9.1 Controls and Instruments – 9 Frame, Body, Cab and Accessories
Maintenance Manual Ottawa T2 4x2
9.1.39 Speedometer
page
–
Diagnosis
The speedometer may include an optional connection to the
pulse generator.
Components
•
Cab Accessory Circuit Breaker
•
Gauge Cluster
•
Headlight Switch
•
Ignition Switch
•
Panel Dimmer Switch (Optional)
Electronic Speedometer Circuit Diagnosis
Defective wiring
Inspect connections and wires.
Test circuits. Repair or replace as
needed.
Mislocated wiring
Inspect routing. Relocate wires or
isolate terminals as needed.
Intermittent
Defective wiring
Inspect wires for kinks and breaks.
Repair or replace as needed.
Mislocated wiring
Inspect routing. Relocate wires or
isolate terminals as needed.
Runs unevenly, or fast or slow
Defective gauge cluster
Replace.
Observation
Cause
Action
Observation
Cause
Action
Panel lamp does not light
Circuit breaker open
Reset. Repair short as needed. Re-
place circuit breaker as needed.
Defective wiring
Inspect connections and wires.
Test circuits. Repair or replace as
needed.
Inaccurate
Defective wiring
Inspect connections and wires.
Test circuits.
No reading
Circuit breaker open
Reset. Repair short as needed. Re-
place circuit breaker as needed.
Mislocated wiring
Inspect routing. Relocate wires or
isolate terminals as needed.
Defective wiring
Inspect connections and wires.
Test circuits. Repair or replace as
needed.
Содержание Ottawa t2
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