SCHUNK WBL 85 Balfour Beatty, Руководство по эксплуатации и обслуживанию

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Exchange bellow cylinder;
find reason for leakage and
check bellow joints.
Exchange pressure regulator.
Exchange pressure
regulator.
Replace valve
Replace restrictoror
Replace air hose
Replace signal horn
Check contact force and
re-adjust setting
Adjust setting of valve
Re-adjust setting
Find cause of excessive
friction and replace
defective component
Replace bearings. Check
pan levers for deformation
and replace if necessary.
Bellow cylinder leaking.
Pressure-regulator defective
(normal air leakage of pressure
regulator = 0,5 l / min.).
Pressure regulator
defective.
Monitoring valve on pan
defective
Restrictor in compressed
air line defective
Compressed air line
defective
Signal horn defective
Contact force incorrectly
set.
Monitoring valve on pan
poorly set
Pan head spring stop
incorrectly set
Excessive inner friction of
pantograph
Pan lever bearings are
stiff.
Excessive air leakage.
Increase of contact
pressure without previous
adjustment of pressure
regulator.
Signal horn for contact
force monitoring does not
sound during raising or
lowering.
Signal horn sounds while
pantograph in operation
(on catenary)
Defect Reason(s) Correction
Troubleshooting
Single Arm Pantograph WBL 85 Balfour Beatty
Page 19 WBL 85-15kV