Yale MPB040-E, Manual

Page: 33 / 130

Repairs
CONTROLLER, REPLACE
When experiencing problems with the hydraulic func-
tions, the controller may not be at fault.
ALWAYS
troubleshoot to verify the component(s) at fault before
replacing the controller. Refer to the section
ZAPI™
Controllers 2200YRM1064, ZAPI™ Controllers
2200YRM1006, or ZAPI™ Controllers
2200YRM1067 for your lift truck for additional infor-
mation on the ZAPI™ display and for information on
troubleshooting fault codes, adjusting parameters,
and testing the ZAPI™ motor controller.
Remove
1. Move lift truck to a safe, level area.
NOTE: Some new controllers may have software up-
grades which will not allow previous controller param-
eters and settings to be transferred.
2. If possible, prior to replacing the controller, note
all special customer parameters and settings.
3. Turn the key switch to the OFF position.
4. Disconnect and separate the battery connectors.
5. Block drive tire to prevent movement. See the
section
Periodic Maintenance 8000YRM1048,
Periodic Maintenance 8000YRM1009, or Peri-
odic Maintenance 8000YRM1379 for your lift
truck.
NOTE: If removing the entire control panel assembly
to include the electrical panel plate, it will be neces-
sary to perform Step 6. If only removing the controller,
contactor, horn, fuses, or wires, it is not necessary to
perform Step 6. See Figure 6 or Figure 7.
6. Remove battery to gain access to control panel
screws. Refer to the section
Periodic Mainte-
nance 8000YRM1048, Periodic Maintenance
8000YRM1009, or Periodic Maintenance
8000YRM1379 for your lift truck, for instructions
on how to remove the battery.
7. Remove the upper drive unit compartment cover.
8. Remove the lower drive unit compartment cover.
9. Discharge the capacitor. See Special Precau-
tions.
10. Remove the jumper assembly connector from the
"E" terminal of the motor controller. If equipped,
remove the LED assembly connector from the "D"
terminal of the motor controller.
11. Tag and remove the control wiring from the motor
controller.
12. Tag and disconnect the power wires from the mo-
tor controller.
13. Remove four capscrews and lockwashers that
hold controller to plate and remove controller.
2200 YRM 1007 Repairs
9