Atlas Copco LPD-RV Manual de instruções do operador - Página 9

Procurar online ou descarregar pdf Manual de instruções do operador para Ferramentas Atlas Copco LPD-RV. Atlas Copco LPD-RV 10 páginas. Hydraulic post driver

Atlas Copco LPD-RV Manual de instruções do operador

Fault finding

WARNING
Maintenance must be done only by suitable qualified and competent persons.
Symptom
Post driver fails to operate.
LPD lacks striking power.
LPD runs slow
LPD runs hot.
Any unauthorized use or copying of the c ontents or any part thereof is prohi bited.T his applies in particular to trademar ks, model
denomi nati ons, part numbers and drawings.
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Possible fault
No flow f rom supply.
Hoses incorrectly fitted.
Insufficient mov ement of trigger v alve.
Main spool jammed or damaged.
Striker piston seized
Insufficient av ailable pressure.
Low accumulator gas pressure
(Normally associated with v iolent
shaking of hoses).
Stopping bush in nose casting loose.
Insufficient flow
Cold oil.
High return line back pressure.
Incorrect oil
Q.R. coupling def ect
Inadequate cooling of hy draulic oil.
Remedy
Check output with f low and
pressure tester.
Check that pressure feed is
connected to P port on the LPD.
Adjust trigger lev er or replace def ect
points.
Remov e and check.
Clean all associated parts.
Remove and check f or 'pick-up'
on piston f eeder or barrel.
Replace any damaged parts.
Check Main Relief Valv e.
Re-charge the accumulator – refer to
Serv ice Manual.
Apply Loctite 648 and press back.
Check that the flow rate is correct.
Warm up the oil supply.
Optimum temperature 20–70°C
(68–158° F).
Check return line back-pressure.
Pressure should not exceed 10 bar.
Use only Hydraulic Oil according to
spec.
Locate and replace defect coupling.
Check oil supply has adequate
cooling. Temperature should not
O
O
exceed 80
C (176
F).
English
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