ADJUSTMENTS 10
en-72
10.10 DOWN PRESSURE_________________________________________________________
Each reel has a down pressure spring. Down pressure
improves the cutting quality by contact between the reel
and ground. Check and adjust the down pressure any
time the HOC is changed or to improve the cut for the
best performance.
1. Lift the reels to the transport position. Put the
adjustment pin in 4th hole from ball joint. Lower the
reels on a flat surface before you measure the
down pressure.
2. Set the distance between the ball joint center and
the rod pin center to 8-15/16 in. ± 1/16 in. (22.7 mm
± 0.2 cm). To adjust the length, loosen the jam nut
and rotate the rod into or out of the ball joint.
3. Measure length of spring as shown on all 5 reels.
Record the shortest spring dimension. Adjust the
ball joint to get the other springs to the same dimension ± 1/16 in. (0.2 cm). The rod pin must be horizontal, then
tighten the jam nut.
4. To adjust the down pressure, move the adjustment pin one hole toward the spring to increase the down pressure
on the rear roller. Move the adjustment pin one hole away from the spring to decrease the down pressure on the
rear roller.
Ball
Joint
Jam
Nut
Adjustment
Pin
8-15/16 in.
(22.7 cm)
Rod
Pin
Rod
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