National Crane
PUBLISHED 04-26-2019 CONTROL # 113-09
3-1
600E2 OPERATOR MANUAL
OPERATING CONTROLS AND PROCEDURES
3
SECTION 3
OPERATING CONTROLS AND PROCEDURES
TRUCK CAB CONTROLS
Power Take-Off
Manual Shift Control
The PTO’s are engaged when the knobs on dash or floor are
pulled out and disengaged when the knobs are pushed in.
The truck gear shift lever must be in neutral and the clutch
depressed whenever the knobs are moved.
Air Shift Control
The PTO is engaged when the switch is moved to apply air to
PTO and disengaged when switch in off position. The truck
gear shift lever must be in neutral and clutch depressed
when switch is moved. The transmission selector lever must
be returned to “N” for stationary vehicle operation. The
power take-off may be disengaged while in any transmission
range provided that the load has first been removed from the
PTO.
Electric Shift Control
Full torque electric shift PTO’s are controlled by a switch. To
operate, disengage the clutch, shift to fourth or fifth gear, and
operate the switch down to engage the PTO or up to
disengage the PTO. Return the gear shift to neutral and
engage the clutch.
Power Shift Control
If the vehicles equipped with automatic transmission, the
power take-off must be engaged with the engine at idle.
Refer to transmission manufacturers instructions for special
procedures.
Park Brake
The truck brake must be firmly set before leaving cab to
begin operation. If the ground surface is icy or slick or is
sloped, you may be required to help immobilize the truck with
wheel chocks.
Cold Weather Operation
The following recommendations are for operating National
cranes in regions with ambient temperatures below -9°C
(15°F) which are considered arctic.
Cranes should have appropriate hydraulic oil, lubricants, and
other auxiliary items required for operation in very cold
temperatures. Operate individual crane functions to ensure
they are sufficiently warmed prior to performing a lift.
Operation of cranes at full rated capacities in temperatures
between -9°C (15°F) and -40°C (-40°F) or lower should be
accomplished only by competent operators who possess the
skill, experience, and dexterity to ensure smooth operation.
Shock loading shall be avoided.
Operation Below -40°C
For crane operation below -40°C, capacities shall be derated
3.67 percent of the rated load shown on the capacity charts
for each degree below -40°C.
Operation Below -40°F
For crane operation below -40°F, capacities shall be derated
2 percent of the rated load shown on the capacity charts for
each degree below -40°F.
CRANE WARM-UP PROCEDURES
The following procedures detail the actions that must be
taken to properly warm the different crane components
before operating the crane.
NOTE:
For temperatures below -9°C (15°F) refer to arctic
lubricants and conditions in the Operator and
Service Manuals.
Before starting the crane, ensure the appropriate lubricants
are used to provide lubrication for the prevailing ambient
temperatures in which the crane will operate in (a list of
lubricants and their temperature ranges can be found in the
Lubrication section of your crane’s
Operator Manual
, by
contacting your local National Crane distributor, or by
contacting Manitowoc Crane Care directly).
Engine
NOTE:
For National Crane engine warm-up procedures,
refer to chassis manufacturer’s manual.
CAUTION
Crane Damage Hazard!
Operating the crane with the incorrect lubricants and
fluids for the prevailing ambient temperature and/or failing
to adequately warm the crane prior to cold weather
operation can lead to a failure of a crane component or
system.
Always use National Crane recommended lubricants and
fluids for the prevailing ambient temperature and properly
start and warm the crane using the cold weather
p r o c e du r e s f o u n d i n t h i s O p e r a t o r M an u a l a n d
supplement before operating the crane at full load.
Fo
r
Reference
Only
Содержание National Crane 600E-2
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