DFD6361-Maintenance - 第699页
F-129 Procedur es for replaci ng the controller for the wheel cool ant water flow rate (Conti nued) Step No. Do This 5 Connect the power cable A and B and AE-LINK c able to the main board in the circuit board box 1. - Th…
F-128
5-4-3. Replacing the controller for the wheel coolant water
flow rate
Procedures for replacing the controller for the wheel coolant water flow rate
Step No. Do This
1
Replace the controller unit for the wheel coolant water flow rate
to the new one.
Name Part No.
Controller MOKFH133
2
Connect the joints to the controller unit.
- In order to prevent water leakage, use seal tape or so in
connection of piping.
- Take care so that any piece of the seal tape used for piping will
not get into the pipe.
Wind the seal tape here.
3
Reinstall the new controller unit in its original position.
4
Connect the tubes to the joints.
F-129
Procedures for replacing the controller for the wheel coolant water flow rate (Continued)
Step No. Do This
5
Connect the power cable A and B and AE-LINK cable to the
main board in the circuit board box 1.
- The connection port for the power cable A is located on your
left and that for cable B is on your right.
- The connection port for AE-LINK cable is the left side one of
the two lining abreast.
Circuit board box 1
Connection port for
AE-LINK cable
Main board
Connection port
for power cable A
Connection port
for power cable B
6
Connect the coupling cable to the circuit board box 2.
7
Reinstall the cover.
8
Reinstall the partition (left).
9
Turn ON the facility power source and open the main valve of
the wheel coolant water.
10
Open the circuit breaker lever lockout and then turn ON the
circuit breaker.
11
Insert the key into the main switch and then turn ON the main
switch.
12
Press the to turn ON the wheel coolant water. Then
make sure that there is no water leakage.
- If you find water leakage;
Repeat the procedures of this section beginning with the step 1.
F-130
5-5. Replacing the Circuit Board of Electrical System
due to Battery Life End
About replacement of the circuit board of electrical system
Replacement of the circuit board of electrical system must be carried out by
Disco Service engineers.
When it becomes necessary to replace the circuit board due to the end of its
battery life, contact your nearest Disco Service office.