Zoomlion QY30V, Руководство пользователя

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09 - 3 09 - 3
D i a g n o s t i c s D i a g n o s t i c s
9.2.2 Transmission 9.2.2 Transmission
Problem Causes Remedy Problem Causes Remedy
Throw-out of Throw-out of
gear occurs in
gear occurs in
the main
the main
transmission.
transmission.
The input shaft of transmission and the guide The input shaft of transmission and the guide
bearing inside the engine flywheel are not
bearing inside the engine flywheel are not
concentrically installed.
concentrically installed.
Check and Check and
replace
replace
Gears collide violently during gearshift, thus Gears collide violently during gearshift, thus
causing engaging gear end surfaces to wear.
causing engaging gear end surfaces to wear.
Check and Check and
replace
replace
Engaging gear has been worn to the shape of Engaging gear has been worn to the shape of
pyramid.
pyramid.
Check and Check and
replace
replace
Locking spring weakened or damaged, causing Locking spring weakened or damaged, causing
pressure on the positioning steel ball of fork shaft
pressure on the positioning steel ball of fork shaft
insufficient.
insufficient.
Check and Check and
replace
replace
Positioning groove of fork shaft has reached wear Positioning groove of fork shaft has reached wear
limit.
limit.
Check and Check and
replace
replace
Connecting rod of gearshift mechanism is Connecting rod of gearshift mechanism is
improperly adjusted, thus causing engaging gear
improperly adjusted, thus causing engaging gear
and sliding sleeve not to engage in the whole
and sliding sleeve not to engage in the whole
length.
length.
Adjust or replace Adjust or replace
Throw-out of gear occurs after decelerating when Throw-out of gear occurs after decelerating when
the vehicle is driving in full-power or
the vehicle is driving in full-power or when it is when it is
pushed by outside force. pushed by outside force.
Operate correctly Operate correctly
In off-road driving conditions, the range selector In off-road driving conditions, the range selector
will swing leftwards and rightwards. When locking will swing leftwards and rightwards. When locking
spring force is overcome, throw-out of gears
spring force is overcome, throw-out of gears
occurs.
occurs.
Adjust tightness Adjust tightness
of gearshift of gearshift
control
control
mechanism
mechanism
Throw-out of Throw-out of
gear occurs in gear occurs in
the auxiliary the auxiliary
transmission.
transmission.
Collision Collision occurs occurs during during gearshift. gearshift. Operate Operate correctly correctly
Normal Normal wear wear after after a a long long period period of of operation. operation. Replace Replace
Propeller shaft is not properly installed, or Propeller shaft is not properly installed, or
vibration occurs caused by balance block falling vibration occurs caused by balance block falling
off. off.
Check, adjust and Check, adjust and
replace replace
Air line system pressure is not sufficient. Air line system pressure is not sufficient.
Check and Check and
replace
replace
high-pressure
high-pressure
valve
valve
It is difficult to It is difficult to
hift hift
Connecting fork or bushing in the connecting rod Connecting fork or bushing in the connecting rod
of gearshift mechanism wears, or is
of gearshift mechanism wears, or is improperly improperly
engaged, adjusted and poorly lubricated. engaged, adjusted and poorly lubricated.
Check, adjust, Check, adjust,
replace and
replace and
lubricate
lubricate
Main shaft distortion, and fork or main shaft spline Main shaft distortion, and fork or main shaft spline
bending make spline of the 2
bending make spline of the 2
nd nd
shaft sliding shaft sliding
sleeve or synchronizing gear sleeve is engaged sleeve or synchronizing gear sleeve is engaged
on the main shaft.
on the main shaft.
Replace and Replace and
lubricate
lubricate