Troubleshooting; General Information; Fault Table - Ammann APR 4920 Mode D'emploi Original

10. Troubleshooting

10.0.1 General information

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Ob serve the safety in for ma tion
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Only qual i fied and authorised per sons may carry out re -
pair work (me chan ics spe cial is ing in con struc tion and
ag ri cul tural ma chin ery).
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In case of faults, the op er at ing and main te nance in struc -
tions must be re ferred to for cor rect op er a tion and main -
te nance.

10.0.2 Fault table

Pos si ble cau se
En gi ne does not start
Speed con trol le ver in «STOP»-po si ti on
No fuel
– Tank run dry
– Fuel fil ter blo cked
– De fec ti ve feed pump
Oil pres su re lost
Com pres si on too low
En gi ne stops by it self du ring re gu lar ope ra ti on
Fuel supp ly is in ter rup ted
– Tank run dry
– Fuel fil ter blo cked
– De fec ti ve feed pump
Oil pres su re lost
Me cha ni cal de fects
Re du ced en gi ne per for man ce
Fuel supp ly is ob struc ted
– Tank run dry
– Fuel fil ter blo cked
– Tank ven ting is ina de qua te
– Le aks at pi pes unions
Air clea ner blo cked
In cor rect val ve clea ran ce
Too much oil in en gi ne
Too much oil in ex ci ter
De fault in hyd rau lic sys tem
En gi ne runs, ma chi ne does not move for ward
In suf fi cient V-belt ten si on
V-belt bro ken
Cen tri fu gal clutch li ning worn
Too much oil in ex ci ter
De fault in hyd rau lic sys tem
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Re me dy
Set le ver to «START»-po si ti on
Add fuel
Re new fuel fil ter
Functi on must be che cked
Check en gi ne oil le vel
Con tact a Am mann-ser vi ce sta ti on
Add fuel
Re new fuel fil ter
Functi on must be che cked
Check en gi ne oil le vel
Con tact a Am mann-ser vi ce sta ti on
Add fuel
Re new fuel fil ter
En su re that tank is ade qua te ly ven ted
Check threa ded pipe unions
Re mo ve dirt from air clea ner
Ad just val ve clea ran ce
Drain off en gi ne oil down to up per mark on
dip stick
Check ex ci ter oil le vel
Con tact a Am mann-ser vi ce sta ti on
Re ten ti on V-belt
Re pla ce V-belt
Re pla ce li nings and springs
Check ex ci ter oil le vel
Con tact a Am mann-ser vi ce sta ti on
69
If the cause of the fault can not be lo cated or rem e died, an
authorised Ammann Ser vice Cen tre should be con tacted.
Al ways first check the most likely causes (fuses, LEDs,
etc.).
Re marks
Con tact a Am mann-ser vi ce sta ti on