Vehicles after change point in 1982
REPLACING TIRE:
Refer to operating instructions supplied with pertinent tire mounting machine
for correct mounting of tires.
However, also make sure that the machine is in perfect condition and that the wheel rim
and tire are not damaged.
General Tire Removing / Mounting Instructions.
Removing
Removal of a tire begins at the valve.
After pressing the tire off of the rim flange, remove balance weights, press tire bead into
well and coat thoroughly with tire mounting paste.
Clean wheel rim thoroughly and inspect rim for damage before mounting the tire.
The valve and valve insert must be replaced each time a tubeless tire is removed
and installed.
Because of a tight fitting tire, it could often be necessary to loosen the tire on the
inside and outside by applying the pressing-off horn on the bead periphery at several
points before pressing-off the tire.

Mounting
Coat tire bead with tire mounting paste.
Make sure tire is mounted on correct side, especially in case of asymmetric tires.
The "outside" of these tires is marked (1).
In addition, the green dot on the tire must be aligned with the punch mark in the rim flange.
Mount tire with as little as possible stress on the beads, since otherwise there would be
danger of damaging the tire.
After inflating the tire with max. 4 bar (57 psi) inflation pressure, visually check the tire
seating on the basis of the bead grooves.

If the tire is not seated on the rim correctly, increasing the inflation pressure
will not improve the tire seating!.
Instead it will be necessary to press off both tire beads, apply another coat of tire
mounting paste and to inflate the tire again.
Refer to Service Information of Group 36 for approved tires, tire size and wheel rims
as well as special equipment.

Mounting Tires with a Modern Mounting Machine
Unscrew valve and deflate the tire.
Press off tire bead from rim flange all around on outside and inside with pressing-off horn
of the machine.
If tire beads fit too tight, first only loosen tire from flange at several points with the
pressing-off horn prior to the actual pressing-off.
Push both tire beads into rim well completely until they are loose.
Pull off balance weights on rim and clean rim to remove large pieces of dirt.
Coat tire beads with mounting paste.
Clamp wheel on mounting machine.
Narrow rim shoulder always faces up.

Swing mounting pillar into position or tilt and let it engage.
Adjust mounting head, whereby it must be pressed on the rim edge fully and turn down
the lever for the clamp; normally the distance of the mounting head will set in
automatically.
Valve should be about 10 cm (4") to the right of the mounting head.
Lift tire bead over mounting finger with tire irons.
Use coated or shrink-fit hose covered tire irons for aluminum rims.

Let mounting machine run back a short distance (counterclockwise) so that
the tire bead can slide fully on the mounting finger.
Then let mounting machine run forward (clockwise) a short distance.
In so doing always check, whether the bottom bead is fully in the well and the tire is
given enough time to move.
Stop the machine and let it run back slightly, if the bead clamps.

Now also lift the bottom bead over the mounting finger with the tire iron.
Let machine run back a short distance again and then forward (clockwise) briefly,
until there is complete separation of the tire from the rim.

Release lock and tilt back or swing away the mounting pillar.
Unclamp and clean the rim
Replace the valve.
Coat the rim flange and tire beads with mounting paste.
Clamp the rim on the mounting machine.
Slide on the tire with the lower bead over the rim flange partially.
Valve is 10 cm (4") ti the right of the mounting head.

Swing or tilt the mounting pillar into position and lock.
Check adjustment of the mounting finger, readjusting if necessary and clamp.
Press the tire underneath the mounting finger by hand.
Tire bead should seat in the roller next to the mounting finger.
Let the mounting machine run forward (clockwise) a short distance.
The lower tire bead will drop into the well.

Press the upper tire bead underneath the mounting finger.
Tire bead should seat in rollers next to the mounting finger.
Important!
Don't pinch or damage the bead.
Run the mounting machine forward (clockwise) a short distance, while checking
that the lower tire bead remains in the well.
After mounting, first release the clamps and then inflate the tire (without valve insert).
Increase pressure to 3 bar (43 psi).
If the tire bead does not slide on to the rim edge all around, do not increase the
pressure.
Instead the tire must be deflated and the tire bead pressed off, then coat the rim flange
with mounting paste again and inflate again with 3 bar (43 psi) pressure.
Screw in the valve and correct the tire inflation pressure.