Change the toothed belt, Check the injection nozzles, Maintenance every 3000 hours – Holder C-Trac 4.74 User Manual
Page 188: C 4.74, Operating instructions

Operating instructions
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187
C 4.74
Maintenance every 3000 hours
Check the injection nozzles
ATTENTION
This work may only be carried out by an au-
thorized workshop.
-
Clean the injection nozzles.
-
Check the injection nozzles with a test pressure of
250 +8 bar.
Change the toothed belt
Change every 3000 hours or 5 years maximum.
See maintenance instructions of the engine manufacturer.
ATTENTION
This work may only be carried out by an au-
thorized workshop.
-
Remove the left-hand cover of the toothed belt drive.
-
Check the toothed belt for cracks over its entire length.
-
Replace damaged toothed belts.
NOTE
When replacing the toothed belt, also replace
the idler pulley.