si2040w0003a

Service Information: Repairs to fan drive

Tip si · temă 20.40 · versiune 0101 · 2003-06-17

Valabil pentru: ENGINE 541.9 in MODEL 950, 952, 953, 954 ENGINE 542.9 in MODEL 950, 952, 954

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Încadrare

Grupă funcțională 1 Motor › 20 Răcire motor › 20.40 Ventilator, cuplaj ventilator — Seria 950 · Seria 952 · Seria 953 · Seria 954

EinPAS 15 Motor › 15.25 Sistem răcire motor › 15.25.45 Ventilator/Cuplaj ventilator/Acționare ventilator — Seria 950 · Seria 952 · Seria 953 · Seria 954

EinPAS 45 Date/Informaţie › 45.20 Informaţie/Măsuri › 45.20.20 Informaţie service — Seria 950 · Seria 952 · Seria 953 · Seria 954

Valabil și pentru motoare/cutii de viteze: 541 9**, 542 9**

SI20.40-W-0003A

Service Information: Repairs to fan drive

ENGINE 541.9 in MODEL 950, 952, 953, 954

ENGINE 542.9 in MODEL 950, 952, 954

Modification notes

19.12.00

Replaces STIN No. 20.40W004 dated 20.12.00

As part of our product controlling we have ascertained that fan drives are sometimes submitted with the wrong damage code.

For this reason we have extended the damage codes and revised the illustrations.

The following damage codes are to be used for fan drives:

damage code 20 301 for viscous fan clutches

damage code 20 302 for electromagnetic fan clutches

damage code 20 304 for planetary gear fan clutches

The damage codes for the remaining parts, as listed in the damage code list, retain their validity.

In this context we would like to point out that in order to optimize fuel consumption, the electromagnetic fan clutches are activated later than the viscous fan clutches and that slightly higher engine temperatures may thus be reached.

Engine temperature may indeed frequently lie at 100 C̊; this however is safe for the engine and thus does not justify any replacement of an electromagnetic fan clutch.