Manitowoc Grove TMS9000-2 Series, Руководство по обслуживанию

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Grove
Published 01-14-2021 Control # 707-01
3-9
TMS9000-2 SERVICE MANUAL ELECTRICAL SYSTEM
3
MAINTENANCE
General
Electrical system maintenance includes troubleshooting and
replacement of damaged components. Observe standard
wiring practices when replacing components.
General Troubleshooting
Tools for Troubleshooting
This machine Incorporates a CAN bus Multiplex system. In
order to effectively troubleshoot the electrical system, you
need a Windows-based PC, CAN-link service software and a
connection cable. The CAN-link service software, connection
cable and CCS service tool software are available through
Crane Care to those service technicians who have attended
the Grove New Technology training course.
NOTE: Make voltage checks at terminations when
components are installed and operating. Make
continuity checks when components are isolated or
r e m o v e d . Tr o u b l e s h o o t p e r t h e f o l l o w i n g
guidelines:
1. First, use reported symptoms to identify a problem or a
suspect component.
2. Test the suspect component per instructions in this
section. The instructions identify the fuses and
components and guide you from the easiest and most
likely problems to the hardest and least likely problems.
3. Using a multimeter, test the circuit for continuity if you
suspect a broken circuit or for voltage if you suspect a
power problem. Check the electrical schematic and
wiring diagram for most accurate wiring information.
4. If the component proves faulty, replace it with a known
working component. If wiring proves faulty, replace it
with wiring of equal wire gauge.
5. After troubleshooting, if the circuit proves faulty, repair
and then test to ensure the circuit works properly.
Troubleshooting Engine Starting Problems
1. Verify the battery terminals are connected and clean, the
transmission is in neutral, and the machine is fueled.
2. Check Fuse F61. Replace, if necessary.
3. Try to turn on the head lights, tail lights, marker lights,
dome light, work light, or gauge lights and panel lights to
verify the batteries have at least some charge. If none of
these lights comes on, suspect the batteries. Charge
batteries as needed, or jump-start the crane from
another crane. Refer to
Jump Starting the Crane
, page
3-23. If the batteries will not take a charge replace them.
4. If you hear the starter relay clicking repeatedly, power is
reaching the starter, but not enough. Suspect the
batteries. Charge batteries as needed, or jump-start the
crane from another crane. If the batteries will not take a
charge replace them.
5. Turn the ignition switch(es) to RUN (1). Using a
multimeter, check for 24 volts on the “I” post of ignition
switch(es). If there is not 24 volts (but the head lights, tail
lights, marker lights, dome light, work light, or gauge
lights and panel lights will come on), suspect the ignition
switch(es) and the power circuit to it starting at the
ignition switch(es) fuse FD04. Repair or replace circuit,
switch, or fuse as needed.
6. If the batteries, fuses, ignition switch(es), and power
circuit to the ignition switch check out, do one of the
following:
a. If you hear no noise when you try to turn the starter,
troubleshoot the start circuit (ignition switch, electric
shifter, neutral start switch and wiring from ignition
switch to starter relay). Make repairs as needed.
b. If the engine still won’t start, and you hear no noise
o r j u s t a s i n g l e c l i c k , s u s p e c t t h e s ta r t e r.
Troubleshoot the start circuit from the starter relay
WARNING
Serious Injury Could Occur!
If it is necessary to perform electrical maintenance on live
or hot circuits, remove all rings, watches, and other
jewelry before performing maintenance as serious burns
result from accidental grounding or shorting circuits.
Ensure the batteries are disconnected before performing
any maintenance on an electrical circuit which is not
fused.
CAUTION
Damage Could Occur!
Never replace original wiring with wiring of a smaller size
(gauge).
WARNING
Serious Injury Could Occur!
Many steps in the troubleshooting procedures require
testing live (energized) components. Perform these steps
observing good safety practices to avoid electrical shock
injury.
Fo
r
Reference
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