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MicroController Control System
Testing And Adjusting
Testing And Adjusting
Troubleshooting
The following Troubleshooting Check List is an aid in
troubleshooting MicroController lift trucks. The
troubleshooting check list, “Run Time” diagnostic
indications, “Self” diagnostic tests, problem list and
problem flow charts will assist in:
1.
Defining the problem and verifying a problem
exists.
2.
Performing the checks in a logical order.
3.
Making the necessary repairs.
4.
Verifying the problem has been resolved.
The lift truck can move suddenly. Battery
voltage and high amperage are present. Injury
to personnel or damage to the lift truck is
possible. Safely lift both drive wheels off the
floor. Put blocks of wood under the frame so the
drive wheels are free to turn. During any test or
operation check, keep away from drive wheels.
Before any contact with the control panel is
made, disconnect the battery and discharge
HEAD CAP. Ring's, watches and other metallic
objects should be removed from hands and
arms when troubleshooting, the MicroController
Control System.
NOTICE
Damage can be caused to the test equipment.
Make resistance and continuity checks only
after the battery is disconnected.
NOTICE
Damage can be caused to the control panel. Do
not use steam or solvent to clean the controls.
Use pressure from an air hose with a maximum
pressure of 205 kPa (30 psi) to clean the control
panel when necessary. Make sure the air pressure
supply is equipped with a water filter.
WARNING
NOTICE
Damage can be caused to the control panel. Do not
switch the direction lever from one direction to the
other (plug the lift truck) when the drive wheels are
off the ground and in rotation at full speed.
Troubleshooting Check List
1.
Perform Preparation Tests and Checks.
2.
Correct any display problems and “Run Time”
diagnostic faults.
3.
Correct the “Self” diagnostic faults.
4.
Perform Operational Checks.
5.
Correct “Failure Code Problems” in the
Troubleshooting Problem List.
6.
Perform Operational Checks to verify repairs.
Preparation Tests and Check
Battery Tests
A weak battery can cause or contribute to problems
in the MicroController and power circuits.
Verify the battery is good before investigating other
possibilities.
1.
Verify proper polarity at the battery connector and
the MicroController panel. Positive cable should
be at the line fuse and negative at the negative
on control panel..
2.
If the lift truck is operational, perform a battery
load test.
3.
If the truck is not operational and the battery is
suspected, perform a cell voltage or specific
gravity test.
Содержание B20S-3
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