Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 3-33
2250 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
3
PREPARING CRANE FOR OPERATION OPERATION
Engine Startup
See the Engine Manual for additional startup instructions
and precautions.
1. Unplug or turn off the engine block heater and any other
tank heaters that the crane is equipped with.
2. Open the hydraulic shut-off valve (Figure 3-14
).
WARNING
Read Capacity Charts!
Avoid serious injury or equipment damage. Failing to
comply with the capacity charts can result in tipping or
structural failure of the boom/luffing jib.
Do not attempt to operate the crane without first reading
and understanding the capacity charts.
The crane must be rigged and operated according to the
instructions given in the capacity charts and rigging
guides.
Unless otherwise specified in the capacity charts, all
crane operations must be performed with the crane level
to within one percent of grade. Otherwise, the crane could
tip.
Observe the minimum block weight requirement given on
the capacity charts.
Be aware when operating in those areas of the capacity
chart marked b, the weight of the backstay pendants can
pull the jib against the physical stops if the load block or
hook-and-weight ball is not heavy enough. This action will
result in sudden unexpected movement of the load.
Make sure the crawlers are blocked, if required per the
capacity chart, prior to raising and lowering the
attachment. Read and comply with the instructions in the
Crawler Blocking Diagram.
Do not operate the crane, which includes raising the boom
from ground level, if the wind exceeds the limits given in
the capacity charts. Contact your local weather station for
wind velocity.
Moving Load Hazard!
Avoid injuring personnel in the operating area! Sound the
horn to alert personnel that operation is about to begin.
The operator shall select the proper operating mode prior
to operation. Unexpected drum motion or improper limit
responses can result if the wrong mode is selected.
The limit bypass switch must be in the ACTIVATE
position, and all limits with which the crane is equipped
must be operational before operating the crane. See the
Service Manual for adjustment procedures.
CAUTION
Machinery Damage!
Before operating the crane at the start of each shift,
perform preventive maintenance checks and lubrication
services listed in your Operator Manual. Adjust the
operator’s seat (Figure 3-13
).
WARNING
Running Engine Hazard!
Avoid injuring personnel or equipment damage. A running
engine has the potential to sever limbs. Do not start the
engine until the following precautions are observed.
• Do not start the engine if a warning or out-of-order
sign is present at the start controls.
• Make sure all controls are off so the crane and load do
not move when the engine is started.
• Make sure all personnel are clear of the crane before
starting the engine. Sound the horn to alert personnel
that operation is about to begin.
CAUTION
Pump Damage!
Avoid damaging the pumps. The pumps could cavitate
and be damaged if the engine is started with the hydraulic
shut-off valves closed.
FIGURE 3-14
P779
Hydraulic Tank
Shut-off Valve
To Hydraulic
Tank
Handle Open
(pull towards you to
close)
To
Pumps
Install Bolt and Nut or
Padlock to Lock
Handle Open
View at Rear of Rotating Bed
Near Hydraulic Tank

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English