5
TROUBLESHOOTING
Troubleshooting should be performed by a trained and competent technician. Landoll Corporation is not
responsible for equipment that is improperly maintained. Contact an authorized Landoll dealer or the Landoll
Service department for service questions.
5-1 ELECTRICAL
Most electrical system problems show up as a burned out light or fuse, or inoperative electrical compo-
nent. Wiring, grounds or components may be at fault. Locate the symptom in this section that best identi-
fies your electrical problem. Check out each possible problem under that symptom. If the problem cannot be
located, see an automotive electrical specialist. For maintenance procedure, see
Section 4-5.
SYMPTOM
PROBLEM: REMEDY
NO LIGHTS
Fuse blown on tractor: Replace fuse.
Loose connection at plug-in: Tighten connection.
Broken or corroded wires:
Replace wire.
Ground wire loose: Clean and tighten ground.
LIGHTS FLICKERING
Wires shorted or loose:
Locate, insulate, replace, or
tighten.
LIGHTS DIM
Voltage difference between trailer & tractor:
Trac-
tor supply wire or circuit components too low capacity
- enlarge wire or component, match bulbs with tractor
voltage.
LIGHTS BRIGHT & BURN OUT
Ground wire disconnected:
Self-explanatory.
Voltage difference between trailer & tractor:
Trac-
tor supply wire or circuit components too low capacity
- enlarge wire or component, match bulbs with tractor
voltage.
FUSE BLOW-OUT OR CIRCUIT BREAKER TRIP-
PING
Vibration:
Locate source of vibration and repair.
Short circuit:
Replace fuse and try all accessories. If
fuse blows right away, locate short and repair.
LAMP BULB BURN OUT
Vibration:
Locate source of vibration and repair.
Short circuit:
Replace fuse and try all accessories. If
fuse blows right away, locate short and repair.
Loose connection: Check lamp sockets and
ground connections.
Intermittent short:
Locate short and repair.
Improper voltage:
Check voltage regulator output.
5-2 TIRES - WHEELS - SUSPENSION
Most tire, wheel, and suspension related problems are due to excessive loads, extreme conditions, and
improper maintenance. Tire, wheel, and suspension problems can be easily detected and solved by check-
ing the following guide. For maintenance procedures, see
SYMPTOM
PROBLEM: REMEDY
VIBRATIONS WHILE DRIVING
Improper tire inflation:
Inflate to proper pressure.
Tires cupped or have flat spots:
Replace tires.
Wheels bent or loose:
Replace or tighten.
Tires incorrectly mounted:
Remount.
Mud in wheels:
Clean wheels.
Tire(s) out of balance:
Balance tires.
Brakes dragging:
Locate cause and repair.
Object(s) stuck between duals:
Remove object(s).
5-1
Содержание L20 Series
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Страница 15: ...3 3 Figure 3 3 Electrical Assembly For Trailer w Electric Brakes...
Страница 16: ...3 4 Figure 3 4 Electrical Assembly For Trailer w Air Brakes...
Страница 26: ...4 6 Figure 4 3 Axle and Brake Assembly...
Страница 35: ...4 15 Figure 4 12 Mounting Tires and Wheels Figure 4 13 Stud Tightening Sequence...
Страница 39: ...NOTES 4 19...
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