Putting into service
Power harrows
HRB353D - 403D
29
Parallelism of lower linkage arms
Adjust tractor lift rods so that lower linkage arms are at
equal height from ground.
Preparing the machine (HRB403D)
Categories of linkage
The lower coupling yokes can be placed in 2 different
positions:
• Category 2 linkage (a) (Position only to be used on
exceptional occasions)
L=825mm(2’8’’).
• Category 3 linkage (b)
L=925mm(3’03’’).
This position must be used when the power
harrow is used in combination with a seed
drill.
The machine is supplied with lower coupling
yokes fitted in position (b).