126
3.10 CAUTIONS BEFORE CRANE OPERATION
Unless these precautions before work are observed, serious physical injury may be caused.
• Be sure to select a level place and stop the machine
there before performing work.
After stopping the machine, check a level with a levelling
instrument.
In the moment limiter, the moment is calculated on the
assumption that the machine is placed horizontally. If
work is performed without the machine being placed
horizontally, no forecast or warning is issued even when
the dangerous range is approached.
• Precisely set the moment limiter in line with the crane
work. The moment limiter calculates the moment based
on the set switch. If setting different from actual work is
made, the wire rope may be cut or the boom may be
damaged, leading to serious physical injury.
Example of erroneous settings:
• Number of wire rope falls in actual work: Two falls
• Number of wire rope falls in set switch: Four falls
If the setting is made as shown above, the moment
limiter calculated a load as a state of “wire rope four
falls”. Therefore, even if overload is approached, the
moment limiter issues no forecast or warning.
As a result, the wire rope is in danger of being cut when
the actual gross total load exceeds the range of “two
falls”.
• When the hook block is over-hoisted, the over-hoisting
prevention device is activated, the warning buzzer sounds
and the operation stops.
When the warning buzzer sounds, release your hand
immediately from the right work equipment operation lever
and place it at the neutral position to stop raising the hook.
After that, operate the right work equipment operation
lever to the “Lower” side (push forward) and lower the
hook block.
Содержание CC423S-1
Страница 2: ......
Страница 8: ...vi This Page Intentionally Left Blank...
Страница 22: ...14 This Page Intentionally Left Blank...
Страница 56: ...48 SAFETY LABEL LOCATIONS 2 2...
Страница 59: ...51 24 Machine Mass 542 4773100 28 Working Radius Rated Total Load Chart 542 3582200...
Страница 60: ...52 30 Safe Operation 557 3494500 31 Operating the Moment Limiter 542 2250000...
Страница 194: ...186 This Page Intentionally Left Blank...
Страница 232: ...224...
Страница 248: ...240 This Page Intentionally Left Blank...
Страница 251: ...243 2 SPECIFICATION DIMENSIONAL DRAWING...
Страница 255: ...247 4 WORKING RADIUS LIFTING HEIGHT 4 Fall Wire Rope...
Страница 256: ...248 This Page Intentionally Left Blank...
Страница 262: ...254 3 MONITOR INDICATION 1 Searcher hook selector switch 2 Searcher hook position display...
Страница 276: ......
Страница 277: ......
Страница 278: ......