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MAINTENANCE
ARBUS 400 Belt tension
Fan belt (0.39 to 0.59 in)
• Loosen the four screws (2) and two nuts
(3).
• Tighten by hand at the same time the two
knobs (4) until obtaining the recommen-
ded tension.
• Retighten the nuts (3) and screws (2).
Pump belt (0.15 to 0.27 in)
• Loosen the four screws (A) on the pump base.
• Turn the tension screw (B) to move the pump
and obtain the recommended tension.
• Retighten the four screws (A).
ATTENTION!
Always stop the sprayer and turn
off the tractor egine before any
kind of maintenance.
4
4
3
2
2
3
2
2
A
A
B
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