HATTAT A110 - Steering System; Checking and Adjusting Toe- in of Front Wheels; Adjusting Toe-In 2 WD

69
must be bled before bleeding the brakes, because
their bleeding nipples are placed lower down:
- the fluid brakes of the trailer, see the bleeding
instructions.
- the air pressure brakes, see the bleeding
instructions.
Total technically permissible mass(es) of the
tractor-trailer combination for each braking configuration
of the trailer
With unbraked trailer : 16000
With braked trailer : 35000
There is a pneumatic graphic of air pressure brake system mentioned at the above.
9.5. Steering system
9.5.1. Checking and adjusting toe-
in of front wheels
First check that there is no play on the ball joints of
the steering arms and tie rod. Set the wheels for
running straight ahead.
Checking
Make a vertical mark on the front edge of both front
tyres/tires on the middle of the tread level with the
hubs. Measure the distance between the marks.
Roll the tractor forwards so that the marks again
come level with the hub, this time at the rear edge.
Measure the distance between the marks again.
The measurement should be larger at the rear
edge, 2-5 mm more on two-wheel drive tractors and
0-2 mm more on four-wheel drive tractors.
9.5.1.1. Adjusting toe-in 2WD
- Loosen the tie rod bolts (1) and slacken the