SAFETY INFORMATION RT770E OPERATOR MANUAL
2-38 Published 04-04-2017, Control # 446-09
JIB
To avoid death or serious injury, follow the procedures in this
manual during erection, stowage, and use of the jib.
Install and secure all pins properly.
Control movement of the jib at all times.
Do not remove right side boom nose pins unless jib is
properly pinned and secured on front and rear stowage
brackets.
Do not remove all the pins from both front and rear stowage
brackets unless the jib is pinned to the right side of the boom
nose.
Properly inspect, maintain, and adjust jib and mounting.
When assembling and disassembling jib sections, use
blocking to adequately support each section and to provide
proper alignment.
Stay outside of jib sections and lattice work.
Watch for falling or flying pins when they are being removed.
PARKING AND SECURING
When parking on a grade, apply the parking brake and chock
the wheels.
Section 3 of this manual provides instructions for parking and
securing a crane when it is to be left unattended. These
instructions are intended to allow the crane to be placed in
the most stable and secure position. However, Manitowoc
recognizes that certain jobsite conditions may not permit the
boom and jib of a crane to be fully lowered to the ground.
When a qualified person at a jobsite determines that it is not
practical to lower the boom to the ground, we recommend
the following additional instructions be followed:
• The crane should be left in the smallest, most stable,
valid operational configuration that the job site
practically allows.
• The crane can not be left running, with a load on the
hook, or in erection mode, or in wind conditions in
excess of allowed values.
• The boom should be retracted as far as is practical, the
crane configured in as stable a configuration as possible
(boom angle, superstructure orientation, jib angle, etc.)
• In high winds the boom and jibs should be lowered, or
secured. Changing weather conditions including but not
limited to: wind, ice accumulation, precipitation, flooding,
lightning, etc. should be considered when determining
the location and configuration of a crane when it is to be
left unattended.
SHUT-DOWN
Use the following steps when shutting down the crane:
• Engage the parking brake.
• Fully retract and lower the boom.
• Engage the swing lock pin or 360 degree swing lock (if
equipped).
• Place crane function power switch to OFF (if equipped).
• Place controls in neutral position.
• Shut down the engine and remove the ignition key.
• Turn the battery disconnect switch to the OFF position.
• Chock the wheels, if not on outriggers.
• Lock the operator’s cab (if applicable) and install vandal
guards, if used.
COLD WEATHER OPERATION
Cold weather operation requires additional caution on the
part of the operator.
Check operating procedures in this manual for cold weather
starting.
Don’t touch metal surfaces that could freeze you to them.
Clean the crane of all ice and snow.
Allow at least 30 minutes of engine run time for hydraulic oil
to warm up.
Plastic components (battery casings, heater controls, dash
controls, etc.) are extremely brittle in extreme cold. Use
caution handling and operating these components in sub-
zero temperatures, avoiding shock loading.
In freezing weather, park the crane in an area where it
cannot become frozen to the ground. The drive line can be
damaged when attempting to free a frozen crane.
DANGER
Boom Extension Hazard!
To avoid death or serious injury, follow procedures in Load
Chart, safety, and operation manuals during erection,
stowage and use of jib. Install and secure all pins properly
and control jib movement at all times.
DANGER
Tipping Hazard!
When parking the crane and leaving it unattended follow
the instructions in Section 3 of this manual.
Failure to comply with these instructions may cause death
or serious injury
To Next Page
Loading...
Need help?
General
