Hatz 2-4L41C - Renewing the Poly V Belt and Checking the Function of the Switch-Off Unit

2-4L41C, 2-4M41(Z), 4L42C, 4M42 Maintenance
HATZ
93Manual
Step Activity
5 If there is no reaction, check the following:
▪ Electrical part; cable connections, etc.
▪ Indicator
▪ Function of the maintenance switch.
Mechanical air filter maintenance display
4 Generate a vacuum by sucking forcefully at the hose end.
The red field (1) engages.
5 After the function test, unlock the red field (1) by pressing the re-
set button (2).
After the function test
6 Replace the faulty parts.
7 Reattach the hose (3) of the exhaust manifold.
8 Mount the capsule and air guide parts again.
8.2.17 Renewing the poly v belt and checking the function of the switch-off
unit
NOTICE
i
When changing the belt:
▪ Always check the function of the switch-off unit. The switch-
off pin must emerge by spring force, or else the machine will
not switch off automatically if the belt tears.
▪ If the grooves are broken off or bent, renew the damaged
pulley.
▪ To be absolutely sure that you order the right poly v belt – in
terms of the length – it is recommended that you measure
the diameter of the fan-side pulley and use this as the basis
for your selection.
Belt types
Because of the different diameters of the fan-side pulleys, in combination
with different engine types and versions, various lengths of poly v belts are
used.
Type and engine
version
ID number Belt length mm Fan pulley
Ømm
2L41C 502 031 00 920 72
All remaining types
and versions
501 415 00 910 64