Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

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U-WAVE, Radio remote control device, (Option)
6.
◆
How to reset when in trouble with
automatic stop for overwinding
7.
◆
How to operate when engine
speed becomes unstable due to
low temperature
Automatic stop for
over-winding reset switch
Reset
Speed lever
Slewing C.C.W./C.W. switch
Store hook switch
In case where operation of “hook Up”,
“boom Extend”, and “boom Up” becomes
impossible due to trouble with automatic stop
for over-winding, operate it with the automat-
ic stop switch for overwinding on the crane
side put to “Reset”.
This allows operation of “hook Up”, “boom
Extend”, and “boom Up” to be possible.
1. Switching to low temperature
operation mode
When in winter season or when temperature
is too low, the engine speed may become
unstable as viscosity of hydraulic oil increas-
es.
In this case, switch the system to “low tem-
perature operation mode” to allow the engine
speed to be stable.
Depress the “store hook” switch with the
“swing C.C.W./C.W.” switch turned to
“C.C.W.”.
Indication of the “mode indicator lamp”
changes to [
], and voice message,
“Ping-pong, Change control mode,
Change control mode”, is issued.
(Indication will not change if the “mode
indicator lamp” is showing [
], [ ],
or [ ].)
Remarks
When switching it to low temperature opera-
tion mode, operation of the “store hook”
switch before the “swing C.C.W./C.W.”
selector switch has been actuated may allow
voice message,
“Ping-pong, Secure lifting
hook, Secure lifting hook” , to be issued.