HATZ Diesel 4M42 - Manual (Page 89)

8.2.16 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
Removing the poly v belt
Overview
2-4L41C, 2-4M41, 2-4M41Z, 4L42C, 4M42 Maintenance
HATZ Operator's Manual 89