Manitowoc Grove TMS9000-2 Series, Руководство по обслуживанию

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Grove
Published 01-14-2021 Control # 707-01
4-53
TMS9000-2 SERVICE MANUAL SUPERSTRUCTURE
4
The second cable drum (1), (Figure 4-40) is located in the
main boom underneath the telescoping cylinder.
You can reach the cable drum through the manhole if you
first extend Telescopic Section I by approximately 2.0 m (6.6
ft).
NOTE: The following sections describe the maintenance
procedure for the outer cable drum. Maintenance
on the cable drum in the boom is carried out in the
same way.
Prerequisites
Before maintenance, the following requirements must be
met:
• The main boom must be resting in the boom rest.
• The battery master switch is switched off.
Maintenance of the Slip Ring Assembly
To remove abrasion particles from the contact brushes, use
only dry, oil-free air or a clean, lint-free cloth.
• Make sure that the cable drum is current-free.
• Unscrew all screws (1), (Figure 4-41) and remove the
casing (2), (Figure 4-41).
• Check the seal on the casing for damage and replace it if
necessary.
• Remove any moisture in the casing with a clean, lint-free
cloth.
WARNING
Risk of accidents due to rope end fitting being
overloaded!
After installing a new hoist rope, the lowering limit switch
must always be reset.
WARNING
Crushing Hazard!
Secure the boom against unintentional movement, so that
your fingers will not be crushed by the turning slip ring
assembly. If you are carrying out this operation with the
help of someone else, communicate with the person in
the crane cab by means of clear hand signals.
1
FIGURE 4-39
9287-2
FIGURE 4-40
1
9287-1
CAUTION
Damage to the Rated Capacity Limiter Hazard!
Before maintenance work on the slip ring assembly,
always switch off the battery master switch so that the
cable drum is current-free.
This prevents short circuits which may lead to damage to
the central unit.
9031
1
2
FIGURE 4-41
Fo
r
Reference
Only