Great Plains EWD13 4109R+ Operator Manual - Manual (Page 19)

4/3/95 4-1
175-083M-A
DRIVE TRAIN OPERATIONS
CLUTCH
The main drive clutch (#1) on your drill is a mechanical re-
lease - jaw style design, which may require some adjust-
ments before using your drill. Raise the drill openers to the
transport position. Check between the two cam plates
which disengage the jaws of the clutch halves (#2) & (#3).
The clutch jaws (#4) & (#5) should be completely separat-
ed at this point. Adjustments can be made to the cam
plate (#2) that is bolted to the slot (#6) in the box frame.
Clutch Actuator
Fig. 8
11550
CHAIN DRIVE
This grain drill uses standard no. 40 roller chain through
out its drive system. The drive system is simple and de-
signed for low maintenance. At the speed change box and
inside the double wall end panel on the left end of your drill
are spring loaded chain idlers that should be checked at
the beginning of each season to insure that chain wear
has not exceeded the travel of the idler arm and spring.
To do a maintenance check, simply remove the inspection
cover from the inside of the box end panel and move idler
arms back and forth to insure that they have not seized to
their pivot bolt.
On fertilizer drills the inspection cover for the fertilizer
drive is located on the outside of the left box end panel.
This cover must be removed to inspect the fertilizer drive
chain and idler.
By loosening the cam plate (#2) and rotating it, the clutch
may be adjusted to engage quicker or slower as the drill
openers are being lowered. Whenever adjusting the
clutch, check to be sure the clutch jaws (#4) & (#5) are en-
gaged completely when the openers are in the field posi-
tion. The clutch jaws should also be completely
disengaged when the openers are raised for transport.