Troubleshooting
Section 7 Page 5
MOBILE DEMOLITION PROCESSORS
SYMPTOM
PROBABLE CAUSE
REMEDY
1. Attachment will not
rotate
a. Operating flow is too low
b. Crossover relief valve is bypassing oil
c. Operating pressure is too low
d. System hydraulic fluid
e. Broken output shaft drive
f. Internal leakage in manifold block on
motor
g. Excessive wear on motor rotating
components
h. Speed reducer gearbox shaft broken
i. Internal leakage in valve supplying oil
j. Valve supplying hydraulic flow is faulty
i. Flow control valve needs adjustment
ii. Check supply flow
i. Replace crossover relief valve
i. Check crossover relief valve
ii. Check supply pressure
i. Check base machine hydraulic system tempera-
ture excessively high
i. Replace ore rebuild the hydraulic motor
i. Replace manifold block on motor
ii. Check cartridge valve seals for damage
i. Replace or reseal the hydraulic motor
ii. To check this remove the case drain line and mea-
sure the amount of flow out of the case
i. Rebuild or replace the gearbox
i. Check base machine hydraulic system
i. Check base machine hydraulic system
2. Rotation is excessively
slow
a. Operating pressure too low
b. Operating flow is too low
c. Crossover relief valve bypassing oil
d. Operating flow is too low
e. Internal leakage in manifold block on
motor
f. Motor is worn out
i. Replace crossover relief valve to increase pressure
i. Flow control valve needs adjustment
ii. Check supply flow
i. Replace crossover relief valve
i. Adjust control to increase flow to rotation group
i. Replace manifold block on motor
ii. Check cartridge valve seals for damage
i. Rebuild or replace the motor
The information contained in this guide provides for troubleshooting the LaBounty attachment only. Any references
to the base machine are made only to give some guidance as to where a problem may exist. Any specific mainte-
nance and/or troubleshooting information will need to be provided by the base machine original equipment manu-
facturer or authorized dealer.
ROTATION CIRCUIT TROUBLESHOOTING GUIDE
Содержание 513914
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