Vetus D-LINE VD4.120 Operation Manual page 63

6 Maintenance
1
35 Tensioning the V-belt of the coolant
and fuel pumps
• Unscrew the bolts (1) and (2).
• Turn the fuel pump tensioner in the direc-
tion of the arrow, using a square 1/2" key
(a), until the tension of the belt is correct.
• Tighten the bolts (1) and (2).
2
36 Tensioning V-belt
• Unscrew the mounting bracket bolts and
both of the alternator mounting bolts. Now
push the alternator outwards until the belt
has the desired tension.
• Tighten the bolts in the order shown.
1
37 Reinstall the protection cover
• Always reinstall the V-belt cover and tigh-
ten the screws.
Checking the V-belts
Every 500 operating hours.
61