Hitching tractor to implement, Check/change hitch configuration 2013, Category 3 hitch pins – Great Plains LC40 Operator Manual User Manual
Page 17: Category 4 hitch pins, Category 3 hitch pins category 4 hitch pins

Great Plains Manufacturing, Inc.
Preparation and Setup
13
2014-07-21
591-049M
Hitching Tractor to Implement
Check/Change Hitch Configuration 2013-
These instructions apply to LC40 models manufactured
in 2013. For 2014+ see page 14.
Choose a hitch option that is compatible with your tractor
3-point. The LC40 has two ASABE S217 / ISO 730-1
hitch configurations:
Category 3 (80 to 225 hp / 60 to 168 kW)
Category 4 (180 to 400 hp / 135 to 300 kW)
Changing between categories requires exchanging pins
and bushings at the implement hitch.
Refer to Figure 3 (showing only the hitch plates; depicting
Category 3 arm pins and bushings installed, and Category 3
link pin stored)
Category 3 Hitch Pins
1.
Remove the Category 3 link (upper) pin
from the
upper rear storage hole. Relocate it to the lower
holes
of the upper hitch plates. The upper
Category 4 link pin
may be left in the upper
plates.
2.
At the rear of the lower hitch plates, remove two:
805-168C PIN HTCH 1.44X8.38 USBL
These are the smaller of the lower hitch pins.
3.
Also remove four sets:
803-027C NUT HEX 3/4-10 PLT
804-023C WASHER LOCK SPRING 3/4 PLT
802-086C HHCS 3/4-10X2 3/4 GR5
591-031H CAT 3 WIDE BUSHING WELDMENT
The bushings are required to reduce the hole sizes
at the lower forward pin holes.
4.
Remove the Category 4 arm pins
from the
forward holes of the lower hitch plates. Store them in
the rear holes of the plates.
5.
Mount the bushings
on the outside faces
a
of the
inner hitch plates, using the bolts
, lock
washers
and nuts
.
Category 4 Hitch Pins
1.
Remove the Category 3 link (upper) pin
from
lower holes
of the upper hitch plates. Relocate it to
the upper rear storage hole. The upper Category 4
link pin
should already be in place in the upper
plates.
2.
At the rear of the lower hitch plates, remove two:
591-127D PIN 2 X 10 7/8 USABLE 1045
These are the larger of the lower hitch pins.
3.
At the forward holes of the lower hitch plates, remove
the two Category 3 hitch pins
. Relocate the
bushings
to the lower rear holes, and secure with
bolts
, lock washers
and nuts
.
Figure 3
Changing Hitch Category 2013-
34864
22
41
25
14
39
37
1
14
35
31
37
41
39
a. Or as needed to accommodate the spacing of the tractor lift arms.
31
35
25
14
22
14
25
35
31
37
41
22
39
14
25
35
31