OPERATING CONTROLS AND PROCEDURES RT9130E-2 OPERATOR MANUAL
3-22 Published 3-1-2018, Control # 559-03
Hoist Minimum Wrap Indicator (Optional,
Standard w/CE)
The Hoist Minimum WRAP Indicator (12, Figure 3-11) is
located on the right side console. The indicator will illuminate
red when three wraps or less of cable remains on either
hoist.
Cold Weather Indicator (Optional)
The optional Cold Weather Indicator (13, Figure 3-11) is
located on the right side console. The indicator comes on
when ambient temperature is at or below -29°C (-20°F). It
serves as a warning for the operator to stop operation in
extreme cold.
Telescope Cylinder Charge Indicator (If
Equipped)
The Telescope Cylinder Charge Indicator (14, Figure 3-11) is
located on the right side control panel and is part of the
telescope cylinder charge system. The telescope cylinder
charge system is designed to prevent boom retraction due to
thermal contraction under the following operating conditions:
If the crane is operated with a long boom length and low
boom angle, and the hydraulic oil in the telescope cylinders
cools and contracts, the friction forces in the extended boom
will prevent the boom from retracting. Then, if the operator
begins to elevate the boom without telescoping out slightly,
the crane may reach a boom elevation angle where the
weight of the boom sections and load overcomes the friction
forces in the boom sections, causing the boom to retract until
the column of oil inside the cylinders once again supports the
boom sections. The telescope cylinder charge system will
prevent the boom from retracting under these conditions by
automatically replenishing the volume of hydraulic oil lost in
the telescope cylinders due to thermal contraction.
The telescope cylinder charge system operates
automatically and does not require any operator input. The
indicator illuminates amber and the buzzer sounds (2,
Figure 3-14) when the boom is elevated above 35° and the
telescope cylinder charge system is not functioning properly.
If the buzzer sounds and the indicator illuminates, the
operator should immediately telescope out slightly to
manually charge the telescope cylinders, stop operation,
then have the system repaired as necessary.
NOTE: The telescope cylinder charge system does not
prevent thermal contraction of hydraulic oil due to a
drop in temperature and will only prevent boom
retraction when the crane’s engine is running and
the boom angle is greater than 35°. The system is
designed only to prevent boom retraction that may
occur due to thermal contraction under the
operating conditions previously described.
Ambient Temperature Indicator (Optional)
The Ambient Temperature Indicator (15, Figure 3-11) is
located on the right side console. When the ambient
temperature outside the crane reaches below -29°C (-20°F)
the indicator will illuminate and send a signal to the rated
capacity limiter (RCL) system. This temperature control is to
prevent operation of crane lifting functions in temperatures
below -29°C (-20°F). The system will initiate lockout of the
following crane functions: hoist up, boom down, and boom
telescope-extend. Hoist lowering, boom up and boom
telescope-retract along with lockout override, will still be
operational to lower the load.
OUTRIGGER CONTROL
Cab Outrigger Control
The Cab Hand-held Outrigger Control (1, Figure 3-12) is
stowed in the cab (Figure 3-1) and is used to control the
outriggers from inside the cab.
Extend/Retract Switch
The Extend/Retract Switch (6, 7 Figure 3-12) is located on
the side of the Outrigger Control Box and is used in
conjunction with the Outrigger Selector Switches (2,3,4,5
Figure 3-12) to control the outrigger functions.
Outrigger Selector Switches
There are four Outrigger Selector Switches (2,3,4,5,
Figure 3-12) on the Outrigger Control Box. To extend or
retract an outrigger component, first select the component
with the Outrigger Selector Switch (2,3,4,5), then select
extend or retract with the Extend/Retract Switch (6,7,
Figure 3-12).
NOTE: The park brake must be engaged for the outriggers
to operate.
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