Timberwolf TW 230HB (Diesel), Instruction Manual, Page: 45 / 62

C190-0302 - Rev 1.0 EN 43/59
6.9 Adjust Rotor Drive Belt Tension
There will normally be a rapid drop in tension during the run-in period for new belts.
When new belts are fitted, check the tension every 2 - 3 hours and adjust until the
tension remains constant.
Too much tension shortens belt and bearing life.
Too little tension will cause poor performance, especially in respect of no-stress
devices.
Belt failures due to lack of correct tensioning will not be covered under your
Timberwolf warranty.
1. Remove the engine bay side panel.
Figure 22 - Tensioner Pulley Assembly
2. Use a 19 mm spanner to loosen the bolt in the
centre of the tensioner pulley until the pulley is
able to slide with minimal wobble (Figure 22,
Item 1).
3. Turn the nut on the end of the tensioner pulley
slider until the correct belt tension is achieved
(Figure 22, Item 2). (Refer to Section 6.10 "
V-
Belt Tensioning Procedure" on page 44.)
4. Tighten the bolt in the centre of the tensioner
pulley.
5. Run the machine then re- check the belt
tension.
6 Maintenance Instructions TW 230HB (Diesel)