V-Belt Tensioning Table - Timberwolf TW 280TDHB Manuel Opérateur

V-BELT TENSIONING TABLE

METHOD:
1 Set the deflection distance on the lower scale of the tension gauge so that the underside of the 'o'-ring equals
the 'h' value given in the table.
2 Ensure that the deflection force scale is zero'd by pushing the upper 'o'-ring all the way down.
3 Place the tension gauge in the centre of the belt span as shown in the diagram.
4 Press downwards on the rubber buffer, deflecting the belt until the underside of the lower 'o'-ring is level with
the belt behind (use a straight edge if there is only 1 belt).
5 Take the reading from the deflection scale of the tension meter (read at the lower edge of the 'o'-ring) &
compare this value with that given in the table.
6 Tighten or loosen belts as required following procedure given in this operator's manual.
Belt Tensioner
TIPS ON BELT TIGHTENING:
• 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 & adjust until
the tension remains constant.
• The best tension for V-belt drives is the lowest tension
at which the belts do not slip or ratchet under the
highest load condition.
C190-0142
Tension gauges are available from Timberwolf spares, quoting part no. 18091
Rotor Pulley
280TDHB/(a)
Belt Mffr / Type
Belt Pitch Designation
Belt Length in mm
Belt Deflection in mm
Force Reading (Kg)
31 / 65
Engine Pulley
Rotor Belts
Gates Super HC-MN
SPB
1600
= h 3.9
New belt 2.6 - 2.8
Used Belt 2.2 - 2.4
• Too much tension shortens belt & bearing life.
• Too little tension will affect the performance of your
machine especially in respect of no-stress devices.
• Ensure that belt drives are kept free of any foreign
materials.
• If a belt slips - tighten it!
01.03.2019
TW 280TDHB/(a)
Rev: 2.0