Stiga 13-7454-11, Workshop Manual

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Steering cylinder 1135-2808-01
1. Drain the oil through both the connec-
12.Install the new seals.
tions.
2. Slide in the piston to the end (does not
need to be right to the bottom).
3. Heat the outside of the cylinder pipe
Note In this position all surfaces
must be visually checked for
scratches and other contamina-
tion.
(use heat gun for 7-10 min).
Take care as there is a risk of
burn injury.
4. Unthread the collar and pull out the
whole bar.
5. Look inside the pipe and at the bar, if
there are scratches, rust etc. stop and
replace the whole cylinder.
6. If the pipe and bar are ok, remove the
piston seal, heat the piston and the
bar at the end, when the adhesive car-
bonises there will be a small white
cloud.
After all seal changes the cylinder must
be reinstalled.
1. Polish off the adhesive from the
threads in the pipe. Clean using sol-
vent.
2. Clean the cylinder pipe so that it is
free of contamination and other dirt.
3. Polish the piston shaft so that it is free
of contamination.
4. Polish off the adhesive from the
threads on the shaft. Clean using sol-
vent.
5. Apply a little oil inside the collar.
Note Do not heat the sealing surface
of the piston.
6. Thread the collar onto the bar.
7. Apply Loctite 270 to the piston and the
threads of the shaft (not so much that
7. Remove the piston using a wrench.
Be careful when removing the pis-
ton because it is very hot.
8. Wait until the bar has cooled, then re-
move the collar.
9. Polish off the adhesive from the
threads on the shaft. Clean using sol-
vent.
10. Remove all seals.
it runs).
8. Thread on the piston.
9. Tighten the piston to a torque of 240
Nm, if over-torqued the thread can be
stripped and if under-torqued the pis-
ton can work loose over time.
10. Apply a little oil around the pipe, on
the piston seal and the collar O-ring.
11. Install the piston and collar in the pipe.
Note Sealing surfaces are sensitive
to scratches, take care not to
use sharp objects or steel.
11. Clean the piston and collar so that
they are free of contamination.
WORKSHOP MANUAL
TITAN
Chapter
3 - Steering system
EDITION
2018
Page
4 1