3-10 Published 11-22-2016, Control # 345-12
ELECTRICAL SYSTEM RT9130E-2 SERVICE MANUAL
Troubleshooting Crane Components and
Accessories
1. If a crane component or accessory won’t work when it is
supposed to, check and replace fuse. Also check and
replace its relay as needed.
2. Check the component or accessory, its control or
triggering component, and its circuit for continuity
problems and other problems. Repair any faulty
component or accessory or trigger. Repair wiring if
faulty.
3. Repair:
a. MOTOR: Remove faulty motor or faulty trigger
(switch or relay), install new motor or trigger, install
new fuse, test motor. For further information, see
the applicable section in this manual.
b. SOLENOID VALVE: Remove faulty valve or
solenoid, install new valve or solenoid, install new
fuse, fill fluid system, test valve.
c. RCL: Repair per RCL manual, install new fuse, test
per RCL manual.
d. ROTATION INDICATOR: Remove thumper solenoid
or sensor, install sensor, install new thumper, test
thumper. For further information on rotation
indicator, refer to Section 5 Hoist Drum Rotation
Indicator System, page 5-18.
Alternator Replacement
Removal
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. Open the engine compartment.
6. Tag and disconnect the electrical leads from the
terminals on the alternator.
7. Turn the tensioner clockwise to remove tension from the
belt. Slip the belt off of the alternator pulley, then let the
tensioner return to its normal position.
8. Remove and tag all wires. Remove the alternator link
capscrew and the mounting capscrew. Remove the
alternator.
Installation
1. Inspect the belt. Verify it has no cracks or other damage.
Replace damaged belt as needed.
2. To assemble the alternator, the mounting components
must be tightened in the following sequence.
a. Alternator-to-alternator bracket capscrew.
b. Lower brace-to-alternator capscrew.
c. Lower alternator brace-to-water pump capscrew.
3. Install the belt on all engine pulleys except the alternator
pulley for now.
4. Turn the tensioner clockwise. Slip the belt onto the
alternator pulley, then carefully return the tensioner to its
normal position so it puts tension on the belt. Make sure
the belt is centered on the tensioner.
5. Check belt tension at the belt’s longest span (longest
distance between pulleys). At the center point of the
longest span, push in on the belt with your thumb. Verify
you can deflect the belt no more than 3/8 to 1/2 in (10 to
13 mm) with your thumb. (Or, using a belt tension gauge,
verify there is 60 to 130 lb (267 to 578 N) of tension on
the belt in the middle of its longest span.) Replace belt if
it is too loose (overstretched).
6. Ensure tensioner bolt is tight.
7. Connect the electrical leads to the terminals as tagged
during removal.
8. Connect the batteries. Close the engine compartment.
9. Install the ECM power fuse.
10. Turn the battery disconnect switch to the ON position.
Check
1. Run engine. Verify reading of voltmeter on front console
is 12 volts or greater. Make repairs as needed.
2. Continue troubleshooting charging system, as needed, if
replacement of alternator did not correct problem in
charging system.
Starter Replacement
Removal
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. Open the engine compartment.
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