Page 9
Publication 4991460001 (May 2000)
Fit the wedge-belts over the pulleys, loosen the two M10 setscrews which were tightened,
and slide the outer arm away from the compressor so the wedge-belts are not slack.
Tighten all M10 capscrews (4
)
holding the outer arm to the inner arm to 40 Nm.
NOTE :
The wedge-belts are not under tension at this stage.Use a straight edge
check the parallelism of both shafts as follows:
Using the front face of the driver pulley as a base reference, place the straight edge so it sits
flat against the full faces of the two pulleys.If the straight edge does not touch on both sides of
each pulley, the shafts are not parallel.
Alter the bearing housing shaft to a parallel condition by adjusting the two M10 bolts
behind the outer arm (inset fig 6) slightly bending the belt arm. Re-tighten to 52.5 Nm.
Re-check alignment until the compressor pulley touches the straight edge across the full face
of each pulley. It may be necessary to re-align the Power Take Off end pulley by sliding it
backwards or forwards on the shaft extension collar after loosening the taper lock bush.
Re-check the pulley alignment.
Re-adjust if necessary.
Tighten the tension belts as follows :
Loosen the M10 setscrews (4) clamping the inner arm to the outer arm and then tighten
fingertight.
Using the M16 tensioning bolt (5), apply tension to the wedge-belts and using a belt tension
indicator (Drum Part No. 648.20.00.000-2), apply the correct tension
(as shown in table fig
7)
at the mid-point of distance
("C")
with force
("F")
applied perpendicularly to the belt, which
at the correct tension
(shown in Table fig 7)
should displace the belt by distance
("D")
Tighten the M10 setscrews holding the inner arm to the outer arm, to 40 Nm.
Re-check the alignment of the pulleys and if necessary, readjust the bolts
behind the outer arm to bring the pulley faces back into alignment.
Re-check the belt tension and adjust if necessary.
Re-tension the wedge-belts after 30 minutes running time and check tightness of all fastenings.
Fit Cover(6) to Belt arm assembly. (Refer Page 10 and Fig 8 for fitting instructions )
Содержание DRUM D9000
Страница 2: ...QUA Doc 1023 Issue 1 26 01 2010...
