Mack TerraPro LEU 2010, Operator'S Handbook Manual

Page: 89 / 225

78 PRE-TRIP INSPECTION AND DAILY
MAINTENANCE
• Condition of brake hoses: check for any chafing.
• Check brake chamber mounting bolts and brackets.
• Check slack adjusters and chamber push rod travel. With brakes applied
or released, look for conspicuously different positions of the slack adjusters
for proper adjustment.
• Check spring brakes.
Step 6: Rear of Vehicle Area
Frame Area
• Frame or cross members not bent, cracked or otherwise damaged or missing.
• Check that air tubing and electrical lines are properly secured to the frame
with no damage or chafing.
Lights and Reflectors
• Tail lights, brake lights and turn signal lights: operating, clean and proper
color.
Step 7: Coupling System Area
Fifth Wheel
• Securely mounted to the frame.
• No missing or damaged parts.
• Check that trunnion and plate are properly lubricated.
Sliding Fifth Wheel
• Mechanism not worn, bent, damaged or parts missing.
• Properly lubricated.
• All locking pins present and locked in place.
• If air operated: no air leaks.
Air Tubing and Electric Lines Visible From This Point
• Should be secure from dangling.
• Both air lines and electric line should be free from damage, oil and grease.