27
Heavy Haul Trailers
3.3
Pre-Operation Trailer Inspection Procedure
The safe and trouble-free use of a Heavy Haul trailer requires the operator to maintain the unit in good
operating condition.
To assist the operator, a pre-operation checklist is provided that should be followed each time before
the trailer is used. Item numbers in Fig. 3-2 correspond to the following “WALK AROUND SEQUENCE”.
WALK AROUND SEQUENCE
Area 1 – Trailer Frontal Area
1.
Air and Electrical Connections
•
Verify that glad hands are properly mounted, free of damage,
not leaking and not worn.
•
Check electrical line receptacle: Ensure that it is properly
mounted, free of damage and the plug is adequately seated
with safety catch engaged to prevent accidental
disconnection.
•
Ensure that air and electrical lines are properly secure against
tangling, snagging and chafing with sufficient slack for turns.
2.
Lights and Reflectors
•
Check front trailer clearance and identification lights are clean
and operating.
•
Ensure reflectors are present and clean.
Area 2 - Fifth Wheel Coupling Area
1.
Fifth Wheel (Lower)
•
Secure mount to frame.
•
No missing or damaged parts.
•
No visible space between upper and lower fifth wheel.
•
Locking jaws are around the shank and not the head of the
kingpin.
•
Release lever properly sealed and safety latch lock engaged.
2.
Fifth Wheel (Upper)
•
Kingpin is not worn, bent or damaged.
3.
Air and Electrical Lines Visible From This Point
•
Ensure lines are properly secured and are free from tangling,
snagging, and chaffing.
•
Free of damage, oil and grease.
1
12
11
10
9
8
7
6
5
4
3
2
FIG. 3-2.
Trailer Walk Around
Summary of Contents for H550 Series
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Page 4: ...Heavy Haul Trailers ...
Page 15: ...Heavy Haul Trailers 8 ...
Page 30: ...21 Heavy Haul Trailers ...
Page 31: ...Heavy Haul Trailers 22 Both Sides ...
Page 32: ...23 Heavy Haul Trailers Both Sides ...
Page 52: ...43 Heavy Haul Trailers 3 5 4 Extension Load Shim Instructions ...
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Page 84: ...69 Heavy Haul Trailers Date Maintenance Performed Maintenance Records ...
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