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Grove
Published 10-01-2020 Control # 699-00
4-11
GRT9165 SERVICE MANUAL
BOOM
You can reach the cable drum through the manhole if you
first extend telescopic section
1
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.
Prerequisite
Before maintenance, the following requirement must be met:
•
The battery disconnect 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.
1.
Make sure that the cable drum is current-free.
2.
Unscrew all screws (1, Figure 4-13) and remove the
casing (2).
3.
Check the seal on the casing for damage and replace it if
necessary.
4.
Remove any moisture in the casing with a clean, lint-free
cloth.
5.
Remove visible dirt on the slip rings (2, Figure 4-14) 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.
CAUTION
Damage to the Rated Capacity Limiter Hazard!
Before maintenance work on the slip ring assembly,
always switch off the battery disconnect switch so that the
cable drum is current-free.
This prevents short circuits which may lead to damage to
the central unit.
9031
FIGURE 4-13
1
2
FIGURE 4-14
For reference only, your slip ring assembly
may look different
Содержание Grove GRT9165
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