Maintenance 3H50, 4H50
76
HATZ
Manual
Symbol Maintenance in-
terval
Maintenance step/check Section
When indicated,
at least every
2years
Drain the water separator
1)
8.2.12 Draining
the water separa-
tor, page 105
Every 4years Change the coolant 8.2.16 Changing
coolant, page 113
If necessary, but
every 3,000 oper-
ating hours at the
latest
Replace the poly-V-belts 8.2.9 Replacing
the poly v belts,
page 99
Every 4,000 oper-
ating hours
Clean the exhaust return
(AGR)(To be carried out by a
trained specialist)
1)
Maintenance according to maintenance interval or after 2years depending
on which criterion occurs first.
2
) The secondary filter must be replaced after every fifth replacement of the
primary filter, though no later than every two years.
8.2.2 Additional work on the Silent Pack
Safety notes
WARNING
Danger of injury from rotating parts.
Touching the fans or poly v belts can lead to serious injury when
the engine is running.
▪ Only operate the engine when all covers are installed.
CAUTION
Danger of burns.
There is a danger of burns when working on a hot engine.
▪ Let the engine cool.
▪ Wear safety gloves.