48
TROUBLESHOOTING
https://www.agrotkindustrial.com
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Symptom
Possible causes
How to solve
The right and left
traveling systems do not
move (no other
abnormalities)
Central rotation connector is damaged.
Change the oil seal and change
the groove if it is damaged
The high pressure chamber and low
pressure chamber of traveling operation
valve is connected.
Change
Serious leak inside the traveling
operation valve
Change
Low overloaded pressure of traveling
valve of main valve or the valve rod is
stuck.
Adjust and grind
The left and right traveling reducers fail
Repair
The left and right traveling motors fail
Repair
The oil pipe explodes
Change
Deviation during
traveling (no other
abnormalities)
Wrong adjustment of variable point of
main valve or serious internal leak of a
pump
Adjust or repair
Internal or external spring of one
traveling valve core of main valve is
damaged or tightened
Change
The traveling motor leaks inside due to
abrasion.
Repair or change
The sealing component of central
rotation connector is aged and
damaged.
Change the sealing component
The left and right crawlers are of
different tightening.
Adjust
Boom (bucket rod and
bucket) move to one
direction only.
Main valve core is stuck or valve rod
spring breaks.
Repair or change
Boom (bucket rod and
bucket) does not move.
Boom valve rod is stuck or of low
overloaded pressure
Repair
Fuel supply pipe leaks, detached, O
ring, damaged or pipe fitting is loose
Change the damaged
component
Sandstone in main valve or the low
pressure chamber is connected to the
high pressure chamber
Change
