Toe-In Of The Wheels Of The Front Driving Axle; Adjustment Of Toe-In Of The Wheels Of The Front Driving Axle - Zetor FORTERRA HSX 120 Operator's Manual

Toe-in of the wheels of the front driving axle

Proper toe-in or toe-out (S) of front wheels in a tractor with front drive axle is measured on wheels´ rim
Toe-in or toe-out is determined by the difference of measured values.
Tractors with solid front drive axle
b = a + 0 to 2 mm
Tractors with suspension front drive axle
S value changes with height setting of front part of the tractor (see DRIVING OPERATION chapter).
Front part of tractor in the highest position
b = a - 3.3 to 4.2 mm
Front part of tractor in the medium position
b = a + 0.3 mm
Front part of tractor in the lowest position
b = a + 2.2 to 2.8 mm

Adjustment of toe-in of the wheels of the front driving axle

Note: Tractors are in standard equipped with hydrostatic device.
Set the wheel symmetrically with longitudinal axis of a tractor.

Measure the distance between rims in the front on horizontal level of wheel axis. Mark the place of

measurement.
Travel forward with a tractor so that the marked places would be on horizontal level of rear wheel axis

(turn by 180°) and remeasure the distance between marked places.
Release locking nuts of ball joint heads (2) of connecting rods of devices in hydraulic cylinder.

Adjust toe-in by turning the pin of ball joint (3). Do the adjusting symmetrically with both joints to keep

the same lock of wheels to both sides (do the measurement on the sides of rims).
Locking nuts of heads of ball joints (2), tighten with a torque of 122 - 136 N. Upper surfaces of heads

must be (1) parallel.
WHEEL TRACK CHANG
PGPPN100
PGPPN096
165