Dynapac Hatz F80W, Workshop Manual

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165 F80W
451135
1
2
30-40 mm (1,2-1,6 in)
451200
1
451134
4 5
WORKSHOP MANUAL
14�4 Setting the belt conveyor chain sag
Calculate the sag of the conveyor chain by measuring the dis-
tance between the ground and the left conveyor chain (1) or the
right conveyor chain (2), always in the central part of the chain.
The chain is correctly tensioned when there is an approx.
30 – 40 mm sag (1.2 – 1.6 in) in the middle.
Chain sag calculation procedure:
• The procedure is identical for the left (1) and right (2) con-
veyor chain.
• Measuring the distance between the ground and the chain
in the middle part of the chain (1).
• Press the chain upwards in the middle part of the chain (1)
and measure the distance between the ground and the
chain again.
• Calculate the sag of the chain (1) by deducting the two
measured values.
• The chain is correctly tensioned when there is an approx.
30 – 40 mm sag (1.2 – 1.6 in) in the middle.
Chain tensioning procedure:
• The procedure is identical for the left (1) and right (2) con-
veyor chain.
• Loosen the lock nut (4).
• Tension the chain using the adjusting nut (5).
• Calculate the sag of the chain (1) by deducting the two
measured values according to the procedure above.
• If the calculated sag is in the range of 30 – 40 mm (1.2 – 1.6 in),
tighten the lock nut (4).
• Tension the chain equally on both sides of the machine.
Note
In case of too high chain tension, loosen the lock nut (4) and the
adjusting nut (5).
Calculate the sag of the chain (1) by deducting the two meas-
ured values according to the procedure above.