between the lockout sliding
clutch and the outer cam may result.
LIFTABLE AXLES
Liftable (tag and pusher) axles are used to distribute weight evenly across
the chassis so maximum payload can be accommodated with various state
weight regulations.
CAUTION
Do NOT overload the chassis. Observe the Gross Vehicle Weight rating found on
the Safety Certification Label.
WARNING
Do NOT use the tag or pusher axles when the vehicle is empty.
CAUTION
Do NOT lower the tag or pusher axles if the vehicle is moving at speeds above 8
kph (5 mph).
Setting Axle Air Pressure — Tag and pusher axle load is regulated by air
pressure. Proper air pressure adjustment is important for maintaining proper
steering control and avoiding axle overload.