Battery Replacement; Relay Panel Component Replacement - Manitowoc Grove RT765E-2 Service And Maintenance Manual

ELECTRICAL SYSTEM

Battery Replacement

Removal
CAUTION
To avoid possible engine fault codes and undesirable
operation, ensure the keyswitch has been off 2 minutes
before disconnecting batteries.
Disconnect batteries if machine will be inactive for over
24 hours.
1. Ensure that the key switch has been off for 2 minutes.
2. Turn the battery disconnect switch to the OFF position.
3. Remove the ECM power fuse.
4. Remove negative battery cables.
5. Remove positive battery cables.
6. Tag and disconnect leads from the battery terminals
starting with the positive terminals.
7. Remove the nuts and washers from the bracket hold
down rods. Remove the hold down bracket.
8. Remove the batteries.
Installation
1. Place the batteries in the battery box.
2. Install the hold down bracket so it can hold down the
batteries. Secure the bracket (and batteries) to the
bracket hold down rods with nuts and washers.
3. Connect leads to the battery terminals starting with the
positive terminals.
4. Close the battery box cover.
5. Install the ECM power fuse.
3-12
6.
7.

Relay Panel Component Replacement

Accessory Relay
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Connect the batteries.
FIGURE 3-8
11. Turn the battery disconnect switch to the ON position.
12. Verify proper installation by operating all components
Buzzer Replacement
1.
2.
3.
4.
5.
6.
7.
Published 9-04-2014, Control # 422-08
RT765E-2 SERVICE MANUAL
Turn the battery disconnect switch to ON.
Verify replacement batteries work by starting crane's
engine and operating various crane components.
Turn the ignition switch to the OFF position.
Wait two minutes.
Turn the battery disconnect switch to the OFF position.
Working behind the operator's seat, remove the
hardware securing the panel cover and remove the
cover.
Tag and disconnect the electrical leads from the suspect
relay.
Remove the hardware securing the suspect relay to the
relay panel assembly. Remove suspect relay.
Install replacement relay on relay panel and secure it
with attaching hardware.
Connect the electrical leads to the relay as tagged
during removal.
Position the cover on the panel and secure with the
attaching hardware.
involved with the replacement relay verifying they all
work.
Working behind the operator's seat, remove the
hardware securing the panel cover and remove the
cover.
Tag and disconnect the electrical leads from the buzzer.
Unscrew the plastic collar ring from under the panel and
remove the buzzer from the hole in the panel.
Install replacement buzzer through the hole in panel and
secure with the plastic collar ring.
Connect the electrical leads to the buzzer as tagged
during removal.
Position the console front cover on the console and
secure with the attaching hardware.
Verify proper operation by positioning the ignition switch
to RUN (1). Buzzer should sound when engine is not
running.