Mack M359 - Fifth Wheel or Trailer Hitch; Hook-Up Preparation; Hooking up to Trailer; Sliding Fifth Wheel

MAINTENANCE, LUBRICATION AND SERVICE
PRE-TRIP INSPECTION QUICK LIST
• Check gauges and tell-tale light
function. See the Instruments
and Controls section.
• Check function of low air
warning.
• Check clutch function. If
equipped, check for clutch brake
function.
• Check windshield wipers and
washers and horns, including
back-up alarm, if equipped.
• Clean inside windshield, door
windows and instruments. Clean
mirrors.
• Check temperature control and
defroster. If equipped, check
mirror heater.
• Check condition of warning
triangles, re extinguisher and
ares.
• Adjust the seat. Check mirror
adjustment.
• Check safety belts for function
and damage.
• Apply service brakes. After initial
drop, pressure should hold
steady, or increase slightly, with
engine at idle.
• Check steering wheel for
excessive free play.
• Check for loose items in the cab.
Secure them if necessary.
Hooking Up To Trailer
Hook-Up Preparation
• Check kingpin and mounting
plate on trailer, free from wear,
bends or damage.
• Chock trailer wheels.
Fifth Wheel or Trailer Hitch
• No visible space between fth
wheel and trailer.
• Locking jaws around the shank
and not the head of kingpin.
• Release lever properly seated
and safety latch/lock engaged.
• Check all connections to dolly or
trailer hitch and safety chains are
secured.
• Check function of trailer air
supply valve and trailer brakes.
Sliding Fifth Wheel
• Check that fth wheel is not so
far forward that the tractor frame
will strike the landing gear during
turns.
10
Trailer Front Area
Air and Electrical Connections
• Glad hands properly mounted,
free from damage and not
leaking.
• Trailer cord receptacle properly
mounted, free of damage; plug
properly seated and safety catch
engaged to prevent accidental
disconnect.
• Air and electrical lines properly
secured against tangling,
snagging and chang with
sufcient slack for turns.
NOTE
Refer to the trailer manufacturer's manual
for specic information on the trailer
checks.
11
Right Side of Trailer Area
Landing Gear or Dolly Area
• Fully raised; no missing or
damaged parts.
• Crank handle present and
secured.
• If power operated, no air/
hydraulic leaks.
Spare Wheel(s)
• Carrier or rack not damaged.
• Spare wheel securely mounted in
rack.
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