Furukawa Unic URW376C4U -T Series, Руководство по эксплуатации и техническому обслуживанию

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5-2
DESCRIPTION OF CRANE EQUIPMENT
1
. Boom
It extends and retracts by hydraulic cylinder
and the hook is suspended from its top.
2
. Column
This is a vertically mounted member on the
crane in which boom, winch, and derrick cyl-
inders are installed.
The column can be turned by slewing device.
12.
Overwinding alarm
When the hook comes close to the boom top,
this makes an alarm to warn that wire ropes
are to be overwound.
3
. Frame
This is fixed on the vehicle to support the col-
umn and outriggers.
4
. Hoist winch
This is a device which rotates the wire drum
by hydraulic motor to hoist up and down a
cargo via wire ropes.
5
. Slewing device
This turns the column by hydraulic motor.
6
. Derrick cylinder
This raises and lower the boom.
7
. Telescoping cylinder
This extends and retracts sections of boom.
8
. Outrigger
This supports the crane to maintain its stabil-
ity while it is operated.
9
. Crane operating levers
Respective levers control raising and lower-
ing boom, hoisting a cargo up and down, tele-
scoping boom, and slewing boom.
10.
Outrigger operating levers
This lever controls outriggers.
The outrigger control levers selects each
movement of extension and retraction.
11.
Hook
13.
Wire rope
16.
Level
This an instrument for checking horizontal
plane of the crane body.
17.
Alarm switch
This switches ON and OFF the overwinding
alarm.
18.
Operation mode switch
This selects crane operation mode and outrig-
ger operation mode.
14.
Boom angle chart
This can read the working radius value corre-
sponding to extended length of the boom and
its raised angle.
15.
Automatic stop for leaving mini-
mum wire rope (With wire rope
retaining roller)
This is a devise to restrict slackening of
wire rope on the drum which allows to stop
unwinding automatically when remaining
wire ropes on the drum come close to 3 turns.
19.
Turn over prevention device
This detects load against ground from outrig-
gers.
21.
Emergency stop (engine) switch
Depression of the switch allows the engine
to stop and all the crane operation including
traveling stop functioning.
20.
Horn switch
Depression of the switch allows the alarm
horn to sound.