Troubleshooting 2200 YRM 1067
Dash Display
Controller LED Handset or PC
AL01 1Flash PUMP VACC NOT OK
CONDITION
Connection/communication error between control
cardandtractioncontroller.
TRUCK RESPONSE
Traction and hoist functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• A lift/lower switch is damaged or defective.
Install handset. Go to tester function. Check lift-
ing control and EVP voltage. Check on/off switches
and proportional switches for smooth, linear opera-
tion. Replace damaged switches.
• Control card lift/lower switch calibration is out of range.
Install handset. Go to tester function. Check lifting
control and EVP voltage. Output of proportional
hydraulic controls should be less than 1V (20%) at
neutral.
Recalibrate control card.
• Check the functionality of the control card. Refer to
Control Card Functional Test in this section.
LOGIC
Occurs if the output of
one on the hydraulic controls is higher
than 1V (20%) at start.
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