Land Pride STH1590, Руководство оператора

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Section 2: Adjustments
Table of Contents
STH1590 Spike Tooth Harrow 322-314M 5/9/19
11
Hitch Height & Chain Adjustment
Refer to Figure 2-3:
1. Using tractor’s 3-Point hydraulic control lever, raise,
or lower 3-Point lift arms until harrow bars (#1)and
hitch pivot point (#2) are all an equal distance off the
ground from front to back when traveling forward.
2. Set tractor’s 3-Point hydraulic control lever stop at
this height.
1.
Remove linchpins (#3).
2.
Shorten or lengthen lift chains (#4) by dropping and
equal amount of links on both chains and inserting
the end link not dropped into slots (#5).
3.
Replace linchpins (#3). make sure they are secured
to the chain link.
Spike Tooth Angle Adjustment
WARNING
!
To avoid serious injury or death:
•
Wear a pair of gloves when adjusting angle of the spike
teeth to help protect hands from bruises and pinch points.
IMPORTANT: The harrow bars (#1) and the hitch
pivot point (#2) should all be equal distance from the
ground as the harrow is pulled forward by the tractor.
It is subject to uneven tooth wear if one end is lower
than the other.
NOTE: Lift chains (#4) should sag to allow the
harrow to follow the contour of the ground when
going over raises such as terraces, but not so slack
that the back teeth will not raise soon after the front
is lifted off the ground.
•
The spike teeth should be supported off the ground before
adjusting angle of spike teeth. Harrow may rotate suddenly
while removing bolt to change tooth angle creating a pinch
point hazard and/or falling hazard. Pulling on the angle
adjustment lever with teeth resting on the ground can strain
a person’s back and/or body extremities.
Refer to Figure 2-4:
1. Raise harrow up until spike teeth are off the ground.
2. Place supports tall enough to support the teeth off
the ground under the support harrow frame and then
lower harrow onto the supports.
3. Place gear selector in park, shut tractor engine off,
set park brake, and remove switch key.
4. Remove locknut (#4) and bolt (#3).
5. Move adjustment lever (#2) forward or backward to
the preferred spike tooth angle.
6. Align hole in adjustment bar (#1) with hole in
adjustment lever (#2) and secure with bolt (#3) and
locknut (#4). Tighten locknut to the correct torque.
Spike Tooth Angle Adjustment
Figure 2-4
33079
3-Point Height & Chain Adjustment
Figure 2-3
33055