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09 - 20
09 - 20
Buzzer does not
Buzzer does not
work.
work.
Fuse
Fuse burnt
burnt out.
out.
Rectify
Rectify and
and replace
replace
Relay
Relay defects.
defects.
Replace
Replace
Conducting
Conducting wire
wire defects.
defects.
Rectify
Rectify
Buzzer
Buzzer defects.
defects.
Replace
Replace
D i a g n o s t i c s
D i a g n o s t i c s
Problem
Causes
Remedy
Problem
Causes
Remedy
No power supply
No power supply
to the
to the
superstructure.
superstructure.
Circuit
Circuit of
of conducting
conducting ring
ring broken.
broken.
Rectify
Rectify or
or replace
replace
PTO
PTO signal
signal switch
switch damaged.
damaged.
Replace
Replace
Conducting
Conducting wire
wire defects.
defects.
Rectify
Rectify
The engine cannot
The engine cannot
be started in
be started in
operator’s cab.
operator’s cab.
Circuit
Circuit breaker
breaker burnt
burnt out
out or
or loose.
loose.
Rectify
Rectify or
or replace
replace
Conducting
Conducting wire
wire defects.
defects.
Rectify
Rectify
Ignition
Ignition starter
starter switch
switch damaged.
damaged.
Replace
Replace
Circuit
Circuit of
of conducting
conducting ring
ring broken.
broken.
Rectify
Rectify or
or replace
replace
No crane
No crane
movement can be
movement can be
initiated.
initiated.
Emergency
Emergency off
off switch
switch damaged.
damaged.
Rectify
Rectify or
or replace
replace
Deadman switches on the joysticks is not
Deadman switches on the joysticks is not
pressed.
pressed.
Rectify or replace
Rectify or replace
Conducting
Conducting wire
wire broken.
broken.
Rectify
Rectify
Solenoid
Solenoid valve
valve invalid.
invalid.
Rectify
Rectify or
or replace
replace
Hoisting limit
Hoisting limit
switch does not
switch does not
work.
work.
Hoisting
Hoisting limit
limit switch
switch invalid.
invalid.
Replace
Replace
Cable
Cable reel
reel short-circuited.
short-circuited.
Rectify
Rectify
Relay
Relay defects.
defects.
Replace
Replace
Conducting
Conducting wire
wire defects.
defects.
Replace
Replace
Solenoid
Solenoid valve
valve invalid.
invalid.
Rectify
Rectify or
or replace
replace
Lowering limit
Lowering limit
switch does not
switch does not
work.
work.
Lowering
Lowering limit
limit switch
switch invalid.
invalid.
Rectify
Rectify or
or replace
replace
Relay
Relay defects.
defects.
Replace
Replace
Conducting
Conducting wire
wire defects.
defects.
Replace
Replace
Solenoid
Solenoid valve
valve invalid.
invalid.
Rectify
Rectify or
or replace
replace
Содержание QY30V
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Страница 144: ...04 49 04 49 Operation crane superstructure Operation crane superstructure Fig 04 40 Fig 04 40...
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Страница 242: ...08 39 08 39 M60 M60 66 66 1008 1008 1418 1418...
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