Timberwolf TW 280TDHB, Instruction Manual

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TW 280TDHB/(a)
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V-BELT TENSIONING TABLE
C190-0142 01.03.2019 Rev: 2.0
METHOD:
Set the deflection distance on the lower scale of the tension gauge so that the underside of the 'o'-ring equals 1
the 'h' value given in the table.
Ensure that the deflection force scale is zero'd by pushing the upper 'o'-ring all the way down. 2
Place the tension gauge in the centre of the belt span as shown in the diagram. 3
Press downwards on the rubber buffer, deflecting the belt until the underside of the lower 'o'-ring is level with 4
the belt behind (use a straight edge if there is only 1 belt).
Take the reading from the deflection scale of the tension meter (read at the lower edge of the 'o'-ring) & 5
compare this value with that given in the table.
Tighten or loosen belts as required following procedure given in this operator's manual. 6
Tension gauges are available from Timberwolf spares, quoting part no. 18091
Rotor Pulley
Engine Pulley
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.
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! •
280TDHB/(a) Rotor Belts
Belt Mffr / Type Gates Super HC-MN
Belt Pitch Designation SPB
Belt Length in mm 1600
Belt Deflection in mm = h 3.9
Force Reading (Kg)
New belt 2.6 - 2.8
Used Belt 2.2 - 2.4