M
AINTENANCE
& I
NSPECTION
C
HAPTER
9
9-33
THP 94/42 R 4 XXT
THP 125/42 R 4 XXT
THP 140 H/42 R 4 XXT
GB-07.2005
1
2
Fig. 9.33 Changing the agitator blades
NOTE:
To increase the working life of the conveying cylinders, these can be turned
by 180
°
. Be sure to turn the conveying cylinders at the right tim.
If the wear has already passed the point of no return, the
conveying cylinders must be replaced.
7.
Refit the conveying cylinders in the reverse sequence to removal.
8.
Fit the conveying pistons and oscillation pipe as described in section 9.9.2.
9.
Manually activate valves Y3 and Y4 or the rocker switch (Item 11, Fig. 5.2) to slowly extend the right hand
drive cylinder.
10.
Bleed air from the drive cylinder.
11.
Perform a trial run.
9.9.4
Changing the agitator blades
1.
Remove the screws (
2
).
2.
Change the agitator blades (
1
). Check that the seating
faces are clean. The right hand agitator blades must be
90
°
out of phase with the left hand blades.
3.
Fit the screws (
2
) and tighten them to the torque set out
in the table in section 9.3. Always replace these screws.
