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Maintenance
Washing the gearbox
1. The gearbox should be washed at least once a year as follows:
2. Drain the oil from the gearbox.
3. Remove the gearbox cover.
4. Wash the gearbox using suitable solvents.
5. Put in the lubricating oil.
6. Put back the gearbox cover.
Replacing the central toothed wheel
1. Unscrew the screws and remove the gearbox cover.
2. Unscrew the screws and remove the front cover and the back cover;
3. Slip out the central splined shaft by hitting the back with a drift and a hammer until the shaft comes out.
4. Remove the central toothed wheel to be replaced.
5.
Slip the central splined shaft into the gearbox by hitting the front with a drift and a hammer and fitting the new
toothed wheel to the shaft.
6. Fix on the front cover with the screws.
7. Fit the bearing at the back.
8. Fix on the back cover with the screws.
9. Fix on the gearbox cover with the screws.
Replacing the central splined shaft
1. Unscrew the screws and remove the gearbox cover.
2. Unscrew the screws and remove the front cover and the back cover.
3. Slip out the central splined shaft to be replaced by hitting the back with a drift and a hammer until the shaft comes
out.
4. Remove the central toothed wheel on the shaft.
5. Extract the shaft from the front cover and replace it.
6.
Put the cover on the new shaft, insert the assembly in the gearbox, and fit the toothed wheel to the shaft.
7. Fix on the front cover with the screws.
8. Fit the bearing at the back;
9. Fix on the back cover with the screws.
10. Fix on the gearbox cover with the screws.
Replacing the mechanical seal
1. Insert item (A) in the seat of the volute support with the
wider part facing outwards and push it as far as it will go.
2. Insert item (B) with the wider part facing inwards, so that
the two wider parts come into contact.
3.
When you fit the impeller be careful to avoid cutting the
rubber of item (B) when the spring is being compressed.
Replacement of Rubber Ball
1. Unscrew and raise the valve-holder cover (AGRI and STAR series) or the manifold (MEC series);
2. Replace the rubber ball;
3.
Re-fit the valve-holder cover (AGRI and STAR series) or the manifold (MEC series).
Replacement of Gears
1. Unscrew the screws of the gearbox cover;
2. Use two screws for screwing into the threaded extraction holes until the cover is removed;
3. Take out the gear with splined shaft using an extractor if necessary;
4. For the pinion: unscrew the self-locking nut, use an extractor.
Summary of Contents for 1150 Slurry Vac
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Page 80: ...76 www major equipment com STEERED TANDEM AXLE HEAVY DUTY AFTER HR16634 BNRAXL1XCN001_E A ...
Page 84: ...80 www major equipment com STEERED TANDEM AXLE HEAVY DUTY AFTER HR16634 BNRAXL1XCN001_E C ...
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